Update go dependencies
This commit is contained in:
parent
e0561ddeb9
commit
88a2751234
1970 changed files with 413928 additions and 222867 deletions
18
vendor/k8s.io/kubernetes/pkg/controller/.import-restrictions
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vendored
18
vendor/k8s.io/kubernetes/pkg/controller/.import-restrictions
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@ -1,18 +0,0 @@
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{
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"Rules": [
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{
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"SelectorRegexp": "k8s[.]io/kubernetes/pkg/client/unversioned$",
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"ForbiddenPrefixes": [
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"k8s.io/kubernetes/pkg/client/unversioned"
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]
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},
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{
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"SelectorRegexp": "k8s[.]io/kubernetes/pkg/client/unversioned/testclient$",
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"ForbiddenPrefixes": [
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"k8s.io/kubernetes/pkg/client/unversioned/testclient"
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]
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}
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]
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}
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70
vendor/k8s.io/kubernetes/pkg/controller/BUILD
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70
vendor/k8s.io/kubernetes/pkg/controller/BUILD
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@ -1,70 +0,0 @@
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package(default_visibility = ["//visibility:public"])
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licenses(["notice"])
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load(
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"@io_bazel_rules_go//go:def.bzl",
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"go_binary",
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"go_library",
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"go_test",
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"cgo_library",
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)
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go_library(
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name = "go_default_library",
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srcs = [
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"client_builder.go",
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"controller_ref_manager.go",
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"controller_utils.go",
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"doc.go",
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"lookup_cache.go",
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],
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tags = ["automanaged"],
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deps = [
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"//pkg/api:go_default_library",
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"//pkg/api/errors:go_default_library",
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"//pkg/api/meta:go_default_library",
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"//pkg/api/unversioned:go_default_library",
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"//pkg/api/validation:go_default_library",
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"//pkg/apis/extensions:go_default_library",
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"//pkg/client/cache:go_default_library",
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"//pkg/client/clientset_generated/internalclientset:go_default_library",
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"//pkg/client/clientset_generated/internalclientset/typed/core/internalversion:go_default_library",
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"//pkg/client/record:go_default_library",
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"//pkg/client/restclient:go_default_library",
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"//pkg/fields:go_default_library",
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"//pkg/labels:go_default_library",
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"//pkg/runtime:go_default_library",
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"//pkg/serviceaccount:go_default_library",
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"//pkg/util/clock:go_default_library",
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"//pkg/util/hash:go_default_library",
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"//pkg/util/integer:go_default_library",
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"//pkg/util/sets:go_default_library",
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"//pkg/watch:go_default_library",
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"//vendor:github.com/golang/glog",
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"//vendor:github.com/golang/groupcache/lru",
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],
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)
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go_test(
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name = "go_default_test",
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srcs = ["controller_utils_test.go"],
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library = "go_default_library",
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tags = ["automanaged"],
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deps = [
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"//pkg/api:go_default_library",
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"//pkg/api/testapi:go_default_library",
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"//pkg/api/unversioned:go_default_library",
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"//pkg/apimachinery/registered:go_default_library",
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"//pkg/client/cache:go_default_library",
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"//pkg/client/clientset_generated/internalclientset:go_default_library",
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"//pkg/client/record:go_default_library",
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"//pkg/client/restclient:go_default_library",
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"//pkg/runtime:go_default_library",
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"//pkg/securitycontext:go_default_library",
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"//pkg/util/clock:go_default_library",
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"//pkg/util/sets:go_default_library",
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"//pkg/util/testing:go_default_library",
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"//pkg/util/uuid:go_default_library",
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],
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)
