.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,52 +0,0 @@
----
-name: Bug report
-about: Report a bug encountered while running prometheus-adapter
-title: ''
-labels: kind/bug
-assignees: ''
-
----
-
-<!-- Please use this template while reporting a bug and provide as much info as possible. Not doing so may result in your bug not being addressed in a timely manner. Thanks!
-
-If the matter is security related, please disclose it privately see https://github.com/kubernetes/kube-state-metrics/blob/master/SECURITY.md
--->
-
-**What happened?**:
-
-**What did you expect to happen?**:
-
-**Please provide the prometheus-adapter config**:
-<details open>
-<summary>prometheus-adapter config</summary>
-
-<!--- INSERT config HERE --->
-
-</details>
-
-**Please provide the HPA resource used for autoscaling**:
-<details open>
-<summary>HPA yaml</summary>
-
-<!--- INSERT yaml HERE --->
-
-</details>
-
-**Please provide the HPA status**:
-
-**Please provide the prometheus-adapter logs with -v=6 around the time the issue happened**:
-<details open>
-<summary>prometheus-adapter logs</summary>
-
-<!--- INSERT logs HERE --->
-
-</details>
-
-**Anything else we need to know?**:
-
-**Environment**:
-- prometheus-adapter version: 
-- prometheus version: 
-- Kubernetes version (use `kubectl version`):
-- Cloud provider or hardware configuration:
-- Other info:

.gitignore

@@ -1,5 +1,4 @@
 *.swp
 *~
-/vendor
+_output
-/adapter
+deploy/adapter
-.e2e

.golangci.yml

@@ -1,39 +0,0 @@
-run:
-  deadline: 5m
-
-linters:
-  disable-all: true
-  enable:
-    - bodyclose
-    - dogsled
-    - dupl
-    - errcheck
-    - exportloopref
-    - gocritic
-    - gocyclo
-    - gofmt
-    - goimports
-    - gosec
-    - goprintffuncname
-    - gosimple
-    - govet
-    - ineffassign
-    - misspell
-    - nakedret
-    - nolintlint
-    - revive
-    - staticcheck
-    - stylecheck
-    - typecheck
-    - unconvert
-    - unused
-    - whitespace
-
-linters-settings:
-  goimports:
-    local-prefixes: sigs.k8s.io/prometheus-adapter
-  revive:
-    rules:
-      - name: exported
-        arguments:
-          - disableStutteringCheck

.travis-deploy.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -x
+docker login -u "$DOCKER_USERNAME" -p "$DOCKER_PASSWORD"
+
+if [[ -n $TRAVIS_TAG ]]; then
+    make push VERSION=${TRAVIS_TAG}
+else
+    make push-amd64
+fi

.travis.yml

@@ -0,0 +1,26 @@
+language: go
+
+go:
+- '1.13'
+
+# blech, Travis downloads with capitals in DirectXMan12, which confuses go
+go_import_path: github.com/directxman12/k8s-prometheus-adapter
+
+script: make verify && git diff --exit-code
+
+sudo: required
+services:
+- docker
+
+env:
+- GO111MODULE=on
+
+deploy:
+- provider: script
+  script: bash .travis-deploy.sh
+  on:
+    branch: master
+- provider: script
+  script: bash .travis-deploy.sh
+  on:
+    tags: true

Dockerfile

@@ -1,22 +0,0 @@
-ARG ARCH
-ARG GO_VERSION
-
-FROM golang:${GO_VERSION} as build
-
-WORKDIR /go/src/sigs.k8s.io/prometheus-adapter
-COPY go.mod .
-COPY go.sum .
-RUN go mod download
-
-COPY pkg pkg
-COPY cmd cmd
-COPY Makefile Makefile
-
-ARG ARCH
-RUN make prometheus-adapter
-
-FROM gcr.io/distroless/static:latest-$ARCH
-
-COPY --from=build /go/src/sigs.k8s.io/prometheus-adapter/adapter /
-USER 65534
-ENTRYPOINT ["/adapter"]

Makefile

@@ -1,118 +1,84 @@
-REGISTRY?=gcr.io/k8s-staging-prometheus-adapter
+REGISTRY?=directxman12
-IMAGE=prometheus-adapter
+IMAGE?=k8s-prometheus-adapter
+TEMP_DIR:=$(shell mktemp -d)
 ARCH?=$(shell go env GOARCH)
 ALL_ARCH=amd64 arm arm64 ppc64le s390x
-GOPATH:=$(shell go env GOPATH)
+ML_PLATFORMS=linux/amd64,linux/arm,linux/arm64,linux/ppc64le,linux/s390x
+OUT_DIR?=./_output
 
-VERSION=$(shell cat VERSION)
+VERSION?=latest
-TAG_PREFIX=v
+GOIMAGE=golang:1.13
-TAG?=$(TAG_PREFIX)$(VERSION)
+GO111MODULE=on
+export GO111MODULE
 
-GO_VERSION?=1.22.5
+ifeq ($(ARCH),amd64)
-GOLANGCI_VERSION?=1.56.2
+	BASEIMAGE?=busybox
-
+endif
-.PHONY: all
+ifeq ($(ARCH),arm)
-all: prometheus-adapter
+	BASEIMAGE?=armhf/busybox
-
+endif
-# Build
+ifeq ($(ARCH),arm64)
-# -----
+	BASEIMAGE?=aarch64/busybox
-
+endif
-SRC_DEPS=$(shell find pkg cmd -type f -name "*.go")
+ifeq ($(ARCH),ppc64le)
-
+	BASEIMAGE?=ppc64le/busybox
-prometheus-adapter: $(SRC_DEPS)
+endif
-	CGO_ENABLED=0 GOARCH=$(ARCH) go build sigs.k8s.io/prometheus-adapter/cmd/adapter
+ifeq ($(ARCH),s390x)
-
+	BASEIMAGE?=s390x/busybox
-.PHONY: container
-container:
-	docker build -t $(REGISTRY)/$(IMAGE)-$(ARCH):$(TAG) --build-arg ARCH=$(ARCH) --build-arg GO_VERSION=$(GO_VERSION) .
-
-# Container push
-# --------------
-
-PUSH_ARCH_TARGETS=$(addprefix push-,$(ALL_ARCH))
-
-.PHONY: push
-push: container
-	docker push $(REGISTRY)/$(IMAGE)-$(ARCH):$(TAG)
-
-push-all: $(PUSH_ARCH_TARGETS) push-multi-arch;
-
-.PHONY: $(PUSH_ARCH_TARGETS)
-$(PUSH_ARCH_TARGETS): push-%:
-	ARCH=$* $(MAKE) push
-
-.PHONY: push-multi-arch
-push-multi-arch: export DOCKER_CLI_EXPERIMENTAL = enabled
-push-multi-arch:
-	docker manifest create --amend $(REGISTRY)/$(IMAGE):$(TAG) $(shell echo $(ALL_ARCH) | sed -e "s~[^ ]*~$(REGISTRY)/$(IMAGE)\-&:$(TAG)~g")
-	@for arch in $(ALL_ARCH); do docker manifest annotate --arch $${arch} $(REGISTRY)/$(IMAGE):$(TAG) $(REGISTRY)/$(IMAGE)-$${arch}:$(TAG); done
-	docker manifest push --purge $(REGISTRY)/$(IMAGE):$(TAG)
-
-# Test
-# ----
-
-.PHONY: test
-test:
-	CGO_ENABLED=0 go test ./cmd/... ./pkg/...
-
-.PHONY: test-e2e
-test-e2e:
-	./test/run-e2e-tests.sh
-
-
-# Static analysis
-# ---------------
-
-.PHONY: verify
-verify: verify-lint verify-deps verify-generated
-
-.PHONY: update
-update: update-lint update-generated
-
-# Format and lint
-# ---------------
-
-HAS_GOLANGCI_VERSION:=$(shell $(GOPATH)/bin/golangci-lint version --format=short)
-.PHONY: golangci
-golangci:
-ifneq ($(HAS_GOLANGCI_VERSION), $(GOLANGCI_VERSION))
-	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v$(GOLANGCI_VERSION)
 endif
 
-.PHONY: verify-lint
+.PHONY: all docker-build push-% push test verify-gofmt gofmt verify build-local-image
-verify-lint: golangci
-	$(GOPATH)/bin/golangci-lint run --modules-download-mode=readonly || (echo 'Run "make update-lint"' && exit 1)
 
-.PHONY: update-lint
+all: $(OUT_DIR)/$(ARCH)/adapter
-update-lint: golangci
-	$(GOPATH)/bin/golangci-lint run --fix --modules-download-mode=readonly
 
+src_deps=$(shell find pkg cmd -type f -name "*.go")
+$(OUT_DIR)/%/adapter: $(src_deps)
+	CGO_ENABLED=0 GOARCH=$* go build -tags netgo -o $(OUT_DIR)/$*/adapter github.com/directxman12/k8s-prometheus-adapter/cmd/adapter
+	
+docker-build:
+	cp deploy/Dockerfile $(TEMP_DIR)
+	cd $(TEMP_DIR) && sed -i "s|BASEIMAGE|$(BASEIMAGE)|g" Dockerfile
 
-# Dependencies
+	docker run -it -v $(TEMP_DIR):/build -v $(shell pwd):/go/src/github.com/directxman12/k8s-prometheus-adapter -e GOARCH=$(ARCH) $(GOIMAGE) /bin/bash -c "\
-# ------------
+		CGO_ENABLED=0 go build -tags netgo -o /build/adapter github.com/directxman12/k8s-prometheus-adapter/cmd/adapter"
 
-.PHONY: verify-deps
+	docker build -t $(REGISTRY)/$(IMAGE)-$(ARCH):$(VERSION) $(TEMP_DIR)
-verify-deps:
+	rm -rf $(TEMP_DIR)
-	go mod verify
+
+build-local-image: $(OUT_DIR)/$(ARCH)/adapter
+	cp deploy/Dockerfile $(TEMP_DIR)
+	cp  $(OUT_DIR)/$(ARCH)/adapter $(TEMP_DIR)
+	cd $(TEMP_DIR) && sed -i "s|BASEIMAGE|scratch|g" Dockerfile
+	docker build -t $(REGISTRY)/$(IMAGE)-$(ARCH):$(VERSION) $(TEMP_DIR)
+	rm -rf $(TEMP_DIR)
+
+push-%:
+	$(MAKE) ARCH=$* docker-build
+	docker push $(REGISTRY)/$(IMAGE)-$*:$(VERSION)
+
+push: ./manifest-tool $(addprefix push-,$(ALL_ARCH))
+	./manifest-tool push from-args --platforms $(ML_PLATFORMS) --template $(REGISTRY)/$(IMAGE)-ARCH:$(VERSION) --target $(REGISTRY)/$(IMAGE):$(VERSION)
+
+./manifest-tool:
+	curl -sSL https://github.com/estesp/manifest-tool/releases/download/v0.5.0/manifest-tool-linux-amd64 > manifest-tool
+	chmod +x manifest-tool
+
+vendor:
 	go mod tidy
-	@git diff --exit-code -- go.mod go.sum
+	go mod vendor
 
-# Generation
+test:
-# ----------
+	CGO_ENABLED=0 go test ./pkg/...
 
-generated_files=pkg/api/generated/openapi/zz_generated.openapi.go
+verify-gofmt:
+	./hack/gofmt-all.sh -v
 
-.PHONY: verify-generated
+gofmt:
-verify-generated: update-generated
+	./hack/gofmt-all.sh
-	@git diff --exit-code -- $(generated_files)
 
-.PHONY: update-generated
+go-mod:
-update-generated:
+	go mod tidy
-	go install -mod=readonly k8s.io/kube-openapi/cmd/openapi-gen
+	go mod vendor
-	$(GOPATH)/bin/openapi-gen --logtostderr \
+	go mod verify
-		--go-header-file ./hack/boilerplate.go.txt \
+
-		--output-pkg ./pkg/api/generated/openapi \
+verify: verify-gofmt go-mod test
-		--output-file zz_generated.openapi.go \
-		--output-dir ./pkg/api/generated/openapi \
-		-r /dev/null \
-		"k8s.io/metrics/pkg/apis/custom_metrics" "k8s.io/metrics/pkg/apis/custom_metrics/v1beta1" "k8s.io/metrics/pkg/apis/custom_metrics/v1beta2" "k8s.io/metrics/pkg/apis/external_metrics" "k8s.io/metrics/pkg/apis/external_metrics/v1beta1" "k8s.io/metrics/pkg/apis/metrics" "k8s.io/metrics/pkg/apis/metrics/v1beta1" "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/api/resource" "k8s.io/apimachinery/pkg/version" "k8s.io/api/core/v1"

NOTICE

@@ -1,16 +0,0 @@
-When donating the k8s-prometheus-adapter project to the CNCF, we could not
-reach all the contributors to make them sign the CNCF CLA. As such, according
-to the CNCF rules to donate a repository, we must add a NOTICE referencing
-section 7 of the CLA with a list of developers who could not be reached.
-
-`7. Should You wish to submit work that is not Your original creation, You may
-submit it to the Foundation separately from any Contribution, identifying the
-complete details of its source and of any license or other restriction
-(including, but not limited to, related patents, trademarks, and license
-agreements) of which you are personally aware, and conspicuously marking the
-work as "Submitted on behalf of a third-party: [named here]".`
-
-Submitted on behalf of a third-party: Andrew "thisisamurray" Murray
-Submitted on behalf of a third-party: Duane "duane-ibm" D'Souza
-Submitted on behalf of a third-party: John "john-delivuk" Delivuk
-Submitted on behalf of a third-party: Richard "rrtaylor" Taylor

OWNERS

@@ -1,17 +0,0 @@
-# See the OWNERS docs at https://go.k8s.io/owners
-approvers:
-  - dgrisonnet
-  - logicalhan
-  - dashpole
-
-reviewers:
-  - dgrisonnet
-  - olivierlemasle
-  - logicalhan
-  - dashpole
-
-emeritus_approvers:
-- brancz
-- directxman12
-- lilic
-- s-urbaniak

README.md

@@ -1,7 +1,10 @@
 # Prometheus Adapter for Kubernetes Metrics APIs
 
-This repository contains an implementation of the Kubernetes Custom, Resource and External
+[![Build Status](https://travis-ci.org/DirectXMan12/k8s-prometheus-adapter.svg?branch=master)](https://travis-ci.org/DirectXMan12/k8s-prometheus-adapter)
-[Metric APIs](https://github.com/kubernetes/metrics).
+
+This repository contains an implementation of the Kubernetes
+[resource metrics](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/instrumentation/resource-metrics-api.md) API and
+[custom metrics](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/instrumentation/custom-metrics-api.md) API.
 
 This adapter is therefore suitable for use with the autoscaling/v2 Horizontal Pod Autoscaler in Kubernetes 1.6+.  
 It can also replace the [metrics server](https://github.com/kubernetes-incubator/metrics-server) on clusters that already run Prometheus and collect the appropriate metrics.
@@ -15,30 +18,13 @@ Quick Links
 
 Installation
 -------------
-If you're a helm user, a helm chart is listed on prometheus-community repository as [prometheus-community/prometheus-adapter](https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus-adapter).
+If you're a helm user, a helm chart is listed on the Kubeapps Hub as [stable/prometheus-adapter](https://github.com/helm/charts/blob/master/stable/prometheus-adapter/README.md).
 
 To install it with the release name `my-release`, run this Helm command:
 
-For Helm2
 ```console
-$ helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
+$ helm install --name my-release stable/prometheus-adapter
-$ helm repo update
-$ helm install --name my-release prometheus-community/prometheus-adapter
 ```
-For Helm3 ( as name is mandatory )
-```console
-$ helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
-$ helm repo update
-$ helm install my-release prometheus-community/prometheus-adapter
-```
-
-Official images
----
-All official images for releases after v0.8.4 are available in `registry.k8s.io/prometheus-adapter/prometheus-adapter:$VERSION`. The project also maintains a [staging registry](https://console.cloud.google.com/gcr/images/k8s-staging-prometheus-adapter/GLOBAL/) where images for each commit from the master branch are published. You can use this registry if you need to test a version from a specific commit, or if you need to deploy a patch while waiting for a new release.
-
-Images for versions v0.8.4 and prior are only available in unofficial registries:
-* https://quay.io/repository/coreos/k8s-prometheus-adapter-amd64
-* https://hub.docker.com/r/directxman12/k8s-prometheus-adapter/
 
 Configuration
 -------------
@@ -49,7 +35,7 @@ will attempt to using [Kubernetes in-cluster
 config](https://kubernetes.io/docs/tasks/access-application-cluster/access-cluster/#accessing-the-api-from-a-pod)
 to connect to the cluster.
 
-It takes the following additional arguments specific to configuring how the
+It takes the following addition arguments specific to configuring how the
 adapter talks to Prometheus and the main Kubernetes cluster:
 
 - `--lister-kubeconfig=<path-to-kubeconfig>`: This configures
@@ -58,26 +44,11 @@ adapter talks to Prometheus and the main Kubernetes cluster:
   in-cluster config.
 
 - `--metrics-relist-interval=<duration>`: This is the interval at which to
-  update the cache of available metrics from Prometheus. By default, this
+  update the cache of available metrics from Prometheus.  Since the adapter
-  value is set to 10 minutes.
+  only lists metrics during discovery that exist between the current time and
-
+  the last discovery query, your relist interval should be equal to or larger
-- `--metrics-max-age=<duration>`: This is the max age of the metrics to be
+  than your Prometheus scrape interval, otherwise your metrics will
-  loaded from Prometheus. For example, when set to `10m`, it will query
+  occaisonally disappear from the adapter.
-  Prometheus for metrics since 10m ago, and only those that has datapoints
-  within the time period will appear in the adapter. Therefore, the metrics-max-age
-  should be equal to or larger than your Prometheus' scrape interval,
-  or your metrics will occaisonally disappear from the adapter.
-  By default, this is set to be the same as metrics-relist-interval to avoid
-  some confusing behavior (See this [PR](https://github.com/kubernetes-sigs/prometheus-adapter/pull/230)).
-
-  Note: We recommend setting this only if you understand what is happening.
-  For example, this setting could be useful in cases where the scrape duration is
-  over a network call, e.g. pulling metrics from AWS CloudWatch, or Google Monitoring,
-  more specifically, Google Monitoring sometimes have delays on when data will show
-  up in their system after being sampled. This means that even if you scraped data
-  frequently, they might not show up soon. If you configured the relist interval to
-  a short period but without configuring this, you might not be able to see your
-  metrics in the adapter in certain scenarios.
 
 - `--prometheus-url=<url>`: This is the URL used to connect to Prometheus.
   It will eventually contain query parameters to configure the connection.
@@ -220,12 +191,3 @@ large as your collection interval.
 I have namespace prefixed metrics like `{ "name": "namespaces/node_memory_PageTables_bytes", "singularName": "", "namespaced": false, "kind": "MetricValueList", "verbs": [ "get" ] }`, but I get error `Error from server (InternalError): Internal error occurred: unable to list matching resources` when access with `kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1/namespaces/*/node_memory_PageTables_bytes` .
 
 Actually namespace prefixed metrics are special, we should access them with `kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1/namespaces/*/metrics/node_memory_PageTables_bytes`.
-
-## Community, discussion, contribution, and support
-
-Learn how to engage with the Kubernetes community on the [community page](http://kubernetes.io/community/).
-
-You can reach the maintainers of this project at:
-
-- [Slack](http://slack.k8s.io/)
-- [Mailing List](https://groups.google.com/forum/#!forum/kubernetes-dev)

RELEASE.md

@@ -1,13 +0,0 @@
-# Release Process
-
-prometheus-adapter is released on an as-needed basis. The process is as follows:
-
-1. An issue is proposing a new release with a changelog since the last release
-1. At least one [OWNERS](OWNERS) must LGTM this release
-1. A PR that bumps version hardcoded in code is created and merged
-1. An OWNER creates a draft Github release
-1. An OWNER creates a release tag using `git tag -s $VERSION`, inserts the changelog and pushes the tag with `git push $VERSION`. Then waits for [prow.k8s.io](https://prow.k8s.io) to build and push new images to [gcr.io/k8s-staging-prometheus-adapter](https://gcr.io/k8s-staging-prometheus-adapter)
-1. A PR in [kubernetes/k8s.io](https://github.com/kubernetes/k8s.io/blob/main/k8s.gcr.io/images/k8s-staging-prometheus-adapter/images.yaml) is created to release images to `k8s.gcr.io`
-1. An OWNER publishes the GitHub release
-1. An announcement email is sent to `kubernetes-sig-instrumentation@googlegroups.com` with the subject `[ANNOUNCE] prometheus-adapter $VERSION is released`
-1. The release issue is closed

SECURITY.md

@@ -1,22 +0,0 @@
-# Security Policy
-
-## Security Announcements
-
-Join the [kubernetes-security-announce] group for security and vulnerability announcements.
-
-You can also subscribe to an RSS feed of the above using [this link][kubernetes-security-announce-rss].
-
-## Reporting a Vulnerability
-
-Instructions for reporting a vulnerability can be found on the
-[Kubernetes Security and Disclosure Information] page.
-
-## Supported Versions
-
-Information about supported Kubernetes versions can be found on the
-[Kubernetes version and version skew support policy] page on the Kubernetes website.
-
-[kubernetes-security-announce]: https://groups.google.com/forum/#!forum/kubernetes-security-announce
-[kubernetes-security-announce-rss]: https://groups.google.com/forum/feed/kubernetes-security-announce/msgs/rss_v2_0.xml?num=50
-[Kubernetes version and version skew support policy]: https://kubernetes.io/docs/setup/release/version-skew-policy/#supported-versions
-[Kubernetes Security and Disclosure Information]: https://kubernetes.io/docs/reference/issues-security/security/#report-a-vulnerability

VERSION

@@ -1 +0,0 @@
-0.12.0

cloudbuild.yaml

@@ -1,11 +0,0 @@
-# See https://cloud.google.com/cloud-build/docs/build-config                                            
-timeout: 3600s
-options:
-  substitution_option: ALLOW_LOOSE
-steps:
-  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20211118-2f2d816b90'
-    entrypoint: make
-    env:
-    - TAG=$_PULL_BASE_REF
-    args:
-    - push-all

cmd/adapter/adapter.go

@@ -19,38 +19,32 @@ package main
 import (
 	"crypto/tls"
 	"crypto/x509"
+	"flag"
 	"fmt"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"os"
-	"strings"
 	"time"
 
-	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/util/wait"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	openapinamer "k8s.io/apiserver/pkg/endpoints/openapi"
-	genericapiserver "k8s.io/apiserver/pkg/server"
-	"k8s.io/client-go/metadata"
-	"k8s.io/client-go/metadata/metadatainformer"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
 	"k8s.io/client-go/transport"
 	"k8s.io/component-base/logs"
-	"k8s.io/klog/v2"
+	"k8s.io/klog"
 
-	customexternalmetrics "sigs.k8s.io/custom-metrics-apiserver/pkg/apiserver"
+	basecmd "github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/cmd"
-	basecmd "sigs.k8s.io/custom-metrics-apiserver/pkg/cmd"
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
 	"sigs.k8s.io/metrics-server/pkg/api"
 
-	generatedopenapi "sigs.k8s.io/prometheus-adapter/pkg/api/generated/openapi"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	mprom "github.com/directxman12/k8s-prometheus-adapter/pkg/client/metrics"
-	mprom "sigs.k8s.io/prometheus-adapter/pkg/client/metrics"
+	adaptercfg "github.com/directxman12/k8s-prometheus-adapter/pkg/config"
-	adaptercfg "sigs.k8s.io/prometheus-adapter/pkg/config"
+	cmprov "github.com/directxman12/k8s-prometheus-adapter/pkg/custom-provider"
-	cmprov "sigs.k8s.io/prometheus-adapter/pkg/custom-provider"
+	extprov "github.com/directxman12/k8s-prometheus-adapter/pkg/external-provider"
-	extprov "sigs.k8s.io/prometheus-adapter/pkg/external-provider"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
+	resprov "github.com/directxman12/k8s-prometheus-adapter/pkg/resourceprovider"
-	resprov "sigs.k8s.io/prometheus-adapter/pkg/resourceprovider"
 )
 
 type PrometheusAdapter struct {
@@ -64,24 +58,15 @@ type PrometheusAdapter struct {
 	PrometheusAuthConf string
 	// PrometheusCAFile points to the file containing the ca-root for connecting with Prometheus
 	PrometheusCAFile string
-	// PrometheusClientTLSCertFile points to the file containing the client TLS cert for connecting with Prometheus
-	PrometheusClientTLSCertFile string
-	// PrometheusClientTLSKeyFile points to the file containing the client TLS key for connecting with Prometheus
-	PrometheusClientTLSKeyFile string
 	// PrometheusTokenFile points to the file that contains the bearer token when connecting with Prometheus
 	PrometheusTokenFile string
-	// PrometheusHeaders is a k=v list of headers to set on requests to PrometheusURL
-	PrometheusHeaders []string
-	// PrometheusVerb is a verb to set on requests to PrometheusURL
-	PrometheusVerb string
 	// AdapterConfigFile points to the file containing the metrics discovery configuration.
 	AdapterConfigFile string
 	// MetricsRelistInterval is the interval at which to relist the set of available metrics
 	MetricsRelistInterval time.Duration
 	// MetricsMaxAge is the period to query available metrics for
 	MetricsMaxAge time.Duration
-	// DisableHTTP2 indicates that http2 should not be enabled.
+
-	DisableHTTP2  bool
 	metricsConfig *adaptercfg.MetricsDiscoveryConfig
 }
 
@@ -91,14 +76,10 @@ func (cmd *PrometheusAdapter) makePromClient() (prom.Client, error) {
 		return nil, fmt.Errorf("invalid Prometheus URL %q: %v", baseURL, err)
 	}
 
-	if cmd.PrometheusVerb != http.MethodGet && cmd.PrometheusVerb != http.MethodPost {
-		return nil, fmt.Errorf("unsupported Prometheus HTTP verb %q; supported verbs: \"GET\" and \"POST\"", cmd.PrometheusVerb)
-	}
-
 	var httpClient *http.Client
 
 	if cmd.PrometheusCAFile != "" {
-		prometheusCAClient, err := makePrometheusCAClient(cmd.PrometheusCAFile, cmd.PrometheusClientTLSCertFile, cmd.PrometheusClientTLSKeyFile)
+		prometheusCAClient, err := makePrometheusCAClient(cmd.PrometheusCAFile)
 		if err != nil {
 			return nil, err
 		}
@@ -114,19 +95,16 @@ func (cmd *PrometheusAdapter) makePromClient() (prom.Client, error) {
 	}
 
 	if cmd.PrometheusTokenFile != "" {
-		data, err := os.ReadFile(cmd.PrometheusTokenFile)
+		data, err := ioutil.ReadFile(cmd.PrometheusTokenFile)
 		if err != nil {
 			return nil, fmt.Errorf("failed to read prometheus-token-file: %v", err)
 		}
-		wrappedTransport := http.DefaultTransport
+		httpClient.Transport = transport.NewBearerAuthRoundTripper(string(data), httpClient.Transport)
-		if httpClient.Transport != nil {
-			wrappedTransport = httpClient.Transport
-		}
-		httpClient.Transport = transport.NewBearerAuthRoundTripper(string(data), wrappedTransport)
 	}
-	genericPromClient := prom.NewGenericAPIClient(httpClient, baseURL, parseHeaderArgs(cmd.PrometheusHeaders))
+
+	genericPromClient := prom.NewGenericAPIClient(httpClient, baseURL)
 	instrumentedGenericPromClient := mprom.InstrumentGenericAPIClient(genericPromClient, baseURL.String())
-	return prom.NewClientForAPI(instrumentedGenericPromClient, cmd.PrometheusVerb), nil
+	return prom.NewClientForAPI(instrumentedGenericPromClient), nil
 }
 
 func (cmd *PrometheusAdapter) addFlags() {
@@ -138,28 +116,15 @@ func (cmd *PrometheusAdapter) addFlags() {
 		"kubeconfig file used to configure auth when connecting to Prometheus.")
 	cmd.Flags().StringVar(&cmd.PrometheusCAFile, "prometheus-ca-file", cmd.PrometheusCAFile,
 		"Optional CA file to use when connecting with Prometheus")
-	cmd.Flags().StringVar(&cmd.PrometheusClientTLSCertFile, "prometheus-client-tls-cert-file", cmd.PrometheusClientTLSCertFile,
-		"Optional client TLS cert file to use when connecting with Prometheus, auto-renewal is not supported")
-	cmd.Flags().StringVar(&cmd.PrometheusClientTLSKeyFile, "prometheus-client-tls-key-file", cmd.PrometheusClientTLSKeyFile,
-		"Optional client TLS key file to use when connecting with Prometheus, auto-renewal is not supported")
 	cmd.Flags().StringVar(&cmd.PrometheusTokenFile, "prometheus-token-file", cmd.PrometheusTokenFile,
 		"Optional file containing the bearer token to use when connecting with Prometheus")
-	cmd.Flags().StringArrayVar(&cmd.PrometheusHeaders, "prometheus-header", cmd.PrometheusHeaders,
-		"Optional header to set on requests to prometheus-url. Can be repeated")
-	cmd.Flags().StringVar(&cmd.PrometheusVerb, "prometheus-verb", cmd.PrometheusVerb,
-		"HTTP verb to set on requests to Prometheus. Possible values: \"GET\", \"POST\"")
 	cmd.Flags().StringVar(&cmd.AdapterConfigFile, "config", cmd.AdapterConfigFile,
 		"Configuration file containing details of how to transform between Prometheus metrics "+
 			"and custom metrics API resources")
-	cmd.Flags().DurationVar(&cmd.MetricsRelistInterval, "metrics-relist-interval", cmd.MetricsRelistInterval,
+	cmd.Flags().DurationVar(&cmd.MetricsRelistInterval, "metrics-relist-interval", cmd.MetricsRelistInterval, ""+
 		"interval at which to re-list the set of all available metrics from Prometheus")
-	cmd.Flags().DurationVar(&cmd.MetricsMaxAge, "metrics-max-age", cmd.MetricsMaxAge,
+	cmd.Flags().DurationVar(&cmd.MetricsMaxAge, "metrics-max-age", cmd.MetricsMaxAge, ""+
 		"period for which to query the set of available metrics from Prometheus")
-	cmd.Flags().BoolVar(&cmd.DisableHTTP2, "disable-http2", cmd.DisableHTTP2,
-		"Disable HTTP/2 support")
-
-	// Add logging flags
-	logs.AddFlags(cmd.Flags())
 }
 
 func (cmd *PrometheusAdapter) loadConfig() error {
@@ -227,13 +192,13 @@ func (cmd *PrometheusAdapter) makeExternalProvider(promClient prom.Client, stopC
 	}
 
