DevFW-CICD/ingress-nginx-helm
6
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Update go dependencies

Browse source
This commit is contained in:
Manuel Alejandro de Brito Fontes 2020-03-24 10:44:24 -03:00
parent a46126a034
commit 3eafaa35a1
1108 changed files with 32555 additions and 83490 deletions
Download patch file Download diff file Expand all files Collapse all files

9
vendor/k8s.io/apiserver/pkg/apis/audit/OWNERS generated vendored Normal file
View file

@ -0,0 +1,9 @@
# See the OWNERS docs at https://go.k8s.io/owners
# approval on api packages bubbles to api-approvers
reviewers:
- sig-auth-audit-approvers
- sig-auth-audit-reviewers
labels:
- sig/auth

20
vendor/k8s.io/apiserver/pkg/apis/audit/doc.go generated vendored Normal file
View file

@ -0,0 +1,20 @@
/*
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.
*/
// +k8s:deepcopy-gen=package
// +groupName=audit.k8s.io
package audit // import "k8s.io/apiserver/pkg/apis/audit"

38
vendor/k8s.io/apiserver/pkg/apis/audit/helpers.go generated vendored Normal file
View file

@ -0,0 +1,38 @@
/*
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.
*/
package audit
func ordLevel(l Level) int {
switch l {
case LevelMetadata:
return 1
case LevelRequest:
return 2
case LevelRequestResponse:
return 3
default:
return 0
}
}
func (a Level) Less(b Level) bool {
return ordLevel(a) < ordLevel(b)
}
func (a Level) GreaterOrEqual(b Level) bool {
return ordLevel(a) >= ordLevel(b)
}

53
vendor/k8s.io/apiserver/pkg/apis/audit/register.go generated vendored Normal file
View file

@ -0,0 +1,53 @@
/*
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.
*/
package audit
import (
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
)
// GroupName is the group name use in this package
const GroupName = "audit.k8s.io"
// SchemeGroupVersion is group version used to register these objects
var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: runtime.APIVersionInternal}
// Kind takes an unqualified kind and returns a Group qualified GroupKind
func Kind(kind string) schema.GroupKind {
return SchemeGroupVersion.WithKind(kind).GroupKind()
}
// Resource takes an unqualified resource and returns a Group qualified GroupResource
func Resource(resource string) schema.GroupResource {
return SchemeGroupVersion.WithResource(resource).GroupResource()
}
var (
SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
AddToScheme = SchemeBuilder.AddToScheme
)
func addKnownTypes(scheme *runtime.Scheme) error {
scheme.AddKnownTypes(SchemeGroupVersion,
&Event{},
&EventList{},
&Policy{},
&PolicyList{},
)
return nil
}

286
vendor/k8s.io/apiserver/pkg/apis/audit/types.go generated vendored Normal file
View file

