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vendor: revendor metrics-server, custom-metrics-apiserver

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This commit is contained in:
Sergiusz Urbaniak 2020-10-28 15:52:52 +01:00
parent 752ce84723
commit 523aa52367
1010 changed files with 91458 additions and 29107 deletions
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84
vendor/k8s.io/apiserver/pkg/audit/context.go generated vendored Normal file
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@ -0,0 +1,84 @@
/*
Copyright 2020 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 audit
import (
"context"
genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
)
// The key type is unexported to prevent collisions
type key int
const (
// auditAnnotationsKey is the context key for the audit annotations.
auditAnnotationsKey key = iota
)
// annotations = *[]annotation instead of a map to preserve order of insertions
type annotation struct {
key, value string
}
// WithAuditAnnotations returns a new context that can store audit annotations
// via the AddAuditAnnotation function. This function is meant to be called from
// an early request handler to allow all later layers to set audit annotations.
// This is required to support flows where handlers that come before WithAudit
// (such as WithAuthentication) wish to set audit annotations.
func WithAuditAnnotations(parent context.Context) context.Context {
// this should never really happen, but prevent double registration of this slice
if _, ok := parent.Value(auditAnnotationsKey).(*[]annotation); ok {
return parent
}
var annotations []annotation // avoid allocations until we actually need it
return genericapirequest.WithValue(parent, auditAnnotationsKey, &annotations)
}
// AddAuditAnnotation sets the audit annotation for the given key, value pair.
// It is safe to call at most parts of request flow that come after WithAuditAnnotations.
// The notable exception being that this function must not be called via a
// defer statement (i.e. after ServeHTTP) in a handler that runs before WithAudit
// as at that point the audit event has already been sent to the audit sink.
// Handlers that are unaware of their position in the overall request flow should
// prefer AddAuditAnnotation over LogAnnotation to avoid dropping annotations.
func AddAuditAnnotation(ctx context.Context, key, value string) {
// use the audit event directly if we have it
if ae := genericapirequest.AuditEventFrom(ctx); ae != nil {
LogAnnotation(ae, key, value)
return
}
annotations, ok := ctx.Value(auditAnnotationsKey).(*[]annotation)
if !ok {
return // adding audit annotation is not supported at this call site
}
*annotations = append(*annotations, annotation{key: key, value: value})
}
// This is private to prevent reads/write to the slice from outside of this package.
// The audit event should be directly read to get access to the annotations.
func auditAnnotationsFrom(ctx context.Context) []annotation {
annotations, ok := ctx.Value(auditAnnotationsKey).(*[]annotation)
if !ok {
return nil // adding audit annotation is not supported at this call site
}
return *annotations
}

148
vendor/k8s.io/apiserver/pkg/audit/event/attributes.go generated vendored
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@ -1,148 +0,0 @@
/*
Copyright 2018 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 event
import (
"fmt"
"net/url"
authnv1 "k8s.io/api/authentication/v1"
"k8s.io/apiserver/pkg/apis/audit"
authuser "k8s.io/apiserver/pkg/authentication/user"
"k8s.io/apiserver/pkg/authorization/authorizer"
)
var _ authorizer.Attributes = &attributes{}
// attributes implements the authorizer attributes interface
// with event data. This is used for enforced audit backends
type attributes struct {
event *audit.Event
path string
}
// NewAttributes returns a new attributes struct and parsed request uri
// if needed
func NewAttributes(event *audit.Event) (authorizer.Attributes, error) {
a := attributes{
event: event,
}
if event.ObjectRef == nil {
u, err := url.ParseRequestURI(a.event.RequestURI)
if err != nil {
return nil, fmt.Errorf("could not parse url: %v", err)
}
a.path = u.Path
}
return &a, nil
}
// GetUser returns the user. This is only used for checking audit policy,
// and the audit policy user check is based off the original user,
// not the impersonated user.
func (a *attributes) GetUser() authuser.Info {
return user(a.event.User)
}
// GetVerb returns the verb
func (a *attributes) GetVerb() string {
return a.event.Verb
}
// IsReadOnly determines if the verb is a read only action
func (a *attributes) IsReadOnly() bool {
return a.event.Verb == "get" || a.event.Verb == "list" || a.event.Verb == "watch"
}
// GetNamespace returns the object namespace if present
func (a *attributes) GetNamespace() string {
if a.event.ObjectRef == nil {
return ""
}
return a.event.ObjectRef.Namespace
}
// GetResource returns the object resource if present
func (a *attributes) GetResource() string {
if a.event.ObjectRef == nil {
return ""
}
return a.event.ObjectRef.Resource
}
// GetSubresource returns the object subresource if present
func (a *attributes) GetSubresource() string {
if a.event.ObjectRef == nil {
return ""
}
return a.event.ObjectRef.Subresource
}
// GetName returns the object name if present
func (a *attributes) GetName() string {
if a.event.ObjectRef == nil {
return ""
}
return a.event.ObjectRef.Name
}
// GetAPIGroup returns the object api group if present
func (a *attributes) GetAPIGroup() string {
if a.event.ObjectRef == nil {
return ""
}
return a.event.ObjectRef.APIGroup
}
// GetAPIVersion returns the object api version if present
func (a *attributes) GetAPIVersion() string {
if a.event.ObjectRef == nil {
return ""
}
return a.event.ObjectRef.APIVersion
}
// IsResourceRequest determines if the request was acted on a resource
func (a *attributes) IsResourceRequest() bool {
return a.event.ObjectRef != nil
}
// GetPath returns the path uri accessed
func (a *attributes) GetPath() string {
return a.path
}
// user represents the event user
type user authnv1.UserInfo
// GetName returns the user name
func (u user) GetName() string { return u.Username }
// GetUID returns the user uid
func (u user) GetUID() string { return u.UID }
// GetGroups returns the user groups
func (u user) GetGroups() []string { return u.Groups }
// GetExtra returns the user extra data
func (u user) GetExtra() map[string][]string {
m := map[string][]string{}
for k, v := range u.Extra {
m[k] = []string(v)
}
return m
}