 	// construct the provider and start it
-	emProvider, runner := extprov.NewExternalPrometheusProvider(promClient, namers, cmd.MetricsRelistInterval, cmd.MetricsMaxAge)
+	emProvider, runner := extprov.NewExternalPrometheusProvider(promClient, namers, cmd.MetricsRelistInterval)
 	runner.RunUntil(stopCh)
 
 	return emProvider, nil
 }
 
-func (cmd *PrometheusAdapter) addResourceMetricsAPI(promClient prom.Client, stopCh <-chan struct{}) error {
+func (cmd *PrometheusAdapter) addResourceMetricsAPI(promClient prom.Client) error {
 	if cmd.metricsConfig.ResourceRules == nil {
 		// bail if we don't have rules for setting things up
 		return nil
@@ -249,48 +214,19 @@ func (cmd *PrometheusAdapter) addResourceMetricsAPI(promClient prom.Client, stop
 		return fmt.Errorf("unable to construct resource metrics API provider: %v", err)
 	}
 
-	rest, err := cmd.ClientConfig()
+	informers, err := cmd.Informers()
 	if err != nil {
 		return err
 	}
 
-	client, err := metadata.NewForConfig(rest)
-	if err != nil {
-		return err
-	}
-
-	podInformerFactory := metadatainformer.NewFilteredSharedInformerFactory(client, 0, corev1.NamespaceAll, func(options *metav1.ListOptions) {
-		options.FieldSelector = "status.phase=Running"
-	})
-	podInformer := podInformerFactory.ForResource(corev1.SchemeGroupVersion.WithResource("pods"))
-
-	informer, err := cmd.Informers()
-	if err != nil {
-		return err
-	}
-
-	config, err := cmd.Config()
-	if err != nil {
-		return err
-	}
-	config.GenericConfig.EnableMetrics = false
-
 	server, err := cmd.Server()
 	if err != nil {
 		return err
 	}
 
-	metricsHandler, err := mprom.MetricsHandler()
+	if err := api.Install(provider, informers.Core().V1(), server.GenericAPIServer); err != nil {
-	if err != nil {
 		return err
 	}
-	server.GenericAPIServer.Handler.NonGoRestfulMux.HandleFunc("/metrics", metricsHandler)
-
-	if err := api.Install(provider, podInformer.Lister(), informer.Core().V1().Nodes().Lister(), server.GenericAPIServer, nil); err != nil {
-		return err
-	}
-
-	go podInformer.Informer().Run(stopCh)
 
 	return nil
 }
@@ -302,33 +238,16 @@ func main() {
 	// set up flags
 	cmd := &PrometheusAdapter{
 		PrometheusURL:         "https://localhost",
-		PrometheusVerb:        http.MethodGet,
 		MetricsRelistInterval: 10 * time.Minute,
+		MetricsMaxAge:         20 * time.Minute,
 	}
 	cmd.Name = "prometheus-metrics-adapter"
-
 	cmd.addFlags()
+	cmd.Flags().AddGoFlagSet(flag.CommandLine) // make sure we get the klog flags
 	if err := cmd.Flags().Parse(os.Args); err != nil {
 		klog.Fatalf("unable to parse flags: %v", err)
 	}
 
-	if cmd.OpenAPIConfig == nil {
-		cmd.OpenAPIConfig = genericapiserver.DefaultOpenAPIConfig(generatedopenapi.GetOpenAPIDefinitions, openapinamer.NewDefinitionNamer(api.Scheme, customexternalmetrics.Scheme))
-		cmd.OpenAPIConfig.Info.Title = "prometheus-metrics-adapter"
-		cmd.OpenAPIConfig.Info.Version = "1.0.0"
-	}
-
-	if cmd.OpenAPIV3Config == nil {
-		cmd.OpenAPIV3Config = genericapiserver.DefaultOpenAPIV3Config(generatedopenapi.GetOpenAPIDefinitions, openapinamer.NewDefinitionNamer(api.Scheme, customexternalmetrics.Scheme))
-		cmd.OpenAPIV3Config.Info.Title = "prometheus-metrics-adapter"
-		cmd.OpenAPIV3Config.Info.Version = "1.0.0"
-	}
-
-	// if --metrics-max-age is not set, make it equal to --metrics-relist-interval
-	if cmd.MetricsMaxAge == 0*time.Second {
-		cmd.MetricsMaxAge = cmd.MetricsRelistInterval
-	}
-
 	// make the prometheus client
 	promClient, err := cmd.makePromClient()
 	if err != nil {
@@ -340,11 +259,8 @@ func main() {
 		klog.Fatalf("unable to load metrics discovery config: %v", err)
 	}
 
-	// stop channel closed on SIGTERM and SIGINT
-	stopCh := genericapiserver.SetupSignalHandler()
-
 	// construct the provider
-	cmProvider, err := cmd.makeProvider(promClient, stopCh)
+	cmProvider, err := cmd.makeProvider(promClient, wait.NeverStop)
 	if err != nil {
 		klog.Fatalf("unable to construct custom metrics provider: %v", err)
 	}
@@ -355,7 +271,7 @@ func main() {
 	}
 
 	// construct the external provider
-	emProvider, err := cmd.makeExternalProvider(promClient, stopCh)
+	emProvider, err := cmd.makeExternalProvider(promClient, wait.NeverStop)
 	if err != nil {
 		klog.Fatalf("unable to construct external metrics provider: %v", err)
 	}
@@ -366,20 +282,12 @@ func main() {
 	}
 
 	// attach resource metrics support, if it's needed
-	if err := cmd.addResourceMetricsAPI(promClient, stopCh); err != nil {
+	if err := cmd.addResourceMetricsAPI(promClient); err != nil {
 		klog.Fatalf("unable to install resource metrics API: %v", err)
 	}
 
-	// disable HTTP/2 to mitigate CVE-2023-44487 until the Go standard library
-	// and golang.org/x/net are fully fixed.
-	server, err := cmd.Server()
-	if err != nil {
-		klog.Fatalf("unable to fetch server: %v", err)
-	}
-	server.GenericAPIServer.SecureServingInfo.DisableHTTP2 = cmd.DisableHTTP2
-
 	// run the server
-	if err := cmd.Run(stopCh); err != nil {
+	if err := cmd.Run(wait.NeverStop); err != nil {
 		klog.Fatalf("unable to run custom metrics adapter: %v", err)
 	}
 }
@@ -403,7 +311,7 @@ func makeKubeconfigHTTPClient(inClusterAuth bool, kubeConfigPath string) (*http.
 		loader := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, &clientcmd.ConfigOverrides{})
 		authConf, err = loader.ClientConfig()
 		if err != nil {
-			return nil, fmt.Errorf("unable to construct auth configuration from %q for connecting to Prometheus: %v", kubeConfigPath, err)
+			return nil, fmt.Errorf("unable to construct  auth configuration from %q for connecting to Prometheus: %v", kubeConfigPath, err)
 		}
 	} else {
 		var err error
@@ -419,8 +327,8 @@ func makeKubeconfigHTTPClient(inClusterAuth bool, kubeConfigPath string) (*http.
 	return &http.Client{Transport: tr}, nil
 }
 
-func makePrometheusCAClient(caFilePath string, tlsCertFilePath string, tlsKeyFilePath string) (*http.Client, error) {
+func makePrometheusCAClient(caFilename string) (*http.Client, error) {
-	data, err := os.ReadFile(caFilePath)
+	data, err := ioutil.ReadFile(caFilename)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read prometheus-ca-file: %v", err)
 	}
@@ -430,41 +338,11 @@ func makePrometheusCAClient(caFilePath string, tlsCertFilePath string, tlsKeyFil
 		return nil, fmt.Errorf("no certs found in prometheus-ca-file")
 	}
 
-	if (tlsCertFilePath != "") && (tlsKeyFilePath != "") {
-		tlsClientCerts, err := tls.LoadX509KeyPair(tlsCertFilePath, tlsKeyFilePath)
-		if err != nil {
-			return nil, fmt.Errorf("failed to read TLS key pair: %v", err)
-		}
-		return &http.Client{
-			Transport: &http.Transport{
-				TLSClientConfig: &tls.Config{
-					RootCAs:      pool,
-					Certificates: []tls.Certificate{tlsClientCerts},
-					MinVersion:   tls.VersionTLS12,
-				},
-			},
-		}, nil
-	}
-
 	return &http.Client{
 		Transport: &http.Transport{
 			TLSClientConfig: &tls.Config{
-				RootCAs:    pool,
+				RootCAs: pool,
-				MinVersion: tls.VersionTLS12,
 			},
 		},
 	}, nil
 }
-
-func parseHeaderArgs(args []string) http.Header {
-	headers := make(http.Header, len(args))
-	for _, h := range args {
-		parts := strings.SplitN(h, "=", 2)
-		value := ""
-		if len(parts) > 1 {
-			value = parts[1]
-		}
-		headers.Add(parts[0], value)
-	}
-	return headers
-}

cmd/adapter/adapter_test.go

@@ -1,211 +0,0 @@
-/*
-Copyright 2016 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package main
-
-import (
-	"net/http"
-	"os"
-	"path/filepath"
-	"reflect"
-	"testing"
-)
-
-const certsDir = "testdata"
-
-func TestMakeKubeconfigHTTPClient(t *testing.T) {
-	tests := []struct {
-		kubeconfigPath string
-		inClusterAuth  bool
-		success        bool
-	}{
-		{
-			kubeconfigPath: filepath.Join(certsDir, "kubeconfig"),
-			inClusterAuth:  false,
-			success:        true,
-		},
-		{
-			kubeconfigPath: filepath.Join(certsDir, "kubeconfig"),
-			inClusterAuth:  true,
-			success:        false,
-		},
-		{
-			kubeconfigPath: filepath.Join(certsDir, "kubeconfig-error"),
-			inClusterAuth:  false,
-			success:        false,
-		},
-		{
-			kubeconfigPath: "",
-			inClusterAuth:  false,
-			success:        true,
-		},
-	}
-
-	os.Setenv("KUBERNETES_SERVICE_HOST", "prometheus")
-	os.Setenv("KUBERNETES_SERVICE_PORT", "8080")
-
-	for _, test := range tests {
-		t.Logf("Running test for: inClusterAuth %v, kubeconfigPath %v", test.inClusterAuth, test.kubeconfigPath)
-		kubeconfigHTTPClient, err := makeKubeconfigHTTPClient(test.inClusterAuth, test.kubeconfigPath)
-		if test.success {
-			if err != nil {
-				t.Errorf("Error is %v, expected nil", err)
-				continue
-			}
-			if kubeconfigHTTPClient.Transport == nil {
-				if test.inClusterAuth || test.kubeconfigPath != "" {
-					t.Error("HTTP client Transport is nil, expected http.RoundTripper")
-				}
-			}
-		} else if err == nil {
-			t.Errorf("Error is nil, expected %v", err)
-		}
-	}
-}
-
-func TestMakePrometheusCAClient(t *testing.T) {
-	tests := []struct {
-		caFilePath      string
-		tlsCertFilePath string
-		tlsKeyFilePath  string
-		success         bool
-		tlsUsed         bool
-	}{
-		{
-			caFilePath:      filepath.Join(certsDir, "ca.pem"),
-			tlsCertFilePath: filepath.Join(certsDir, "tlscert.crt"),
-			tlsKeyFilePath:  filepath.Join(certsDir, "tlskey.key"),
-			success:         true,
-			tlsUsed:         true,
-		},
-		{
-			caFilePath:      filepath.Join(certsDir, "ca-error.pem"),
-			tlsCertFilePath: filepath.Join(certsDir, "tlscert.crt"),
-			tlsKeyFilePath:  filepath.Join(certsDir, "tlskey.key"),
-			success:         false,
-			tlsUsed:         true,
-		},
-		{
-			caFilePath:      filepath.Join(certsDir, "ca.pem"),
-			tlsCertFilePath: filepath.Join(certsDir, "tlscert-error.crt"),
-			tlsKeyFilePath:  filepath.Join(certsDir, "tlskey.key"),
-			success:         false,
-			tlsUsed:         true,
-		},
-		{
-			caFilePath:      filepath.Join(certsDir, "ca.pem"),
-			tlsCertFilePath: "",
-			tlsKeyFilePath:  "",
-			success:         true,
-			tlsUsed:         false,
-		},
-	}
-
-	for _, test := range tests {
-		t.Logf("Running test for: caFilePath %v, tlsCertFilePath %v, tlsKeyFilePath %v", test.caFilePath, test.tlsCertFilePath, test.tlsKeyFilePath)
-		prometheusCAClient, err := makePrometheusCAClient(test.caFilePath, test.tlsCertFilePath, test.tlsKeyFilePath)
-		if test.success {
-			if err != nil {
-				t.Errorf("Error is %v, expected nil", err)
-				continue
-			}
-			if prometheusCAClient.Transport.(*http.Transport).TLSClientConfig.RootCAs == nil {
-				t.Error("RootCAs is nil, expected *x509.CertPool")
-				continue
-			}
-			if test.tlsUsed {
-				if prometheusCAClient.Transport.(*http.Transport).TLSClientConfig.Certificates == nil {
-					t.Error("TLS certificates is nil, expected []tls.Certificate")
-					continue
-				}
-			} else {
-				if prometheusCAClient.Transport.(*http.Transport).TLSClientConfig.Certificates != nil {
-					t.Errorf("TLS certificates is %+v, expected nil", prometheusCAClient.Transport.(*http.Transport).TLSClientConfig.Certificates)
-				}
-			}
-		} else if err == nil {
-			t.Errorf("Error is nil, expected %v", err)
-		}
-	}
-}
-
-func TestParseHeaderArgs(t *testing.T) {
-	tests := []struct {
-		args    []string
-		headers http.Header
-	}{
-		{
-			headers: http.Header{},
-		},
-		{
-			args: []string{"foo=bar"},
-			headers: http.Header{
-				"Foo": []string{"bar"},
-			},
-		},
-		{
-			args: []string{"foo"},
-			headers: http.Header{
-				"Foo": []string{""},
-			},
-		},
-		{
-			args: []string{"foo=bar", "foo=baz", "bux=baz=23"},
-			headers: http.Header{
-				"Foo": []string{"bar", "baz"},
-				"Bux": []string{"baz=23"},
-			},
-		},
-	}
-
-	for _, test := range tests {
-		got := parseHeaderArgs(test.args)
-		if !reflect.DeepEqual(got, test.headers) {
-			t.Errorf("Expected %#v but got %#v", test.headers, got)
-		}
-	}
-}
-
-func TestFlags(t *testing.T) {
-	cmd := &PrometheusAdapter{
-		PrometheusURL: "https://localhost",
-	}
-	cmd.addFlags()
-
-	flags := cmd.FlagSet
-	if flags == nil {
-		t.Fatalf("FlagSet should not be nil")
-	}
-
-	expectedFlags := []struct {
-		flag         string
-		defaultValue string
-	}{
-		{flag: "v", defaultValue: "0"},                              // logging flag (klog)
-		{flag: "prometheus-url", defaultValue: "https://localhost"}, // default is set in cmd
-	}
-
-	for _, e := range expectedFlags {
-		flag := flags.Lookup(e.flag)
-		if flag == nil {
-			t.Errorf("Flag %q expected to be present, was absent", e.flag)
-			continue
-		}
-		if flag.DefValue != e.defaultValue {
-			t.Errorf("Expected default value %q for flag %q, got %q", e.defaultValue, e.flag, flag.DefValue)
-		}
-	}
-}

cmd/adapter/testdata/ca-error.pem

@@ -1,16 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDdjCCAl4CCQDdbOsYxSKoeDANBgkqhkiG9w0BAQsFADB9MQswCQYDVQQGEwJV
-UzENMAsGA1UEBwwEVGVzdDEaMBgGA1UECgwRUHJvbWV0aGV1c0FkYXB0ZXIxJDAi
-BgNVBAMMG2s4cy1wcm9tZXRoZXVzLWFkYXB0ZXIudGVzdDEdMBsGCSqGSIb3DQEJ
-ARYOdGVzdEB0ZXN0LnRlc3QwHhcNMjEwMjA5MTE0NzUwWhcNMjYwMjA4MTE0NzUw
-WjB9MQswCQYDVQQGEwJVUzENMAsGA1UEBwwEVGVzdDEaMBgGA1UECgwRUHJvbWV0
-aGV1c0FkYXB0ZXIxJDAiBgNVBAMMG2s4cy1wcm9tZXRoZXVzLWFkYXB0ZXIudGVz
-dDEdMBsGCSqGSIb3DQEJARYOdGVzdEB0ZXN0LnRlc3QwggEiMA0GCSqGSIb3DQEB
-AQUAA4IBDwAwggEKAoIBAQC24TDfTWLtYZPLDXqEjF7yn4K7oBOltX5Nngsk7LNd
-AQELBQADggEBAD/bbeAZuyvtuEwdJ+4wkhBsHYXQ4OPxff1f3t4buIQFtnilWTXE
-S60K3SEaQS8rOw8V9eHmzCsh3mPuVCoM7WsgKhp2mVhbGVZoBWBZ8kPQXqtsw+v4
-tqTuJXnFPiF4clXb6Wp96Rc7nxzRAfn/6uVbSWds4JwRToUVszVOxe+yu0I84vuB
-SHrRa077b1V+UT8otm+C5tC3jBZ0/IPRNWoT/rVcSoVLouX0fkbtxNF7c9v+PYg6
-849A9T8cGKWKpKPGNEwBL9HYwtK6W0tTJr8A8pnAJ/UlniHA6u7SMHN+NoqBfi6M
-bqq9lQ4QhjFrN2B1z9r3ak+EzQX1711TQ8w=
------END CERTIFICATE-----

cmd/adapter/testdata/ca.pem

@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDLjCCAhYCCQDlnNCOw7JHFDANBgkqhkiG9w0BAQsFADBYMQswCQYDVQQGEwJV
-UzENMAsGA1UECgwEVGVzdDEbMBkGA1UEAwwScHJvbWV0aGV1cy1hZGFwdGVyMR0w
-GwYJKoZIhvcNAQkBFg50ZXN0QHRlc3QudGVzdDAgFw0yMTAyMjIyMDMxNTBaGA80
-NzU5MDEyMDIwMzE1MFowWDELMAkGA1UEBhMCVVMxDTALBgNVBAoMBFRlc3QxGzAZ
-BgNVBAMMEnByb21ldGhldXMtYWRhcHRlcjEdMBsGCSqGSIb3DQEJARYOdGVzdEB0
-ZXN0LnRlc3QwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvn9HQlfhw
-qDH77+eEFU+N+ztqCtat54neVez+sFa4dfYxuvVYK+nc+oh4E7SS4u+17eKV+QFb
-ZhRhrOTNI+fmuO+xDPKyU1MuYUDfwasRfMDcUpssea2fO/SrsxHmX9oOam0kgefJ
-8aSwI9TYw4N4kIpG+EGatogDlR2KXhrqsRfx5PUB4npFaCrdoglyvvAQig83Iq5L
-+bCknSe6NUMiqtL9CcuLzzRKB3DMOrvbB0tJdb4uv/gS26sx/Hp/1ri73/tv4I9z
-GLLoUUoff7vfvxrhiGR9i+qBOda7THbbmYBD54y+SR0dBa2uuDDX0JbgNNfXtjiG
-52hvAnc1/wv7AgMBAAEwDQYJKoZIhvcNAQELBQADggEBACCysIzT9NKaniEvXtnx
-Yx/jRxpiEEUGl8kg83a95X4f13jdPpUSwcn3/iK5SAE/7ntGVM+ajtlXrHGxwjB7
-ER0w4WC6Ozypzoh/yI/VXs+DRJTJu8CBJOBRQEpzkK4r64HU8iN2c9lPp1+6b3Vy
-jfbf3yfnRUbJztSjOFDUeA2t3FThVddhqif/oxj65s5R8p9HEurcwhA3Q6lE53yx
-jgee8qV9HXAqa4V0qQQJ0tjcpajhQahDTtThRr+Z2H4TzQuwHa3dM7IIF6EPWsCo
-DtbUXEPL7zT3EBH7THOdvNsFlD/SFmT2RwiQ5606bRAHwAzzxjxjxFTMl7r4tX5W
-Ldc=
------END CERTIFICATE-----

cmd/adapter/testdata/kubeconfig

@@ -1,17 +0,0 @@
-apiVersion: v1
-kind: Config
-clusters:
-- name: test
-  cluster:
-    certificate-authority-data: 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
-    server: test.test
-contexts:
-- name: test
-  context:
-    cluster: test
-    user: test-user
-current-context: test
-users:
-- name: test-user
-  user:
-    token: abcde12345

cmd/adapter/testdata/kubeconfig-error

@@ -1,18 +0,0 @@
-apiVersion: v1
-kind: Config
-clusters:
-- name: test
-  cluster:
-    certificate-authority-data: abcde12345
-    server: test.test
-contexts:
-- name: test
-  context:
-    cluster: test
-    user: test-user
-current-context: test
-users:
-- name: test-user
-  user:
-    token: abcde12345
-

cmd/adapter/testdata/tlscert-error.crt

@@ -1,24 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIFdjCCA14CCQC+svUhDVv51DANBgkqhkiG9w0BAQsFADB9MQswCQYDVQQGEwJV
-UzENMAsGA1UEBwwEVGVzdDEaMBgGA1UECgwRUHJvbWV0aGV1c0FkYXB0ZXIxJDAi
-BgNVBAMMG2s4cy1wcm9tZXRoZXVzLWFkYXB0ZXIudGVzdDEdMBsGCSqGSIb3DQEJ
-ARYOdGVzdEB0ZXN0LnRlc3QwHhcNMjEwMjA5MTE0NDMyWhcNMjIwMjA5MTE0NDMy
-WjB9MQswCQYDVQQGEwJVUzENMAsGA1UEBwwEVGVzdDEaMBgGA1UECgwRUHJvbWV0
-aGV1c0FkYXB0ZXIxJDAiBgNVBAMMG2s4cy1wcm9tZXRoZXVzLWFkYXB0ZXIudGVz
-dDEdMBsGCSqGSIb3DQEJARYOdGVzdEB0ZXN0LnRlc3QwggIiMA0GCSqGSIb3DQEB
-AQUAA4ICDwAwggIKAoICAQDtLqKuIJqRETLOUSMDBtUDmIBaD2pG9Qv+cOBhQbVS
-apZRWk8uKZKxqBOxgQ3UxY1szeVkx1Dphe3RN6ndmofiRc23ns1qncbDllgbtflk
-GFvLKGcVBa6Z/lZ6FCZDWn6K6mJb0a7jtkOMG6+J/5eJHfZ23u/GYL1RKxH+qPPc
-AwIDAQABMA0GCSqGSIb3DQEBCwUAA4ICAQC0oE4/Yel5GHeuKJ5+U9KEBsLCrBjj
-jUW8or7SIZ1Gl4J2ak3p3WabhZjqOe10rsIXCNTaC2rEMvkNiP5Om0aeE6bx14jV
-e9FIfJ7ytAL/PISaZXINgml05m4Su3bUaxCQpajBgqneNp4w57jfeFhcPt35j0H4
-bxGk/hnIY1MmRULSOFBstmxNZSDNsGlTcZoN3+0KtuqLg6vTNuuJIyx1zd9/QT8t
-RJ4fgrffJcPJscvq6hEdWmtcJhaDLWOEblsbFfN0J+zK07hHhqRavQrnwaBZgFWa
-OIqAo6NfZONhCFy9mWFxLvQky1NXr60y220+N1GkEiLRQES7+p1pcKgn0v+f2EfW
-uN6+LCppWX7FqtkB3OhZkHM6nbE/9GP5T76Kj30Fed/nHkTJ3QORRMQUTs4J6LNk
-BD1i14MZMCn3UBZh8wX+d63xJHtfMvfac7L655GwLEnWW8JM8h8DDfRYM7JuEURG
-pSbvoaygyvddT0FKRLcFGhfI7aBSWGcJH5rHdEcUQ+mnloD1RioQqTC+kxUSddJI
-QNjgYivl9kwW9cJV1jzmKd8GQfg+j1X+jR9icNT5cacvclwnL0Mim0w/ZLfWQYmJ
-q2ud+GS9+5RtPzWwHR60+Qs3dr8oQGh5wO12qUJ8d5MI+4YGWRjKRyYdio6g1Bhi
-9WInD4va9cC7fw==
------END CERTIFICATE-----

cmd/adapter/testdata/tlscert.crt

@@ -1,30 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIFLjCCAxYCCQDMlabDYYlDKzANBgkqhkiG9w0BAQsFADBYMQswCQYDVQQGEwJV
-UzENMAsGA1UECgwEVGVzdDEbMBkGA1UEAwwScHJvbWV0aGV1cy1hZGFwdGVyMR0w
-GwYJKoZIhvcNAQkBFg50ZXN0QHRlc3QudGVzdDAgFw0yMTAyMjIyMDMwMTNaGA80
-NzU5MDEyMDIwMzAxM1owWDELMAkGA1UEBhMCVVMxDTALBgNVBAoMBFRlc3QxGzAZ
-BgNVBAMMEnByb21ldGhldXMtYWRhcHRlcjEdMBsGCSqGSIb3DQEJARYOdGVzdEB0
-ZXN0LnRlc3QwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDIJOO8apS3
-84bssvnTVHp1VAiPg1tX+E6wPjayVPx+S4LgMKA4QM2kNKoPLQtvGV+lyqfhYp0H
-cdGzCPVQ6aBlbHuOhInusJaXjgOlNTalThgigzky0t1jFxqaNjFtXqv6ME1Zcb9H
-VrGMreEfNj8/Ijp7cfsBe7Jv2rBc06aidx9j66+oPTC98XcNnURUGO95UF8SjTQt
-oi10m17uA7z/JUUSBvDJAg5Z62myZPU2stz38cuthROyEyXRBWimHh7bD17rwqhc
-WRCfkFORWvwz9GMV5KfFCfWm2D2pm1f3ZWm5/FQbQrlxgxUagwDMoma+F6hQp84a
-/sYPqqkWDRUK0NGZzWwxjfra8r8H2xFab+5ZFVr9+FhMgy6eelZ1JJc860s35Qpk
-ZrSRH8RNMqLRG1cnDwHn9Md6joCZgLJhEW9L5xjpCVWkLXK59yA9ry5Jau9/2zDs
-wlRzYI4TNazbVa84KliEjt3nZ6DgQh3PRtxHDrqJIQSSYu1MtUmPArLtEDDP/BqD
-fGWCayc/SdxSWW9qU/aOq+D4KMKQXV44qc22f6rd/LKt/fcvDpbfcexXbeeNABQg
-x1rAnhA8L/rYc4WTTbTrb8jwhaUoqJve6XOsHPVbk/L4CS9ReP1UwvhMM1C+Ast6
-rr/a2bZkoMK+jmkA2QTwUsjvt/8G4dtVOwIDAQABMA0GCSqGSIb3DQEBCwUAA4IC
-AQAvrWslCR21l8XRGI+l4z6bpZ7+089KQRemYcHWOKZ/nDTYcydDWQMdMtDZS43d
-B2Wuu4UfOnK27YwuP4Ojf2hAzeaDBgv7xOcKRZ1K+zOCm+VqbtWV49c/Ow0Rc5KU
-N7rApohdpXeJBp5TB1qQJsKcBv3gveLAivCFTeD0LiLMVdxjRRl9ZbMXtD3PABDC
-KKFtE/n2MV/0wroMD9hHs9LckcNjHSrIFaQEy9cESn8q3kngFf3wvc2oM77yCOZ1
-5y0AN+9ZXyMHHlMjye7GuW0Mpiwo1O4tW2brC0boqSmvSFNW9KRogKvu6Oij9Pm6
-jJpuUsM0KOnID8m9jJ+Xb+DGC9cgLGHRJc+zw74X2KMQnH4/pZDNbIGG7d8xEoPn
-RS/EbCoALmUbI2kqflVN88kN4ZUchsoHly5gIdidfo9yjeOihTF0xEEou/tzGW+K
-AYxwy9uIYhz4lmH894H5nqJWPY/aLxD4M9nFW0yxczCQ8tpjwVYmP3/dCKp1IUXy
-0h9TjyBRPv9O3JrTLTYBPLisLNqiU+YOZM6wgqmZTPtTCxKMmNlhGWKa8prAhMdb
-GRxwkO6ylyL/j3J3HgcDHEC22/685L21HVFv8z/DMuj/eba4yyn1FBVXOU9hgLWS
-LVLoVFFp7RaGSIECcqTyXldoZZpZrA89XDVuqSvHDiCOrg==
------END CERTIFICATE-----