@ -0,0 +1,286 @@
/*
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.
*/
package audit
import (
authnv1 "k8s.io/api/authentication/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
)
// Header keys used by the audit system.
const (
// Header to hold the audit ID as the request is propagated through the serving hierarchy. The
// Audit-ID header should be set by the first server to receive the request (e.g. the federation
// server or kube-aggregator).
//
// Audit ID is also returned to client by http response header.
// It's not guaranteed Audit-Id http header is sent for all requests. When kube-apiserver didn't
// audit the events according to the audit policy, no Audit-ID is returned. Also, for request to
// pods/exec, pods/attach, pods/proxy, kube-apiserver works like a proxy and redirect the request
// to kubelet node, users will only get http headers sent from kubelet node, so no Audit-ID is
// sent when users run command like "kubectl exec" or "kubectl attach".
HeaderAuditID = "Audit-ID"
)
// Level defines the amount of information logged during auditing
type Level string
// Valid audit levels
const (
// LevelNone disables auditing
LevelNone Level = "None"
// LevelMetadata provides the basic level of auditing.
LevelMetadata Level = "Metadata"
// LevelRequest provides Metadata level of auditing, and additionally
// logs the request object (does not apply for non-resource requests).
LevelRequest Level = "Request"
// LevelRequestResponse provides Request level of auditing, and additionally
// logs the response object (does not apply for non-resource requests).
LevelRequestResponse Level = "RequestResponse"
)
// Stage defines the stages in request handling that audit events may be generated.
type Stage string
// Valid audit stages.
const (
// The stage for events generated as soon as the audit handler receives the request, and before it
// is delegated down the handler chain.
StageRequestReceived = "RequestReceived"
// The stage for events generated once the response headers are sent, but before the response body
// is sent. This stage is only generated for long-running requests (e.g. watch).
StageResponseStarted = "ResponseStarted"
// The stage for events generated once the response body has been completed, and no more bytes
// will be sent.
StageResponseComplete = "ResponseComplete"
// The stage for events generated when a panic occurred.
StagePanic = "Panic"
)
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// Event captures all the information that can be included in an API audit log.
type Event struct {
metav1.TypeMeta
// AuditLevel at which event was generated
Level Level
// Unique audit ID, generated for each request.
AuditID types.UID
// Stage of the request handling when this event instance was generated.
Stage Stage
// RequestURI is the request URI as sent by the client to a server.
RequestURI string
// Verb is the kubernetes verb associated with the request.
// For non-resource requests, this is the lower-cased HTTP method.
Verb string
// Authenticated user information.
User authnv1.UserInfo
// Impersonated user information.
// +optional
ImpersonatedUser *authnv1.UserInfo
// Source IPs, from where the request originated and intermediate proxies.
// +optional
SourceIPs []string
// UserAgent records the user agent string reported by the client.
// Note that the UserAgent is provided by the client, and must not be trusted.
// +optional
UserAgent string
// Object reference this request is targeted at.
// Does not apply for List-type requests, or non-resource requests.
// +optional
ObjectRef *ObjectReference
// The response status, populated even when the ResponseObject is not a Status type.
// For successful responses, this will only include the Code. For non-status type
// error responses, this will be auto-populated with the error Message.
// +optional
ResponseStatus *metav1.Status
// API object from the request, in JSON format. The RequestObject is recorded as-is in the request
// (possibly re-encoded as JSON), prior to version conversion, defaulting, admission or
// merging. It is an external versioned object type, and may not be a valid object on its own.
// Omitted for non-resource requests. Only logged at Request Level and higher.
// +optional
RequestObject *runtime.Unknown
// API object returned in the response, in JSON. The ResponseObject is recorded after conversion
// to the external type, and serialized as JSON. Omitted for non-resource requests. Only logged
// at Response Level.
// +optional
ResponseObject *runtime.Unknown
// Time the request reached the apiserver.
RequestReceivedTimestamp metav1.MicroTime
// Time the request reached current audit stage.
StageTimestamp metav1.MicroTime
// Annotations is an unstructured key value map stored with an audit event that may be set by
// plugins invoked in the request serving chain, including authentication, authorization and
// admission plugins. Note that these annotations are for the audit event, and do not correspond
// to the metadata.annotations of the submitted object. Keys should uniquely identify the informing
// component to avoid name collisions (e.g. podsecuritypolicy.admission.k8s.io/policy). Values
// should be short. Annotations are included in the Metadata level.
// +optional
Annotations map[string]string
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// EventList is a list of audit Events.
type EventList struct {
metav1.TypeMeta
// +optional
metav1.ListMeta
Items []Event
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// Policy defines the configuration of audit logging, and the rules for how different request
// categories are logged.
type Policy struct {
metav1.TypeMeta
// ObjectMeta is included for interoperability with API infrastructure.
// +optional
metav1.ObjectMeta
// Rules specify the audit Level a request should be recorded at.
// A request may match multiple rules, in which case the FIRST matching rule is used.
// The default audit level is None, but can be overridden by a catch-all rule at the end of the list.
// PolicyRules are strictly ordered.
Rules []PolicyRule
// OmitStages is a list of stages for which no events are created. Note that this can also
// be specified per rule in which case the union of both are omitted.
// +optional
OmitStages []Stage
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// PolicyList is a list of audit Policies.
type PolicyList struct {
metav1.TypeMeta
// +optional
metav1.ListMeta
Items []Policy
}
// PolicyRule maps requests based off metadata to an audit Level.
// Requests must match the rules of every field (an intersection of rules).
type PolicyRule struct {
// The Level that requests matching this rule are recorded at.
Level Level
// The users (by authenticated user name) this rule applies to.
// An empty list implies every user.
// +optional
Users []string
// The user groups this rule applies to. A user is considered matching
// if it is a member of any of the UserGroups.
// An empty list implies every user group.
// +optional
UserGroups []string
// The verbs that match this rule.
// An empty list implies every verb.
// +optional
Verbs []string
// Rules can apply to API resources (such as "pods" or "secrets"),
// non-resource URL paths (such as "/api"), or neither, but not both.
// If neither is specified, the rule is treated as a default for all URLs.
// Resources that this rule matches. An empty list implies all kinds in all API groups.
// +optional
Resources []GroupResources
// Namespaces that this rule matches.
// The empty string "" matches non-namespaced resources.
// An empty list implies every namespace.
// +optional
Namespaces []string
// NonResourceURLs is a set of URL paths that should be audited.
// *s are allowed, but only as the full, final step in the path.
// Examples:
// "/metrics" - Log requests for apiserver metrics
// "/healthz*" - Log all health checks
// +optional
NonResourceURLs []string
// OmitStages is a list of stages for which no events are created. Note that this can also
// be specified policy wide in which case the union of both are omitted.
// An empty list means no restrictions will apply.
// +optional
OmitStages []Stage
}
// GroupResources represents resource kinds in an API group.
type GroupResources struct {
// Group is the name of the API group that contains the resources.
// The empty string represents the core API group.
// +optional
Group string
// Resources is a list of resources this rule applies to.
//
// For example:
// 'pods' matches pods.
// 'pods/log' matches the log subresource of pods.
// '*' matches all resources and their subresources.
// 'pods/*' matches all subresources of pods.
// '*/scale' matches all scale subresources.
//
// If wildcard is present, the validation rule will ensure resources do not
// overlap with each other.
//
// An empty list implies all resources and subresources in this API groups apply.
// +optional
Resources []string
// ResourceNames is a list of resource instance names that the policy matches.
// Using this field requires Resources to be specified.
// An empty list implies that every instance of the resource is matched.
// +optional
ResourceNames []string
}
// ObjectReference contains enough information to let you inspect or modify the referred object.
type ObjectReference struct {
// +optional
Resource string
// +optional
Namespace string
// +optional
Name string
// +optional
UID types.UID
// APIGroup is the name of the API group that contains the referred object.
// The empty string represents the core API group.
// +optional
APIGroup string
// APIVersion is the version of the API group that contains the referred object.
// +optional
APIVersion string
// +optional
ResourceVersion string
// +optional
Subresource string
}

291
vendor/k8s.io/apiserver/pkg/apis/audit/zz_generated.deepcopy.go generated vendored Normal file
View file