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4
vendor/k8s.io/kubernetes/pkg/controller/OWNERS
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4
vendor/k8s.io/kubernetes/pkg/controller/OWNERS
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@ -1,4 +0,0 @@
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assignees:
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- bprashanth
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- derekwaynecarr
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- mikedanese
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166
vendor/k8s.io/kubernetes/pkg/controller/client_builder.go
generated
vendored
166
vendor/k8s.io/kubernetes/pkg/controller/client_builder.go
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@ -1,166 +0,0 @@
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/*
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Copyright 2016 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 controller
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import (
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"fmt"
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"time"
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"k8s.io/kubernetes/pkg/api"
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apierrors "k8s.io/kubernetes/pkg/api/errors"
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"k8s.io/kubernetes/pkg/client/cache"
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clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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unversionedcore "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
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"k8s.io/kubernetes/pkg/client/restclient"
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"k8s.io/kubernetes/pkg/fields"
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"k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/serviceaccount"
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"k8s.io/kubernetes/pkg/watch"
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"github.com/golang/glog"
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)
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// ControllerClientBuilder allow syou to get clients and configs for controllers
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type ControllerClientBuilder interface {
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Config(name string) (*restclient.Config, error)
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Client(name string) (clientset.Interface, error)
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ClientOrDie(name string) clientset.Interface
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}
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// SimpleControllerClientBuilder returns a fixed client with different user agents
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type SimpleControllerClientBuilder struct {
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// ClientConfig is a skeleton config to clone and use as the basis for each controller client
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ClientConfig *restclient.Config
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}
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func (b SimpleControllerClientBuilder) Config(name string) (*restclient.Config, error) {
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clientConfig := *b.ClientConfig
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return &clientConfig, nil
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}
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func (b SimpleControllerClientBuilder) Client(name string) (clientset.Interface, error) {
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clientConfig, err := b.Config(name)
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if err != nil {
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return nil, err
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}
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return clientset.NewForConfig(restclient.AddUserAgent(clientConfig, name))
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}
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func (b SimpleControllerClientBuilder) ClientOrDie(name string) clientset.Interface {
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client, err := b.Client(name)
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if err != nil {
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glog.Fatal(err)
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}
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return client
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}
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// SAControllerClientBuilder is a ControllerClientBuilder that returns clients identifying as
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// service accounts
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type SAControllerClientBuilder struct {
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// ClientConfig is a skeleton config to clone and use as the basis for each controller client
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ClientConfig *restclient.Config
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// CoreClient is used to provision service accounts if needed and watch for their associated tokens
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// to construct a controller client
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CoreClient unversionedcore.CoreInterface
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// Namespace is the namespace used to host the service accounts that will back the
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// controllers. It must be highly privileged namespace which normal users cannot inspect.
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Namespace string
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}
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// config returns a complete clientConfig for constructing clients. This is separate in anticipation of composition
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// which means that not all clientsets are known here
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func (b SAControllerClientBuilder) Config(name string) (*restclient.Config, error) {
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clientConfig := restclient.AnonymousClientConfig(b.ClientConfig)
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// we need the SA UID to find a matching SA token
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sa, err := b.CoreClient.ServiceAccounts(b.Namespace).Get(name)
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if err != nil && !apierrors.IsNotFound(err) {
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return nil, err
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} else if apierrors.IsNotFound(err) {
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// check to see if the namespace exists. If it isn't a NotFound, just try to create the SA.
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// It'll probably fail, but perhaps that will have a better message.