cmd/adapter/testdata/tlskey.key

@@ -1,52 +0,0 @@
------BEGIN PRIVATE KEY-----
-MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQDIJOO8apS384bs
-svnTVHp1VAiPg1tX+E6wPjayVPx+S4LgMKA4QM2kNKoPLQtvGV+lyqfhYp0HcdGz
-CPVQ6aBlbHuOhInusJaXjgOlNTalThgigzky0t1jFxqaNjFtXqv6ME1Zcb9HVrGM
-reEfNj8/Ijp7cfsBe7Jv2rBc06aidx9j66+oPTC98XcNnURUGO95UF8SjTQtoi10
-m17uA7z/JUUSBvDJAg5Z62myZPU2stz38cuthROyEyXRBWimHh7bD17rwqhcWRCf
-kFORWvwz9GMV5KfFCfWm2D2pm1f3ZWm5/FQbQrlxgxUagwDMoma+F6hQp84a/sYP
-qqkWDRUK0NGZzWwxjfra8r8H2xFab+5ZFVr9+FhMgy6eelZ1JJc860s35QpkZrSR
-H8RNMqLRG1cnDwHn9Md6joCZgLJhEW9L5xjpCVWkLXK59yA9ry5Jau9/2zDswlRz
-YI4TNazbVa84KliEjt3nZ6DgQh3PRtxHDrqJIQSSYu1MtUmPArLtEDDP/BqDfGWC
-ayc/SdxSWW9qU/aOq+D4KMKQXV44qc22f6rd/LKt/fcvDpbfcexXbeeNABQgx1rA
-nhA8L/rYc4WTTbTrb8jwhaUoqJve6XOsHPVbk/L4CS9ReP1UwvhMM1C+Ast6rr/a
-2bZkoMK+jmkA2QTwUsjvt/8G4dtVOwIDAQABAoICAQCFd9RG+exjH4uCnXfsbhGb
-3IY47igj6frPnS1sjzAyKLkGOGcgHFcGgfhGVouhcxJNxW9e5hxBsq1c70RoyOOl
-v0pGKCyzeB90wce8jFf8tK9zlH64XdY1FlsvK6Sagt+84Ck01J3yPOX6IppV7h8P
-Qwws9j2lJ5A+919VB++/uCC+yZVCZEv03um9snq2ekp4ZBiCjpeVNumJMXOE1glb
-PMdq1iYMZcqcPFkoFhtQdsbUsfJZrL0Nq6c0VJ8M6Fk7TGzIW+9aZiqnvd98t2go
-XXkWSH148MNYmCvGx0lKOd7foF2WMFDqWbfhDiuiS0qoya3822qepff+ypgnlGHK
-vr+9pLsWT7TG8pBfbXj47a7TwYAXkRMi+78vFQwoaeiKdehJM1YXZg9vBVS8BV3r
-+0wYNE4WpdxUvX3aAnJO6ntRU6KCz3/D1+fxUT/w1rKX2Z1uTH5x2UxB6UUGDSF9
-HiJfDp6RRtXHbQMR6uowM6UYBn0dl9Aso21oc2K4Gpx5QlsZaPi9M6BBMbPUhFcx
-QH+w7fLmccwneJVGxjHkYOcLVLF7nuH5C2DsffrMubrgwuhSw2b8zy7ZpZ0eJ83D
-CjJN9EgqwbmH0Or5N91YyVdR0Zm4EtODAo615O1kEMCKasKjpolOx/t9cgtbdkiq
-pbLruOS+8jEG1erA7nYkQQKCAQEA4yba38hSkfIMUzfrlgF7AkXHbU4iINgKpHti
-A9QrvEL9W4VHRiA5UTezzblyfMck9w/Hhx74pQjjGLj76L+8ZssCFI8ingNo3ItL
-/AX3MN68NT4heiy8EvKRwRNWV05WEehZg9tTUKexIDRcDSr/9E+qG/cW5KOIQpYl
-RIsKW2RUNFd3TVCQVUIzwe/0n6LuO2b7Btow+nfJ7U3mWQmHGYu7+SYjVlvIoQ68
-jFGviGRineu/J7EiPND7qQzj78AtnXkULf+mjK2JdapRcn2EBNL34QepVCyjfXZf
-QWm/ykI9nVOKRy1F38OhRHKrBICfWhN2Bgyvw3PPhGcb8EdknwKCAQEA4Y/2bpiz
-S0H8LPUUsOLZWCadpp8yzvTerB/vuigkQiHM8w4QUwEpL2iXSF36MD8yV/c4ilVN
-8m1p5prp1YtasTxsOWv7FDEs4oZfum1w3QsAvlrFRhctsACsZ1i4i3mvxQWJ955q
-zZxs5vhO5CL24rVoQYGVQj/uCSHlyK7ko9AA8XkejTlZMJ5h0Mip+oWNxz3M/VTa
-sJlYkQrbP0cWxCjKJLEmtVlVSCMeHoILGZzLcol6RVPbaAb57i27SRwY9YIFt1A+
-OMpHFs4fgDa4A1IlobBwhhd1dAw3CL5QJN+ylDnBYsm1bwBRHx/AKUjpRv+7ZXQb
-H9ngSivFHrXN5QKCAQBAqzUw9LUdO83qe0ck47MDiJ4oLlBlDVyqSz4yXNs+s8ux
-nJYYDuCCkNstvJgtkfyiIenqPBUJ1yfgR/nf34ZhtXYYKE/wsIPQFhBB5ejkDuWC
-OvgI8mdw9YItd7XjEThLzNx/P5fOpI823fE/BnjsMyn44DWyTiRi4KAnjXYbYsre
-Q/CBIGiW/UwC8K+yKw6r9ruMzd2X0Ta5yq3Dt4Sw7ylK22LAGU1bHPjs8eyJZhr1
-XsKDKFjY+55KGJNkFFBoPqpSFjByaI1z5FNfxwAo528Or8GzZyn8dBDWbKbfjFBC
-VCBP90GnXOiytfqeQ4gaeuPlAQOhH3168mfv1kN9AoIBABOZzgFYVaRBjKdfeLfS
-Tq7BVEvJY8HmN39fmxZjLJtukn/AhhygajLLdPH98KLGqxpHymsC9K4PYfd/GLjM
-zkm+hW0L/BqKF2tr39+0aO1camkgPCpWE0tLE7A7XnYIUgTd8VpKMt/BKxl7FGfw
-veF/gBrJJu5F3ep/PpeM0yOFDL/vFX+SLzTxXnClL1gsyOA6d5jACez0tmSMO/co
-t0q+fKpploKFy8pj+tcN1+cW3/sJBU4G9nb4vDk9UhwNTAHxlYuTdoS61yidKtGa
-b60iM1D0oyKT4Un/Ubz5xL8fjUYiKrLp8lE+Bs6clLdBtbvMtz0etMi0xy/K0+tS
-Qx0CggEBALfe2TUfAt9aMqpcidaFwgNFTr61wgOeoLWLt559OeRIeZWKAEB81bnz
-EJLxDF51Y2tLc/pEXrc0zJzzrFIfk/drYe0uD5RnJjRxE3+spwin6D32ZOZW3KSX
-1zReW1On80o/LJU6nyDJrNJvay2eL9PyWi47nBdO7MRZi53im72BmmwxaAKXf40l
-StykjloyFdI+eyGyQUqcs4nFHd3WWmV+lLIDhGDlF5EBUgueCJz1xO54oPj1PKGl
-vDs7JXdJiS3HDf20GREGwvL1y1kewX+KqdO7aBZhLN3Rx/fZnS/UFC3xCtbikuG4
-LeU1NmvuCRmWmrgEkqiKs3jgjbEPVQI=
------END PRIVATE KEY-----

cmd/config-gen/main.go

@@ -8,7 +8,7 @@ import (
 	"github.com/spf13/cobra"
 	yaml "gopkg.in/yaml.v2"
 
-	"sigs.k8s.io/prometheus-adapter/cmd/config-gen/utils"
+	"github.com/directxman12/k8s-prometheus-adapter/cmd/config-gen/utils"
 )
 
 func main() {

cmd/config-gen/utils/default.go

@@ -4,66 +4,65 @@ import (
 	"fmt"
 	"time"
 
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
+	. "github.com/directxman12/k8s-prometheus-adapter/pkg/config"
 	pmodel "github.com/prometheus/common/model"
-
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/config"
 )
 
 // DefaultConfig returns a configuration equivalent to the former
 // pre-advanced-config settings.  This means that "normal" series labels
 // will be of the form `<prefix><<.Resource>>`, cadvisor series will be
-// of the form `container_`, and have the label `pod`.  Any series ending
+// of the form `container_`, and have the label `pod_name`.  Any series ending
 // in total will be treated as a rate metric.
-func DefaultConfig(rateInterval time.Duration, labelPrefix string) *config.MetricsDiscoveryConfig {
+func DefaultConfig(rateInterval time.Duration, labelPrefix string) *MetricsDiscoveryConfig {
-	return &config.MetricsDiscoveryConfig{
+	return &MetricsDiscoveryConfig{
-		Rules: []config.DiscoveryRule{
+		Rules: []DiscoveryRule{
 			// container seconds rate metrics
 			{
-				SeriesQuery: string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod", ""))),
+				SeriesQuery: string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))),
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
-					Overrides: map[string]config.GroupResource{
+					Overrides: map[string]GroupResource{
 						"namespace": {Resource: "namespace"},
-						"pod":       {Resource: "pod"},
+						"pod_name":  {Resource: "pod"},
 					},
 				},
-				Name:         config.NameMapping{Matches: "^container_(.*)_seconds_total$"},
+				Name:         NameMapping{Matches: "^container_(.*)_seconds_total$"},
-				MetricsQuery: fmt.Sprintf(`sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[%s])) by (<<.GroupBy>>)`, pmodel.Duration(rateInterval).String()),
+				MetricsQuery: fmt.Sprintf(`sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[%s])) by (<<.GroupBy>>)`, pmodel.Duration(rateInterval).String()),
 			},
 
 			// container rate metrics
 			{
-				SeriesQuery:   string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod", ""))),
+				SeriesQuery:   string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))),
-				SeriesFilters: []config.RegexFilter{{IsNot: "^container_.*_seconds_total$"}},
+				SeriesFilters: []RegexFilter{{IsNot: "^container_.*_seconds_total$"}},
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
-					Overrides: map[string]config.GroupResource{
+					Overrides: map[string]GroupResource{
 						"namespace": {Resource: "namespace"},
-						"pod":       {Resource: "pod"},
+						"pod_name":  {Resource: "pod"},
 					},
 				},
-				Name:         config.NameMapping{Matches: "^container_(.*)_total$"},
+				Name:         NameMapping{Matches: "^container_(.*)_total$"},
-				MetricsQuery: fmt.Sprintf(`sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[%s])) by (<<.GroupBy>>)`, pmodel.Duration(rateInterval).String()),
+				MetricsQuery: fmt.Sprintf(`sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[%s])) by (<<.GroupBy>>)`, pmodel.Duration(rateInterval).String()),
 			},
 
 			// container non-cumulative metrics
 			{
-				SeriesQuery:   string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod", ""))),
+				SeriesQuery:   string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))),
-				SeriesFilters: []config.RegexFilter{{IsNot: "^container_.*_total$"}},
+				SeriesFilters: []RegexFilter{{IsNot: "^container_.*_total$"}},
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
-					Overrides: map[string]config.GroupResource{
+					Overrides: map[string]GroupResource{
 						"namespace": {Resource: "namespace"},
-						"pod":       {Resource: "pod"},
+						"pod_name":  {Resource: "pod"},
 					},
 				},
-				Name:         config.NameMapping{Matches: "^container_(.*)$"},
+				Name:         NameMapping{Matches: "^container_(.*)$"},
-				MetricsQuery: `sum(<<.Series>>{<<.LabelMatchers>>,container!="POD"}) by (<<.GroupBy>>)`,
+				MetricsQuery: `sum(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}) by (<<.GroupBy>>)`,
 			},
 
 			// normal non-cumulative metrics
 			{
 				SeriesQuery:   string(prom.MatchSeries("", prom.LabelNeq(fmt.Sprintf("%snamespace", labelPrefix), ""), prom.NameNotMatches("^container_.*"))),
-				SeriesFilters: []config.RegexFilter{{IsNot: ".*_total$"}},
+				SeriesFilters: []RegexFilter{{IsNot: ".*_total$"}},
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
 					Template: fmt.Sprintf("%s<<.Resource>>", labelPrefix),
 				},
 				MetricsQuery: "sum(<<.Series>>{<<.LabelMatchers>>}) by (<<.GroupBy>>)",
@@ -72,9 +71,9 @@ func DefaultConfig(rateInterval time.Duration, labelPrefix string) *config.Metri
 			// normal rate metrics
 			{
 				SeriesQuery:   string(prom.MatchSeries("", prom.LabelNeq(fmt.Sprintf("%snamespace", labelPrefix), ""), prom.NameNotMatches("^container_.*"))),
-				SeriesFilters: []config.RegexFilter{{IsNot: ".*_seconds_total"}},
+				SeriesFilters: []RegexFilter{{IsNot: ".*_seconds_total"}},
-				Name:          config.NameMapping{Matches: "^(.*)_total$"},
+				Name:          NameMapping{Matches: "^(.*)_total$"},
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
 					Template: fmt.Sprintf("%s<<.Resource>>", labelPrefix),
 				},
 				MetricsQuery: fmt.Sprintf("sum(rate(<<.Series>>{<<.LabelMatchers>>}[%s])) by (<<.GroupBy>>)", pmodel.Duration(rateInterval).String()),
@@ -83,38 +82,38 @@ func DefaultConfig(rateInterval time.Duration, labelPrefix string) *config.Metri
 			// seconds rate metrics
 			{
 				SeriesQuery: string(prom.MatchSeries("", prom.LabelNeq(fmt.Sprintf("%snamespace", labelPrefix), ""), prom.NameNotMatches("^container_.*"))),
-				Name:        config.NameMapping{Matches: "^(.*)_seconds_total$"},
+				Name:        NameMapping{Matches: "^(.*)_seconds_total$"},
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
 					Template: fmt.Sprintf("%s<<.Resource>>", labelPrefix),
 				},
 				MetricsQuery: fmt.Sprintf("sum(rate(<<.Series>>{<<.LabelMatchers>>}[%s])) by (<<.GroupBy>>)", pmodel.Duration(rateInterval).String()),
 			},
 		},
 
-		ResourceRules: &config.ResourceRules{
+		ResourceRules: &ResourceRules{
-			CPU: config.ResourceRule{
+			CPU: ResourceRule{
 				ContainerQuery: fmt.Sprintf("sum(rate(container_cpu_usage_seconds_total{<<.LabelMatchers>>}[%s])) by (<<.GroupBy>>)", pmodel.Duration(rateInterval).String()),
 				NodeQuery:      fmt.Sprintf("sum(rate(container_cpu_usage_seconds_total{<<.LabelMatchers>>, id='/'}[%s])) by (<<.GroupBy>>)", pmodel.Duration(rateInterval).String()),
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
-					Overrides: map[string]config.GroupResource{
+					Overrides: map[string]GroupResource{
 						"namespace": {Resource: "namespace"},
-						"pod":       {Resource: "pod"},
+						"pod_name":  {Resource: "pod"},
 						"instance":  {Resource: "node"},
 					},
 				},
-				ContainerLabel: fmt.Sprintf("%scontainer", labelPrefix),
+				ContainerLabel: fmt.Sprintf("%scontainer_name", labelPrefix),
 			},
-			Memory: config.ResourceRule{
+			Memory: ResourceRule{
 				ContainerQuery: "sum(container_memory_working_set_bytes{<<.LabelMatchers>>}) by (<<.GroupBy>>)",
 				NodeQuery:      "sum(container_memory_working_set_bytes{<<.LabelMatchers>>,id='/'}) by (<<.GroupBy>>)",
-				Resources: config.ResourceMapping{
+				Resources: ResourceMapping{
-					Overrides: map[string]config.GroupResource{
+					Overrides: map[string]GroupResource{
 						"namespace": {Resource: "namespace"},
-						"pod":       {Resource: "pod"},
+						"pod_name":  {Resource: "pod"},
 						"instance":  {Resource: "node"},
 					},
 				},
-				ContainerLabel: fmt.Sprintf("%scontainer", labelPrefix),
+				ContainerLabel: fmt.Sprintf("%scontainer_name", labelPrefix),
 			},
 			Window: pmodel.Duration(rateInterval),
 		},

deploy/Dockerfile

@@ -0,0 +1,4 @@
+FROM BASEIMAGE
+COPY adapter /
+USER 1001:1001
+ENTRYPOINT ["/adapter"]

deploy/README.md

@@ -1,11 +1,20 @@
 Example Deployment
 ==================
 
-1. Make sure you've built the included Dockerfile with `TAG=latest make container`. The image should be tagged as `registry.k8s.io/prometheus-adapter/staging-prometheus-adapter:latest`.
+1. Make sure you've built the included Dockerfile with `make docker-build`. The image should be tagged as `directxman12/k8s-prometheus-adapter:latest`.
 
-2. `kubectl create namespace monitoring` to ensure that the namespace that we're installing
+2. Create a secret called `cm-adapter-serving-certs` with two values:
+   `serving.crt` and `serving.key`. These are the serving certificates used
+   by the adapter for serving HTTPS traffic.  For more information on how to
+   generate these certificates, see the [auth concepts
+   documentation](https://github.com/kubernetes-incubator/apiserver-builder/blob/master/docs/concepts/auth.md)
+   in the apiserver-builder repository.
+   The kube-prometheus project published two scripts [gencerts.sh](https://github.com/coreos/prometheus-operator/blob/master/contrib/kube-prometheus/experimental/custom-metrics-api/gencerts.sh)
+   and [deploy.sh](https://github.com/coreos/prometheus-operator/blob/master/contrib/kube-prometheus/experimental/custom-metrics-api/deploy.sh) to create the `cm-adapter-serving-certs` secret.
+
+3. `kubectl create namespace custom-metrics` to ensure that the namespace that we're installing
    the custom metrics adapter in exists.
 
-3. `kubectl create -f manifests/`, modifying the Deployment as necessary to
+4. `kubectl create -f manifests/`, modifying the Deployment as necessary to
    point to your Prometheus server, and the ConfigMap to contain your desired
    metrics discovery configuration.

deploy/manifests/api-service.yaml

@@ -1,17 +0,0 @@
-apiVersion: apiregistration.k8s.io/v1
-kind: APIService
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: v1beta1.metrics.k8s.io
-spec:
-  group: metrics.k8s.io
-  groupPriorityMinimum: 100
-  insecureSkipTLSVerify: true
-  service:
-    name: prometheus-adapter
-    namespace: monitoring
-  version: v1beta1
-  versionPriority: 100

deploy/manifests/cluster-role-aggregated-metrics-reader.yaml

@@ -1,22 +0,0 @@
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-    rbac.authorization.k8s.io/aggregate-to-admin: "true"
-    rbac.authorization.k8s.io/aggregate-to-edit: "true"
-    rbac.authorization.k8s.io/aggregate-to-view: "true"
-  name: system:aggregated-metrics-reader
-  namespace: monitoring
-rules:
-- apiGroups:
-  - metrics.k8s.io
-  resources:
-  - pods
-  - nodes
-  verbs:
-  - get
-  - list
-  - watch

deploy/manifests/cluster-role-binding-delegator.yaml

@@ -1,17 +0,0 @@
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: resource-metrics:system:auth-delegator
-  namespace: monitoring
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: system:auth-delegator
-subjects:
-- kind: ServiceAccount
-  name: prometheus-adapter
-  namespace: monitoring

deploy/manifests/cluster-role-binding.yaml

@@ -1,17 +0,0 @@
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-  namespace: monitoring
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: prometheus-adapter
-subjects:
-- kind: ServiceAccount
-  name: prometheus-adapter
-  namespace: monitoring

deploy/manifests/cluster-role-metrics-server-resources.yaml

@@ -1,15 +0,0 @@
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: resource-metrics-server-resources
-rules:
-- apiGroups:
-  - metrics.k8s.io
-  resources:
-  - '*'
-  verbs:
-  - '*'

deploy/manifests/cluster-role.yaml

@@ -1,20 +0,0 @@
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-rules:
-- apiGroups:
-  - ""
-  resources:
-  - nodes
-  - namespaces
-  - pods
-  - services
-  verbs:
-  - get
-  - list
-  - watch

deploy/manifests/config-map.yaml

@@ -1,53 +0,0 @@
-apiVersion: v1
-data:
-  config.yaml: |-
-    "resourceRules":
-      "cpu":
-        "containerLabel": "container"
-        "containerQuery": |
-          sum by (<<.GroupBy>>) (
-            irate (
-                container_cpu_usage_seconds_total{<<.LabelMatchers>>,container!="",pod!=""}[4m]
-            )
-          )
-        "nodeQuery": |
-          sum by (<<.GroupBy>>) (
-            irate(
-                node_cpu_usage_seconds_total{<<.LabelMatchers>>}[4m]
-            )
-          )
-        "resources":
-          "overrides":
-            "namespace":
-              "resource": "namespace"
-            "node":
-              "resource": "node"
-            "pod":
-              "resource": "pod"
-      "memory":
-        "containerLabel": "container"
-        "containerQuery": |
-          sum by (<<.GroupBy>>) (
-            container_memory_working_set_bytes{<<.LabelMatchers>>,container!="",pod!=""}
-          )
-        "nodeQuery": |
-          sum by (<<.GroupBy>>) (
-            node_memory_working_set_bytes{<<.LabelMatchers>>}
-          )
-        "resources":
-          "overrides":
-            "node":
-              "resource": "node"
-            "namespace":
-              "resource": "namespace"
-            "pod":
-              "resource": "pod"
-      "window": "5m"
-kind: ConfigMap
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: adapter-config
-  namespace: monitoring

deploy/manifests/custom-metrics-apiserver-auth-delegator-cluster-role-binding.yaml

@@ -1,12 +1,12 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
-  name: prometheus
+  name: custom-metrics:system:auth-delegator
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
-  name: prometheus
+  name: system:auth-delegator
 subjects:
 - kind: ServiceAccount
-  name: prometheus
+  name: custom-metrics-apiserver
-  namespace: prometheus-adapter-e2e
+  namespace: custom-metrics

deploy/manifests/custom-metrics-apiserver-auth-reader-role-binding.yaml

@@ -1,11 +1,7 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
-  labels:
+  name: custom-metrics-auth-reader
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: resource-metrics-auth-reader
   namespace: kube-system
 roleRef:
   apiGroup: rbac.authorization.k8s.io
@@ -13,5 +9,5 @@ roleRef:
   name: extension-apiserver-authentication-reader
 subjects:
 - kind: ServiceAccount
-  name: prometheus-adapter
+  name: custom-metrics-apiserver
-  namespace: monitoring
+  namespace: custom-metrics

deploy/manifests/custom-metrics-apiserver-deployment.yaml

@@ -0,0 +1,51 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: custom-metrics-apiserver
+  name: custom-metrics-apiserver
+  namespace: custom-metrics
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: custom-metrics-apiserver
+  template:
+    metadata:
+      labels:
+        app: custom-metrics-apiserver
+      name: custom-metrics-apiserver
+    spec:
+      serviceAccountName: custom-metrics-apiserver
+      containers:
+      - name: custom-metrics-apiserver
+        image: directxman12/k8s-prometheus-adapter-amd64
+        args:
+        - --secure-port=6443
+        - --tls-cert-file=/var/run/serving-cert/serving.crt
+        - --tls-private-key-file=/var/run/serving-cert/serving.key
+        - --logtostderr=true
+        - --prometheus-url=http://prometheus.prom.svc:9090/
+        - --metrics-relist-interval=1m
+        - --v=10
+        - --config=/etc/adapter/config.yaml
+        ports:
+        - containerPort: 6443
+        volumeMounts:
+        - mountPath: /var/run/serving-cert
+          name: volume-serving-cert
+          readOnly: true
+        - mountPath: /etc/adapter/
+          name: config
+          readOnly: true
+        - mountPath: /tmp
+          name: tmp-vol
+      volumes:
+      - name: volume-serving-cert
+        secret:
+          secretName: cm-adapter-serving-certs
+      - name: config
+        configMap:
+          name: adapter-config
+      - name: tmp-vol
+        emptyDir: {}

deploy/manifests/custom-metrics-apiserver-resource-reader-cluster-role-binding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: custom-metrics-resource-reader
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: custom-metrics-resource-reader
+subjects:
+- kind: ServiceAccount
+  name: custom-metrics-apiserver
+  namespace: custom-metrics

deploy/manifests/custom-metrics-apiserver-service-account.yaml

@@ -0,0 +1,5 @@
+kind: ServiceAccount
+apiVersion: v1
+metadata:
+  name: custom-metrics-apiserver
+  namespace: custom-metrics

deploy/manifests/custom-metrics-apiserver-service.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: custom-metrics-apiserver
+  namespace: custom-metrics
+spec:
+  ports:
+  - port: 443
+    targetPort: 6443
+  selector:
+    app: custom-metrics-apiserver

deploy/manifests/custom-metrics-apiservice.yaml

@@ -0,0 +1,13 @@
+apiVersion: apiregistration.k8s.io/v1beta1
+kind: APIService
+metadata:
+  name: v1beta1.custom.metrics.k8s.io
+spec:
+  service:
+    name: custom-metrics-apiserver
+    namespace: custom-metrics
+  group: custom.metrics.k8s.io
+  version: v1beta1
+  insecureSkipTLSVerify: true
+  groupPriorityMinimum: 100
+  versionPriority: 100

deploy/manifests/custom-metrics-cluster-role.yaml

@@ -0,0 +1,9 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: custom-metrics-server-resources
+rules:
+- apiGroups:
+  - custom.metrics.k8s.io
+  resources: ["*"]
+  verbs: ["*"]

deploy/manifests/custom-metrics-config-map.yaml

@@ -0,0 +1,98 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: adapter-config
+  namespace: custom-metrics
+data:
+  config.yaml: |
+    rules:
+    - seriesQuery: '{__name__=~"^container_.*",container_name!="POD",namespace!="",pod_name!=""}'
+      seriesFilters: []
+      resources:
+        overrides:
+          namespace:
+            resource: namespace
+          pod_name:
+            resource: pod
+      name:
+        matches: ^container_(.*)_seconds_total$
+        as: ""
+      metricsQuery: sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[1m])) by (<<.GroupBy>>)
+    - seriesQuery: '{__name__=~"^container_.*",container_name!="POD",namespace!="",pod_name!=""}'
+      seriesFilters:
+      - isNot: ^container_.*_seconds_total$
+      resources:
+        overrides:
+          namespace:
+            resource: namespace
+          pod_name:
+            resource: pod
+      name:
+        matches: ^container_(.*)_total$
+        as: ""
+      metricsQuery: sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[1m])) by (<<.GroupBy>>)
+    - seriesQuery: '{__name__=~"^container_.*",container_name!="POD",namespace!="",pod_name!=""}'
+      seriesFilters:
+      - isNot: ^container_.*_total$
+      resources:
+        overrides:
+          namespace:
+            resource: namespace
+          pod_name:
+            resource: pod
+      name:
+        matches: ^container_(.*)$
+        as: ""
+      metricsQuery: sum(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}) by (<<.GroupBy>>)
+    - seriesQuery: '{namespace!="",__name__!~"^container_.*"}'
+      seriesFilters:
+      - isNot: .*_total$
+      resources:
+        template: <<.Resource>>
+      name:
+        matches: ""
+        as: ""
+      metricsQuery: sum(<<.Series>>{<<.LabelMatchers>>}) by (<<.GroupBy>>)
+    - seriesQuery: '{namespace!="",__name__!~"^container_.*"}'
+      seriesFilters:
+      - isNot: .*_seconds_total
+      resources:
+        template: <<.Resource>>
+      name:
+        matches: ^(.*)_total$
+        as: ""
+      metricsQuery: sum(rate(<<.Series>>{<<.LabelMatchers>>}[1m])) by (<<.GroupBy>>)
+    - seriesQuery: '{namespace!="",__name__!~"^container_.*"}'
+      seriesFilters: []
+      resources:
+        template: <<.Resource>>
+      name:
+        matches: ^(.*)_seconds_total$
+        as: ""
+      metricsQuery: sum(rate(<<.Series>>{<<.LabelMatchers>>}[1m])) by (<<.GroupBy>>)
+    resourceRules:
+      cpu:
+        containerQuery: sum(rate(container_cpu_usage_seconds_total{<<.LabelMatchers>>}[1m])) by (<<.GroupBy>>)
+        nodeQuery: sum(rate(container_cpu_usage_seconds_total{<<.LabelMatchers>>, id='/'}[1m])) by (<<.GroupBy>>)
+        resources:
+          overrides:
+            instance:
+              resource: node
+            namespace:
+              resource: namespace
+            pod_name:
+              resource: pod
+        containerLabel: container_name
+      memory:
+        containerQuery: sum(container_memory_working_set_bytes{<<.LabelMatchers>>}) by (<<.GroupBy>>)
+        nodeQuery: sum(container_memory_working_set_bytes{<<.LabelMatchers>>,id='/'}) by (<<.GroupBy>>)
+        resources:
+          overrides:
+            instance:
+              resource: node
+            namespace:
+              resource: namespace
+            pod_name:
+              resource: pod
+        containerLabel: container_name
+      window: 1m

deploy/manifests/custom-metrics-resource-reader-cluster-role.yaml

@@ -0,0 +1,14 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: custom-metrics-resource-reader
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - namespaces
+  - pods
+  - services
+  verbs:
+  - get
+  - list

deploy/manifests/deployment.yaml

@@ -1,89 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-  namespace: monitoring
-spec:
-  replicas: 2
-  selector:
-    matchLabels:
-      app.kubernetes.io/component: metrics-adapter
-      app.kubernetes.io/name: prometheus-adapter
-  strategy:
-    rollingUpdate:
-      maxSurge: 1
-      maxUnavailable: 1
-  template:
-    metadata:
-      labels:
-        app.kubernetes.io/component: metrics-adapter
-        app.kubernetes.io/name: prometheus-adapter
-        app.kubernetes.io/version: 0.12.0
-    spec:
-      automountServiceAccountToken: true
-      containers:
-      - args:
-        - --cert-dir=/var/run/serving-cert
-        - --config=/etc/adapter/config.yaml
-        - --metrics-relist-interval=1m
-        - --prometheus-url=https://prometheus.monitoring.svc:9090/
-        - --secure-port=6443
-        - --tls-cipher-suites=TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA
-        image: registry.k8s.io/prometheus-adapter/prometheus-adapter:v0.12.0
-        livenessProbe:
-          failureThreshold: 5
-          httpGet:
-            path: /livez
-            port: https
-            scheme: HTTPS
-          initialDelaySeconds: 30
-          periodSeconds: 5
-        name: prometheus-adapter
-        ports:
-        - containerPort: 6443
-          name: https
-        readinessProbe:
-          failureThreshold: 5
-          httpGet:
-            path: /readyz
-            port: https
-            scheme: HTTPS
-          initialDelaySeconds: 30
-          periodSeconds: 5
-        resources:
-          requests:
-            cpu: 102m
-            memory: 180Mi
-        securityContext:
-          allowPrivilegeEscalation: false
-          capabilities:
-            drop:
-            - ALL
-          readOnlyRootFilesystem: true
-        terminationMessagePolicy: FallbackToLogsOnError
-        volumeMounts:
-        - mountPath: /tmp
-          name: tmpfs
-          readOnly: false
-        - mountPath: /var/run/serving-cert
-          name: volume-serving-cert
-          readOnly: false
-        - mountPath: /etc/adapter
-          name: config
-          readOnly: false
-      nodeSelector:
-        kubernetes.io/os: linux
-      securityContext: {}
-      serviceAccountName: prometheus-adapter
-      volumes:
-      - emptyDir: {}
-        name: tmpfs
-      - emptyDir: {}
-        name: volume-serving-cert
-      - configMap:
-          name: adapter-config
-        name: config

deploy/manifests/hpa-custom-metrics-cluster-role-binding.yaml

@@ -2,9 +2,6 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: hpa-controller-custom-metrics
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole

deploy/manifests/network-policy.yaml

@@ -1,21 +0,0 @@
-apiVersion: networking.k8s.io/v1
-kind: NetworkPolicy
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-  namespace: monitoring
-spec:
-  egress:
-  - {}
-  ingress:
-  - {}
-  podSelector:
-    matchLabels:
-      app.kubernetes.io/component: metrics-adapter
-      app.kubernetes.io/name: prometheus-adapter
-  policyTypes:
-  - Egress
-  - Ingress

deploy/manifests/pod-disruption-budget.yaml

@@ -1,15 +0,0 @@
-apiVersion: policy/v1
-kind: PodDisruptionBudget
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-  namespace: monitoring
-spec:
-  minAvailable: 1
-  selector:
-    matchLabels:
-      app.kubernetes.io/component: metrics-adapter
-      app.kubernetes.io/name: prometheus-adapter

deploy/manifests/service-account.yaml

@@ -1,10 +0,0 @@
-apiVersion: v1
-automountServiceAccountToken: false
-kind: ServiceAccount
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-  namespace: monitoring

deploy/manifests/service.yaml

@@ -1,17 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  labels:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter
-    app.kubernetes.io/version: 0.12.0
-  name: prometheus-adapter
-  namespace: monitoring
-spec:
-  ports:
-  - name: https
-    port: 443
-    targetPort: 6443
-  selector:
-    app.kubernetes.io/component: metrics-adapter
-    app.kubernetes.io/name: prometheus-adapter

docs/config-walkthrough.md

@@ -99,7 +99,7 @@ all resources currently available in your cluster, you can use the
 `kubectl api-resources` command (but the list of available resources can
 change as you add or remove CRDs or aggregated API servers).  For more
 information on resources, see [Kinds, Resources, and
-Scopes](https://github.com/kubernetes-sigs/custom-metrics-apiserver/blob/master/docs/getting-started.md#kinds-resources-and-scopes)
+Scopes](https://github.com/kubernetes-incubator/custom-metrics-apiserver/blob/master/docs/getting-started.md#kinds-resources-and-scopes)
 in the custom-metrics-apiserver boilerplate guide.
 