@ -0,0 +1,291 @@
// +build !ignore_autogenerated
/*
Copyright 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.
*/
// Code generated by deepcopy-gen. DO NOT EDIT.
package audit
import (
v1 "k8s.io/api/authentication/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
runtime "k8s.io/apimachinery/pkg/runtime"
)
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *Event) DeepCopyInto(out *Event) {
*out = *in
out.TypeMeta = in.TypeMeta
in.User.DeepCopyInto(&out.User)
if in.ImpersonatedUser != nil {
in, out := &in.ImpersonatedUser, &out.ImpersonatedUser
*out = new(v1.UserInfo)
(*in).DeepCopyInto(*out)
}
if in.SourceIPs != nil {
in, out := &in.SourceIPs, &out.SourceIPs
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.ObjectRef != nil {
in, out := &in.ObjectRef, &out.ObjectRef
*out = new(ObjectReference)
**out = **in
}
if in.ResponseStatus != nil {
in, out := &in.ResponseStatus, &out.ResponseStatus
*out = new(metav1.Status)
(*in).DeepCopyInto(*out)
}
if in.RequestObject != nil {
in, out := &in.RequestObject, &out.RequestObject
*out = new(runtime.Unknown)
(*in).DeepCopyInto(*out)
}
if in.ResponseObject != nil {
in, out := &in.ResponseObject, &out.ResponseObject
*out = new(runtime.Unknown)
(*in).DeepCopyInto(*out)
}
in.RequestReceivedTimestamp.DeepCopyInto(&out.RequestReceivedTimestamp)
in.StageTimestamp.DeepCopyInto(&out.StageTimestamp)
if in.Annotations != nil {
in, out := &in.Annotations, &out.Annotations
*out = make(map[string]string, len(*in))
for key, val := range *in {
(*out)[key] = val
}
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Event.
func (in *Event) DeepCopy() *Event {
if in == nil {
return nil
}
out := new(Event)
in.DeepCopyInto(out)
return out
}
// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
func (in *Event) DeepCopyObject() runtime.Object {
if c := in.DeepCopy(); c != nil {
return c
}
return nil
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *EventList) DeepCopyInto(out *EventList) {
*out = *in
out.TypeMeta = in.TypeMeta
in.ListMeta.DeepCopyInto(&out.ListMeta)
if in.Items != nil {
in, out := &in.Items, &out.Items
*out = make([]Event, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new EventList.
func (in *EventList) DeepCopy() *EventList {
if in == nil {
return nil
}
out := new(EventList)
in.DeepCopyInto(out)
return out
}
// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
func (in *EventList) DeepCopyObject() runtime.Object {
if c := in.DeepCopy(); c != nil {
return c
}
return nil
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *GroupResources) DeepCopyInto(out *GroupResources) {
*out = *in
if in.Resources != nil {
in, out := &in.Resources, &out.Resources
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.ResourceNames != nil {
in, out := &in.ResourceNames, &out.ResourceNames
*out = make([]string, len(*in))
copy(*out, *in)
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new GroupResources.
func (in *GroupResources) DeepCopy() *GroupResources {
if in == nil {
return nil
}
out := new(GroupResources)
in.DeepCopyInto(out)
return out
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *ObjectReference) DeepCopyInto(out *ObjectReference) {
*out = *in
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ObjectReference.
func (in *ObjectReference) DeepCopy() *ObjectReference {
if in == nil {
return nil
}
out := new(ObjectReference)
in.DeepCopyInto(out)
return out
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *Policy) DeepCopyInto(out *Policy) {
*out = *in
out.TypeMeta = in.TypeMeta
in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
if in.Rules != nil {
in, out := &in.Rules, &out.Rules
*out = make([]PolicyRule, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
if in.OmitStages != nil {
in, out := &in.OmitStages, &out.OmitStages
*out = make([]Stage, len(*in))
copy(*out, *in)
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Policy.
func (in *Policy) DeepCopy() *Policy {
if in == nil {
return nil
}
out := new(Policy)
in.DeepCopyInto(out)
return out
}
// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
func (in *Policy) DeepCopyObject() runtime.Object {
if c := in.DeepCopy(); c != nil {
return c
}
return nil
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *PolicyList) DeepCopyInto(out *PolicyList) {
*out = *in
out.TypeMeta = in.TypeMeta
in.ListMeta.DeepCopyInto(&out.ListMeta)
if in.Items != nil {
in, out := &in.Items, &out.Items
*out = make([]Policy, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PolicyList.
func (in *PolicyList) DeepCopy() *PolicyList {
if in == nil {
return nil
}
out := new(PolicyList)
in.DeepCopyInto(out)
return out
}
// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
func (in *PolicyList) DeepCopyObject() runtime.Object {
if c := in.DeepCopy(); c != nil {
return c
}
return nil
}
// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
func (in *PolicyRule) DeepCopyInto(out *PolicyRule) {
*out = *in
if in.Users != nil {
in, out := &in.Users, &out.Users
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.UserGroups != nil {
in, out := &in.UserGroups, &out.UserGroups
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.Verbs != nil {
in, out := &in.Verbs, &out.Verbs
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.Resources != nil {
in, out := &in.Resources, &out.Resources
*out = make([]GroupResources, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
if in.Namespaces != nil {
in, out := &in.Namespaces, &out.Namespaces
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.NonResourceURLs != nil {
in, out := &in.NonResourceURLs, &out.NonResourceURLs
*out = make([]string, len(*in))
copy(*out, *in)
}
if in.OmitStages != nil {
in, out := &in.OmitStages, &out.OmitStages
*out = make([]Stage, len(*in))
copy(*out, *in)
}
return
}
// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new PolicyRule.
func (in *PolicyRule) DeepCopy() *PolicyRule {
if in == nil {
return nil
}
out := new(PolicyRule)
in.DeepCopyInto(out)
return out
}

19
vendor/k8s.io/apiserver/pkg/authentication/user/doc.go generated vendored Normal file
View file

@ -0,0 +1,19 @@
/*
Copyright 2014 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 user contains utilities for dealing with simple user exchange in the auth
// packages. The user.Info interface defines an interface for exchanging that info.
package user // import "k8s.io/apiserver/pkg/authentication/user"

83
vendor/k8s.io/apiserver/pkg/authentication/user/user.go generated vendored Normal file
View file

@ -0,0 +1,83 @@
/*
Copyright 2014 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 user
// Info describes a user that has been authenticated to the system.
type Info interface {
// GetName returns the name that uniquely identifies this user among all
// other active users.
GetName() string
// GetUID returns a unique value for a particular user that will change
// if the user is removed from the system and another user is added with
// the same name.
GetUID() string
// GetGroups returns the names of the groups the user is a member of
GetGroups() []string
// GetExtra can contain any additional information that the authenticator
// thought was interesting. One example would be scopes on a token.
// Keys in this map should be namespaced to the authenticator or
// authenticator/authorizer pair making use of them.
// For instance: "example.org/foo" instead of "foo"
// This is a map[string][]string because it needs to be serializeable into
// a SubjectAccessReviewSpec.authorization.k8s.io for proper authorization
// delegation flows
// In order to faithfully round-trip through an impersonation flow, these keys
// MUST be lowercase.
GetExtra() map[string][]string
}
// DefaultInfo provides a simple user information exchange object
// for components that implement the UserInfo interface.
type DefaultInfo struct {
Name string
UID string
Groups []string
Extra map[string][]string
}
func (i *DefaultInfo) GetName() string {
return i.Name
}
func (i *DefaultInfo) GetUID() string {
return i.UID
}
func (i *DefaultInfo) GetGroups() []string {
return i.Groups
}
func (i *DefaultInfo) GetExtra() map[string][]string {
return i.Extra
}
// well-known user and group names
const (
SystemPrivilegedGroup = "system:masters"
NodesGroup = "system:nodes"
AllUnauthenticated = "system:unauthenticated"
AllAuthenticated = "system:authenticated"
Anonymous = "system:anonymous"
APIServerUser = "system:apiserver"
// core kubernetes process identities
KubeProxy = "system:kube-proxy"
KubeControllerManager = "system:kube-controller-manager"
KubeScheduler = "system:kube-scheduler"
)

5
vendor/k8s.io/apiserver/pkg/endpoints/metrics/OWNERS generated vendored Normal file
View file

@ -0,0 +1,5 @@
# See the OWNERS docs at https://go.k8s.io/owners
reviewers:
- wojtek-t
- jimmidyson

525
vendor/k8s.io/apiserver/pkg/endpoints/metrics/metrics.go generated vendored Normal file
View file