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if _, err := b.CoreClient.Namespaces().Get(b.Namespace); apierrors.IsNotFound(err) {
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_, err = b.CoreClient.Namespaces().Create(&api.Namespace{ObjectMeta: api.ObjectMeta{Name: b.Namespace}})
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if err != nil && !apierrors.IsAlreadyExists(err) {
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return nil, err
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}
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}
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sa, err = b.CoreClient.ServiceAccounts(b.Namespace).Create(
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&api.ServiceAccount{ObjectMeta: api.ObjectMeta{Namespace: b.Namespace, Name: name}})
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if err != nil {
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return nil, err
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}
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}
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lw := &cache.ListWatch{
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ListFunc: func(options api.ListOptions) (runtime.Object, error) {
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options.FieldSelector = fields.SelectorFromSet(map[string]string{api.SecretTypeField: string(api.SecretTypeServiceAccountToken)})
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return b.CoreClient.Secrets(b.Namespace).List(options)
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},
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WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
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options.FieldSelector = fields.SelectorFromSet(map[string]string{api.SecretTypeField: string(api.SecretTypeServiceAccountToken)})
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return b.CoreClient.Secrets(b.Namespace).Watch(options)
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},
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}
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_, err = cache.ListWatchUntil(30*time.Second, lw,
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func(event watch.Event) (bool, error) {
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switch event.Type {
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case watch.Deleted:
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return false, nil
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case watch.Error:
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return false, fmt.Errorf("error watching")
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case watch.Added, watch.Modified:
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secret := event.Object.(*api.Secret)
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if !serviceaccount.IsServiceAccountToken(secret, sa) ||
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len(secret.Data[api.ServiceAccountTokenKey]) == 0 {
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return false, nil
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}
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// TODO maybe verify the token is valid
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clientConfig.BearerToken = string(secret.Data[api.ServiceAccountTokenKey])
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restclient.AddUserAgent(clientConfig, serviceaccount.MakeUsername(b.Namespace, name))
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return true, nil
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default:
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return false, fmt.Errorf("unexpected event type: %v", event.Type)
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}
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})
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if err != nil {
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return nil, fmt.Errorf("unable to get token for service account: %v", err)
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}
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return clientConfig, nil
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}
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func (b SAControllerClientBuilder) Client(name string) (clientset.Interface, error) {
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clientConfig, err := b.Config(name)
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if err != nil {
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return nil, err
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}
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return clientset.NewForConfig(clientConfig)
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}
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func (b SAControllerClientBuilder) ClientOrDie(name string) clientset.Interface {
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client, err := b.Client(name)
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if err != nil {
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glog.Fatal(err)
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}
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return client
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}
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144
vendor/k8s.io/kubernetes/pkg/controller/controller_ref_manager.go
generated
vendored
144
vendor/k8s.io/kubernetes/pkg/controller/controller_ref_manager.go
generated
vendored
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@ -1,144 +0,0 @@
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/*
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Copyright 2016 The Kubernetes Authors.
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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.
|
||||
*/
|
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package controller
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import (
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"fmt"
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"strings"
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/errors"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/labels"
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)
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type PodControllerRefManager struct {
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podControl PodControlInterface
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controllerObject api.ObjectMeta
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controllerSelector labels.Selector
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controllerKind unversioned.GroupVersionKind
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}
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// NewPodControllerRefManager returns a PodControllerRefManager that exposes
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// methods to manage the controllerRef of pods.
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func NewPodControllerRefManager(
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podControl PodControlInterface,
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controllerObject api.ObjectMeta,
|
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controllerSelector labels.Selector,
|
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controllerKind unversioned.GroupVersionKind,
|
||||
) *PodControllerRefManager {
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return &PodControllerRefManager{podControl, controllerObject, controllerSelector, controllerKind}
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}
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// Classify first filters out inactive pods, then it classify the remaining pods
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// into three categories: 1. matchesAndControlled are the pods whose labels
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// match the selector of the RC, and have a controllerRef pointing to the
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// controller 2. matchesNeedsController are the pods whose labels match the RC,
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// but don't have a controllerRef. (Pods with matching labels but with a
|
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// controllerRef pointing to other object are ignored) 3. controlledDoesNotMatch
|
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// are the pods that have a controllerRef pointing to the controller, but their
|
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// labels no longer match the selector.