 Now, cumulative metrics (like those that end in `_total`) aren't

docs/config.md

@@ -31,13 +31,13 @@ might look like:
 ```yaml
 rules:
 # this rule matches cumulative cAdvisor metrics measured in seconds
-- seriesQuery: '{__name__=~"^container_.*",container!="POD",namespace!="",pod!=""}'
+- seriesQuery: '{__name__=~"^container_.*",container_name!="POD",namespace!="",pod_name!=""}'
   resources:
     # skip specifying generic resource<->label mappings, and just
     # attach only pod and namespace resources by mapping label names to group-resources
     overrides:
-      namespace: {resource: "namespace"}
+      namespace: {resource: "namespace"},
-      pod: {resource: "pod"}
+      pod_name: {resource: "pod"},
   # specify that the `container_` and `_seconds_total` suffixes should be removed.
   # this also introduces an implicit filter on metric family names
   name:
@@ -48,7 +48,7 @@ rules:
   # This is a Go template where the `.Series` and `.LabelMatchers` string values
   # are available, and the delimiters are `<<` and `>>` to avoid conflicts with
   # the prometheus query language
-  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[2m])) by (<<.GroupBy>>)"
+  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[2m])) by (<<.GroupBy>>)"
 ```
 
 Discovery
@@ -83,7 +83,7 @@ For example:
 
 ```yaml
 # match all cAdvisor metrics that aren't measured in seconds
-seriesQuery: '{__name__=~"^container_.*_total",container!="POD",namespace!="",pod!=""}'
+seriesQuery: '{__name__=~"^container_.*_total",container_name!="POD",namespace!="",pod_name!=""}'
 seriesFilters:
   - isNot: "^container_.*_seconds_total"
 ```
@@ -211,5 +211,5 @@ For example:
 
 ```yaml
 # convert cumulative cAdvisor metrics into rates calculated over 2 minutes
-metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[2m])) by (<<.GroupBy>>)"
+metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[2m])) by (<<.GroupBy>>)"
 ```

docs/externalmetrics.md

@@ -1,84 +0,0 @@
-External Metrics
-===========
-
-It's possible to configure [Autoscaling on metrics not related to Kubernetes objects](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/#autoscaling-on-metrics-not-related-to-kubernetes-objects) in Kubernetes. This is done with a special `External Metrics` system. Using external metrics in Kubernetes with the adapter requires you to configure special `external` rules in the configuration.
-
-The configuration for `external` metrics rules is almost identical to the normal `rules`:
-
-```yaml
-externalRules:
-- seriesQuery: '{__name__="queue_consumer_lag",name!=""}'
-  metricsQuery: sum(<<.Series>>{<<.LabelMatchers>>}) by (name)
-  resources:
-    overrides: { namespace: {resource: "namespace"} }
-```
-
-Namespacing
------------
-
-All Kubernetes Horizontal Pod Autoscaler (HPA) resources are namespaced. And when you create an HPA that
-references an external metric the adapter will automatically add a `namespace` label to the `seriesQuery` you have configured.
-
-This is done because the External Merics API Specification *requires* a namespace component in the URL:
-
-```shell
-kubectl get --raw "/apis/external.metrics.k8s.io/v1beta1/namespaces/default/queue_consumer_lag"
-```
-
-Cross-Namespace or No Namespace Queries
----------------------------------------
-
-A semi-common scenario is to have a `workload` in one namespace that needs to scale based on a metric from a different namespace. This is normally not
-possible with `external` rules because the `namespace` label is set to match that of the source `workload`.
-
-However, you can explicitly disable the automatic add of the HPA namepace to the query, and instead opt to not set a namespace at all, or to target a different namespace.
-
-This is done by setting `namespaced: false` in the `resources` section of the `external` rule:
-
-```yaml
-# rules: ...
-
-externalRules:
-- seriesQuery: '{__name__="queue_depth",name!=""}'
-  metricsQuery: sum(<<.Series>>{<<.LabelMatchers>>}) by (name)
-  resources:
-    namespaced: false
-```
-
-Given the `external` rules defined above any `External` metric query for `queue_depth` will simply ignore the source `namespace` of the HPA. This allows you to explicilty not put a namespace into an external query, or to set the namespace to one that might be different from that of the HPA.
-
-```yaml
-apiVersion: autoscaling/v1
-kind: HorizontalPodAutoscaler
-metadata:
-  name: external-queue-scaler
-  # the HPA and scaleTargetRef must exist in a namespace
-  namespace: default
-  annotations:
-    # The "External" metric below targets a metricName that has namespaced=false
-    # and this allows the metric to explicitly query a different
-    # namespace than that of the HPA and scaleTargetRef
-    autoscaling.alpha.kubernetes.io/metrics: |
-      [
-        {
-            "type": "External",
-            "external": {
-                "metricName": "queue_depth",
-                "metricSelector": {
-                    "matchLabels": {
-                        "namespace": "queue",
-                        "name": "my-sample-queue"
-                    }
-                },
-                "targetAverageValue": "50"
-            }
-        }
-      ]
-spec:
-  maxReplicas: 5
-  minReplicas: 1
-  scaleTargetRef:
-    apiVersion: apps/v1
-    kind: Deployment
-    name: my-app
-```

docs/sample-config.yaml

@@ -10,16 +10,16 @@ rules:
 # can be found in pkg/config/default.go
 
 # this rule matches cumulative cAdvisor metrics measured in seconds
-- seriesQuery: '{__name__=~"^container_.*",container!="POD",namespace!="",pod!=""}'
+- seriesQuery: '{__name__=~"^container_.*",container_name!="POD",namespace!="",pod_name!=""}'
   resources:
     # skip specifying generic resource<->label mappings, and just
     # attach only pod and namespace resources by mapping label names to group-resources
     overrides:
-      namespace: {resource: "namespace"}
+      namespace: {resource: "namespace"},
-      pod: {resource: "pod"}
+      pod_name: {resource: "pod"},
   # specify that the `container_` and `_seconds_total` suffixes should be removed.
   # this also introduces an implicit filter on metric family names
-  name:
+  name: 
     # we use the value of the capture group implicitly as the API name
     # we could also explicitly write `as: "$1"`
     matches: "^container_(.*)_seconds_total$"
@@ -27,19 +27,19 @@ rules:
   # This is a Go template where the `.Series` and `.LabelMatchers` string values
   # are available, and the delimiters are `<<` and `>>` to avoid conflicts with
   # the prometheus query language
-  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[2m])) by (<<.GroupBy>>)"
+  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[2m])) by (<<.GroupBy>>)"
 
 # this rule matches cumulative cAdvisor metrics not measured in seconds
-- seriesQuery: '{__name__=~"^container_.*_total",container!="POD",namespace!="",pod!=""}'
+- seriesQuery: '{__name__=~"^container_.*_total",container_name!="POD",namespace!="",pod_name!=""}'
   resources:
     overrides:
-      namespace: {resource: "namespace"}
+      namespace: {resource: "namespace"},
-      pod: {resource: "pod"}
+      pod_name: {resource: "pod"},
   seriesFilters:
   # since this is a superset of the query above, we introduce an additional filter here
   - isNot: "^container_.*_seconds_total$"
   name: {matches: "^container_(.*)_total$"}
-  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[2m])) by (<<.GroupBy>>)"
+  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[2m])) by (<<.GroupBy>>)"
 
 # this rule matches cumulative non-cAdvisor metrics
 - seriesQuery: '{namespace!="",__name__!="^container_.*"}'
@@ -52,7 +52,7 @@ rules:
     # Group will be converted to a form acceptible for use as a label automatically.
     template: "<<.Resource>>"
     # if we wanted to, we could also specify overrides here
-  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container!="POD"}[2m])) by (<<.GroupBy>>)"
+  metricsQuery: "sum(rate(<<.Series>>{<<.LabelMatchers>>,container_name!="POD"}[2m])) by (<<.GroupBy>>)"
 
 # this rule matches only a single metric, explicitly naming it something else
 # It's series query *must* return only a single metric family
@@ -63,21 +63,7 @@ rules:
     overrides:
       # this should still resolve in our cluster
       brand: {group: "cheese.io", resource: "brand"}
-  metricsQuery: 'count(cheddar{sharp="true"})'
+  metricQuery: 'count(cheddar{sharp="true"})'
-
-# external rules are not tied to a Kubernetes resource and can reference any metric
-# https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough/#autoscaling-on-metrics-not-related-to-kubernetes-objects
-externalRules:
-- seriesQuery: '{__name__="queue_consumer_lag",name!=""}'
-  metricsQuery: sum(<<.Series>>{<<.LabelMatchers>>}) by (name)
-- seriesQuery: '{__name__="queue_depth",topic!=""}'
-  metricsQuery: sum(<<.Series>>{<<.LabelMatchers>>}) by (name)
-  # Kubernetes metric queries include a namespace in the query by default
-  # but you can explicitly disable namespaces if needed with "namespaced: false"
-  # this is useful if you have an HPA with an external metric in namespace A
-  # but want to query for metrics from namespace B
-  resources:
-    namespaced: false
 
 # TODO: should we be able to map to a constant instance of a resource
 # (e.g. `resources: {constant: [{resource: "namespace", name: "kube-system"}}]`)?

docs/walkthrough.md

@@ -34,24 +34,20 @@ significantly different.
 In order to follow this walkthrough, you'll need container images for
 Prometheus and the custom metrics adapter.
 
-The [Prometheus Operator](https://github.com/prometheus-operator/prometheus-operator),
+The [Prometheus Operator](https://coreos.com/operators/prometheus/docs/latest/),
 makes it easy to get up and running with Prometheus.  This walkthrough
 will assume you're planning on doing that -- if you've deployed it by hand
 instead, you'll need to make a few adjustments to the way you expose
 metrics to Prometheus.
 
 The adapter has different images for each arch, which can be found at
-`gcr.io/k8s-staging-prometheus-adapter/prometheus-adapter-${ARCH}`. For
+`directxman12/k8s-prometheus-adapter-${ARCH}`. For instance, if you're on
-instance, if you're on an x86_64 machine, use
+an x86_64 machine, use the `directxman12/k8s-prometheus-adapter-amd64`
-`gcr.io/k8s-staging-prometheus-adapter/prometheus-adapter-amd64` image.
+image.
 
-There is also an official multi arch image available at
+If you're feeling adventurous, you can build the latest version of the
-`registry.k8s.io/prometheus-adapter/prometheus-adapter:${VERSION}`.
+custom metrics adapter by running `make docker-build` or `make
-
+build-local-image`.
-
-If you're feeling adventurous, you can build the latest version of
-prometheus-adapter by running `make container` or get the latest image from the
-staging registry `gcr.io/k8s-staging-prometheus-adapter/prometheus-adapter`.
 
 Special thanks to [@luxas](https://github.com/luxas) for providing the
 demo application for this walkthrough.
@@ -98,33 +94,9 @@ spec:
 
 </details>
 
-<details>
-
-<summary>sample-app.service.yaml</summary>
-
-```yaml
-apiVersion: v1
-kind: Service
-metadata:
-  labels:
-    app: sample-app
-  name: sample-app
-spec:
-  ports:
-  - name: http
-    port: 80
-    protocol: TCP
-    targetPort: 8080
-  selector:
-    app: sample-app
-  type: ClusterIP
-```
-
-</details>
-
 ```shell
 $ kubectl create -f sample-app.deploy.yaml
-$ kubectl create -f sample-app.service.yaml
+$ kubectl create service clusterip sample-app --tcp=80:8080
 ```
 
 Now, check your app, which exposes metrics and counts the number of
@@ -142,11 +114,11 @@ a HorizontalPodAutoscaler like this to accomplish the autoscaling:
 
 <details>
 
-<summary>sample-app.hpa.yaml</summary>
+<summary>sample-app-hpa.yaml</summary>
 
 ```yaml
 kind: HorizontalPodAutoscaler
-apiVersion: autoscaling/v2
+apiVersion: autoscaling/v2beta1
 metadata:
   name: sample-app
 spec:
@@ -165,13 +137,10 @@ spec:
   - type: Pods
     pods:
       # use the metric that you used above: pods/http_requests
-      metric:
+      metricName: http_requests
-        name: http_requests
       # target 500 milli-requests per second,
       # which is 1 request every two seconds
-      target:
+      targetAverageValue: 500m
-        type: Value
-        averageValue: 500m
 ```
 
 </details>
@@ -179,7 +148,7 @@ spec:
 If you try creating that now (and take a look at your controller-manager
 logs), you'll see that the that the HorizontalPodAutoscaler controller is
 attempting to fetch metrics from
-`/apis/custom.metrics.k8s.io/v1beta2/namespaces/default/pods/*/http_requests?selector=app%3Dsample-app`,
+`/apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/*/http_requests?selector=app%3Dsample-app`,
 but right now, nothing's serving that API.
 
 Before you can autoscale your application, you'll need to make sure that
@@ -196,15 +165,15 @@ Prometheus adapter to serve metrics out of Prometheus.
 ### Launching Prometheus
 
 First, you'll need to deploy the Prometheus Operator.  Check out the
-[quick start
+[getting started
-guide](https://github.com/prometheus-operator/prometheus-operator#quickstart)
+guide](https://coreos.com/operators/prometheus/docs/latest/user-guides/getting-started.html)
 for the Operator to deploy a copy of Prometheus.
 
-This walkthrough assumes that Prometheus is deployed in the `monitoring`
+This walkthrough assumes that Prometheus is deployed in the `prom`
 namespace. Most of the sample commands and files are namespace-agnostic,
 but there are a few commands or pieces of configuration that rely on that
 namespace.  If you're using a different namespace, simply substitute that
-in for `monitoring` when it appears.
+in for `prom` when it appears.
 
 ### Monitoring Your Application
 
@@ -216,7 +185,7 @@ service:
 
 <details>
 
-<summary>sample-app.monitor.yaml</summary>
+<summary>service-monitor.yaml</summary>
 
 ```yaml
 kind: ServiceMonitor
@@ -229,19 +198,19 @@ spec:
   selector:
     matchLabels:
       app: sample-app
-  endpoints:
+  endpoints: 
   - port: http
 ```
 
 </details>
 
 ```shell
-$ kubectl create -f sample-app.monitor.yaml
+$ kubectl create -f service-monitor.yaml
 ```
 
-Now, you should see your metrics (`http_requests_total`) appear in your Prometheus instance.  Look
+Now, you should see your metrics appear in your Prometheus instance.  Look
 them up via the dashboard, and make sure they have the `namespace` and
-`pod` labels. If not, check the labels on the service monitor match the ones on the Prometheus CRD.
+`pod` labels.
 
 ### Launching the Adapter
 
@@ -259,46 +228,7 @@ the steps to deploy the adapter.  Note that if you're deploying on
 a non-x86_64 (amd64) platform, you'll need to change the `image` field in
 the Deployment to be the appropriate image for your platform.
 
-However an update to the adapter config is necessary in order to
+The default adapter configuration should work for this walkthrough and
-expose custom metrics.
-
-<details>
-
-<summary>prom-adapter.config.yaml</summary>
-
-```yaml
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: adapter-config
-  namespace: monitoring
-data:
-  config.yaml: |-
-    "rules":
-    - "seriesQuery": |
-         {namespace!="",__name__!~"^container_.*"}
-      "resources":
-        "template": "<<.Resource>>"
-      "name":
-        "matches": "^(.*)_total"
-        "as": ""
-      "metricsQuery": |
-        sum by (<<.GroupBy>>) (
-          irate (
-            <<.Series>>{<<.LabelMatchers>>}[1m]
-          )
-        )
-```
-
-</details>
-
-```shell
-$ kubectl apply -f prom-adapter.config.yaml
-# Restart prom-adapter pods
-$ kubectl rollout restart deployment prometheus-adapter -n monitoring
-```
-
-This adapter configuration should work for this walkthrough together with
 a standard Prometheus Operator configuration, but if you've got custom
 relabelling rules, or your labels above weren't exactly `namespace` and
 `pod`, you may need to edit the configuration in the ConfigMap. The
@@ -307,36 +237,11 @@ overview of how configuration works.
 
 ### The Registered API
 
-We also need to register the custom metrics API with the API aggregator (part of
+As part of the creation of the adapter Deployment and associated objects
-the main Kubernetes API server). For that we need to create an APIService resource
+(performed above), we registered the API with the API aggregator (part of
+the main Kubernetes API server).
 
-<details>
+The API is registered as `custom.metrics.k8s.io/v1beta1`, and you can find
-
-<summary>api-service.yaml</summary>
-
-```yaml
-apiVersion: apiregistration.k8s.io/v1
-kind: APIService
-metadata:
-  name: v1beta2.custom.metrics.k8s.io
-spec:
-  group: custom.metrics.k8s.io
-  groupPriorityMinimum: 100
-  insecureSkipTLSVerify: true
-  service:
-    name: prometheus-adapter
-    namespace: monitoring
-  version: v1beta2
-  versionPriority: 100
-```
-
-</details>
-
-```shell
-$ kubectl create -f api-service.yaml
-```
-
-The API is registered as `custom.metrics.k8s.io/v1beta2`, and you can find
 more information about aggregation at [Concepts:
 Aggregation](https://github.com/kubernetes-incubator/apiserver-builder/blob/master/docs/concepts/aggregation.md).
 
@@ -347,7 +252,7 @@ With that all set, your custom metrics API should show up in discovery.
 Try fetching the discovery information for it:
 
 ```shell
-$ kubectl get --raw /apis/custom.metrics.k8s.io/v1beta2
+$ kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1
 ```
 
 Since you've set up Prometheus to collect your app's metrics, you should
@@ -361,12 +266,12 @@ sends a raw GET request to the Kubernetes API server, automatically
 injecting auth information:
 
 ```shell
-$ kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta2/namespaces/default/pods/*/http_requests?selector=app%3Dsample-app"
+$ kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/*/http_requests?selector=app%3Dsample-app"
 ```
 
 Because of the adapter's configuration, the cumulative metric
 `http_requests_total` has been converted into a rate metric,
-`pods/http_requests`, which measures requests per second over a 1 minute
+`pods/http_requests`, which measures requests per second over a 2 minute
 interval. The value should currently be close to zero, since there's no
 traffic to your app, except for the regular metrics collection from
 Prometheus.
@@ -417,7 +322,7 @@ and make decisions based on it.
 If you didn't create the HorizontalPodAutoscaler above, create it now:
 
 ```shell
-$ kubectl create -f sample-app.hpa.yaml
+$ kubectl create -f sample-app-hpa.yaml
 ```
 
 Wait a little bit, and then examine the HPA:
@@ -430,7 +335,7 @@ You should see that it succesfully fetched the metric, but it hasn't tried
 to scale, since there's not traffic.
 