@ -0,0 +1,525 @@
/*
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 metrics
import (
"bufio"
"net"
"net/http"
"net/url"
"regexp"
"strconv"
"strings"
"sync"
"time"
restful "github.com/emicklei/go-restful"
"k8s.io/apimachinery/pkg/apis/meta/v1/validation"
"k8s.io/apimachinery/pkg/types"
utilsets "k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/features"
utilfeature "k8s.io/apiserver/pkg/util/feature"
compbasemetrics "k8s.io/component-base/metrics"
"k8s.io/component-base/metrics/legacyregistry"
)
// resettableCollector is the interface implemented by prometheus.MetricVec
// that can be used by Prometheus to collect metrics and reset their values.
type resettableCollector interface {
compbasemetrics.Registerable
Reset()
}
const (
APIServerComponent string = "apiserver"
)
/*
* By default, all the following metrics are defined as falling under
* ALPHA stability level https://github.com/kubernetes/enhancements/blob/master/keps/sig-instrumentation/20190404-kubernetes-control-plane-metrics-stability.md#stability-classes)
*
* Promoting the stability level of the metric is a responsibility of the component owner, since it
* involves explicitly acknowledging support for the metric across multiple releases, in accordance with
* the metric stability policy.
*/
var (
// TODO(a-robinson): Add unit tests for the handling of these metrics once
// the upstream library supports it.
requestCounter = compbasemetrics.NewCounterVec(
&compbasemetrics.CounterOpts{
Name: "apiserver_request_total",
Help: "Counter of apiserver requests broken out for each verb, dry run value, group, version, resource, scope, component, and HTTP response contentType and code.",
StabilityLevel: compbasemetrics.ALPHA,
},
// The label_name contentType doesn't follow the label_name convention defined here:
// https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/instrumentation.md
// But changing it would break backwards compatibility. Future label_names
// should be all lowercase and separated by underscores.
[]string{"verb", "dry_run", "group", "version", "resource", "subresource", "scope", "component", "contentType", "code"},
)
longRunningRequestGauge = compbasemetrics.NewGaugeVec(
&compbasemetrics.GaugeOpts{
Name: "apiserver_longrunning_gauge",
Help: "Gauge of all active long-running apiserver requests broken out by verb, group, version, resource, scope and component. Not all requests are tracked this way.",
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"verb", "group", "version", "resource", "subresource", "scope", "component"},
)
requestLatencies = compbasemetrics.NewHistogramVec(
&compbasemetrics.HistogramOpts{
Name: "apiserver_request_duration_seconds",
Help: "Response latency distribution in seconds for each verb, dry run value, group, version, resource, subresource, scope and component.",
// This metric is used for verifying api call latencies SLO,
// as well as tracking regressions in this aspects.
// Thus we customize buckets significantly, to empower both usecases.
Buckets: []float64{0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0,
1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 40, 50, 60},
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"verb", "dry_run", "group", "version", "resource", "subresource", "scope", "component"},
)
responseSizes = compbasemetrics.NewHistogramVec(
&compbasemetrics.HistogramOpts{
Name: "apiserver_response_sizes",
Help: "Response size distribution in bytes for each group, version, verb, resource, subresource, scope and component.",
// Use buckets ranging from 1000 bytes (1KB) to 10^9 bytes (1GB).
Buckets: compbasemetrics.ExponentialBuckets(1000, 10.0, 7),
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"verb", "group", "version", "resource", "subresource", "scope", "component"},
)
// DroppedRequests is a number of requests dropped with 'Try again later' response"
DroppedRequests = compbasemetrics.NewCounterVec(
&compbasemetrics.CounterOpts{
Name: "apiserver_dropped_requests_total",
Help: "Number of requests dropped with 'Try again later' response",
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"requestKind"},
)
// RegisteredWatchers is a number of currently registered watchers splitted by resource.
RegisteredWatchers = compbasemetrics.NewGaugeVec(
&compbasemetrics.GaugeOpts{
Name: "apiserver_registered_watchers",
Help: "Number of currently registered watchers for a given resources",
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"group", "version", "kind"},
)
WatchEvents = compbasemetrics.NewCounterVec(
&compbasemetrics.CounterOpts{
Name: "apiserver_watch_events_total",
Help: "Number of events sent in watch clients",
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"group", "version", "kind"},
)
WatchEventsSizes = compbasemetrics.NewHistogramVec(
&compbasemetrics.HistogramOpts{
Name: "apiserver_watch_events_sizes",
Help: "Watch event size distribution in bytes",
Buckets: compbasemetrics.ExponentialBuckets(1024, 2.0, 8), // 1K, 2K, 4K, 8K, ..., 128K.
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"group", "version", "kind"},
)
// Because of volatility of the base metric this is pre-aggregated one. Instead of reporting current usage all the time
// it reports maximal usage during the last second.
currentInflightRequests = compbasemetrics.NewGaugeVec(
&compbasemetrics.GaugeOpts{
Name: "apiserver_current_inflight_requests",
Help: "Maximal number of currently used inflight request limit of this apiserver per request kind in last second.",
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"requestKind"},
)
requestTerminationsTotal = compbasemetrics.NewCounterVec(
&compbasemetrics.CounterOpts{
Name: "apiserver_request_terminations_total",
Help: "Number of requests which apiserver terminated in self-defense.",
StabilityLevel: compbasemetrics.ALPHA,
},
[]string{"verb", "group", "version", "resource", "subresource", "scope", "component", "code"},
)
kubectlExeRegexp = regexp.MustCompile(`^.*((?i:kubectl\.exe))`)
metrics = []resettableCollector{
requestCounter,
longRunningRequestGauge,
requestLatencies,
responseSizes,
DroppedRequests,
RegisteredWatchers,
WatchEvents,
WatchEventsSizes,
currentInflightRequests,
requestTerminationsTotal,
}
)
const (
// ReadOnlyKind is a string identifying read only request kind
ReadOnlyKind = "readOnly"
// MutatingKind is a string identifying mutating request kind
MutatingKind = "mutating"
)
var registerMetrics sync.Once
// Register all metrics.
func Register() {
registerMetrics.Do(func() {
for _, metric := range metrics {
legacyregistry.MustRegister(metric)
}
})
}
// Reset all metrics.
func Reset() {
for _, metric := range metrics {
metric.Reset()
}
}
func UpdateInflightRequestMetrics(nonmutating, mutating int) {
currentInflightRequests.WithLabelValues(ReadOnlyKind).Set(float64(nonmutating))
currentInflightRequests.WithLabelValues(MutatingKind).Set(float64(mutating))
}
// RecordRequestTermination records that the request was terminated early as part of a resource
// preservation or apiserver self-defense mechanism (e.g. timeouts, maxinflight throttling,
// proxyHandler errors). RecordRequestTermination should only be called zero or one times
// per request.
func RecordRequestTermination(req *http.Request, requestInfo *request.RequestInfo, component string, code int) {
if requestInfo == nil {
requestInfo = &request.RequestInfo{Verb: req.Method, Path: req.URL.Path}
}
scope := CleanScope(requestInfo)
// We don't use verb from <requestInfo>, as for the healthy path
// MonitorRequest is called from InstrumentRouteFunc which is registered
// in installer.go with predefined list of verbs (different than those
// translated to RequestInfo).
// However, we need to tweak it e.g. to differentiate GET from LIST.
verb := canonicalVerb(strings.ToUpper(req.Method), scope)
if requestInfo.IsResourceRequest {
requestTerminationsTotal.WithLabelValues(cleanVerb(verb, req), requestInfo.APIGroup, requestInfo.APIVersion, requestInfo.Resource, requestInfo.Subresource, scope, component, codeToString(code)).Inc()
} else {
requestTerminationsTotal.WithLabelValues(cleanVerb(verb, req), "", "", "", requestInfo.Path, scope, component, codeToString(code)).Inc()
