mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-05 17:27:51 +00:00
113 lines
5 KiB
Go
113 lines
5 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package provider
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import (
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"time"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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pmodel "github.com/prometheus/common/model"
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"k8s.io/apimachinery/pkg/runtime/schema"
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fakedyn "k8s.io/client-go/dynamic/fake"
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"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
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config "sigs.k8s.io/prometheus-adapter/cmd/config-gen/utils"
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prom "sigs.k8s.io/prometheus-adapter/pkg/client"
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fakeprom "sigs.k8s.io/prometheus-adapter/pkg/client/fake"
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"sigs.k8s.io/prometheus-adapter/pkg/naming"
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)
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const fakeProviderUpdateInterval = 2 * time.Second
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const fakeProviderStartDuration = 2 * time.Second
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func setupPrometheusProvider() (provider.CustomMetricsProvider, *fakeprom.FakePrometheusClient) {
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fakeProm := &fakeprom.FakePrometheusClient{}
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fakeKubeClient := &fakedyn.FakeDynamicClient{}
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cfg := config.DefaultConfig(1*time.Minute, "")
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namers, err := naming.NamersFromConfig(cfg.Rules, restMapper())
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Expect(err).NotTo(HaveOccurred())
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prov, _ := NewPrometheusProvider(restMapper(), fakeKubeClient, fakeProm, namers, fakeProviderUpdateInterval, fakeProviderStartDuration)
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containerSel := prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod", ""))
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namespacedSel := prom.MatchSeries("", prom.LabelNeq("namespace", ""), prom.NameNotMatches("^container_.*"))
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fakeProm.SeriesResults = map[prom.Selector][]prom.Series{
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containerSel: {
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{
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Name: "container_some_usage",
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Labels: pmodel.LabelSet{"pod": "somepod", "namespace": "somens", "container": "somecont"},
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},
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},
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namespacedSel: {
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{
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Name: "ingress_hits_total",
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Labels: pmodel.LabelSet{"ingress": "someingress", "service": "somesvc", "pod": "backend1", "namespace": "somens"},
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},
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{
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Name: "ingress_hits_total",
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Labels: pmodel.LabelSet{"ingress": "someingress", "service": "somesvc", "pod": "backend2", "namespace": "somens"},
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},
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{
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Name: "service_proxy_packets",
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Labels: pmodel.LabelSet{"service": "somesvc", "namespace": "somens"},
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},
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{
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Name: "work_queue_wait_seconds_total",
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Labels: pmodel.LabelSet{"deployment": "somedep", "namespace": "somens"},
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},
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},
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}
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return prov, fakeProm
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}
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var _ = Describe("Custom Metrics Provider", func() {
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It("should be able to list all metrics", func() {
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By("setting up the provider")
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prov, fakeProm := setupPrometheusProvider()
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By("ensuring that no metrics are present before we start listing")
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Expect(prov.ListAllMetrics()).To(BeEmpty())
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By("setting the acceptable interval to now until the next update, with a bit of wiggle room")
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startTime := pmodel.Now().Add(-1*fakeProviderUpdateInterval - fakeProviderUpdateInterval/10)
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fakeProm.AcceptableInterval = pmodel.Interval{Start: startTime, End: 0}
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By("updating the list of available metrics")
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// don't call RunUntil to avoid timing issue
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lister := prov.(*prometheusProvider).SeriesRegistry.(*cachingMetricsLister)
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Expect(lister.updateMetrics()).To(Succeed())
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By("listing all metrics, and checking that they contain the expected results")
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Expect(prov.ListAllMetrics()).To(ConsistOf(
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "services"}, Namespaced: true, Metric: "ingress_hits"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "ingresses"}, Namespaced: true, Metric: "ingress_hits"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "ingress_hits"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "ingress_hits"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "services"}, Namespaced: true, Metric: "service_proxy_packets"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "service_proxy_packets"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Group: "extensions", Resource: "deployments"}, Namespaced: true, Metric: "work_queue_wait"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "work_queue_wait"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "namespaces"}, Namespaced: false, Metric: "some_usage"},
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provider.CustomMetricInfo{GroupResource: schema.GroupResource{Resource: "pods"}, Namespaced: true, Metric: "some_usage"},
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))
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})
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})
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