 Since your app is going to need to scale in response to traffic, generate
-some via cURL like above:
+some via cURL like above: 
 
 ```shell
 $ curl http://$(kubectl get service sample-app -o jsonpath='{ .spec.clusterIP }')/metrics
@@ -463,4 +368,4 @@ setting different labels or using the `Object` metric source type.
 
 For more information on how metrics are exposed by the Prometheus adapter,
 see [config documentation](/docs/config.md), and check the [default
-configuration](/deploy/manifests/config-map.yaml).
+configuration](/deploy/manifests/custom-metrics-config-map.yaml).

go.mod

@@ -1,118 +1,31 @@
-module sigs.k8s.io/prometheus-adapter
+module github.com/directxman12/k8s-prometheus-adapter
 
-go 1.22.1
+go 1.13
-
-toolchain go1.22.2
 
 require (
-	github.com/onsi/ginkgo v1.16.5
+	github.com/NYTimes/gziphandler v1.0.1 // indirect
-	github.com/onsi/gomega v1.33.1
+	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
-	github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.73.2
+	github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef // indirect
-	github.com/prometheus-operator/prometheus-operator/pkg/client v0.73.2
+	github.com/kubernetes-incubator/custom-metrics-apiserver v0.0.0-20200323093244-5046ce1afe6b
-	github.com/prometheus/client_golang v1.18.0
+	github.com/onsi/ginkgo v1.10.1
-	github.com/prometheus/common v0.46.0
+	github.com/onsi/gomega v1.7.0
-	github.com/spf13/cobra v1.8.0
+	github.com/prometheus/client_golang v1.0.0
-	github.com/stretchr/testify v1.9.0
+	github.com/prometheus/common v0.4.1
-	gopkg.in/yaml.v2 v2.4.0
+	github.com/spf13/cobra v0.0.5
-	k8s.io/api v0.30.0
+	github.com/stretchr/testify v1.4.0
-	k8s.io/apimachinery v0.30.0
+	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
-	k8s.io/apiserver v0.30.0
+	gopkg.in/yaml.v2 v2.2.8
-	k8s.io/client-go v0.30.0
+	k8s.io/api v0.17.3
-	k8s.io/component-base v0.30.0
+	k8s.io/apimachinery v0.17.3
-	k8s.io/klog/v2 v2.120.1
+	k8s.io/client-go v0.17.3
-	k8s.io/kube-openapi v0.0.0-20240430033511-f0e62f92d13f
+	k8s.io/component-base v0.17.3
-	k8s.io/metrics v0.30.0
+	k8s.io/klog v1.0.0
-	sigs.k8s.io/custom-metrics-apiserver v1.30.0
+	k8s.io/metrics v0.17.3
-	sigs.k8s.io/metrics-server v0.7.1
+	sigs.k8s.io/metrics-server v0.3.7
 )
 
-require (
+replace (
-	github.com/NYTimes/gziphandler v1.1.1 // indirect
+	// forced by the inclusion of sigs.k8s.io/metrics-server's use of this in their go.mod
-	github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230305170008-8188dc5388df // indirect
+	k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1 => ./localvendor/k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1
-	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
+	sigs.k8s.io/metrics-server v0.3.7 => sigs.k8s.io/metrics-server v0.0.0-20200406215547-5fcf6956a533
-	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/blang/semver/v4 v4.0.0 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/coreos/go-semver v0.3.1 // indirect
-	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
-	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/emicklei/go-restful/v3 v3.12.0 // indirect
-	github.com/evanphx/json-patch v5.9.0+incompatible // indirect
-	github.com/felixge/httpsnoop v1.0.4 // indirect
-	github.com/fsnotify/fsnotify v1.7.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
-	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-openapi/jsonpointer v0.21.0 // indirect
-	github.com/go-openapi/jsonreference v0.21.0 // indirect
-	github.com/go-openapi/swag v0.23.0 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/google/cel-go v0.17.8 // indirect
-	github.com/google/gnostic-models v0.6.8 // indirect
-	github.com/google/go-cmp v0.6.0 // indirect
-	github.com/google/gofuzz v1.2.0 // indirect
-	github.com/google/uuid v1.6.0 // indirect
-	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.18.1 // indirect
-	github.com/imdario/mergo v0.3.16 // indirect
-	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/josharian/intern v1.0.0 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/nxadm/tail v1.4.8 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/prometheus/client_model v0.5.0 // indirect
-	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/stoewer/go-strcase v1.3.0 // indirect
-	go.etcd.io/etcd/api/v3 v3.5.11 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.11 // indirect
-	go.etcd.io/etcd/client/v3 v3.5.11 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.46.1 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1 // indirect
-	go.opentelemetry.io/otel v1.21.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0 // indirect
-	go.opentelemetry.io/otel/metric v1.21.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.21.0 // indirect
-	go.opentelemetry.io/otel/trace v1.21.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
-	go.uber.org/multierr v1.11.0 // indirect
-	go.uber.org/zap v1.26.0 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
-	golang.org/x/exp v0.0.0-20231226003508-02704c960a9b // indirect
-	golang.org/x/mod v0.17.0 // indirect
-	golang.org/x/net v0.25.0 // indirect
-	golang.org/x/oauth2 v0.18.0 // indirect
-	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sys v0.28.0 // indirect
-	golang.org/x/term v0.27.0 // indirect
-	golang.org/x/text v0.21.0 // indirect
-	golang.org/x/time v0.5.0 // indirect
-	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
-	google.golang.org/appengine v1.6.8 // indirect
-	google.golang.org/genproto v0.0.0-20231212172506-995d672761c0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20231212172506-995d672761c0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20231212172506-995d672761c0 // indirect
-	google.golang.org/grpc v1.60.1 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
-	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
-	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/apiextensions-apiserver v0.29.3 // indirect
-	k8s.io/gengo/v2 v2.0.0-20240228010128-51d4e06bde70 // indirect
-	k8s.io/kms v0.30.0 // indirect
-	k8s.io/utils v0.0.0-20240423183400-0849a56e8f22 // indirect
-	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.29.0 // indirect
-	sigs.k8s.io/controller-runtime v0.17.2 // indirect
-	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
-	sigs.k8s.io/yaml v1.4.0 // indirect
 )

go.sum

@@ -1,383 +1,467 @@
-cloud.google.com/go v0.111.0 h1:YHLKNupSD1KqjDbQ3+LVdQ81h/UJbJyZG203cEfnQgM=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go/compute v1.23.3 h1:6sVlXXBmbd7jNX0Ipq0trII3e4n1/MsADLK6a+aiVlk=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go/compute v1.23.3/go.mod h1:VCgBUoMnIVIR0CscqQiPJLAG25E3ZRZMzcFZeQ+h8CI=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
-cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
+github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
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-github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
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+github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
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hack/gofmt-all.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Copyright 2017 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+verify=0
+if [[ ${1:-} = "--verify" || ${1:-} = "-v" ]]; then
+  verify=1
+fi
+
+find_files() {
+  find . -not \( \( \
+    -wholename './_output' \
+    -o -wholename './vendor' \
+  \) -prune \) -name '*.go'
+}
+
+if [[ $verify -eq 1 ]]; then
+  diff=$(find_files | xargs gofmt -s -d 2>&1)
+  if [[ -n "${diff}" ]]; then
+    echo "gofmt -s -w $(echo "${diff}" | awk '/^diff / { print $2 }' | tr '\n' ' ')"
+    exit 1
+  fi
+else
+  find_files | xargs gofmt -s -w
+fi

localvendor/k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1/go.mod

@@ -0,0 +1 @@
+module k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1

localvendor/k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1/types.go

@@ -0,0 +1,332 @@
+/*
+Copyright 2015 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// Summary is a top-level container for holding NodeStats and PodStats.
+type Summary struct {
+	// Overall node stats.
+	Node NodeStats `json:"node"`
+	// Per-pod stats.
+	Pods []PodStats `json:"pods"`
+}
+
+// NodeStats holds node-level unprocessed sample stats.
+type NodeStats struct {
+	// Reference to the measured Node.
+	NodeName string `json:"nodeName"`
+	// Stats of system daemons tracked as raw containers.
+	// The system containers are named according to the SystemContainer* constants.
+	// +optional
+	// +patchMergeKey=name
+	// +patchStrategy=merge
+	SystemContainers []ContainerStats `json:"systemContainers,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
+	// The time at which data collection for the node-scoped (i.e. aggregate) stats was (re)started.
+	StartTime metav1.Time `json:"startTime"`
+	// Stats pertaining to CPU resources.
+	// +optional
+	CPU *CPUStats `json:"cpu,omitempty"`
+	// Stats pertaining to memory (RAM) resources.
+	// +optional
+	Memory *MemoryStats `json:"memory,omitempty"`
+	// Stats pertaining to network resources.
+	// +optional
+	Network *NetworkStats `json:"network,omitempty"`
+	// Stats pertaining to total usage of filesystem resources on the rootfs used by node k8s components.
+	// NodeFs.Used is the total bytes used on the filesystem.
+	// +optional
+	Fs *FsStats `json:"fs,omitempty"`
+	// Stats about the underlying container runtime.
+	// +optional
+	Runtime *RuntimeStats `json:"runtime,omitempty"`
+	// Stats about the rlimit of system.
+	// +optional
+	Rlimit *RlimitStats `json:"rlimit,omitempty"`
+}
+
+// RlimitStats are stats rlimit of OS.
+type RlimitStats struct {
+	Time metav1.Time `json:"time"`
+
+	// The max PID of OS.
+	MaxPID *int64 `json:"maxpid,omitempty"`
+	// The number of running process in the OS.
+	NumOfRunningProcesses *int64 `json:"curproc,omitempty"`
+}
+
+// RuntimeStats are stats pertaining to the underlying container runtime.
+type RuntimeStats struct {
+	// Stats about the underlying filesystem where container images are stored.
+	// This filesystem could be the same as the primary (root) filesystem.
+	// Usage here refers to the total number of bytes occupied by images on the filesystem.
+	// +optional
+	ImageFs *FsStats `json:"imageFs,omitempty"`
+}
+
+const (
+	// SystemContainerKubelet is the container name for the system container tracking Kubelet usage.
+	SystemContainerKubelet = "kubelet"
+	// SystemContainerRuntime is the container name for the system container tracking the runtime (e.g. docker) usage.
+	SystemContainerRuntime = "runtime"
+	// SystemContainerMisc is the container name for the system container tracking non-kubernetes processes.
+	SystemContainerMisc = "misc"
+	// SystemContainerPods is the container name for the system container tracking user pods.
+	SystemContainerPods = "pods"
+)
+
+// PodStats holds pod-level unprocessed sample stats.
+type PodStats struct {
+	// Reference to the measured Pod.
+	PodRef PodReference `json:"podRef"`
+	// The time at which data collection for the pod-scoped (e.g. network) stats was (re)started.
+	StartTime metav1.Time `json:"startTime"`
+	// Stats of containers in the measured pod.
+	// +patchMergeKey=name
+	// +patchStrategy=merge
+	Containers []ContainerStats `json:"containers" patchStrategy:"merge" patchMergeKey:"name"`
+	// Stats pertaining to CPU resources consumed by pod cgroup (which includes all containers' resource usage and pod overhead).
+	// +optional
+	CPU *CPUStats `json:"cpu,omitempty"`
+	// Stats pertaining to memory (RAM) resources consumed by pod cgroup (which includes all containers' resource usage and pod overhead).
+	// +optional
+	Memory *MemoryStats `json:"memory,omitempty"`
+	// Stats pertaining to network resources.
+	// +optional
+	Network *NetworkStats `json:"network,omitempty"`
+	// Stats pertaining to volume usage of filesystem resources.
+	// VolumeStats.UsedBytes is the number of bytes used by the Volume
+	// +optional
+	// +patchMergeKey=name
+	// +patchStrategy=merge
+	VolumeStats []VolumeStats `json:"volume,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
+	// EphemeralStorage reports the total filesystem usage for the containers and emptyDir-backed volumes in the measured Pod.
+	// +optional
+	EphemeralStorage *FsStats `json:"ephemeral-storage,omitempty"`
+}
+
+// ContainerStats holds container-level unprocessed sample stats.
+type ContainerStats struct {
+	// Reference to the measured container.
+	Name string `json:"name"`
+	// The time at which data collection for this container was (re)started.
+	StartTime metav1.Time `json:"startTime"`
+	// Stats pertaining to CPU resources.
+	// +optional
+	CPU *CPUStats `json:"cpu,omitempty"`
+	// Stats pertaining to memory (RAM) resources.
+	// +optional
+	Memory *MemoryStats `json:"memory,omitempty"`
+	// Metrics for Accelerators. Each Accelerator corresponds to one element in the array.
+	Accelerators []AcceleratorStats `json:"accelerators,omitempty"`
+	// Stats pertaining to container rootfs usage of filesystem resources.
+	// Rootfs.UsedBytes is the number of bytes used for the container write layer.
+	// +optional
+	Rootfs *FsStats `json:"rootfs,omitempty"`
+	// Stats pertaining to container logs usage of filesystem resources.
+	// Logs.UsedBytes is the number of bytes used for the container logs.
+	// +optional
+	Logs *FsStats `json:"logs,omitempty"`
+	// User defined metrics that are exposed by containers in the pod. Typically, we expect only one container in the pod to be exposing user defined metrics. In the event of multiple containers exposing metrics, they will be combined here.
+	// +patchMergeKey=name
+	// +patchStrategy=merge
+	UserDefinedMetrics []UserDefinedMetric `json:"userDefinedMetrics,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
+}
+
+// PodReference contains enough information to locate the referenced pod.
+type PodReference struct {
+	Name      string `json:"name"`
+	Namespace string `json:"namespace"`
+	UID       string `json:"uid"`
+}
+
+// InterfaceStats contains resource value data about interface.
+type InterfaceStats struct {
+	// The name of the interface
+	Name string `json:"name"`
+	// Cumulative count of bytes received.
+	// +optional
+	RxBytes *uint64 `json:"rxBytes,omitempty"`
+	// Cumulative count of receive errors encountered.
+	// +optional
+	RxErrors *uint64 `json:"rxErrors,omitempty"`
+	// Cumulative count of bytes transmitted.
+	// +optional
+	TxBytes *uint64 `json:"txBytes,omitempty"`
+	// Cumulative count of transmit errors encountered.
+	// +optional
+	TxErrors *uint64 `json:"txErrors,omitempty"`
+}
+
+// NetworkStats contains data about network resources.
+type NetworkStats struct {
+	// The time at which these stats were updated.
+	Time metav1.Time `json:"time"`
+
+	// Stats for the default interface, if found
+	InterfaceStats `json:",inline"`
+
+	Interfaces []InterfaceStats `json:"interfaces,omitempty"`
+}
+
+// CPUStats contains data about CPU usage.
+type CPUStats struct {
+	// The time at which these stats were updated.
+	Time metav1.Time `json:"time"`
+	// Total CPU usage (sum of all cores) averaged over the sample window.
+	// The "core" unit can be interpreted as CPU core-nanoseconds per second.
+	// +optional
+	UsageNanoCores *uint64 `json:"usageNanoCores,omitempty"`
+	// Cumulative CPU usage (sum of all cores) since object creation.
+	// +optional
+	UsageCoreNanoSeconds *uint64 `json:"usageCoreNanoSeconds,omitempty"`
+}
+
+// MemoryStats contains data about memory usage.
+type MemoryStats struct {
+	// The time at which these stats were updated.
+	Time metav1.Time `json:"time"`
+	// Available memory for use.  This is defined as the memory limit - workingSetBytes.
+	// If memory limit is undefined, the available bytes is omitted.
+	// +optional
+	AvailableBytes *uint64 `json:"availableBytes,omitempty"`
+	// Total memory in use. This includes all memory regardless of when it was accessed.
+	// +optional
+	UsageBytes *uint64 `json:"usageBytes,omitempty"`
+	// The amount of working set memory. This includes recently accessed memory,
+	// dirty memory, and kernel memory. WorkingSetBytes is <= UsageBytes
+	// +optional
+	WorkingSetBytes *uint64 `json:"workingSetBytes,omitempty"`
+	// The amount of anonymous and swap cache memory (includes transparent
+	// hugepages).
+	// +optional
+	RSSBytes *uint64 `json:"rssBytes,omitempty"`
+	// Cumulative number of minor page faults.
+	// +optional
+	PageFaults *uint64 `json:"pageFaults,omitempty"`
+	// Cumulative number of major page faults.
+	// +optional
+	MajorPageFaults *uint64 `json:"majorPageFaults,omitempty"`
+}
+
+// AcceleratorStats contains stats for accelerators attached to the container.
+type AcceleratorStats struct {
+	// Make of the accelerator (nvidia, amd, google etc.)
+	Make string `json:"make"`
+
+	// Model of the accelerator (tesla-p100, tesla-k80 etc.)
+	Model string `json:"model"`
+
+	// ID of the accelerator.
+	ID string `json:"id"`
+
+	// Total accelerator memory.
+	// unit: bytes
+	MemoryTotal uint64 `json:"memoryTotal"`
+
+	// Total accelerator memory allocated.
+	// unit: bytes
+	MemoryUsed uint64 `json:"memoryUsed"`
+
+	// Percent of time over the past sample period (10s) during which
+	// the accelerator was actively processing.
+	DutyCycle uint64 `json:"dutyCycle"`
+}
+
+// VolumeStats contains data about Volume filesystem usage.
+type VolumeStats struct {
+	// Embedded FsStats
+	FsStats
+	// Name is the name given to the Volume
+	// +optional
+	Name string `json:"name,omitempty"`
+	// Reference to the PVC, if one exists
+	// +optional
+	PVCRef *PVCReference `json:"pvcRef,omitempty"`
+}
+
+// PVCReference contains enough information to describe the referenced PVC.
+type PVCReference struct {
+	Name      string `json:"name"`
+	Namespace string `json:"namespace"`
+}
+
+// FsStats contains data about filesystem usage.
+type FsStats struct {
+	// The time at which these stats were updated.
+	Time metav1.Time `json:"time"`
+	// AvailableBytes represents the storage space available (bytes) for the filesystem.
+	// +optional
+	AvailableBytes *uint64 `json:"availableBytes,omitempty"`
+	// CapacityBytes represents the total capacity (bytes) of the filesystems underlying storage.
+	// +optional
+	CapacityBytes *uint64 `json:"capacityBytes,omitempty"`
+	// UsedBytes represents the bytes used for a specific task on the filesystem.
+	// This may differ from the total bytes used on the filesystem and may not equal CapacityBytes - AvailableBytes.
+	// e.g. For ContainerStats.Rootfs this is the bytes used by the container rootfs on the filesystem.
+	// +optional
+	UsedBytes *uint64 `json:"usedBytes,omitempty"`
+	// InodesFree represents the free inodes in the filesystem.
+	// +optional
+	InodesFree *uint64 `json:"inodesFree,omitempty"`
+	// Inodes represents the total inodes in the filesystem.
+	// +optional
+	Inodes *uint64 `json:"inodes,omitempty"`
+	// InodesUsed represents the inodes used by the filesystem
+	// This may not equal Inodes - InodesFree because this filesystem may share inodes with other "filesystems"
+	// e.g. For ContainerStats.Rootfs, this is the inodes used only by that container, and does not count inodes used by other containers.
+	InodesUsed *uint64 `json:"inodesUsed,omitempty"`
+}
+
+// UserDefinedMetricType defines how the metric should be interpreted by the user.
+type UserDefinedMetricType string
+
+const (
+	// MetricGauge is an instantaneous value. May increase or decrease.
+	MetricGauge UserDefinedMetricType = "gauge"
+
+	// MetricCumulative is a counter-like value that is only expected to increase.
+	MetricCumulative UserDefinedMetricType = "cumulative"
+
+	// MetricDelta is a rate over a time period.
+	MetricDelta UserDefinedMetricType = "delta"
+)
+
+// UserDefinedMetricDescriptor contains metadata that describes a user defined metric.
+type UserDefinedMetricDescriptor struct {
+	// The name of the metric.
+	Name string `json:"name"`
+
+	// Type of the metric.
+	Type UserDefinedMetricType `json:"type"`
+
+	// Display Units for the stats.
+	Units string `json:"units"`
+
+	// Metadata labels associated with this metric.
+	// +optional
+	Labels map[string]string `json:"labels,omitempty"`
+}
+
+// UserDefinedMetric represents a metric defined and generated by users.
+type UserDefinedMetric struct {
+	UserDefinedMetricDescriptor `json:",inline"`
+	// The time at which these stats were updated.
+	Time metav1.Time `json:"time"`
+	// Value of the metric. Float64s have 53 bit precision.
+	// We do not foresee any metrics exceeding that value.
+	Value float64 `json:"value"`
+}

pkg/client/api.go

@@ -21,14 +21,14 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"path"
-	"strings"
 	"time"
 
 	"github.com/prometheus/common/model"
-	"k8s.io/klog/v2"
+	"k8s.io/klog"
 )
 
 // APIClient is a raw client to the Prometheus Query API.
@@ -47,31 +47,17 @@ type GenericAPIClient interface {
 type httpAPIClient struct {
 	client  *http.Client
 	baseURL *url.URL
-	headers http.Header
 }
 
 func (c *httpAPIClient) Do(ctx context.Context, verb, endpoint string, query url.Values) (APIResponse, error) {
 	u := *c.baseURL
 	u.Path = path.Join(c.baseURL.Path, endpoint)
-	var reqBody io.Reader
+	u.RawQuery = query.Encode()
-	if verb == http.MethodGet {
+	req, err := http.NewRequest(verb, u.String(), nil)
-		u.RawQuery = query.Encode()
-	} else if verb == http.MethodPost {
-		reqBody = strings.NewReader(query.Encode())
-	}
-
-	req, err := http.NewRequestWithContext(ctx, verb, u.String(), reqBody)
 	if err != nil {
 		return APIResponse{}, fmt.Errorf("error constructing HTTP request to Prometheus: %v", err)
 	}
-	for key, values := range c.headers {
+	req.WithContext(ctx)
-		for _, value := range values {
-			req.Header.Add(key, value)
-		}
-	}
-	if verb == http.MethodPost {
-		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	}
 
 	resp, err := c.client.Do(req)
 	defer func() {
@@ -84,7 +70,7 @@ func (c *httpAPIClient) Do(ctx context.Context, verb, endpoint string, query url
 		return APIResponse{}, err
 	}
 
-	if klog.V(6).Enabled() {
+	if klog.V(6) {
 		klog.Infof("%s %s %s", verb, u.String(), resp.Status)
 	}
 
@@ -99,8 +85,8 @@ func (c *httpAPIClient) Do(ctx context.Context, verb, endpoint string, query url
 	}
 
 	var body io.Reader = resp.Body
-	if klog.V(8).Enabled() {
+	if klog.V(8) {
-		data, err := io.ReadAll(body)
+		data, err := ioutil.ReadAll(body)
 		if err != nil {
 			return APIResponse{}, fmt.Errorf("unable to log response body: %v", err)
 		}
@@ -127,11 +113,10 @@ func (c *httpAPIClient) Do(ctx context.Context, verb, endpoint string, query url
 }
 
 // NewGenericAPIClient builds a new generic Prometheus API client for the given base URL and HTTP Client.
-func NewGenericAPIClient(client *http.Client, baseURL *url.URL, headers http.Header) GenericAPIClient {
+func NewGenericAPIClient(client *http.Client, baseURL *url.URL) GenericAPIClient {
 	return &httpAPIClient{
 		client:  client,
 		baseURL: baseURL,
-		headers: headers,
 	}
 }
 
@@ -143,22 +128,20 @@ const (
 
 // queryClient is a Client that connects to the Prometheus HTTP API.
 type queryClient struct {
-	api  GenericAPIClient
+	api GenericAPIClient
-	verb string
 }
 
 // NewClientForAPI creates a Client for the given generic Prometheus API client.
-func NewClientForAPI(client GenericAPIClient, verb string) Client {
+func NewClientForAPI(client GenericAPIClient) Client {
 	return &queryClient{
-		api:  client,
+		api: client,
-		verb: verb,
 	}
 }
 
 // NewClient creates a Client for the given HTTP client and base URL (the location of the Prometheus server).
-func NewClient(client *http.Client, baseURL *url.URL, headers http.Header, verb string) Client {
+func NewClient(client *http.Client, baseURL *url.URL) Client {
-	genericClient := NewGenericAPIClient(client, baseURL, headers)
+	genericClient := NewGenericAPIClient(client, baseURL)
-	return NewClientForAPI(genericClient, verb)
+	return NewClientForAPI(genericClient)
 }
 
 func (h *queryClient) Series(ctx context.Context, interval model.Interval, selectors ...Selector) ([]Series, error) {
@@ -174,7 +157,7 @@ func (h *queryClient) Series(ctx context.Context, interval model.Interval, selec
 		vals.Add("match[]", string(selector))
 	}
 
-	res, err := h.api.Do(ctx, h.verb, seriesURL, vals)
+	res, err := h.api.Do(ctx, "GET", seriesURL, vals)
 	if err != nil {
 		return nil, err
 	}
@@ -194,7 +177,7 @@ func (h *queryClient) Query(ctx context.Context, t model.Time, query Selector) (
 		vals.Set("timeout", model.Duration(timeout).String())
 	}
 
-	res, err := h.api.Do(ctx, h.verb, queryURL, vals)
+	res, err := h.api.Do(ctx, "GET", queryURL, vals)
 	if err != nil {
 		return QueryResult{}, err
 	}
@@ -221,7 +204,7 @@ func (h *queryClient) QueryRange(ctx context.Context, r Range, query Selector) (
 		vals.Set("timeout", model.Duration(timeout).String())
 	}
 
-	res, err := h.api.Do(ctx, h.verb, queryRangeURL, vals)
+	res, err := h.api.Do(ctx, "GET", queryRangeURL, vals)
 	if err != nil {
 		return QueryResult{}, err
 	}
@@ -235,7 +218,7 @@ func (h *queryClient) QueryRange(ctx context.Context, r Range, query Selector) (
 // when present
 func timeoutFromContext(ctx context.Context) (time.Duration, bool) {
 	if deadline, hasDeadline := ctx.Deadline(); hasDeadline {
-		return time.Since(deadline), true
+		return time.Now().Sub(deadline), true
 	}
 
 	return time.Duration(0), false

pkg/client/fake/client.go

@@ -20,9 +20,8 @@ import (
 	"context"
 	"fmt"
 
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
 	pmodel "github.com/prometheus/common/model"
-
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
 )
 
 // FakePrometheusClient is a fake instance of prom.Client

pkg/client/helpers.go

@@ -13,7 +13,6 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-
 package client
 
 import (

pkg/client/interfaces.go

@@ -13,7 +13,6 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-
 package client
 
 import (

pkg/client/metrics/metrics.go

@@ -13,51 +13,34 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-
 package metrics
 
 import (
 	"context"
-	"net/http"
 	"net/url"
 	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
 
-	apimetrics "k8s.io/apiserver/pkg/endpoints/metrics"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	"k8s.io/component-base/metrics"
-	"k8s.io/component-base/metrics/legacyregistry"
-
-	"sigs.k8s.io/prometheus-adapter/pkg/client"
 )
 
 var (
 	// queryLatency is the total latency of any query going through the
 	// various endpoints (query, range-query, series).  It includes some deserialization
 	// overhead and HTTP overhead.
-	queryLatency = metrics.NewHistogramVec(
+	queryLatency = prometheus.NewHistogramVec(
-		&metrics.HistogramOpts{
+		prometheus.HistogramOpts{
-			Namespace: "prometheus_adapter",
+			Name:    "cmgateway_prometheus_query_latency_seconds",
-			Subsystem: "prometheus_client",
+			Help:    "Prometheus client query latency in seconds.  Broken down by target prometheus endpoint and target server",
-			Name:      "request_duration_seconds",
+			Buckets: prometheus.ExponentialBuckets(0.0001, 2, 10),
-			Help:      "Prometheus client query latency in seconds.  Broken down by target prometheus endpoint and target server",
-			Buckets:   prometheus.DefBuckets,
 		},
-		[]string{"path", "server"},
+		[]string{"endpoint", "server"},
 	)
 )
 
-func MetricsHandler() (http.HandlerFunc, error) {
+func init() {
-	registry := metrics.NewKubeRegistry()
+	prometheus.MustRegister(queryLatency)
-	err := registry.Register(queryLatency)
-	if err != nil {
-		return nil, err
-	}
-	apimetrics.Register()
-	return func(w http.ResponseWriter, req *http.Request) {
-		legacyregistry.Handler().ServeHTTP(w, req)
-		metrics.HandlerFor(registry, metrics.HandlerOpts{}).ServeHTTP(w, req)
-	}, nil
 }
 
 // instrumentedClient is a client.GenericAPIClient which instruments calls to Do,
@@ -79,7 +62,7 @@ func (c *instrumentedGenericClient) Do(ctx context.Context, verb, endpoint strin
 				return
 			}
 		}
-		queryLatency.With(prometheus.Labels{"path": endpoint, "server": c.serverName}).Observe(endTime.Sub(startTime).Seconds())
+		queryLatency.With(prometheus.Labels{"endpoint": endpoint, "server": c.serverName}).Observe(endTime.Sub(startTime).Seconds())
 	}()
 
 	var resp client.APIResponse

pkg/client/types.go

@@ -25,10 +25,10 @@ type ErrorType string
 
 const (
 	ErrBadData     ErrorType = "bad_data"
-	ErrTimeout     ErrorType = "timeout"
+	ErrTimeout               = "timeout"
-	ErrCanceled    ErrorType = "canceled"
+	ErrCanceled              = "canceled"
-	ErrExec        ErrorType = "execution"
+	ErrExec                  = "execution"
-	ErrBadResponse ErrorType = "bad_response"
+	ErrBadResponse           = "bad_response"
 )
 
 // Error is an error returned by the API.
@@ -46,7 +46,7 @@ type ResponseStatus string
 
 const (
 	ResponseSucceeded ResponseStatus = "succeeded"
-	ResponseError     ResponseStatus = "error"
+	ResponseError                    = "error"
 )
 
 // APIResponse represents the raw response returned by the API.

pkg/config/config.go

@@ -9,9 +9,9 @@ type MetricsDiscoveryConfig struct {
 	// custom metrics API resources.  The rules are applied independently,
 	// and thus must be mutually exclusive.  Rules with the same SeriesQuery
 	// will make only a single API call.
-	Rules         []DiscoveryRule `json:"rules" yaml:"rules"`
+	Rules         []DiscoveryRule `yaml:"rules"`
-	ResourceRules *ResourceRules  `json:"resourceRules,omitempty" yaml:"resourceRules,omitempty"`
+	ResourceRules *ResourceRules  `yaml:"resourceRules,omitempty"`
-	ExternalRules []DiscoveryRule `json:"externalRules,omitempty" yaml:"externalRules,omitempty"`
+	ExternalRules []DiscoveryRule `yaml:"externalRules,omitempty"`
 }
 
 // DiscoveryRule describes a set of rules for transforming Prometheus metrics to/from
@@ -19,32 +19,32 @@ type MetricsDiscoveryConfig struct {
 type DiscoveryRule struct {
 	// SeriesQuery specifies which metrics this rule should consider via a Prometheus query
 	// series selector query.
-	SeriesQuery string `json:"seriesQuery" yaml:"seriesQuery"`
+	SeriesQuery string `yaml:"seriesQuery"`
 	// SeriesFilters specifies additional regular expressions to be applied on
 	// the series names returned from the query.  This is useful for constraints
 	// that can't be represented in the SeriesQuery (e.g. series matching `container_.+`