}
}
// RecordLongRunning tracks the execution of a long running request against the API server. It provides an accurate count
// of the total number of open long running requests. requestInfo may be nil if the caller is not in the normal request flow.
func RecordLongRunning(req *http.Request, requestInfo *request.RequestInfo, component string, fn func()) {
if requestInfo == nil {
requestInfo = &request.RequestInfo{Verb: req.Method, Path: req.URL.Path}
}
var g compbasemetrics.GaugeMetric
scope := CleanScope(requestInfo)
// We don't use verb from <requestInfo>, as for the healthy path
// MonitorRequest is called from InstrumentRouteFunc which is registered
// in installer.go with predefined list of verbs (different than those
// translated to RequestInfo).
// However, we need to tweak it e.g. to differentiate GET from LIST.
reportedVerb := cleanVerb(canonicalVerb(strings.ToUpper(req.Method), scope), req)
if requestInfo.IsResourceRequest {
g = longRunningRequestGauge.WithLabelValues(reportedVerb, requestInfo.APIGroup, requestInfo.APIVersion, requestInfo.Resource, requestInfo.Subresource, scope, component)
} else {
g = longRunningRequestGauge.WithLabelValues(reportedVerb, "", "", "", requestInfo.Path, scope, component)
}
g.Inc()
defer g.Dec()
fn()
}
// MonitorRequest handles standard transformations for client and the reported verb and then invokes Monitor to record
// a request. verb must be uppercase to be backwards compatible with existing monitoring tooling.
func MonitorRequest(req *http.Request, verb, group, version, resource, subresource, scope, component, contentType string, httpCode, respSize int, elapsed time.Duration) {
reportedVerb := cleanVerb(verb, req)
dryRun := cleanDryRun(req.URL)
elapsedSeconds := elapsed.Seconds()
requestCounter.WithLabelValues(reportedVerb, dryRun, group, version, resource, subresource, scope, component, contentType, codeToString(httpCode)).Inc()
requestLatencies.WithLabelValues(reportedVerb, dryRun, group, version, resource, subresource, scope, component).Observe(elapsedSeconds)
// We are only interested in response sizes of read requests.
if verb == "GET" || verb == "LIST" {
responseSizes.WithLabelValues(reportedVerb, group, version, resource, subresource, scope, component).Observe(float64(respSize))
}
}
// InstrumentRouteFunc works like Prometheus' InstrumentHandlerFunc but wraps
// the go-restful RouteFunction instead of a HandlerFunc plus some Kubernetes endpoint specific information.
func InstrumentRouteFunc(verb, group, version, resource, subresource, scope, component string, routeFunc restful.RouteFunction) restful.RouteFunction {
return restful.RouteFunction(func(request *restful.Request, response *restful.Response) {
now := time.Now()
delegate := &ResponseWriterDelegator{ResponseWriter: response.ResponseWriter}
_, cn := response.ResponseWriter.(http.CloseNotifier)
_, fl := response.ResponseWriter.(http.Flusher)
_, hj := response.ResponseWriter.(http.Hijacker)
var rw http.ResponseWriter
if cn && fl && hj {
rw = &fancyResponseWriterDelegator{delegate}
} else {
rw = delegate
}
response.ResponseWriter = rw
routeFunc(request, response)
MonitorRequest(request.Request, verb, group, version, resource, subresource, scope, component, delegate.Header().Get("Content-Type"), delegate.Status(), delegate.ContentLength(), time.Since(now))
})
}
// InstrumentHandlerFunc works like Prometheus' InstrumentHandlerFunc but adds some Kubernetes endpoint specific information.
func InstrumentHandlerFunc(verb, group, version, resource, subresource, scope, component string, handler http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, req *http.Request) {
now := time.Now()
delegate := &ResponseWriterDelegator{ResponseWriter: w}
_, cn := w.(http.CloseNotifier)
_, fl := w.(http.Flusher)
_, hj := w.(http.Hijacker)
if cn && fl && hj {
w = &fancyResponseWriterDelegator{delegate}
} else {
w = delegate
}
handler(w, req)
MonitorRequest(req, verb, group, version, resource, subresource, scope, component, delegate.Header().Get("Content-Type"), delegate.Status(), delegate.ContentLength(), time.Since(now))
}
}
// CleanScope returns the scope of the request.
func CleanScope(requestInfo *request.RequestInfo) string {
if requestInfo.Namespace != "" {
return "namespace"
}
if requestInfo.Name != "" {
return "resource"
}
if requestInfo.IsResourceRequest {
return "cluster"
}
// this is the empty scope
return ""
}
func canonicalVerb(verb string, scope string) string {
switch verb {
case "GET", "HEAD":
if scope != "resource" {
return "LIST"
}
return "GET"
default:
return verb
}
}
func cleanVerb(verb string, request *http.Request) string {
reportedVerb := verb
if verb == "LIST" {
// see apimachinery/pkg/runtime/conversion.go Convert_Slice_string_To_bool
if values := request.URL.Query()["watch"]; len(values) > 0 {
if value := strings.ToLower(values[0]); value != "0" && value != "false" {
reportedVerb = "WATCH"
}
}
}
// normalize the legacy WATCHLIST to WATCH to ensure users aren't surprised by metrics
if verb == "WATCHLIST" {
reportedVerb = "WATCH"
}
if verb == "PATCH" && request.Header.Get("Content-Type") == string(types.ApplyPatchType) && utilfeature.DefaultFeatureGate.Enabled(features.ServerSideApply) {
reportedVerb = "APPLY"
}
return reportedVerb
}
func cleanDryRun(u *url.URL) string {
// avoid allocating when we don't see dryRun in the query
if !strings.Contains(u.RawQuery, "dryRun") {
return ""
}
dryRun := u.Query()["dryRun"]
if errs := validation.ValidateDryRun(nil, dryRun); len(errs) > 0 {
return "invalid"
}
// Since dryRun could be valid with any arbitrarily long length
// we have to dedup and sort the elements before joining them together
// TODO: this is a fairly large allocation for what it does, consider
// a sort and dedup in a single pass
return strings.Join(utilsets.NewString(dryRun...).List(), ",")
}
// ResponseWriterDelegator interface wraps http.ResponseWriter to additionally record content-length, status-code, etc.
type ResponseWriterDelegator struct {
http.ResponseWriter
status int
written int64
wroteHeader bool
}
func (r *ResponseWriterDelegator) WriteHeader(code int) {
r.status = code
r.wroteHeader = true
r.ResponseWriter.WriteHeader(code)
}
func (r *ResponseWriterDelegator) Write(b []byte) (int, error) {
if !r.wroteHeader {
r.WriteHeader(http.StatusOK)
}
n, err := r.ResponseWriter.Write(b)
r.written += int64(n)
return n, err
}
func (r *ResponseWriterDelegator) Status() int {
return r.status
}
func (r *ResponseWriterDelegator) ContentLength() int {
return int(r.written)
}
type fancyResponseWriterDelegator struct {
*ResponseWriterDelegator
}
func (f *fancyResponseWriterDelegator) CloseNotify() <-chan bool {
return f.ResponseWriter.(http.CloseNotifier).CloseNotify()
}
func (f *fancyResponseWriterDelegator) Flush() {
f.ResponseWriter.(http.Flusher).Flush()
}
func (f *fancyResponseWriterDelegator) Hijack() (net.Conn, *bufio.ReadWriter, error) {
return f.ResponseWriter.(http.Hijacker).Hijack()
}
// Small optimization over Itoa
func codeToString(s int) string {
switch s {
case 100:
return "100"
case 101:
return "101"
case 200:
return "200"
case 201:
return "201"
case 202:
return "202"
case 203:
return "203"
case 204:
return "204"
case 205:
return "205"
case 206:
return "206"
case 300:
return "300"
case 301:
return "301"
case 302:
return "302"
case 304:
return "304"
case 305:
return "305"
case 307:
return "307"
case 400:
return "400"
case 401:
return "401"
case 402:
return "402"
case 403:
return "403"
case 404:
return "404"
case 405:
return "405"
case 406:
return "406"
case 407:
return "407"
case 408:
return "408"
case 409:
return "409"
case 410:
return "410"
case 411:
return "411"
case 412:
return "412"
case 413:
return "413"
case 414:
return "414"
case 415:
return "415"
case 416:
return "416"
case 417:
return "417"
case 418:
return "418"
case 500:
return "500"
case 501:
return "501"
case 502:
return "502"
case 503:
return "503"
case 504:
return "504"
case 505:
return "505"
case 428:
return "428"
case 429:
return "429"
case 431:
return "431"
case 511:
return "511"
default:
return strconv.Itoa(s)
}
}