2
vendor/k8s.io/apiserver/pkg/audit/metrics.go generated vendored
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@ -22,7 +22,7 @@ import (
auditinternal "k8s.io/apiserver/pkg/apis/audit"
"k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
"k8s.io/klog"
"k8s.io/klog/v2"
)
const (

54
vendor/k8s.io/apiserver/pkg/audit/policy/dynamic.go generated vendored
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@ -1,54 +0,0 @@
/*
Copyright 2018 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 policy
import (
"k8s.io/api/auditregistration/v1alpha1"
"k8s.io/apiserver/pkg/apis/audit"
"k8s.io/apiserver/pkg/authorization/authorizer"
)
// ConvertDynamicPolicyToInternal constructs an internal policy type from a
// v1alpha1 dynamic type
func ConvertDynamicPolicyToInternal(p *v1alpha1.Policy) *audit.Policy {
stages := make([]audit.Stage, len(p.Stages))
for i, stage := range p.Stages {
stages[i] = audit.Stage(stage)
}
return &audit.Policy{
Rules: []audit.PolicyRule{
{
Level: audit.Level(p.Level),
},
},
OmitStages: InvertStages(stages),
}
}
// NewDynamicChecker returns a new dynamic policy checker
func NewDynamicChecker() Checker {
return &dynamicPolicyChecker{}
}
type dynamicPolicyChecker struct{}
// LevelAndStages returns returns a fixed level of the full event, this is so that the downstream policy
// can be applied per sink.
// TODO: this needs benchmarking before the API moves to beta to determine the effect this has on the apiserver
func (d *dynamicPolicyChecker) LevelAndStages(authorizer.Attributes) (audit.Level, []audit.Stage) {
return audit.LevelRequestResponse, []audit.Stage{}
}

2
vendor/k8s.io/apiserver/pkg/audit/policy/reader.go generated vendored
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@ -28,7 +28,7 @@ import (
"k8s.io/apiserver/pkg/apis/audit/validation"
"k8s.io/apiserver/pkg/audit"
"k8s.io/klog"
"k8s.io/klog/v2"
)
var (

6
vendor/k8s.io/apiserver/pkg/audit/request.go generated vendored
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@ -24,7 +24,7 @@ import (
"time"
"github.com/google/uuid"
"k8s.io/klog"
"k8s.io/klog/v2"
authnv1 "k8s.io/api/authentication/v1"
"k8s.io/apimachinery/pkg/api/meta"
@ -88,6 +88,10 @@ func NewEventFromRequest(req *http.Request, level auditinternal.Level, attribs a
}
}
for _, kv := range auditAnnotationsFrom(req.Context()) {
LogAnnotation(ev, kv.key, kv.value)
}
return ev, nil
}

49
vendor/k8s.io/apiserver/pkg/audit/util/conversion.go generated vendored
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@ -1,49 +0,0 @@
/*
Copyright 2018 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 util
import (
"k8s.io/api/auditregistration/v1alpha1"
"k8s.io/apiserver/pkg/util/webhook"
)
// HookClientConfigForSink constructs a webhook.ClientConfig using a v1alpha1.AuditSink API object.
// webhook.ClientConfig is used to create a HookClient and the purpose of the config struct is to
// share that with other packages that need to create a HookClient.
func HookClientConfigForSink(a *v1alpha1.AuditSink) webhook.ClientConfig {
c := a.Spec.Webhook.ClientConfig
ret := webhook.ClientConfig{Name: a.Name, CABundle: c.CABundle}
if c.URL != nil {
ret.URL = *c.URL
}
if c.Service != nil {
ret.Service = &webhook.ClientConfigService{
Name: c.Service.Name,
Namespace: c.Service.Namespace,
}
if c.Service.Port != nil {
ret.Service.Port = *c.Service.Port
} else {
ret.Service.Port = 443
}
if c.Service.Path != nil {
ret.Service.Path = *c.Service.Path
}
}
return ret
}