 	// not matching `container_.+_total`.  A filter will be automatically appended to
 	// match the form specified in Name.
-	SeriesFilters []RegexFilter `json:"seriesFilters" yaml:"seriesFilters"`
+	SeriesFilters []RegexFilter `yaml:"seriesFilters"`
 	// Resources specifies how associated Kubernetes resources should be discovered for
 	// the given metrics.
-	Resources ResourceMapping `json:"resources" yaml:"resources"`
+	Resources ResourceMapping `yaml:"resources"`
 	// Name specifies how the metric name should be transformed between custom metric
 	// API resources, and Prometheus metric names.
-	Name NameMapping `json:"name" yaml:"name"`
+	Name NameMapping `yaml:"name"`
 	// MetricsQuery specifies modifications to the metrics query, such as converting
 	// cumulative metrics to rate metrics.  It is a template where `.LabelMatchers` is
 	// a the comma-separated base label matchers and `.Series` is the series name, and
 	// `.GroupBy` is the comma-separated expected group-by label names. The delimeters
 	// are `<<` and `>>`.
-	MetricsQuery string `json:"metricsQuery,omitempty" yaml:"metricsQuery,omitempty"`
+	MetricsQuery string `yaml:"metricsQuery,omitempty"`
 }
 
 // RegexFilter is a filter that matches positively or negatively against a regex.
 // Only one field may be set at a time.
 type RegexFilter struct {
-	Is    string `json:"is,omitempty" yaml:"is,omitempty"`
+	Is    string `yaml:"is,omitempty"`
-	IsNot string `json:"isNot,omitempty" yaml:"isNot,omitempty"`
+	IsNot string `yaml:"isNot,omitempty"`
 }
 
 // ResourceMapping specifies how to map Kubernetes resources to Prometheus labels
@@ -54,18 +54,16 @@ type ResourceMapping struct {
 	// the `.Group` and `.Resource` fields.  The `.Group` field will have
 	// dots replaced with underscores, and the `.Resource` field will be
 	// singularized.  The delimiters are `<<` and `>>`.
-	Template string `json:"template,omitempty" yaml:"template,omitempty"`
+	Template string `yaml:"template,omitempty"`
 	// Overrides specifies exceptions to the above template, mapping label names
 	// to group-resources
-	Overrides map[string]GroupResource `json:"overrides,omitempty" yaml:"overrides,omitempty"`
+	Overrides map[string]GroupResource `yaml:"overrides,omitempty"`
-	// Namespaced ignores the source namespace of the requester and requires one in the query
-	Namespaced *bool `json:"namespaced,omitempty" yaml:"namespaced,omitempty"`
 }
 
 // GroupResource represents a Kubernetes group-resource.
 type GroupResource struct {
-	Group    string `json:"group,omitempty" yaml:"group,omitempty"`
+	Group    string `yaml:"group,omitempty"`
-	Resource string `json:"resource" yaml:"resource"`
+	Resource string `yaml:"resource"`
 }
 
 // NameMapping specifies how to convert Prometheus metrics
@@ -74,38 +72,38 @@ type NameMapping struct {
 	// Matches is a regular expression that is used to match
 	// Prometheus series names.  It may be left blank, in which
 	// case it is equivalent to `.*`.
-	Matches string `json:"matches" yaml:"matches"`
+	Matches string `yaml:"matches"`
 	// As is the name used in the API.  Captures from Matches
 	// are available for use here.  If not specified, it defaults
 	// to $0 if no capture groups are present in Matches, or $1
 	// if only one is present, and will error if multiple are.
-	As string `json:"as" yaml:"as"`
+	As string `yaml:"as"`
 }
 
 // ResourceRules describe the rules for querying resource metrics
 // API results.  It's assumed that the same metrics can be used
 // to aggregate across different resources.
 type ResourceRules struct {
-	CPU    ResourceRule `json:"cpu" yaml:"cpu"`
+	CPU    ResourceRule `yaml:"cpu"`
-	Memory ResourceRule `json:"memory" yaml:"memory"`
+	Memory ResourceRule `yaml:"memory"`
 	// Window is the window size reported by the resource metrics API.  It should match the value used
 	// in your containerQuery and nodeQuery if you use a `rate` function.
-	Window pmodel.Duration `json:"window" yaml:"window"`
+	Window pmodel.Duration `yaml:"window"`
 }
 
 // ResourceRule describes how to query metrics for some particular
 // system resource metric.
 type ResourceRule struct {
 	// Container is the query used to fetch the metrics for containers.
-	ContainerQuery string `json:"containerQuery" yaml:"containerQuery"`
+	ContainerQuery string `yaml:"containerQuery"`
 	// NodeQuery is the query used to fetch the metrics for nodes
 	// (for instance, simply aggregating by node label is insufficient for
 	// cadvisor metrics -- you need to select the `/` container).
-	NodeQuery string `json:"nodeQuery" yaml:"nodeQuery"`
+	NodeQuery string `yaml:"nodeQuery"`
 	// Resources specifies how associated Kubernetes resources should be discovered for
 	// the given metrics.
-	Resources ResourceMapping `json:"resources" yaml:"resources"`
+	Resources ResourceMapping `yaml:"resources"`
 	// ContainerLabel indicates the name of the Prometheus label containing the container name
 	// (since "container" is not a resource, this can't go in the `resources` block, but is similar).
-	ContainerLabel string `json:"containerLabel" yaml:"containerLabel"`
+	ContainerLabel string `yaml:"containerLabel"`
 }

pkg/config/loader.go

@@ -2,7 +2,7 @@ package config
 
 import (
 	"fmt"
-	"io"
+	"io/ioutil"
 	"os"
 
 	yaml "gopkg.in/yaml.v2"
@@ -11,11 +11,11 @@ import (
 // FromFile loads the configuration from a particular file.
 func FromFile(filename string) (*MetricsDiscoveryConfig, error) {
 	file, err := os.Open(filename)
+	defer file.Close()
 	if err != nil {
 		return nil, fmt.Errorf("unable to load metrics discovery config file: %v", err)
 	}
-	defer file.Close()
+	contents, err := ioutil.ReadAll(file)
-	contents, err := io.ReadAll(file)
 	if err != nil {
 		return nil, fmt.Errorf("unable to load metrics discovery config file: %v", err)
 	}

pkg/custom-provider/provider.go

@@ -19,11 +19,11 @@ package provider
 import (
 	"context"
 	"fmt"
-	"math"
 	"time"
 
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider/helpers"
 	pmodel "github.com/prometheus/common/model"
-
 	apierr "k8s.io/apimachinery/pkg/api/errors"
 	apimeta "k8s.io/apimachinery/pkg/api/meta"
 	"k8s.io/apimachinery/pkg/api/resource"
@@ -33,14 +33,11 @@ import (
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/client-go/dynamic"
-	"k8s.io/klog/v2"
+	"k8s.io/klog"
 	"k8s.io/metrics/pkg/apis/custom_metrics"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider/helpers"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
 )
 
 // Runnable represents something that can be run until told to stop.
@@ -80,41 +77,24 @@ func NewPrometheusProvider(mapper apimeta.RESTMapper, kubeClient dynamic.Interfa
 	}, lister
 }
 
-func (p *prometheusProvider) metricFor(value pmodel.SampleValue, name types.NamespacedName, info provider.CustomMetricInfo, metricSelector labels.Selector) (*custom_metrics.MetricValue, error) {
+func (p *prometheusProvider) metricFor(value pmodel.SampleValue, name types.NamespacedName, info provider.CustomMetricInfo) (*custom_metrics.MetricValue, error) {
 	ref, err := helpers.ReferenceFor(p.mapper, name, info)
 	if err != nil {
 		return nil, err
 	}
 
-	var q *resource.Quantity
+	return &custom_metrics.MetricValue{
-	if math.IsNaN(float64(value)) {
-		q = resource.NewQuantity(0, resource.DecimalSI)
-	} else {
-		q = resource.NewMilliQuantity(int64(value*1000.0), resource.DecimalSI)
-	}
-
-	metric := &custom_metrics.MetricValue{
 		DescribedObject: ref,
 		Metric: custom_metrics.MetricIdentifier{
 			Name: info.Metric,
 		},
 		// TODO(directxman12): use the right timestamp
-		Timestamp: metav1.Time{Time: time.Now()},
+		Timestamp: metav1.Time{time.Now()},
-		Value:     *q,
+		Value:     *resource.NewMilliQuantity(int64(value*1000.0), resource.DecimalSI),
-	}
+	}, nil
-
-	if !metricSelector.Empty() {
-		sel, err := metav1.ParseToLabelSelector(metricSelector.String())
-		if err != nil {
-			return nil, err
-		}
-		metric.Metric.Selector = sel
-	}
-
-	return metric, nil
 }
 
-func (p *prometheusProvider) metricsFor(valueSet pmodel.Vector, namespace string, names []string, info provider.CustomMetricInfo, metricSelector labels.Selector) (*custom_metrics.MetricValueList, error) {
+func (p *prometheusProvider) metricsFor(valueSet pmodel.Vector, info provider.CustomMetricInfo, namespace string, names []string) (*custom_metrics.MetricValueList, error) {
 	values, found := p.MatchValuesToNames(info, valueSet)
 	if !found {
 		return nil, provider.NewMetricNotFoundError(info.GroupResource, info.Metric)
@@ -126,7 +106,7 @@ func (p *prometheusProvider) metricsFor(valueSet pmodel.Vector, namespace string
 			continue
 		}
 
-		value, err := p.metricFor(values[name], types.NamespacedName{Namespace: namespace, Name: name}, info, metricSelector)
+		value, err := p.metricFor(values[name], types.NamespacedName{Namespace: namespace, Name: name}, info)
 		if err != nil {
 			return nil, err
 		}
@@ -138,14 +118,14 @@ func (p *prometheusProvider) metricsFor(valueSet pmodel.Vector, namespace string
 	}, nil
 }
 
-func (p *prometheusProvider) buildQuery(ctx context.Context, info provider.CustomMetricInfo, namespace string, metricSelector labels.Selector, names ...string) (pmodel.Vector, error) {
+func (p *prometheusProvider) buildQuery(info provider.CustomMetricInfo, namespace string, metricSelector labels.Selector, names ...string) (pmodel.Vector, error) {
 	query, found := p.QueryForMetric(info, namespace, metricSelector, names...)
 	if !found {
 		return nil, provider.NewMetricNotFoundError(info.GroupResource, info.Metric)
 	}
 
 	// TODO: use an actual context
-	queryResults, err := p.promClient.Query(ctx, pmodel.Now(), query)
+	queryResults, err := p.promClient.Query(context.TODO(), pmodel.Now(), query)
 	if err != nil {
 		klog.Errorf("unable to fetch metrics from prometheus: %v", err)
 		// don't leak implementation details to the user
@@ -160,9 +140,9 @@ func (p *prometheusProvider) buildQuery(ctx context.Context, info provider.Custo
 	return *queryResults.Vector, nil
 }
 
-func (p *prometheusProvider) GetMetricByName(ctx context.Context, name types.NamespacedName, info provider.CustomMetricInfo, metricSelector labels.Selector) (*custom_metrics.MetricValue, error) {
+func (p *prometheusProvider) GetMetricByName(name types.NamespacedName, info provider.CustomMetricInfo, metricSelector labels.Selector) (*custom_metrics.MetricValue, error) {
 	// construct a query
-	queryResults, err := p.buildQuery(ctx, info, name.Namespace, metricSelector, name.Name)
+	queryResults, err := p.buildQuery(info, name.Namespace, metricSelector, name.Name)
 	if err != nil {
 		return nil, err
 	}
@@ -188,10 +168,10 @@ func (p *prometheusProvider) GetMetricByName(ctx context.Context, name types.Nam
 	}
 
 	// return the resulting metric
-	return p.metricFor(resultValue, name, info, metricSelector)
+	return p.metricFor(resultValue, name, info)
 }
 
-func (p *prometheusProvider) GetMetricBySelector(ctx context.Context, namespace string, selector labels.Selector, info provider.CustomMetricInfo, metricSelector labels.Selector) (*custom_metrics.MetricValueList, error) {
+func (p *prometheusProvider) GetMetricBySelector(namespace string, selector labels.Selector, info provider.CustomMetricInfo, metricSelector labels.Selector) (*custom_metrics.MetricValueList, error) {
 	// fetch a list of relevant resource names
 	resourceNames, err := helpers.ListObjectNames(p.mapper, p.kubeClient, namespace, selector, info)
 	if err != nil {
@@ -201,13 +181,13 @@ func (p *prometheusProvider) GetMetricBySelector(ctx context.Context, namespace
 	}
 
 	// construct the actual query
-	queryResults, err := p.buildQuery(ctx, info, namespace, metricSelector, resourceNames...)
+	queryResults, err := p.buildQuery(info, namespace, metricSelector, resourceNames...)
 	if err != nil {
 		return nil, err
 	}
 
 	// return the resulting metrics
-	return p.metricsFor(queryResults, namespace, resourceNames, info, metricSelector)
+	return p.metricsFor(queryResults, info, namespace, resourceNames)
 }
 
 type cachingMetricsLister struct {
@@ -256,7 +236,7 @@ func (l *cachingMetricsLister) updateMetrics() error {
 		}
 		selectors[sel] = struct{}{}
 		go func() {
-			series, err := l.promClient.Series(context.TODO(), pmodel.Interval{Start: startTime, End: 0}, sel)
+			series, err := l.promClient.Series(context.TODO(), pmodel.Interval{startTime, 0}, sel)
 			if err != nil {
 				errs <- fmt.Errorf("unable to fetch metrics for query %q: %v", sel, err)
 				return

pkg/custom-provider/provider_test.go

@@ -19,19 +19,17 @@ package provider
 import (
 	"time"
 
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-	pmodel "github.com/prometheus/common/model"
-
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	fakedyn "k8s.io/client-go/dynamic/fake"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	config "github.com/directxman12/k8s-prometheus-adapter/cmd/config-gen/utils"
-
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	config "sigs.k8s.io/prometheus-adapter/cmd/config-gen/utils"
+	fakeprom "github.com/directxman12/k8s-prometheus-adapter/pkg/client/fake"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-	fakeprom "sigs.k8s.io/prometheus-adapter/pkg/client/fake"
+	pmodel "github.com/prometheus/common/model"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
 )
 
 const fakeProviderUpdateInterval = 2 * time.Second
@@ -47,13 +45,13 @@ func setupPrometheusProvider() (provider.CustomMetricsProvider, *fakeprom.FakePr
 
 	prov, _ := NewPrometheusProvider(restMapper(), fakeKubeClient, fakeProm, namers, fakeProviderUpdateInterval, fakeProviderStartDuration)
 
-	containerSel := prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod", ""))
+	containerSel := prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))
 	namespacedSel := prom.MatchSeries("", prom.LabelNeq("namespace", ""), prom.NameNotMatches("^container_.*"))
 	fakeProm.SeriesResults = map[prom.Selector][]prom.Series{
 		containerSel: {
 			{
 				Name:   "container_some_usage",
-				Labels: pmodel.LabelSet{"pod": "somepod", "namespace": "somens", "container": "somecont"},
+				Labels: pmodel.LabelSet{"pod_name": "somepod", "namespace": "somens", "container_name": "somecont"},
 			},
 		},
 		namespacedSel: {
@@ -87,7 +85,7 @@ var _ = Describe("Custom Metrics Provider", func() {
 		By("ensuring that no metrics are present before we start listing")
 		Expect(prov.ListAllMetrics()).To(BeEmpty())
 
-		By("setting the acceptable interval to now until the next update, with a bit of wiggle room")
+		By("setting the acceptible interval to now until the next update, with a bit of wiggle room")
 		startTime := pmodel.Now().Add(-1*fakeProviderUpdateInterval - fakeProviderUpdateInterval/10)
 		fakeProm.AcceptableInterval = pmodel.Interval{Start: startTime, End: 0}
 
@@ -98,16 +96,16 @@ var _ = Describe("Custom Metrics Provider", func() {
 
 		By("listing all metrics, and checking that they contain the expected results")
 		Expect(prov.ListAllMetrics()).To(ConsistOf(
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "services"}, Namespaced: true, Metric: "ingress_hits"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "services"}, true, "ingress_hits"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "ingresses"}, Namespaced: true, Metric: "ingress_hits"},
+			provider.CustomMetricInfo{schema.GroupResource{Group: "extensions", Resource: "ingresses"}, true, "ingress_hits"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "ingress_hits"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "ingress_hits"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "ingress_hits"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "ingress_hits"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "services"}, Namespaced: true, Metric: "service_proxy_packets"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "services"}, true, "service_proxy_packets"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "service_proxy_packets"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "service_proxy_packets"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "deployments"}, Namespaced: true, Metric: "work_queue_wait"},
+			provider.CustomMetricInfo{schema.GroupResource{Group: "extensions", Resource: "deployments"}, true, "work_queue_wait"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "work_queue_wait"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "work_queue_wait"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "some_usage"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "some_usage"},
-			provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_usage"},
+			provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_usage"},
 		))
 	})
 })

pkg/custom-provider/series_registry.go

@@ -20,16 +20,14 @@ import (
 	"fmt"
 	"sync"
 
-	pmodel "github.com/prometheus/common/model"
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
-
 	apimeta "k8s.io/apimachinery/pkg/api/meta"
 	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/klog/v2"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	pmodel "github.com/prometheus/common/model"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
+	"k8s.io/klog"
 )
 
 // NB: container metrics sourced from cAdvisor don't consistently follow naming conventions,

pkg/custom-provider/series_registry_test.go

@@ -20,11 +20,10 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
-
 	pmodel "github.com/prometheus/common/model"
-
 	coreapi "k8s.io/api/core/v1"
 	extapi "k8s.io/api/extensions/v1beta1"
 	apimeta "k8s.io/apimachinery/pkg/api/meta"
@@ -32,11 +31,9 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/selection"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	config "github.com/directxman12/k8s-prometheus-adapter/cmd/config-gen/utils"
-
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	config "sigs.k8s.io/prometheus-adapter/cmd/config-gen/utils"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
 )
 
 // restMapper creates a RESTMapper with just the types we need for
@@ -68,23 +65,23 @@ var seriesRegistryTestSeries = [][]prom.Series{
 	{
 		{
 			Name:   "container_some_time_seconds_total",
-			Labels: pmodel.LabelSet{"pod": "somepod", "namespace": "somens", "container": "somecont"},
+			Labels: pmodel.LabelSet{"pod_name": "somepod", "namespace": "somens", "container_name": "somecont"},
 		},
 	},
 	{
 		{
 			Name:   "container_some_count_total",
-			Labels: pmodel.LabelSet{"pod": "somepod", "namespace": "somens", "container": "somecont"},
+			Labels: pmodel.LabelSet{"pod_name": "somepod", "namespace": "somens", "container_name": "somecont"},
 		},
 	},
 	{
 		{
 			Name:   "container_some_usage",
-			Labels: pmodel.LabelSet{"pod": "somepod", "namespace": "somens", "container": "somecont"},
+			Labels: pmodel.LabelSet{"pod_name": "somepod", "namespace": "somens", "container_name": "somecont"},
 		},
 	},
 	{
-		// gauge metrics
+		// guage metrics
 		{
 			Name:   "node_gigawatts",
 			Labels: pmodel.LabelSet{"kube_node": "somenode"},
@@ -159,35 +156,35 @@ var _ = Describe("Series Registry", func() {
 			// container metrics
 			{
 				title:          "container metrics gauge / multiple resource names",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_usage"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_usage"},
 				namespace:      "somens",
 				resourceNames:  []string{"somepod1", "somepod2"},
 				metricSelector: labels.Everything(),
 
-				expectedQuery: "sum(container_some_usage{namespace=\"somens\",pod=~\"somepod1|somepod2\",container!=\"POD\"}) by (pod)",
+				expectedQuery: "sum(container_some_usage{namespace=\"somens\",pod_name=~\"somepod1|somepod2\",container_name!=\"POD\"}) by (pod_name)",
 			},
 			{
 				title:          "container metrics counter",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_count"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_count"},
 				namespace:      "somens",
 				resourceNames:  []string{"somepod1", "somepod2"},
 				metricSelector: labels.Everything(),
 
-				expectedQuery: "sum(rate(container_some_count_total{namespace=\"somens\",pod=~\"somepod1|somepod2\",container!=\"POD\"}[1m])) by (pod)",
+				expectedQuery: "sum(rate(container_some_count_total{namespace=\"somens\",pod_name=~\"somepod1|somepod2\",container_name!=\"POD\"}[1m])) by (pod_name)",
 			},
 			{
 				title:          "container metrics seconds counter",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_time"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_time"},
 				namespace:      "somens",
 				resourceNames:  []string{"somepod1", "somepod2"},
 				metricSelector: labels.Everything(),
 
-				expectedQuery: "sum(rate(container_some_time_seconds_total{namespace=\"somens\",pod=~\"somepod1|somepod2\",container!=\"POD\"}[1m])) by (pod)",
+				expectedQuery: "sum(rate(container_some_time_seconds_total{namespace=\"somens\",pod_name=~\"somepod1|somepod2\",container_name!=\"POD\"}[1m])) by (pod_name)",
 			},
 			// namespaced metrics
 			{
 				title:          "namespaced metrics counter / multidimensional (service)",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "service"}, Namespaced: true, Metric: "ingress_hits"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "service"}, true, "ingress_hits"},
 				namespace:      "somens",
 				resourceNames:  []string{"somesvc"},
 				metricSelector: labels.Everything(),
@@ -196,7 +193,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:         "namespaced metrics counter /  multidimensional (service) / selection using labels",
-				info:          provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "service"}, Namespaced: true, Metric: "ingress_hits"},
+				info:          provider.CustomMetricInfo{schema.GroupResource{Resource: "service"}, true, "ingress_hits"},
 				namespace:     "somens",
 				resourceNames: []string{"somesvc"},
 				metricSelector: labels.NewSelector().Add(
@@ -206,7 +203,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:          "namespaced metrics counter / multidimensional (ingress)",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "ingress"}, Namespaced: true, Metric: "ingress_hits"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Group: "extensions", Resource: "ingress"}, true, "ingress_hits"},
 				namespace:      "somens",
 				resourceNames:  []string{"someingress"},
 				metricSelector: labels.Everything(),
@@ -215,7 +212,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:          "namespaced metrics counter / multidimensional (pod)",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pod"}, Namespaced: true, Metric: "ingress_hits"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "pod"}, true, "ingress_hits"},
 				namespace:      "somens",
 				resourceNames:  []string{"somepod"},
 				metricSelector: labels.Everything(),
@@ -224,7 +221,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:          "namespaced metrics gauge",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "service"}, Namespaced: true, Metric: "service_proxy_packets"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "service"}, true, "service_proxy_packets"},
 				namespace:      "somens",
 				resourceNames:  []string{"somesvc"},
 				metricSelector: labels.Everything(),
@@ -233,7 +230,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:          "namespaced metrics seconds counter",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "deployment"}, Namespaced: true, Metric: "work_queue_wait"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Group: "extensions", Resource: "deployment"}, true, "work_queue_wait"},
 				namespace:      "somens",
 				resourceNames:  []string{"somedep"},
 				metricSelector: labels.Everything(),
@@ -243,7 +240,7 @@ var _ = Describe("Series Registry", func() {
 			// non-namespaced series
 			{
 				title:          "root scoped metrics gauge",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "node"}, Namespaced: false, Metric: "node_gigawatts"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "node"}, false, "node_gigawatts"},
 				resourceNames:  []string{"somenode"},
 				metricSelector: labels.Everything(),
 
@@ -251,7 +248,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:          "root scoped metrics counter",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "persistentvolume"}, Namespaced: false, Metric: "volume_claims"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "persistentvolume"}, false, "volume_claims"},
 				resourceNames:  []string{"somepv"},
 				metricSelector: labels.Everything(),
 
@@ -259,7 +256,7 @@ var _ = Describe("Series Registry", func() {
 			},
 			{
 				title:          "root scoped metrics seconds counter",
-				info:           provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "node"}, Namespaced: false, Metric: "node_fan"},
+				info:           provider.CustomMetricInfo{schema.GroupResource{Resource: "node"}, false, "node_fan"},
 				resourceNames:  []string{"somenode"},
 				metricSelector: labels.Everything(),
 
@@ -281,23 +278,23 @@ var _ = Describe("Series Registry", func() {
 
 		It("should list all metrics", func() {
 			Expect(registry.ListAllMetrics()).To(ConsistOf(
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_count"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_count"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "some_count"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "some_count"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_time"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_time"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "some_time"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "some_time"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_usage"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "some_usage"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "some_usage"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "some_usage"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "services"}, Namespaced: true, Metric: "ingress_hits"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "services"}, true, "ingress_hits"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "ingresses"}, Namespaced: true, Metric: "ingress_hits"},
+				provider.CustomMetricInfo{schema.GroupResource{Group: "extensions", Resource: "ingresses"}, true, "ingress_hits"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "ingress_hits"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "pods"}, true, "ingress_hits"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "ingress_hits"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "ingress_hits"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "services"}, Namespaced: true, Metric: "service_proxy_packets"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "services"}, true, "service_proxy_packets"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "service_proxy_packets"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "service_proxy_packets"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "deployments"}, Namespaced: true, Metric: "work_queue_wait"},
+				provider.CustomMetricInfo{schema.GroupResource{Group: "extensions", Resource: "deployments"}, true, "work_queue_wait"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "work_queue_wait"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "namespaces"}, false, "work_queue_wait"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "nodes"}, Namespaced: false, Metric: "node_gigawatts"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "nodes"}, false, "node_gigawatts"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "persistentvolumes"}, Namespaced: false, Metric: "volume_claims"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "persistentvolumes"}, false, "volume_claims"},
-				provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "nodes"}, Namespaced: false, Metric: "node_fan"},
+				provider.CustomMetricInfo{schema.GroupResource{Resource: "nodes"}, false, "node_fan"},
 			))
 		})
 	})

pkg/external-provider/basic_metric_lister.go

@@ -21,12 +21,11 @@ import (
 	"fmt"
 	"time"
 
-	"k8s.io/klog/v2"
-
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
-
 	pmodel "github.com/prometheus/common/model"
+	"k8s.io/klog"
+
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
 )
 
 // Runnable represents something that can be run until told to stop.
@@ -100,7 +99,7 @@ func (l *basicMetricLister) ListAllMetrics() (MetricUpdateResult, error) {
 		}
 		selectors[sel] = struct{}{}
 		go func() {
-			series, err := l.promClient.Series(context.TODO(), pmodel.Interval{Start: startTime, End: 0}, sel)
+			series, err := l.promClient.Series(context.TODO(), pmodel.Interval{startTime, 0}, sel)
 			if err != nil {
 				errs <- fmt.Errorf("unable to fetch metrics for query %q: %v", sel, err)
 				return

pkg/external-provider/external_series_registry.go

@@ -16,13 +16,12 @@ package provider
 import (
 	"sync"
 
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
 	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/klog/v2"
+	"k8s.io/klog"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
 )
 
 // ExternalSeriesRegistry acts as the top-level converter for transforming Kubernetes requests
@@ -103,6 +102,7 @@ func (r *externalSeriesRegistry) filterAndStoreMetrics(result MetricUpdateResult
 
 	r.metrics = apiMetricsCache
 	r.metricsInfo = rawMetricsCache
+
 }
 
 func (r *externalSeriesRegistry) ListAllMetrics() []provider.ExternalMetricInfo {

pkg/external-provider/metric_converter.go

@@ -17,15 +17,12 @@ import (
 	"errors"
 	"fmt"
 
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
 	"github.com/prometheus/common/model"
-
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/metrics/pkg/apis/external_metrics"
-
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
-
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
 )
 
 // MetricConverter provides a unified interface for converting the results of
@@ -61,7 +58,7 @@ func (c *metricConverter) convertSample(info provider.ExternalMetricInfo, sample
 	singleMetric := external_metrics.ExternalMetricValue{
 		MetricName: info.Metric,
 		Timestamp: metav1.Time{
-			Time: sample.Timestamp.Time(),
+			sample.Timestamp.Time(),
 		},
 		Value:        *resource.NewMilliQuantity(int64(sample.Value*1000.0), resource.DecimalSI),
 		MetricLabels: labels,
@@ -133,7 +130,7 @@ func (c *metricConverter) convertScalar(info provider.ExternalMetricInfo, queryR