4
vendor/k8s.io/apiserver/pkg/endpoints/request/OWNERS generated vendored Normal file
View file

@ -0,0 +1,4 @@
# See the OWNERS docs at https://go.k8s.io/owners
reviewers:
- sttts

96
vendor/k8s.io/apiserver/pkg/endpoints/request/context.go generated vendored Normal file
View file

@ -0,0 +1,96 @@
/*
Copyright 2014 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 request
import (
"context"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apiserver/pkg/apis/audit"
"k8s.io/apiserver/pkg/authentication/user"
)
// The key type is unexported to prevent collisions
type key int
const (
// namespaceKey is the context key for the request namespace.
namespaceKey key = iota
// userKey is the context key for the request user.
userKey
// auditKey is the context key for the audit event.
auditKey
// audiencesKey is the context key for request audiences.
audiencesKey
)
// NewContext instantiates a base context object for request flows.
func NewContext() context.Context {
return context.TODO()
}
// NewDefaultContext instantiates a base context object for request flows in the default namespace
func NewDefaultContext() context.Context {
return WithNamespace(NewContext(), metav1.NamespaceDefault)
}
// WithValue returns a copy of parent in which the value associated with key is val.
func WithValue(parent context.Context, key interface{}, val interface{}) context.Context {
return context.WithValue(parent, key, val)
}
// WithNamespace returns a copy of parent in which the namespace value is set
func WithNamespace(parent context.Context, namespace string) context.Context {
return WithValue(parent, namespaceKey, namespace)
}
// NamespaceFrom returns the value of the namespace key on the ctx
func NamespaceFrom(ctx context.Context) (string, bool) {
namespace, ok := ctx.Value(namespaceKey).(string)
return namespace, ok
}
// NamespaceValue returns the value of the namespace key on the ctx, or the empty string if none
func NamespaceValue(ctx context.Context) string {
namespace, _ := NamespaceFrom(ctx)
return namespace
}
// WithUser returns a copy of parent in which the user value is set
func WithUser(parent context.Context, user user.Info) context.Context {
return WithValue(parent, userKey, user)
}
// UserFrom returns the value of the user key on the ctx
func UserFrom(ctx context.Context) (user.Info, bool) {
user, ok := ctx.Value(userKey).(user.Info)
return user, ok
}
// WithAuditEvent returns set audit event struct.
func WithAuditEvent(parent context.Context, ev *audit.Event) context.Context {
return WithValue(parent, auditKey, ev)
}
// AuditEventFrom returns the audit event struct on the ctx
func AuditEventFrom(ctx context.Context) *audit.Event {
ev, _ := ctx.Value(auditKey).(*audit.Event)
return ev
}

20
vendor/k8s.io/apiserver/pkg/endpoints/request/doc.go generated vendored Normal file
View file

@ -0,0 +1,20 @@
/*
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 request contains everything around extracting info from
// a http request object.
// TODO: this package is temporary. Handlers must move into pkg/apiserver/handlers to avoid dependency cycle
package request // import "k8s.io/apiserver/pkg/endpoints/request"

274
vendor/k8s.io/apiserver/pkg/endpoints/request/requestinfo.go generated vendored Normal file
View file