 			{
 				MetricName: info.Metric,
 				Timestamp: metav1.Time{
-					Time: toConvert.Timestamp.Time(),
+					toConvert.Timestamp.Time(),
 				},
 				Value: *resource.NewMilliQuantity(int64(toConvert.Value*1000.0), resource.DecimalSI),
 			},

pkg/external-provider/periodic_metric_lister.go

@@ -69,9 +69,9 @@ func (l *periodicMetricLister) updateMetrics() error {
 		return err
 	}
 
-	// Cache the result.
+	//Cache the result.
 	l.mostRecentResult = result
-	// Let our listeners know we've got new data ready for them.
+	//Let our listeners know we've got new data ready for them.
 	l.notifyListeners()
 	return nil
 }
@@ -85,7 +85,5 @@ func (l *periodicMetricLister) notifyListeners() {
 }
 
 func (l *periodicMetricLister) UpdateNow() {
-	if err := l.updateMetrics(); err != nil {
+	l.updateMetrics()
-		utilruntime.HandleError(err)
-	}
 }

pkg/external-provider/periodic_metric_lister_test.go

@@ -17,8 +17,7 @@ import (
 	"testing"
 	"time"
 
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-
 	"github.com/stretchr/testify/require"
 )
 

pkg/external-provider/provider.go

@@ -18,18 +18,19 @@ import (
 	"fmt"
 	"time"
 
+	"k8s.io/apimachinery/pkg/runtime/schema"
+
 	pmodel "github.com/prometheus/common/model"
+	"k8s.io/klog"
+
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
 
 	apierr "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/apimachinery/pkg/runtime/schema"
-	"k8s.io/klog/v2"
 	"k8s.io/metrics/pkg/apis/external_metrics"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
 )
 
 type externalPrometheusProvider struct {
@@ -39,7 +40,7 @@ type externalPrometheusProvider struct {
 	seriesRegistry ExternalSeriesRegistry
 }
 
-func (p *externalPrometheusProvider) GetExternalMetric(ctx context.Context, namespace string, metricSelector labels.Selector, info provider.ExternalMetricInfo) (*external_metrics.ExternalMetricValueList, error) {
+func (p *externalPrometheusProvider) GetExternalMetric(namespace string, metricSelector labels.Selector, info provider.ExternalMetricInfo) (*external_metrics.ExternalMetricValueList, error) {
 	selector, found, err := p.seriesRegistry.QueryForMetric(namespace, info.Metric, metricSelector)
 
 	if err != nil {
@@ -51,7 +52,7 @@ func (p *externalPrometheusProvider) GetExternalMetric(ctx context.Context, name
 		return nil, provider.NewMetricNotFoundError(p.selectGroupResource(namespace), info.Metric)
 	}
 	// Here is where we're making the query, need to be before here xD
-	queryResults, err := p.promClient.Query(ctx, pmodel.Now(), selector)
+	queryResults, err := p.promClient.Query(context.TODO(), pmodel.Now(), selector)
 
 	if err != nil {
 		klog.Errorf("unable to fetch metrics from prometheus: %v", err)
@@ -77,9 +78,9 @@ func (p *externalPrometheusProvider) selectGroupResource(namespace string) schem
 }
 
 // NewExternalPrometheusProvider creates an ExternalMetricsProvider capable of responding to Kubernetes requests for external metric data
-func NewExternalPrometheusProvider(promClient prom.Client, namers []naming.MetricNamer, updateInterval time.Duration, maxAge time.Duration) (provider.ExternalMetricsProvider, Runnable) {
+func NewExternalPrometheusProvider(promClient prom.Client, namers []naming.MetricNamer, updateInterval time.Duration) (provider.ExternalMetricsProvider, Runnable) {
 	metricConverter := NewMetricConverter()
-	basicLister := NewBasicMetricLister(promClient, namers, maxAge)
+	basicLister := NewBasicMetricLister(promClient, namers, updateInterval)
 	periodicLister, _ := NewPeriodicMetricLister(basicLister, updateInterval)
 	seriesRegistry := NewExternalSeriesRegistry(periodicLister)
 	return &externalPrometheusProvider{

pkg/naming/lbl_res.go

@@ -22,6 +22,7 @@ import (
 	"regexp"
 	"text/template"
 
+	apimeta "k8s.io/apimachinery/pkg/api/meta"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	pmodel "github.com/prometheus/common/model"
@@ -33,6 +34,7 @@ type labelGroupResExtractor struct {
 
 	resourceInd int
 	groupInd    *int
+	mapper      apimeta.RESTMapper
 }
 
 // newLabelGroupResExtractor creates a new labelGroupResExtractor for labels whose form
@@ -40,10 +42,7 @@ type labelGroupResExtractor struct {
 // so anything in the template which limits resource or group name length will cause issues.
 func newLabelGroupResExtractor(labelTemplate *template.Template) (*labelGroupResExtractor, error) {
 	labelRegexBuff := new(bytes.Buffer)
-	if err := labelTemplate.Execute(labelRegexBuff, schema.GroupResource{
+	if err := labelTemplate.Execute(labelRegexBuff, schema.GroupResource{"(?P<group>.+?)", "(?P<resource>.+?)"}); err != nil {
-		Group:    "(?P<group>.+?)",
-		Resource: "(?P<resource>.+?)"},
-	); err != nil {
 		return nil, fmt.Errorf("unable to convert label template to matcher: %v", err)
 	}
 	if labelRegexBuff.Len() == 0 {

pkg/naming/metric_namer.go

@@ -24,8 +24,8 @@ import (
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/config"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/config"
 )
 
 // MetricNamer knows how to convert Prometheus series names and label names to
@@ -131,6 +131,8 @@ func (n *metricNamer) QueryForSeries(series string, resource schema.GroupResourc
 }
 
 func (n *metricNamer) QueryForExternalSeries(series string, namespace string, metricSelector labels.Selector) (prom.Selector, error) {
+	//test := prom.Selector()
+	//return test, nil
 	return n.metricsQuery.BuildExternal(series, namespace, "", []string{}, metricSelector)
 }
 
@@ -153,13 +155,7 @@ func NamersFromConfig(cfg []config.DiscoveryRule, mapper apimeta.RESTMapper) ([]
 			return nil, err
 		}
 
-		// queries are namespaced by default unless the rule specifically disables it
+		metricsQuery, err := NewMetricsQuery(rule.MetricsQuery, resConv)
-		namespaced := true
-		if rule.Resources.Namespaced != nil {
-			namespaced = *rule.Resources.Namespaced
-		}
-
-		metricsQuery, err := NewExternalMetricsQuery(rule.MetricsQuery, resConv, namespaced)
 		if err != nil {
 			return nil, fmt.Errorf("unable to construct metrics query associated with series query %q: %v", rule.SeriesQuery, err)
 		}
@@ -194,14 +190,13 @@ func NamersFromConfig(cfg []config.DiscoveryRule, mapper apimeta.RESTMapper) ([]
 		if nameAs == "" {
 			// check if we have an obvious default
 			subexpNames := nameMatches.SubexpNames()
-			switch len(subexpNames) {
+			if len(subexpNames) == 1 {
-			case 1:
 				// no capture groups, use the whole thing
 				nameAs = "$0"
-			case 2:
+			} else if len(subexpNames) == 2 {
 				// one capture group, use that
 				nameAs = "$1"
-			default:
+			} else {
 				return nil, fmt.Errorf("must specify an 'as' value for name matcher %q associated with series query %q", rule.Name.Matches, rule.SeriesQuery)
 			}
 		}

pkg/naming/metrics_query.go

@@ -27,7 +27,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/selection"
 
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
 )
 
 // MetricsQuery represents a compiled metrics query for some set of
@@ -59,27 +59,6 @@ func NewMetricsQuery(queryTemplate string, resourceConverter ResourceConverter)
 	return &metricsQuery{
 		resConverter: resourceConverter,
 		template:     templ,
-		namespaced:   true,
-	}, nil
-}
-
-// NewExternalMetricsQuery constructs a new MetricsQuery by compiling the given Go template.
-// The delimiters on the template are `<<` and `>>`, and it may use the following fields:
-// - Series: the series in question
-// - LabelMatchers: a pre-stringified form of the label matchers for the resources in the query
-// - LabelMatchersByName: the raw map-form of the above matchers
-// - GroupBy: the group-by clause to use for the resources in the query (stringified)
-// - GroupBySlice: the raw slice form of the above group-by clause
-func NewExternalMetricsQuery(queryTemplate string, resourceConverter ResourceConverter, namespaced bool) (MetricsQuery, error) {
-	templ, err := template.New("metrics-query").Delims("<<", ">>").Parse(queryTemplate)
-	if err != nil {
-		return nil, fmt.Errorf("unable to parse metrics query template %q: %v", queryTemplate, err)
-	}
-
-	return &metricsQuery{
-		resConverter: resourceConverter,
-		template:     templ,
-		namespaced:   namespaced,
 	}, nil
 }
 
@@ -89,7 +68,6 @@ func NewExternalMetricsQuery(queryTemplate string, resourceConverter ResourceCon
 type metricsQuery struct {
 	resConverter ResourceConverter
 	template     *template.Template
-	namespaced   bool
 }
 
 // queryTemplateArgs contains the arguments for the template used in metricsQuery.
@@ -172,7 +150,7 @@ func (q *metricsQuery) BuildExternal(seriesName string, namespace string, groupB
 	// Build up the query parts from the selector.
 	queryParts = append(queryParts, q.createQueryPartsFromSelector(metricSelector)...)
 
-	if q.namespaced && namespace != "" {
+	if namespace != "" {
 		namespaceLbl, err := q.resConverter.LabelForResource(NsGroupResource)
 		if err != nil {
 			return "", err
@@ -283,8 +261,9 @@ func (q *metricsQuery) processQueryParts(queryParts []queryPart) ([]string, map[
 }
 
 func (q *metricsQuery) selectMatcher(operator selection.Operator, values []string) (func(string, string) string, error) {
-	switch len(values) {
+
-	case 0:
+	numValues := len(values)
+	if numValues == 0 {
 		switch operator {
 		case selection.Exists:
 			return prom.LabelNeq, nil
@@ -293,7 +272,7 @@ func (q *metricsQuery) selectMatcher(operator selection.Operator, values []strin
 		case selection.Equals, selection.DoubleEquals, selection.NotEquals, selection.In, selection.NotIn:
 			return nil, ErrMalformedQuery
 		}
-	case 1:
+	} else if numValues == 1 {
 		switch operator {
 		case selection.Equals, selection.DoubleEquals:
 			return prom.LabelEq, nil
@@ -304,7 +283,7 @@ func (q *metricsQuery) selectMatcher(operator selection.Operator, values []strin
 		case selection.DoesNotExist, selection.NotIn:
 			return prom.LabelNotMatches, nil
 		}
-	default:
+	} else {
 		// Since labels can only have one value, providing multiple
 		// values results in a regex match, even if that's not what the user
 		// asked for.
@@ -320,8 +299,8 @@ func (q *metricsQuery) selectMatcher(operator selection.Operator, values []strin
 }
 
 func (q *metricsQuery) selectTargetValue(operator selection.Operator, values []string) (string, error) {
-	switch len(values) {
+	numValues := len(values)
-	case 0:
+	if numValues == 0 {
 		switch operator {
 		case selection.Exists, selection.DoesNotExist:
 			// Return an empty string when values are equal to 0
@@ -333,7 +312,7 @@ func (q *metricsQuery) selectTargetValue(operator selection.Operator, values []s
 		case selection.Equals, selection.DoubleEquals, selection.NotEquals, selection.In, selection.NotIn:
 			return "", ErrMalformedQuery
 		}
-	case 1:
+	} else if numValues == 1 {
 		switch operator {
 		case selection.Equals, selection.DoubleEquals, selection.NotEquals, selection.In, selection.NotIn:
 			// Pass the value through as-is.
@@ -346,7 +325,7 @@ func (q *metricsQuery) selectTargetValue(operator selection.Operator, values []s
 		case selection.Exists, selection.DoesNotExist:
 			return "", ErrQueryUnsupportedValues
 		}
-	default:
+	} else {
 		switch operator {
 		case selection.Equals, selection.DoubleEquals, selection.NotEquals, selection.In, selection.NotIn:
 			// Pass the value through as-is.

pkg/naming/metrics_query_test.go

@@ -20,13 +20,11 @@ import (
 	"fmt"
 	"testing"
 
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
+	pmodel "github.com/prometheus/common/model"
 	labels "k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/selection"
-
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-
-	pmodel "github.com/prometheus/common/model"
 )
 
 type resourceConverterMock struct {
@@ -274,15 +272,7 @@ func TestBuildSelector(t *testing.T) {
 
 func TestBuildExternalSelector(t *testing.T) {
 	mustNewQuery := func(queryTemplate string) MetricsQuery {
-		mq, err := NewExternalMetricsQuery(queryTemplate, &resourceConverterMock{true}, true)
+		mq, err := NewMetricsQuery(queryTemplate, &resourceConverterMock{true})
-		if err != nil {
-			t.Fatal(err)
-		}
-		return mq
-	}
-
-	mustNewNonNamespacedQuery := func(queryTemplate string) MetricsQuery {
-		mq, err := NewExternalMetricsQuery(queryTemplate, &resourceConverterMock{true}, false)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -358,19 +348,6 @@ func TestBuildExternalSelector(t *testing.T) {
 				hasSelector("default [foo bar]"),
 			),
 		},
-		{
-			name: "multiple GroupBySlice values with namespace disabled",
-
-			mq:             mustNewNonNamespacedQuery(`<<index .LabelValuesByName "namespaces">> <<.GroupBySlice>>`),
-			namespace:      "default",
-			groupBySlice:   []string{"foo", "bar"},
-			metricSelector: labels.NewSelector(),
-
-			check: checks(
-				hasError(nil),
-				hasSelector(" [foo bar]"),
-			),
-		},
 		{
 			name: "single LabelMatchers value",
 

pkg/naming/regex_matcher_test.go

@@ -21,7 +21,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"sigs.k8s.io/prometheus-adapter/pkg/config"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/config"
 )
 
 func TestReMatcherIs(t *testing.T) {

pkg/naming/resource_converter.go

@@ -23,16 +23,14 @@ import (
 	"sync"
 	"text/template"
 
-	pmodel "github.com/prometheus/common/model"
-
 	apimeta "k8s.io/apimachinery/pkg/api/meta"
 	"k8s.io/apimachinery/pkg/runtime/schema"
-	"k8s.io/klog/v2"
 
-	"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/config"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
+	"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
-	"sigs.k8s.io/prometheus-adapter/pkg/config"
+	pmodel "github.com/prometheus/common/model"
+	"k8s.io/klog"
 )
 
 var (

pkg/resourceprovider/provider.go

@@ -19,30 +19,28 @@ package resourceprovider
 import (
 	"context"
 	"fmt"
-	"math"
 	"sync"
 	"time"
 
 	corev1 "k8s.io/api/core/v1"
 	apimeta "k8s.io/apimachinery/pkg/api/meta"
 	"k8s.io/apimachinery/pkg/api/resource"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime/schema"
-	"k8s.io/klog/v2"
+	apitypes "k8s.io/apimachinery/pkg/types"
+	"k8s.io/klog"
 	metrics "k8s.io/metrics/pkg/apis/metrics"
-
 	"sigs.k8s.io/metrics-server/pkg/api"
 
-	"sigs.k8s.io/prometheus-adapter/pkg/client"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/client"
-	"sigs.k8s.io/prometheus-adapter/pkg/config"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/config"
-	"sigs.k8s.io/prometheus-adapter/pkg/naming"
+	"github.com/directxman12/k8s-prometheus-adapter/pkg/naming"
-
 	pmodel "github.com/prometheus/common/model"
 )
 
 var (
 	nodeResource = schema.GroupResource{Resource: "nodes"}
+	nsResource   = schema.GroupResource{Resource: "ns"}
 	podResource  = schema.GroupResource{Resource: "pods"}
 )
 
@@ -71,6 +69,7 @@ func newResourceQuery(cfg config.ResourceRule, mapper apimeta.RESTMapper) (resou
 		nodeQuery:      nodeQuery,
 		containerLabel: cfg.ContainerLabel,
 	}, nil
+
 }
 
 // resourceQuery represents query information for querying resource metrics for some resource,
@@ -120,12 +119,10 @@ type nsQueryResults struct {
 	err       error
 }
 
-// GetPodMetrics implements the api.MetricsProvider interface.
+// GetContainerMetrics implements the api.MetricsProvider interface. It may return nil, nil, nil.
-func (p *resourceProvider) GetPodMetrics(pods ...*metav1.PartialObjectMetadata) ([]metrics.PodMetrics, error) {
+func (p *resourceProvider) GetContainerMetrics(pods ...apitypes.NamespacedName) ([]api.TimeInfo, [][]metrics.ContainerMetrics, error) {
-	resMetrics := make([]metrics.PodMetrics, 0, len(pods))
-
 	if len(pods) == 0 {
-		return resMetrics, nil
+		return nil, nil, nil
 	}
 
 	// TODO(directxman12): figure out how well this scales if we go to list 1000+ pods
@@ -165,40 +162,39 @@ func (p *resourceProvider) GetPodMetrics(pods ...*metav1.PartialObjectMetadata)
 
 	// convert the unorganized per-container results into results grouped
 	// together by namespace, pod, and container
-	for _, pod := range pods {
+	resTimes := make([]api.TimeInfo, len(pods))
-		podMetric := p.assignForPod(pod, resultsByNs)
+	resMetrics := make([][]metrics.ContainerMetrics, len(pods))
-		if podMetric != nil {
+	for i, pod := range pods {
-			resMetrics = append(resMetrics, *podMetric)
+		p.assignForPod(pod, resultsByNs, &resMetrics[i], &resTimes[i])
-		}
 	}
 
-	return resMetrics, nil
+	return resTimes, resMetrics, nil
 }
 
 // assignForPod takes the resource metrics for all containers in the given pod
 // from resultsByNs, and places them in MetricsProvider response format in resMetrics,
 // also recording the earliest time in resTime.  It will return without operating if
 // any data is missing.
-func (p *resourceProvider) assignForPod(pod *metav1.PartialObjectMetadata, resultsByNs map[string]nsQueryResults) *metrics.PodMetrics {
+func (p *resourceProvider) assignForPod(pod apitypes.NamespacedName, resultsByNs map[string]nsQueryResults, resMetrics *[]metrics.ContainerMetrics, resTime *api.TimeInfo) {
 	// check to make sure everything is present
 	nsRes, nsResPresent := resultsByNs[pod.Namespace]
 	if !nsResPresent {
 		klog.Errorf("unable to fetch metrics for pods in namespace %q, skipping pod %s", pod.Namespace, pod.String())
-		return nil
+		return
 	}
 	cpuRes, hasResult := nsRes.cpu[pod.Name]
 	if !hasResult {
 		klog.Errorf("unable to fetch CPU metrics for pod %s, skipping", pod.String())
-		return nil
+		return
 	}
 	memRes, hasResult := nsRes.mem[pod.Name]
 	if !hasResult {
 		klog.Errorf("unable to fetch memory metrics for pod %s, skipping", pod.String())
-		return nil
+		return
 	}
 
+	earliestTs := pmodel.Latest
 	containerMetrics := make(map[string]metrics.ContainerMetrics)
-	earliestTS := pmodel.Latest
 
 	// organize all the CPU results
 	for _, cpu := range cpuRes {
@@ -210,8 +206,8 @@ func (p *resourceProvider) assignForPod(pod *metav1.PartialObjectMetadata, resul
 			}
 		}
 		containerMetrics[containerName].Usage[corev1.ResourceCPU] = *resource.NewMilliQuantity(int64(cpu.Value*1000.0), resource.DecimalSI)
-		if cpu.Timestamp.Before(earliestTS) {
+		if cpu.Timestamp.Before(earliestTs) {
-			earliestTS = cpu.Timestamp
+			earliestTs = cpu.Timestamp
 		}
 	}
 
@@ -225,66 +221,44 @@ func (p *resourceProvider) assignForPod(pod *metav1.PartialObjectMetadata, resul
 			}
 		}
 		containerMetrics[containerName].Usage[corev1.ResourceMemory] = *resource.NewMilliQuantity(int64(mem.Value*1000.0), resource.BinarySI)
-		if mem.Timestamp.Before(earliestTS) {
+		if mem.Timestamp.Before(earliestTs) {
-			earliestTS = mem.Timestamp
+			earliestTs = mem.Timestamp
 		}
 	}
 
-	// check for any containers that have either memory usage or CPU usage, but not both
+	// store the time in the final format
-	for _, containerMetric := range containerMetrics {
+	*resTime = api.TimeInfo{
-		_, hasMemory := containerMetric.Usage[corev1.ResourceMemory]
+		Timestamp: earliestTs.Time(),
-		_, hasCPU := containerMetric.Usage[corev1.ResourceCPU]
+		Window:    p.window,
-		if hasMemory && !hasCPU {
-			containerMetric.Usage[corev1.ResourceCPU] = *resource.NewMilliQuantity(int64(0), resource.BinarySI)
-		} else if hasCPU && !hasMemory {
-			containerMetric.Usage[corev1.ResourceMemory] = *resource.NewMilliQuantity(int64(0), resource.BinarySI)
-		}
-	}
-
-	podMetric := &metrics.PodMetrics{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:              pod.Name,
-			Namespace:         pod.Namespace,
-			Labels:            pod.Labels,
-			CreationTimestamp: metav1.Now(),
-		},
-		// store the time in the final format
-		Timestamp: metav1.NewTime(earliestTS.Time()),
-		Window:    metav1.Duration{Duration: p.window},
 	}
 
 	// store the container metrics in the final format
-	podMetric.Containers = make([]metrics.ContainerMetrics, 0, len(containerMetrics))
+	containerMetricsList := make([]metrics.ContainerMetrics, 0, len(containerMetrics))
 	for _, containerMetric := range containerMetrics {
-		podMetric.Containers = append(podMetric.Containers, containerMetric)
+		containerMetricsList = append(containerMetricsList, containerMetric)
 	}
-
+	*resMetrics = containerMetricsList
-	return podMetric
 }
 
-// GetNodeMetrics implements the api.MetricsProvider interface.
+// GetNodeMetrics implements the api.MetricsProvider interface. It may return nil, nil, nil.
-func (p *resourceProvider) GetNodeMetrics(nodes ...*corev1.Node) ([]metrics.NodeMetrics, error) {
+func (p *resourceProvider) GetNodeMetrics(nodes ...string) ([]api.TimeInfo, []corev1.ResourceList, error) {
-	resMetrics := make([]metrics.NodeMetrics, 0, len(nodes))
-
 	if len(nodes) == 0 {
-		return resMetrics, nil
+		return nil, nil, nil
 	}
 
 	now := pmodel.Now()
-	nodeNames := make([]string, 0, len(nodes))
-	for _, node := range nodes {
-		nodeNames = append(nodeNames, node.Name)
-	}
 
 	// run the actual query
-	qRes := p.queryBoth(now, nodeResource, "", nodeNames...)
+	qRes := p.queryBoth(now, nodeResource, "", nodes...)
 	if qRes.err != nil {
-		klog.Errorf("failed querying node metrics: %v", qRes.err)
+		return nil, nil, qRes.err
-		return resMetrics, nil
 	}
 
+	resTimes := make([]api.TimeInfo, len(nodes))
+	resMetrics := make([]corev1.ResourceList, len(nodes))
+
 	// organize the results
-	for i, nodeName := range nodeNames {
+	for i, nodeName := range nodes {
 		// skip if any data is missing
 		rawCPUs, gotResult := qRes.cpu[nodeName]
 		if !gotResult {
@@ -300,30 +274,28 @@ func (p *resourceProvider) GetNodeMetrics(nodes ...*corev1.Node) ([]metrics.Node
 		rawMem := rawMems[0]
 		rawCPU := rawCPUs[0]
 
-		// use the earliest timestamp available (in order to be conservative
+		// store the results
-		// when determining if metrics are tainted by startup)
+		resMetrics[i] = corev1.ResourceList{
-		ts := rawCPU.Timestamp.Time()
+			corev1.ResourceCPU:    *resource.NewMilliQuantity(int64(rawCPU.Value*1000.0), resource.DecimalSI),
-		if ts.After(rawMem.Timestamp.Time()) {
+			corev1.ResourceMemory: *resource.NewMilliQuantity(int64(rawMem.Value*1000.0), resource.BinarySI),
-			ts = rawMem.Timestamp.Time()
 		}
 
-		// store the results
+		// use the earliest timestamp available (in order to be conservative
-		resMetrics = append(resMetrics, metrics.NodeMetrics{
+		// when determining if metrics are tainted by startup)
-			ObjectMeta: metav1.ObjectMeta{
+		if rawMem.Timestamp.Before(rawCPU.Timestamp) {
-				Name:              nodes[i].Name,
+			resTimes[i] = api.TimeInfo{
-				Labels:            nodes[i].Labels,
+				Timestamp: rawMem.Timestamp.Time(),
-				CreationTimestamp: metav1.Now(),
+				Window:    p.window,
-			},
+			}
-			Usage: corev1.ResourceList{
+		} else {
-				corev1.ResourceCPU:    *resource.NewMilliQuantity(int64(rawCPU.Value*1000.0), resource.DecimalSI),
+			resTimes[i] = api.TimeInfo{
-				corev1.ResourceMemory: *resource.NewMilliQuantity(int64(rawMem.Value*1000.0), resource.BinarySI),
+				Timestamp: rawCPU.Timestamp.Time(),
-			},
+				Window:    1 * time.Minute,
-			Timestamp: metav1.NewTime(ts),
+			}
-			Window:    metav1.Duration{Duration: p.window},
+		}
-		})
 	}
 
-	return resMetrics, nil
+	return resTimes, resMetrics, nil
 }
 
 // queryBoth queries for both CPU and memory metrics on the given
@@ -403,17 +375,13 @@ func (p *resourceProvider) runQuery(now pmodel.Time, queryInfo resourceQuery, re
 
 	// associate the results back to each given pod or node
 	res := make(queryResults, len(*rawRes.Vector))
-	for _, sample := range *rawRes.Vector {
+	for _, val := range *rawRes.Vector {
-		// skip empty samples
+		if val == nil {
-		if sample == nil {
+			// skip empty values
 			continue
 		}
-		// replace NaN and negative values by zero
+		resKey := string(val.Metric[resourceLbl])
-		if math.IsNaN(float64(sample.Value)) || sample.Value < 0 {
+		res[resKey] = append(res[resKey], val)
-			sample.Value = 0
-		}
-		resKey := string(sample.Metric[resourceLbl])
-		res[resKey] = append(res[resKey], sample)
 	}
 
 	return res, nil

pkg/resourceprovider/provider_test.go

@@ -17,25 +17,22 @@ limitations under the License.
 package resourceprovider
 
 import (
-	"math"
 	"time"
 
-	corev1 "k8s.io/api/core/v1"
-	apimeta "k8s.io/apimachinery/pkg/api/meta"
-	"k8s.io/apimachinery/pkg/api/resource"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/apimachinery/pkg/runtime/schema"
-	"k8s.io/metrics/pkg/apis/metrics"
-
-	"sigs.k8s.io/metrics-server/pkg/api"
-
-	config "sigs.k8s.io/prometheus-adapter/cmd/config-gen/utils"
-	prom "sigs.k8s.io/prometheus-adapter/pkg/client"
-	fakeprom "sigs.k8s.io/prometheus-adapter/pkg/client/fake"
-
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
+	corev1 "k8s.io/api/core/v1"
+	apimeta "k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apimachinery/pkg/api/resource"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/metrics/pkg/apis/metrics"
+	"sigs.k8s.io/metrics-server/pkg/api"
+
+	config "github.com/directxman12/k8s-prometheus-adapter/cmd/config-gen/utils"
+	prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
+	fakeprom "github.com/directxman12/k8s-prometheus-adapter/pkg/client/fake"
 	pmodel "github.com/prometheus/common/model"
 )
 
@@ -52,9 +49,9 @@ func restMapper() apimeta.RESTMapper {
 func buildPodSample(namespace, pod, container string, val float64, ts int64) *pmodel.Sample {
 	return &pmodel.Sample{
 		Metric: pmodel.Metric{
-			"namespace": pmodel.LabelValue(namespace),
+			"namespace":      pmodel.LabelValue(namespace),
-			"pod":       pmodel.LabelValue(pod),
+			"pod_name":       pmodel.LabelValue(pod),
-			"container": pmodel.LabelValue(container),
+			"container_name": pmodel.LabelValue(container),
 		},
 		Value:     pmodel.SampleValue(val),
 		Timestamp: pmodel.Time(ts),
@@ -122,10 +119,10 @@ var _ = Describe("Resource Metrics Provider", func() {
 	})
 
 	It("should be able to list metrics pods across different namespaces", func() {
-		pods := []*metav1.PartialObjectMetadata{
+		pods := []types.NamespacedName{
-			{ObjectMeta: metav1.ObjectMeta{Namespace: "some-ns", Name: "pod1"}},
+			{Namespace: "some-ns", Name: "pod1"},
-			{ObjectMeta: metav1.ObjectMeta{Namespace: "some-ns", Name: "pod3"}},
+			{Namespace: "some-ns", Name: "pod3"},
-			{ObjectMeta: metav1.ObjectMeta{Namespace: "other-ns", Name: "pod27"}},
+			{Namespace: "other-ns", Name: "pod27"},
 		}
 		fakeProm.QueryResults = map[prom.Selector]prom.QueryResult{
 			mustBuild(cpuQueries.contQuery.Build("", podResource, "some-ns", []string{cpuQueries.containerLabel}, labels.Everything(), "pod1", "pod3")): buildQueryRes("container_cpu_usage_seconds_total",
@@ -149,34 +146,28 @@ var _ = Describe("Resource Metrics Provider", func() {
 		}
 
 		By("querying for metrics for some pods")
-		podMetrics, err := prov.GetPodMetrics(pods...)
+		times, metricVals, err := prov.GetContainerMetrics(pods...)
 		Expect(err).NotTo(HaveOccurred())
 
-		By("verifying that metrics have been fetched for all the pods")
-		Expect(podMetrics).To(HaveLen(3))
-
 		By("verifying that the reported times for each are the earliest times for each pod")
-		Expect(podMetrics[0].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
+		Expect(times).To(Equal([]api.TimeInfo{
-		Expect(podMetrics[0].Window.Duration).To(Equal(time.Minute))
+			{Timestamp: pmodel.Time(10).Time(), Window: 1 * time.Minute},
-
+			{Timestamp: pmodel.Time(10).Time(), Window: 1 * time.Minute},
-		Expect(podMetrics[1].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
+			{Timestamp: pmodel.Time(270).Time(), Window: 1 * time.Minute},
-		Expect(podMetrics[1].Window.Duration).To(Equal(time.Minute))
+		}))
-
-		Expect(podMetrics[2].Timestamp.Time).To(Equal(pmodel.Time(270).Time()))
-		Expect(podMetrics[2].Window.Duration).To(Equal(time.Minute))
 
 		By("verifying that the right metrics were fetched")
-		Expect(podMetrics).To(HaveLen(3))
+		Expect(metricVals).To(HaveLen(3))
-		Expect(podMetrics[0].Containers).To(ConsistOf(
+		Expect(metricVals[0]).To(ConsistOf(
 			metrics.ContainerMetrics{Name: "cont1", Usage: buildResList(1100.0, 3100.0)},
 			metrics.ContainerMetrics{Name: "cont2", Usage: buildResList(1110.0, 3110.0)},
 		))
-		Expect(podMetrics[1].Containers).To(ConsistOf(
+		Expect(metricVals[1]).To(ConsistOf(
 			metrics.ContainerMetrics{Name: "cont1", Usage: buildResList(1300.0, 3300.0)},
 			metrics.ContainerMetrics{Name: "cont2", Usage: buildResList(1310.0, 3310.0)},
 		))
 
-		Expect(podMetrics[2].Containers).To(ConsistOf(
+		Expect(metricVals[2]).To(ConsistOf(
 			metrics.ContainerMetrics{Name: "cont1", Usage: buildResList(2200.0, 4200.0)},
 		))
 	})
@@ -194,65 +185,23 @@ var _ = Describe("Resource Metrics Provider", func() {
 		}
 
 		By("querying for metrics for some pods, one of which is missing")
-		podMetrics, err := prov.GetPodMetrics(
+		times, metricVals, err := prov.GetContainerMetrics(
-			&metav1.PartialObjectMetadata{ObjectMeta: metav1.ObjectMeta{Namespace: "some-ns", Name: "pod1"}},
+			types.NamespacedName{Namespace: "some-ns", Name: "pod1"},
-			&metav1.PartialObjectMetadata{ObjectMeta: metav1.ObjectMeta{Namespace: "some-ns", Name: "pod-nonexistant"}},
+			types.NamespacedName{Namespace: "some-ns", Name: "pod-nonexistant"},
 		)
 		Expect(err).NotTo(HaveOccurred())
 
-		By("verifying that the missing pod had no metrics")
+		By("verifying that the missing pod had nil metrics")
-		Expect(podMetrics).To(HaveLen(1))
+		Expect(metricVals).To(HaveLen(2))
+		Expect(metricVals[1]).To(BeNil())
 
 		By("verifying that the rest of time metrics and times are correct")
-		Expect(podMetrics[0].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
+		Expect(metricVals[0]).To(ConsistOf(
-		Expect(podMetrics[0].Window.Duration).To(Equal(time.Minute))
-		Expect(podMetrics[0].Containers).To(ConsistOf(
 			metrics.ContainerMetrics{Name: "cont1", Usage: buildResList(1100.0, 3100.0)},
 			metrics.ContainerMetrics{Name: "cont2", Usage: buildResList(1110.0, 3110.0)},
 		))
-	})
+		Expect(times).To(HaveLen(2))
-
+		Expect(times[0]).To(Equal(api.TimeInfo{Timestamp: pmodel.Time(10).Time(), Window: 1 * time.Minute}))
-	It("should return metrics of value zero when pod metrics have NaN or negative values", func() {
-		fakeProm.QueryResults = map[prom.Selector]prom.QueryResult{
-			mustBuild(cpuQueries.contQuery.Build("", podResource, "some-ns", []string{cpuQueries.containerLabel}, labels.Everything(), "pod1", "pod3")): buildQueryRes("container_cpu_usage_seconds_total",
-				buildPodSample("some-ns", "pod1", "cont1", -1100.0, 10),
-				buildPodSample("some-ns", "pod1", "cont2", math.NaN(), 20),
-				buildPodSample("some-ns", "pod3", "cont1", -1300.0, 10),