@ -0,0 +1,274 @@
/*
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 request
import (
"context"
"fmt"
"net/http"
"strings"
"k8s.io/apimachinery/pkg/api/validation/path"
metainternalversion "k8s.io/apimachinery/pkg/apis/meta/internalversion"
metainternalversionscheme "k8s.io/apimachinery/pkg/apis/meta/internalversion/scheme"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/klog"
)
// LongRunningRequestCheck is a predicate which is true for long-running http requests.
type LongRunningRequestCheck func(r *http.Request, requestInfo *RequestInfo) bool
type RequestInfoResolver interface {
NewRequestInfo(req *http.Request) (*RequestInfo, error)
}
// RequestInfo holds information parsed from the http.Request
type RequestInfo struct {
// IsResourceRequest indicates whether or not the request is for an API resource or subresource
IsResourceRequest bool
// Path is the URL path of the request
Path string
// Verb is the kube verb associated with the request for API requests, not the http verb. This includes things like list and watch.
// for non-resource requests, this is the lowercase http verb
Verb string
APIPrefix string
APIGroup string
APIVersion string
Namespace string
// Resource is the name of the resource being requested. This is not the kind. For example: pods
Resource string
// Subresource is the name of the subresource being requested. This is a different resource, scoped to the parent resource, but it may have a different kind.
// For instance, /pods has the resource "pods" and the kind "Pod", while /pods/foo/status has the resource "pods", the sub resource "status", and the kind "Pod"
// (because status operates on pods). The binding resource for a pod though may be /pods/foo/binding, which has resource "pods", subresource "binding", and kind "Binding".
Subresource string
// Name is empty for some verbs, but if the request directly indicates a name (not in body content) then this field is filled in.
Name string
// Parts are the path parts for the request, always starting with /{resource}/{name}
Parts []string
}
// specialVerbs contains just strings which are used in REST paths for special actions that don't fall under the normal
// CRUDdy GET/POST/PUT/DELETE actions on REST objects.
// TODO: find a way to keep this up to date automatically. Maybe dynamically populate list as handlers added to
// master's Mux.
var specialVerbs = sets.NewString("proxy", "watch")
// specialVerbsNoSubresources contains root verbs which do not allow subresources
var specialVerbsNoSubresources = sets.NewString("proxy")
// namespaceSubresources contains subresources of namespace
// this list allows the parser to distinguish between a namespace subresource, and a namespaced resource
var namespaceSubresources = sets.NewString("status", "finalize")
// NamespaceSubResourcesForTest exports namespaceSubresources for testing in pkg/master/master_test.go, so we never drift
var NamespaceSubResourcesForTest = sets.NewString(namespaceSubresources.List()...)
type RequestInfoFactory struct {
APIPrefixes sets.String // without leading and trailing slashes
GrouplessAPIPrefixes sets.String // without leading and trailing slashes
}
// TODO write an integration test against the swagger doc to test the RequestInfo and match up behavior to responses
// NewRequestInfo returns the information from the http request. If error is not nil, RequestInfo holds the information as best it is known before the failure
// It handles both resource and non-resource requests and fills in all the pertinent information for each.
// Valid Inputs:
// Resource paths
// /apis/{api-group}/{version}/namespaces
// /api/{version}/namespaces
// /api/{version}/namespaces/{namespace}
// /api/{version}/namespaces/{namespace}/{resource}
// /api/{version}/namespaces/{namespace}/{resource}/{resourceName}
// /api/{version}/{resource}
// /api/{version}/{resource}/{resourceName}
//
// Special verbs without subresources:
// /api/{version}/proxy/{resource}/{resourceName}
// /api/{version}/proxy/namespaces/{namespace}/{resource}/{resourceName}
//
// Special verbs with subresources:
// /api/{version}/watch/{resource}
// /api/{version}/watch/namespaces/{namespace}/{resource}
//
// NonResource paths
// /apis/{api-group}/{version}
// /apis/{api-group}
// /apis
// /api/{version}
// /api
// /healthz
// /
func (r *RequestInfoFactory) NewRequestInfo(req *http.Request) (*RequestInfo, error) {
// start with a non-resource request until proven otherwise
requestInfo := RequestInfo{
IsResourceRequest: false,
Path: req.URL.Path,
Verb: strings.ToLower(req.Method),
}
currentParts := splitPath(req.URL.Path)
if len(currentParts) < 3 {
// return a non-resource request
return &requestInfo, nil
}
if !r.APIPrefixes.Has(currentParts[0]) {
// return a non-resource request
return &requestInfo, nil
}
requestInfo.APIPrefix = currentParts[0]
currentParts = currentParts[1:]
if !r.GrouplessAPIPrefixes.Has(requestInfo.APIPrefix) {
// one part (APIPrefix) has already been consumed, so this is actually "do we have four parts?"
if len(currentParts) < 3 {
// return a non-resource request
return &requestInfo, nil
}
requestInfo.APIGroup = currentParts[0]
currentParts = currentParts[1:]
}
requestInfo.IsResourceRequest = true
requestInfo.APIVersion = currentParts[0]
currentParts = currentParts[1:]
// handle input of form /{specialVerb}/*
if specialVerbs.Has(currentParts[0]) {
if len(currentParts) < 2 {
return &requestInfo, fmt.Errorf("unable to determine kind and namespace from url, %v", req.URL)
}
requestInfo.Verb = currentParts[0]
currentParts = currentParts[1:]
} else {
switch req.Method {
case "POST":
requestInfo.Verb = "create"
case "GET", "HEAD":
requestInfo.Verb = "get"
case "PUT":
requestInfo.Verb = "update"
case "PATCH":
requestInfo.Verb = "patch"
case "DELETE":
requestInfo.Verb = "delete"
default:
requestInfo.Verb = ""
}
}
// URL forms: /namespaces/{namespace}/{kind}/*, where parts are adjusted to be relative to kind
if currentParts[0] == "namespaces" {
if len(currentParts) > 1 {
requestInfo.Namespace = currentParts[1]
// if there is another step after the namespace name and it is not a known namespace subresource
// move currentParts to include it as a resource in its own right
if len(currentParts) > 2 && !namespaceSubresources.Has(currentParts[2]) {
currentParts = currentParts[2:]
}
}
} else {
requestInfo.Namespace = metav1.NamespaceNone
}
// parsing successful, so we now know the proper value for .Parts
requestInfo.Parts = currentParts
// parts look like: resource/resourceName/subresource/other/stuff/we/don't/interpret
switch {
case len(requestInfo.Parts) >= 3 && !specialVerbsNoSubresources.Has(requestInfo.Verb):
requestInfo.Subresource = requestInfo.Parts[2]
fallthrough
case len(requestInfo.Parts) >= 2:
requestInfo.Name = requestInfo.Parts[1]
fallthrough
case len(requestInfo.Parts) >= 1:
requestInfo.Resource = requestInfo.Parts[0]
}
// if there's no name on the request and we thought it was a get before, then the actual verb is a list or a watch
if len(requestInfo.Name) == 0 && requestInfo.Verb == "get" {
opts := metainternalversion.ListOptions{}
if err := metainternalversionscheme.ParameterCodec.DecodeParameters(req.URL.Query(), metav1.SchemeGroupVersion, &opts); err != nil {
// An error in parsing request will result in default to "list" and not setting "name" field.
klog.Errorf("Couldn't parse request %#v: %v", req.URL.Query(), err)
// Reset opts to not rely on partial results from parsing.
// However, if watch is set, let's report it.
opts = metainternalversion.ListOptions{}
if values := req.URL.Query()["watch"]; len(values) > 0 {
switch strings.ToLower(values[0]) {
case "false", "0":
default:
opts.Watch = true
}
}
}
if opts.Watch {
requestInfo.Verb = "watch"
} else {
requestInfo.Verb = "list"
}
if opts.FieldSelector != nil {
if name, ok := opts.FieldSelector.RequiresExactMatch("metadata.name"); ok {
if len(path.IsValidPathSegmentName(name)) == 0 {
requestInfo.Name = name
}
}
}
}
// if there's no name on the request and we thought it was a delete before, then the actual verb is deletecollection
if len(requestInfo.Name) == 0 && requestInfo.Verb == "delete" {
requestInfo.Verb = "deletecollection"
}
return &requestInfo, nil
}
type requestInfoKeyType int
// requestInfoKey is the RequestInfo key for the context. It's of private type here. Because
// keys are interfaces and interfaces are equal when the type and the value is equal, this
// does not conflict with the keys defined in pkg/api.
const requestInfoKey requestInfoKeyType = iota
// WithRequestInfo returns a copy of parent in which the request info value is set
func WithRequestInfo(parent context.Context, info *RequestInfo) context.Context {
return WithValue(parent, requestInfoKey, info)
}
// RequestInfoFrom returns the value of the RequestInfo key on the ctx
func RequestInfoFrom(ctx context.Context) (*RequestInfo, bool) {
info, ok := ctx.Value(requestInfoKey).(*RequestInfo)
return info, ok
}
// splitPath returns the segments for a URL path.
func splitPath(path string) []string {
path = strings.Trim(path, "/")
if path == "" {
return []string{}
}
return strings.Split(path, "/")
}