-				buildPodSample("some-ns", "pod3", "cont2", 1310.0, 20),
-			),
-			mustBuild(memQueries.contQuery.Build("", podResource, "some-ns", []string{cpuQueries.containerLabel}, labels.Everything(), "pod1", "pod3")): buildQueryRes("container_memory_working_set_bytes",
-				buildPodSample("some-ns", "pod1", "cont1", 3100.0, 11),
-				buildPodSample("some-ns", "pod1", "cont2", -3110.0, 21),
-				buildPodSample("some-ns", "pod3", "cont1", math.NaN(), 11),
-				buildPodSample("some-ns", "pod3", "cont2", -3310.0, 21),
-			),
-		}
-
-		By("querying for metrics for some pods")
-		podMetrics, err := prov.GetPodMetrics(
-			&metav1.PartialObjectMetadata{ObjectMeta: metav1.ObjectMeta{Namespace: "some-ns", Name: "pod1"}},
-			&metav1.PartialObjectMetadata{ObjectMeta: metav1.ObjectMeta{Namespace: "some-ns", Name: "pod3"}},
-		)
-		Expect(err).NotTo(HaveOccurred())
-
-		By("verifying that metrics have been fetched for all the pods")
-		Expect(podMetrics).To(HaveLen(2))
-
-		By("verifying that the reported times for each are the earliest times for each pod")
-		Expect(podMetrics[0].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
-		Expect(podMetrics[0].Window.Duration).To(Equal(time.Minute))
-		Expect(podMetrics[1].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
-		Expect(podMetrics[1].Window.Duration).To(Equal(time.Minute))
-
-		By("verifying that NaN and negative values were replaced by zero")
-		Expect(podMetrics[0].Containers).To(ConsistOf(
-			metrics.ContainerMetrics{Name: "cont1", Usage: buildResList(0, 3100.0)},
-			metrics.ContainerMetrics{Name: "cont2", Usage: buildResList(0, 0)},
-		))
-		Expect(podMetrics[1].Containers).To(ConsistOf(
-			metrics.ContainerMetrics{Name: "cont1", Usage: buildResList(0, 0)},
-			metrics.ContainerMetrics{Name: "cont2", Usage: buildResList(1310.0, 0)},
-		))
 	})
 
 	It("should be able to list metrics for nodes", func() {
@@ -267,24 +216,20 @@ var _ = Describe("Resource Metrics Provider", func() {
 			),
 		}
 		By("querying for metrics for some nodes")
-		nodeMetrics, err := prov.GetNodeMetrics(
+		times, metricVals, err := prov.GetNodeMetrics("node1", "node2")
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node1"}},
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node2"}},
-		)
 		Expect(err).NotTo(HaveOccurred())
 
-		By("verifying that metrics have been fetched for all the nodes")
+		By("verifying that the reported times for each are the earliest times for each pod")
-		Expect(nodeMetrics).To(HaveLen(2))
+		Expect(times).To(Equal([]api.TimeInfo{
-
+			{Timestamp: pmodel.Time(10).Time(), Window: 1 * time.Minute},
-		By("verifying that the reported times for each are the earliest times for each node")
+			{Timestamp: pmodel.Time(12).Time(), Window: 1 * time.Minute},
-		Expect(nodeMetrics[0].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
+		}))
-		Expect(nodeMetrics[0].Window.Duration).To(Equal(time.Minute))
-		Expect(nodeMetrics[1].Timestamp.Time).To(Equal(pmodel.Time(12).Time()))
-		Expect(nodeMetrics[1].Window.Duration).To(Equal(time.Minute))
 
 		By("verifying that the right metrics were fetched")
-		Expect(nodeMetrics[0].Usage).To(Equal(buildResList(1100.0, 2100.0)))
+		Expect(metricVals).To(Equal([]corev1.ResourceList{
-		Expect(nodeMetrics[1].Usage).To(Equal(buildResList(1200.0, 2200.0)))
+			buildResList(1100.0, 2100.0),
+			buildResList(1200.0, 2200.0),
+		}))
 	})
 
 	It("should return nil metrics for missing nodes, but still return partial results", func() {
@@ -299,54 +244,23 @@ var _ = Describe("Resource Metrics Provider", func() {
 			),
 		}
 		By("querying for metrics for some nodes, one of which is missing")
-		nodeMetrics, err := prov.GetNodeMetrics(
+		times, metricVals, err := prov.GetNodeMetrics("node1", "node2", "node3")
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node1"}},
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node2"}},
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node3"}},
-		)
 		Expect(err).NotTo(HaveOccurred())
 
-		By("verifying that the missing pod had no metrics")
+		By("verifying that the missing pod had nil metrics")
-		Expect(nodeMetrics).To(HaveLen(2))
+		Expect(metricVals).To(HaveLen(3))
+		Expect(metricVals[2]).To(BeNil())
 
 		By("verifying that the rest of time metrics and times are correct")
-		Expect(nodeMetrics[0].Usage).To(Equal(buildResList(1100.0, 2100.0)))
+		Expect(metricVals).To(Equal([]corev1.ResourceList{
-		Expect(nodeMetrics[0].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
+			buildResList(1100.0, 2100.0),
-		Expect(nodeMetrics[0].Window.Duration).To(Equal(time.Minute))
+			buildResList(1200.0, 2200.0),
-		Expect(nodeMetrics[1].Usage).To(Equal(buildResList(1200.0, 2200.0)))
+			nil,
-		Expect(nodeMetrics[1].Timestamp.Time).To(Equal(pmodel.Time(12).Time()))
+		}))
-		Expect(nodeMetrics[1].Window.Duration).To(Equal(time.Minute))
+		Expect(times).To(Equal([]api.TimeInfo{
-	})
+			{Timestamp: pmodel.Time(10).Time(), Window: 1 * time.Minute},
-
+			{Timestamp: pmodel.Time(12).Time(), Window: 1 * time.Minute},
-	It("should return metrics of value zero when node metrics have NaN or negative values", func() {
+			{},
-		fakeProm.QueryResults = map[prom.Selector]prom.QueryResult{
+		}))
-			mustBuild(cpuQueries.nodeQuery.Build("", nodeResource, "", nil, labels.Everything(), "node1", "node2")): buildQueryRes("container_cpu_usage_seconds_total",
-				buildNodeSample("node1", -1100.0, 10),
-				buildNodeSample("node2", 1200.0, 14),
-			),
-			mustBuild(memQueries.nodeQuery.Build("", nodeResource, "", nil, labels.Everything(), "node1", "node2")): buildQueryRes("container_memory_working_set_bytes",
-				buildNodeSample("node1", 2100.0, 11),
-				buildNodeSample("node2", math.NaN(), 12),
-			),
-		}
-		By("querying for metrics for some nodes")
-		nodeMetrics, err := prov.GetNodeMetrics(
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node1"}},
-			&corev1.Node{ObjectMeta: metav1.ObjectMeta{Name: "node2"}},
-		)
-		Expect(err).NotTo(HaveOccurred())
-
-		By("verifying that metrics have been fetched for all the nodes")
-		Expect(nodeMetrics).To(HaveLen(2))
-
-		By("verifying that the reported times for each are the earliest times for each pod")
-		Expect(nodeMetrics[0].Timestamp.Time).To(Equal(pmodel.Time(10).Time()))
-		Expect(nodeMetrics[0].Window.Duration).To(Equal(time.Minute))
-		Expect(nodeMetrics[1].Timestamp.Time).To(Equal(pmodel.Time(12).Time()))
-		Expect(nodeMetrics[1].Window.Duration).To(Equal(time.Minute))
-
-		By("verifying that NaN and negative values were replaced by zero")
-		Expect(nodeMetrics[0].Usage).To(Equal(buildResList(0, 2100.0)))
-		Expect(nodeMetrics[1].Usage).To(Equal(buildResList(1200.0, 0)))
 	})
 })

test/README.md

@@ -1,41 +0,0 @@
-# End-to-end tests
-
-## With [kind](https://kind.sigs.k8s.io/)
-
-[`kind`](https://kind.sigs.k8s.io/) and `kubectl` are automatically downloaded
-except if `SKIP_INSTALL=true` is set.
-A `kind` cluster is automatically created before the tests, and deleted after
-the tests.
-The `prometheus-adapter` container image is build locally and imported
-into the cluster.
-
-```bash
-KIND_E2E=true make test-e2e
-```
-
-## With an existing Kubernetes cluster
-
-If you already have a Kubernetes cluster, you can use:
-
-```bash
-KUBECONFIG="/path/to/kube/config" REGISTRY="my.registry/prefix" make test-e2e
-```
-
-- The cluster should not have a namespace `prometheus-adapter-e2e`.
-  The namespace will be created and deleted as part of the E2E tests.
-- `KUBECONFIG` is the path of the [`kubeconfig` file].
-  **Optional**, defaults to `${HOME}/.kube/config`
-- `REGISTRY` is the image registry where the container image should be pushed.
-  **Required**.
-
-[`kubeconfig` file]: https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/
-
-## Additional environment variables
-
-These environment variables may also be used (with any non-empty value):
-
-- `SKIP_INSTALL`: skip the installation of `kind` and `kubectl` binaries;
-- `SKIP_CLEAN_AFTER`: skip the deletion of resources (`Kind` cluster or
-  Kubernetes namespace) and of the temporary directory `.e2e`;
-- `CLEAN_BEFORE`: clean before running the tests, e.g. if `SKIP_CLEAN_AFTER`
-  was used on the previous run.

test/e2e/e2e_test.go

@@ -1,213 +0,0 @@
-/*
-Copyright 2022 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package e2e
-
-import (
-	"context"
-	"fmt"
-	"log"
-	"os"
-	"testing"
-	"time"
-
-	monitoringv1 "github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring/v1"
-	monitoring "github.com/prometheus-operator/prometheus-operator/pkg/client/versioned"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/wait"
-	clientset "k8s.io/client-go/kubernetes"
-	"k8s.io/client-go/tools/clientcmd"
-	metricsv1beta1 "k8s.io/metrics/pkg/apis/metrics/v1beta1"
-	metrics "k8s.io/metrics/pkg/client/clientset/versioned"
-)
-
-const (
-	ns                 = "prometheus-adapter-e2e"
-	prometheusInstance = "prometheus"
-	deployment         = "prometheus-adapter"
-)
-
-var (
-	client        clientset.Interface
-	promOpClient  monitoring.Interface
-	metricsClient metrics.Interface
-)
-
-func TestMain(m *testing.M) {
-	kubeconfig := os.Getenv("KUBECONFIG")
-	if len(kubeconfig) == 0 {
-		log.Fatal("KUBECONFIG not provided")
-	}
-
-	var err error
-	client, promOpClient, metricsClient, err = initializeClients(kubeconfig)
-	if err != nil {
-		log.Fatalf("Cannot create clients: %v", err)
-	}
-
-	ctx := context.Background()
-	err = waitForPrometheusReady(ctx, ns, prometheusInstance)
-	if err != nil {
-		log.Fatalf("Prometheus instance 'prometheus' not ready: %v", err)
-	}
-	err = waitForDeploymentReady(ctx, ns, deployment)
-	if err != nil {
-		log.Fatalf("Deployment prometheus-adapter not ready: %v", err)
-	}
-
-	exitVal := m.Run()
-	os.Exit(exitVal)
-}
-
-func initializeClients(kubeconfig string) (clientset.Interface, monitoring.Interface, metrics.Interface, error) {
-	cfg, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
-	if err != nil {
-		return nil, nil, nil, fmt.Errorf("Error during client configuration with %v", err)
-	}
-
-	clientSet, err := clientset.NewForConfig(cfg)
-	if err != nil {
-		return nil, nil, nil, fmt.Errorf("Error during client creation with %v", err)
-	}
-
-	promOpClient, err := monitoring.NewForConfig(cfg)
-	if err != nil {
-		return nil, nil, nil, fmt.Errorf("Error during dynamic client creation with %v", err)
-	}
-
-	metricsClientSet, err := metrics.NewForConfig(cfg)
-	if err != nil {
-		return nil, nil, nil, fmt.Errorf("Error during metrics client creation with %v", err)
-	}
-
-	return clientSet, promOpClient, metricsClientSet, nil
-}
-
-func waitForPrometheusReady(ctx context.Context, namespace string, name string) error {
-	return wait.PollUntilContextTimeout(ctx, 5*time.Second, 120*time.Second, true, func(ctx context.Context) (bool, error) {
-		prom, err := promOpClient.MonitoringV1().Prometheuses(ns).Get(ctx, name, metav1.GetOptions{})
-		if err != nil {
-			return false, err
-		}
-
-		var reconciled, available *monitoringv1.Condition
-		for _, condition := range prom.Status.Conditions {
-			cond := condition
-			if cond.Type == monitoringv1.Reconciled {
-				reconciled = &cond
-			} else if cond.Type == monitoringv1.Available {
-				available = &cond
-			}
-		}
-
-		if reconciled == nil {
-			log.Printf("Prometheus instance '%s': Waiting for reconciliation status...", name)
-			return false, nil
-		}
-		if reconciled.Status != monitoringv1.ConditionTrue {
-			log.Printf("Prometheus instance '%s': Reconciiled = %v. Waiting for reconciliation (reason %s, %q)...", name, reconciled.Status, reconciled.Reason, reconciled.Message)
-			return false, nil
-		}
-
-		specReplicas := *prom.Spec.Replicas
-		availableReplicas := prom.Status.AvailableReplicas
-		if specReplicas != availableReplicas {
-			log.Printf("Prometheus instance '%s': %v/%v pods are ready. Waiting for all pods to be ready...", name, availableReplicas, specReplicas)
-			return false, err
-		}
-
-		if available == nil {
-			log.Printf("Prometheus instance '%s': Waiting for Available status...", name)
-			return false, nil
-		}
-		if available.Status != monitoringv1.ConditionTrue {
-			log.Printf("Prometheus instance '%s': Available = %v. Waiting for Available status... (reason %s, %q)", name, available.Status, available.Reason, available.Message)
-			return false, nil
-		}
-
-		log.Printf("Prometheus instance '%s': Ready.", name)
-		return true, nil
-	})
-}
-
-func waitForDeploymentReady(ctx context.Context, namespace string, name string) error {
-	return wait.PollUntilContextTimeout(ctx, 5*time.Second, 30*time.Second, true, func(ctx context.Context) (bool, error) {
-		sts, err := client.AppsV1().Deployments(namespace).Get(ctx, name, metav1.GetOptions{})
-		if err != nil {
-			return false, err
-		}
-		if sts.Status.ReadyReplicas == *sts.Spec.Replicas {
-			log.Printf("Deployment %s: %v/%v pods are ready.", name, sts.Status.ReadyReplicas, *sts.Spec.Replicas)
-			return true, nil
-		}
-		log.Printf("Deployment %s: %v/%v pods are ready. Waiting for all pods to be ready...", name, sts.Status.ReadyReplicas, *sts.Spec.Replicas)
-		return false, nil
-	})
-}
-
-func TestNodeMetrics(t *testing.T) {
-	ctx := context.Background()
-	var nodeMetrics *metricsv1beta1.NodeMetricsList
-	err := wait.PollUntilContextTimeout(ctx, 2*time.Second, 30*time.Second, true, func(ctx context.Context) (bool, error) {
-		var err error
-		nodeMetrics, err = metricsClient.MetricsV1beta1().NodeMetricses().List(ctx, metav1.ListOptions{})
-		if err != nil {
-			return false, err
-		}
-		nonEmptyNodeMetrics := len(nodeMetrics.Items) > 0
-		if !nonEmptyNodeMetrics {
-			t.Logf("Node metrics empty... Retrying.")
-		}
-		return nonEmptyNodeMetrics, nil
-	})
-	require.NoErrorf(t, err, "Node metrics should not be empty")
-
-	for _, nodeMetric := range nodeMetrics.Items {
-		positiveMemory := nodeMetric.Usage.Memory().CmpInt64(0)
-		assert.Positivef(t, positiveMemory, "Memory usage for node %s is %v, should be > 0", nodeMetric.Name, nodeMetric.Usage.Memory())
-
-		positiveCPU := nodeMetric.Usage.Cpu().CmpInt64(0)
-		assert.Positivef(t, positiveCPU, "CPU usage for node %s is %v, should be > 0", nodeMetric.Name, nodeMetric.Usage.Cpu())
-	}
-}
-
-func TestPodMetrics(t *testing.T) {
-	ctx := context.Background()
-	var podMetrics *metricsv1beta1.PodMetricsList
-	err := wait.PollUntilContextTimeout(ctx, 2*time.Second, 30*time.Second, true, func(ctx context.Context) (bool, error) {
-		var err error
-		podMetrics, err = metricsClient.MetricsV1beta1().PodMetricses(ns).List(ctx, metav1.ListOptions{})
-		if err != nil {
-			return false, err
-		}
-		nonEmptyNodeMetrics := len(podMetrics.Items) > 0
-		if !nonEmptyNodeMetrics {
-			t.Logf("Pod metrics empty... Retrying.")
-		}
-		return nonEmptyNodeMetrics, nil
-	})
-	require.NoErrorf(t, err, "Pod metrics should not be empty")
-
-	for _, pod := range podMetrics.Items {
-		for _, containerMetric := range pod.Containers {
-			positiveMemory := containerMetric.Usage.Memory().CmpInt64(0)
-			assert.Positivef(t, positiveMemory, "Memory usage for pod %s/%s is %v, should be > 0", pod.Name, containerMetric.Name, containerMetric.Usage.Memory())
-		}
-	}
-}

test/prometheus-manifests/cluster-role.yaml

@@ -1,24 +0,0 @@
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
-metadata:
-  name: prometheus
-rules:
-- apiGroups: [""]
-  resources:
-  - nodes
-  - nodes/metrics
-  - services
-  - endpoints
-  - pods
-  verbs: ["get", "list", "watch"]
-- apiGroups: [""]
-  resources:
-  - configmaps
-  verbs: ["get"]
-- apiGroups:
-  - networking.k8s.io
-  resources:
-  - ingresses
-  verbs: ["get", "list", "watch"]
-- nonResourceURLs: ["/metrics"]
-  verbs: ["get"]

test/prometheus-manifests/prometheus.yaml

@@ -1,9 +0,0 @@
-apiVersion: monitoring.coreos.com/v1
-kind: Prometheus
-metadata:
-  name: prometheus
-  namespace: prometheus-adapter-e2e
-spec:
-  replicas: 2
-  serviceAccountName: prometheus
-  serviceMonitorSelector: {}

test/prometheus-manifests/service-account.yaml

@@ -1,5 +0,0 @@
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: prometheus
-  namespace: prometheus-adapter-e2e

test/prometheus-manifests/service-monitor-kubelet.yaml

@@ -1,25 +0,0 @@
-apiVersion: monitoring.coreos.com/v1
-kind: ServiceMonitor
-metadata:
-  labels:
-    app.kubernetes.io/name: kubelet
-  name: kubelet
-  namespace: prometheus-adapter-e2e
-spec:
-  endpoints:
-  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
-    honorLabels: true
-    honorTimestamps: false
-    interval: 10s
-    path: /metrics/resource
-    port: https-metrics
-    scheme: https
-    tlsConfig:
-      insecureSkipVerify: true
-  jobLabel: app.kubernetes.io/name
-  namespaceSelector:
-    matchNames:
-    - kube-system
-  selector:
-    matchLabels:
-      app.kubernetes.io/name: kubelet

test/prometheus-manifests/service.yaml

@@ -1,14 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: prometheus
-  namespace: prometheus-adapter-e2e
-spec:
-  ports:
-  - name: web
-    port: 9090
-    targetPort: web
-  selector:
-    app.kubernetes.io/instance: prometheus
-    app.kubernetes.io/name: prometheus
-  sessionAffinity: ClientIP

test/run-e2e-tests.sh

@@ -1,134 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2022 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -x
-set -o errexit
-set -o nounset
-
-# Tool versions
-K8S_VERSION=${KUBERNETES_VERSION:-v1.30.0}   # cf https://hub.docker.com/r/kindest/node/tags
-KIND_VERSION=${KIND_VERSION:-v0.23.0}        # cf https://github.com/kubernetes-sigs/kind/releases
-PROM_OPERATOR_VERSION=${PROM_OPERATOR_VERSION:-v0.73.2} # cf https://github.com/prometheus-operator/prometheus-operator/releases
-
-# Variables; set to empty if unbound/empty
-REGISTRY=${REGISTRY:-}
-KIND_E2E=${KIND_E2E:-}
-SKIP_INSTALL=${SKIP_INSTALL:-}
-SKIP_CLEAN_AFTER=${SKIP_CLEAN_AFTER:-}
-CLEAN_BEFORE=${CLEAN_BEFORE:-}
-
-# KUBECONFIG - will be overriden if a cluster is deployed with Kind
-KUBECONFIG=${KUBECONFIG:-"${HOME}/.kube/config"}
-
-# A temporary directory used by the tests
-E2E_DIR="${PWD}/.e2e"
-
-# The namespace where prometheus-adapter is deployed
-NAMESPACE="prometheus-adapter-e2e"
-
-if [[ -z "${REGISTRY}" && -z "${KIND_E2E}" ]]; then
-    echo -e "Either REGISTRY or KIND_E2E should be set."
-    exit 1
-fi
-
-function clean {
-    if [[ -n "${KIND_E2E}" ]]; then
-        kind delete cluster || true
-    else
-        kubectl delete -f ./deploy/manifests || true
-        kubectl delete -f ./test/prometheus-manifests || true
-        kubectl delete namespace "${NAMESPACE}" || true
-    fi
-
-    rm -rf "${E2E_DIR}"
-}
-
-if [[ -n "${CLEAN_BEFORE}" ]]; then
-    clean
-fi
-
-function on_exit {
-    local error_code="$?"
-
-    echo "Obtaining prometheus-adapter pod logs..."
-    kubectl logs -l app.kubernetes.io/name=prometheus-adapter -n "${NAMESPACE}" || true
-
-    if [[ -z "${SKIP_CLEAN_AFTER}" ]]; then
-        clean
-    fi
-
-    test "${error_code}" == 0 && return;
-}
-trap on_exit EXIT
-
-if [[ -d "${E2E_DIR}" ]]; then
-    echo -e "${E2E_DIR} already exists."
-    exit 1
-fi
-mkdir -p "${E2E_DIR}"
-
-if [[ -n "${KIND_E2E}" ]]; then
-    # Install kubectl and kind, if we did not set SKIP_INSTALL
-    if [[ -z "${SKIP_INSTALL}" ]]; then
-        BIN="${E2E_DIR}/bin"
-        mkdir -p "${BIN}"
-        curl -Lo "${BIN}/kubectl" "https://dl.k8s.io/release/${K8S_VERSION}/bin/linux/amd64/kubectl" && chmod +x "${BIN}/kubectl"
-        curl -Lo "${BIN}/kind" "https://kind.sigs.k8s.io/dl/${KIND_VERSION}/kind-linux-amd64" && chmod +x "${BIN}/kind"
-        export PATH="${BIN}:${PATH}"
-    fi
-
-    kind create cluster --image "kindest/node:${K8S_VERSION}"
-
-    REGISTRY="localhost"
-
-    KUBECONFIG="${E2E_DIR}/kubeconfig"
-    kind get kubeconfig > "${KUBECONFIG}"
-fi
-
-# Create the test namespace
-kubectl create namespace "${NAMESPACE}"
-
-export REGISTRY
-IMAGE_NAME="${REGISTRY}/prometheus-adapter-$(go env GOARCH)"
-IMAGE_TAG="v$(cat VERSION)"
-
-if [[ -n "${KIND_E2E}" ]]; then
-    make container
-    kind load docker-image "${IMAGE_NAME}:${IMAGE_TAG}"
-else
-    make push
-fi
-
-# Install prometheus-operator
-kubectl apply -f "https://github.com/prometheus-operator/prometheus-operator/releases/download/${PROM_OPERATOR_VERSION}/bundle.yaml" --server-side
-
-# Install and setup prometheus
-kubectl apply -f ./test/prometheus-manifests --server-side
-
-# Customize prometheus-adapter manifests
-# TODO: use Kustomize or generate manifests from Jsonnet
-cp -r ./deploy/manifests "${E2E_DIR}/manifests"
-prom_url="http://prometheus.${NAMESPACE}.svc:9090/"
-sed -i -e "s|--prometheus-url=.*$|--prometheus-url=${prom_url}|g" "${E2E_DIR}/manifests/deployment.yaml"
-sed -i -e "s|image: .*$|image: ${IMAGE_NAME}:${IMAGE_TAG}|g" "${E2E_DIR}/manifests/deployment.yaml"
-find "${E2E_DIR}/manifests" -type f -exec sed -i -e "s|namespace: monitoring|namespace: ${NAMESPACE}|g" {} \;
-
-# Deploy prometheus-adapter
-kubectl apply -f "${E2E_DIR}/manifests" --server-side
-
-PROJECT_PREFIX="sigs.k8s.io/prometheus-adapter"
-export KUBECONFIG
-go test "${PROJECT_PREFIX}/test/e2e/" -v -count=1

vendor/github.com/NYTimes/gziphandler/.gitignore

@@ -0,0 +1 @@
+*.swp

vendor/github.com/NYTimes/gziphandler/.travis.yml

@@ -0,0 +1,6 @@
+language: go
+
+go:
+  - 1.7
+  - 1.8
+  - tip

vendor/github.com/NYTimes/gziphandler/CODE_OF_CONDUCT.md

@@ -0,0 +1,75 @@
+---
+layout: code-of-conduct
+version: v1.0
+---
+
+This code of conduct outlines our expectations for participants within the **NYTimes/gziphandler** community, as well as steps to reporting unacceptable behavior. We are committed to providing a welcoming and inspiring community for all and expect our code of conduct to be honored. Anyone who violates this code of conduct may be banned from the community.
+
+Our open source community strives to:
+
+* **Be friendly and patient.**
+* **Be welcoming**: We strive to be a community that welcomes and supports people of all backgrounds and identities. This includes, but is not limited to members of any race, ethnicity, culture, national origin, colour, immigration status, social and economic class, educational level, sex, sexual orientation, gender identity and expression, age, size, family status, political belief, religion, and mental and physical ability.
+* **Be considerate**: Your work will be used by other people, and you in turn will depend on the work of others. Any decision you take will affect users and colleagues, and you should take those consequences into account when making decisions. Remember that we're a world-wide community, so you might not be communicating in someone else's primary language.
+* **Be respectful**:  Not all of us will agree all the time, but disagreement is no excuse for poor behavior and poor manners. We might all experience some frustration now and then, but we cannot allow that frustration to turn into a personal attack. It’s important to remember that a community where people feel uncomfortable or threatened is not a productive one.
+* **Be careful in the words that we choose**: we are a community of professionals, and we conduct ourselves professionally. Be kind to others. Do not insult or put down other participants. Harassment and other exclusionary behavior aren't acceptable.
+* **Try to understand why we disagree**: Disagreements, both social and technical, happen all the time. It is important that we resolve disagreements and differing views constructively. Remember that we’re different. The strength of our community comes from its diversity, people from a wide range of backgrounds. Different people have different perspectives on issues. Being unable to understand why someone holds a viewpoint doesn’t mean that they’re wrong. Don’t forget that it is human to err and blaming each other doesn’t get us anywhere. Instead, focus on helping to resolve issues and learning from mistakes.
+
+## Definitions
+
+Harassment includes, but is not limited to:
+
+- Offensive comments related to gender, gender identity and expression, sexual orientation, disability, mental illness, neuro(a)typicality, physical appearance, body size, race, age, regional discrimination, political or religious affiliation
+- Unwelcome comments regarding a person’s lifestyle choices and practices, including those related to food, health, parenting, drugs, and employment
+- Deliberate misgendering. This includes deadnaming or persistently using a pronoun that does not correctly reflect a person's gender identity. You must address people by the name they give you when not addressing them by their username or handle
+- Physical contact and simulated physical contact (eg, textual descriptions like “*hug*” or “*backrub*”) without consent or after a request to stop
+- Threats of violence, both physical and psychological
+- Incitement of violence towards any individual, including encouraging a person to commit suicide or to engage in self-harm
+- Deliberate intimidation
+- Stalking or following
+- Harassing photography or recording, including logging online activity for harassment purposes
+- Sustained disruption of discussion
+- Unwelcome sexual attention, including gratuitous or off-topic sexual images or behaviour
+- Pattern of inappropriate social contact, such as requesting/assuming inappropriate levels of intimacy with others
+- Continued one-on-one communication after requests to cease
+- Deliberate “outing” of any aspect of a person’s identity without their consent except as necessary to protect others from intentional abuse
+- Publication of non-harassing private communication
+
+Our open source community prioritizes marginalized people’s safety over privileged people’s comfort. We will not act on complaints regarding:
+
+- ‘Reverse’ -isms, including ‘reverse racism,’ ‘reverse sexism,’ and ‘cisphobia’
+- Reasonable communication of boundaries, such as “leave me alone,” “go away,” or “I’m not discussing this with you”
+- Refusal to explain or debate social justice concepts
+- Communicating in a ‘tone’ you don’t find congenial
+- Criticizing racist, sexist, cissexist, or otherwise oppressive behavior or assumptions
+
+
+### Diversity Statement
+
+We encourage everyone to participate and are committed to building a community for all. Although we will fail at times, we seek to treat everyone both as fairly and equally as possible. Whenever a participant has made a mistake, we expect them to take responsibility for it. If someone has been harmed or offended, it is our responsibility to listen carefully and respectfully, and do our best to right the wrong.
+
+Although this list cannot be exhaustive, we explicitly honor diversity in age, gender, gender identity or expression, culture, ethnicity, language, national origin, political beliefs, profession, race, religion, sexual orientation, socioeconomic status, and technical ability. We will not tolerate discrimination based on any of the protected
+characteristics above, including participants with disabilities.
+
+### Reporting Issues
+
+If you experience or witness unacceptable behavior—or have any other concerns—please report it by contacting us via **code@nytimes.com**. All reports will be handled with discretion. In your report please include:
+
+- Your contact information.
+- Names (real, nicknames, or pseudonyms) of any individuals involved. If there are additional witnesses, please
+include them as well. Your account of what occurred, and if you believe the incident is ongoing. If there is a publicly available record (e.g. a mailing list archive or a public IRC logger), please include a link.
+- Any additional information that may be helpful.
+
+After filing a report, a representative will contact you personally, review the incident, follow up with any additional questions, and make a decision as to how to respond. If the person who is harassing you is part of the response team, they will recuse themselves from handling your incident. If the complaint originates from a member of the response team, it will be handled by a different member of the response team. We will respect confidentiality requests for the purpose of protecting victims of abuse.
+
+### Attribution & Acknowledgements
+
+We all stand on the shoulders of giants across many open source communities.  We'd like to thank the communities and projects that established code of conducts and diversity statements as our inspiration:
+
+* [Django](https://www.djangoproject.com/conduct/reporting/)
+* [Python](https://www.python.org/community/diversity/)
+* [Ubuntu](http://www.ubuntu.com/about/about-ubuntu/conduct)
+* [Contributor Covenant](http://contributor-covenant.org/)
+* [Geek Feminism](http://geekfeminism.org/about/code-of-conduct/)
+* [Citizen Code of Conduct](http://citizencodeofconduct.org/)
+
+This Code of Conduct was based on https://github.com/todogroup/opencodeofconduct

vendor/github.com/NYTimes/gziphandler/CONTRIBUTING.md

@@ -0,0 +1,30 @@
+# Contributing to NYTimes/gziphandler
+
+This is an open source project started by handful of developers at The New York Times and open to the entire Go community.
+
+We really appreciate your help!
+
+## Filing issues
+
+When filing an issue, make sure to answer these five questions:
+
+1. What version of Go are you using (`go version`)?
+2. What operating system and processor architecture are you using?
+3. What did you do?
+4. What did you expect to see?
+5. What did you see instead?
+
+## Contributing code
+
+Before submitting changes, please follow these guidelines:
+
+1. Check the open issues and pull requests for existing discussions.
+2. Open an issue to discuss a new feature.
+3. Write tests.
+4. Make sure code follows the ['Go Code Review Comments'](https://github.com/golang/go/wiki/CodeReviewComments).
+5. Make sure your changes pass `go test`.
+6. Make sure the entire test suite passes locally and on Travis CI.
+7. Open a Pull Request.
+8. [Squash your commits](http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html) after receiving feedback and add a [great commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
+
+Unless otherwise noted, the gziphandler source files are distributed under the Apache 2.0-style license found in the LICENSE.md file.

vendor/github.com/NYTimes/gziphandler/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
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+
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