14
vendor/k8s.io/apiserver/pkg/features/kube_features.go generated vendored
View file

@ -33,13 +33,16 @@ const (
// owner: @tallclair
// alpha: v1.5
// beta: v1.6
// deprecated: v1.18
//
// StreamingProxyRedirects controls whether the apiserver should intercept (and follow)
// redirects from the backend (Kubelet) for streaming requests (exec/attach/port-forward).
//
// This feature is deprecated, and will be removed in v1.22.
StreamingProxyRedirects featuregate.Feature = "StreamingProxyRedirects"
// owner: @tallclair
// alpha: v1.10
// alpha: v1.12
// beta: v1.14
//
// ValidateProxyRedirects controls whether the apiserver should validate that redirects are only
@ -140,6 +143,12 @@ const (
//
// Deprecates and removes SelfLink from ObjectMeta and ListMeta.
RemoveSelfLink featuregate.Feature = "RemoveSelfLink"
// owner: @shaloulcy
// alpha: v1.18
//
// Allows label and field based indexes in apiserver watch cache to accelerate list operations.
SelectorIndex featuregate.Feature = "SelectorIndex"
)
func init() {
@ -150,7 +159,7 @@ func init() {
// To add a new feature, define a key for it above and add it here. The features will be
// available throughout Kubernetes binaries.
var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
StreamingProxyRedirects: {Default: true, PreRelease: featuregate.Beta},
StreamingProxyRedirects: {Default: true, PreRelease: featuregate.Deprecated},
ValidateProxyRedirects: {Default: true, PreRelease: featuregate.Beta},
AdvancedAuditing: {Default: true, PreRelease: featuregate.GA},
DynamicAuditing: {Default: false, PreRelease: featuregate.Alpha},
@ -165,4 +174,5 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
WatchBookmark: {Default: true, PreRelease: featuregate.GA, LockToDefault: true},
APIPriorityAndFairness: {Default: false, PreRelease: featuregate.Alpha},
RemoveSelfLink: {Default: false, PreRelease: featuregate.Alpha},
SelectorIndex: {Default: false, PreRelease: featuregate.Alpha},
}

11
vendor/k8s.io/apiserver/pkg/server/healthz/healthz.go generated vendored
View file

@ -27,6 +27,7 @@ import (
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apiserver/pkg/endpoints/metrics"
"k8s.io/apiserver/pkg/server/httplog"
"k8s.io/klog"
)
@ -122,7 +123,15 @@ func InstallPathHandler(mux mux, path string, checks ...HealthChecker) {
klog.V(5).Infof("Installing health checkers for (%v): %v", path, formatQuoted(checkerNames(checks...)...))
mux.Handle(path, handleRootHealthz(checks...))
mux.Handle(path,
metrics.InstrumentHandlerFunc("GET",
/* group = */ "",
/* version = */ "",
/* resource = */ "",
/* subresource = */ path,
/* scope = */ "",
/* component = */ "",
handleRootHealthz(checks...)))
for _, check := range checks {
mux.Handle(fmt.Sprintf("%s/%v", path, check.Name()), adaptCheckToHandler(check.Check))
}

12
vendor/k8s.io/apiserver/pkg/server/httplog/httplog.go generated vendored
View file

@ -158,9 +158,17 @@ func (rl *respLogger) Log() {
latency := time.Since(rl.startTime)
if klog.V(3) {
if !rl.hijacked {
klog.InfoDepth(1, fmt.Sprintf("%s %s: (%v) %v%v%v [%s %s]", rl.req.Method, rl.req.RequestURI, latency, rl.status, rl.statusStack, rl.addedInfo, rl.req.UserAgent(), rl.req.RemoteAddr))
klog.InfoDepth(1, fmt.Sprintf("verb=%q URI=%q latency=%v resp=%v UserAgent=%q srcIP=%q: %v%v",
rl.req.Method, rl.req.RequestURI,
latency, rl.status,
rl.req.UserAgent(), rl.req.RemoteAddr,
rl.statusStack, rl.addedInfo,
))
} else {
klog.InfoDepth(1, fmt.Sprintf("%s %s: (%v) hijacked [%s %s]", rl.req.Method, rl.req.RequestURI, latency, rl.req.UserAgent(), rl.req.RemoteAddr))
klog.InfoDepth(1, fmt.Sprintf("verb=%q URI=%q latency=%v UserAgent=%q srcIP=%q: hijacked",
rl.req.Method, rl.req.RequestURI,
latency, rl.req.UserAgent(), rl.req.RemoteAddr,
))
}
}
}