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func (m *PodControllerRefManager) Classify(pods []*api.Pod) (
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matchesAndControlled []*api.Pod,
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matchesNeedsController []*api.Pod,
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controlledDoesNotMatch []*api.Pod) {
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for i := range pods {
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pod := pods[i]
|
||||
if !IsPodActive(pod) {
|
||||
glog.V(4).Infof("Ignoring inactive pod %v/%v in state %v, deletion time %v",
|
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pod.Namespace, pod.Name, pod.Status.Phase, pod.DeletionTimestamp)
|
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continue
|
||||
}
|
||||
controllerRef := getControllerOf(pod.ObjectMeta)
|
||||
if controllerRef != nil {
|
||||
if controllerRef.UID == m.controllerObject.UID {
|
||||
// already controlled
|
||||
if m.controllerSelector.Matches(labels.Set(pod.Labels)) {
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matchesAndControlled = append(matchesAndControlled, pod)
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} else {
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controlledDoesNotMatch = append(controlledDoesNotMatch, pod)
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}
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} else {
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// ignoring the pod controlled by other controller
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glog.V(4).Infof("Ignoring pod %v/%v, it's owned by [%s/%s, name: %s, uid: %s]",
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pod.Namespace, pod.Name, controllerRef.APIVersion, controllerRef.Kind, controllerRef.Name, controllerRef.UID)
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continue
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}
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||||
} else {
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||||
if !m.controllerSelector.Matches(labels.Set(pod.Labels)) {
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||||
continue
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||||
}
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||||
matchesNeedsController = append(matchesNeedsController, pod)
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||||
}
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||||
}
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||||
return matchesAndControlled, matchesNeedsController, controlledDoesNotMatch
|
||||
}
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||||
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// getControllerOf returns the controllerRef if controllee has a controller,
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||||
// otherwise returns nil.
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||||
func getControllerOf(controllee api.ObjectMeta) *api.OwnerReference {
|
||||
for _, owner := range controllee.OwnerReferences {
|
||||
// controlled by other controller
|
||||
if owner.Controller != nil && *owner.Controller == true {
|
||||
return &owner
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
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||||
|
||||
// AdoptPod sends a patch to take control of the pod. It returns the error if
|
||||
// the patching fails.
|
||||
func (m *PodControllerRefManager) AdoptPod(pod *api.Pod) error {
|
||||
// we should not adopt any pods if the controller is about to be deleted
|
||||
if m.controllerObject.DeletionTimestamp != nil {
|
||||
return fmt.Errorf("cancel the adopt attempt for pod %s because the controlller is being deleted",
|
||||
strings.Join([]string{pod.Namespace, pod.Name, string(pod.UID)}, "_"))
|
||||
}
|
||||
addControllerPatch := fmt.Sprintf(
|
||||
`{"metadata":{"ownerReferences":[{"apiVersion":"%s","kind":"%s","name":"%s","uid":"%s","controller":true}],"uid":"%s"}}`,
|
||||
m.controllerKind.GroupVersion(), m.controllerKind.Kind,
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||||
m.controllerObject.Name, m.controllerObject.UID, pod.UID)
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||||
return m.podControl.PatchPod(pod.Namespace, pod.Name, []byte(addControllerPatch))
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||||
}
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||||
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||||
// ReleasePod sends a patch to free the pod from the control of the controller.
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||||
// It returns the error if the patching fails. 404 and 422 errors are ignored.
|
||||
func (m *PodControllerRefManager) ReleasePod(pod *api.Pod) error {
|
||||
glog.V(2).Infof("patching pod %s_%s to remove its controllerRef to %s/%s:%s",
|
||||
pod.Namespace, pod.Name, m.controllerKind.GroupVersion(), m.controllerKind.Kind, m.controllerObject.Name)
|
||||
deleteOwnerRefPatch := fmt.Sprintf(`{"metadata":{"ownerReferences":[{"$patch":"delete","uid":"%s"}],"uid":"%s"}}`, m.controllerObject.UID, pod.UID)
|
||||
err := m.podControl.PatchPod(pod.Namespace, pod.Name, []byte(deleteOwnerRefPatch))
|
||||
if err != nil {
|
||||
if errors.IsNotFound(err) {
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||||
// If the pod no longer exists, ignore it.
|
||||
return nil
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||||
}
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||||
if errors.IsInvalid(err) {
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||||
// Invalid error will be returned in two cases: 1. the pod
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||||
// has no owner reference, 2. the uid of the pod doesn't
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// match, which means the pod is deleted and then recreated.
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||||
// In both cases, the error can be ignored.
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||||
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||||
// TODO: If the pod has owner references, but none of them
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||||
// has the owner.UID, server will silently ignore the patch.
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||||
// Investigate why.
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||||
return nil
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
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799
vendor/k8s.io/kubernetes/pkg/controller/controller_utils.go
generated
vendored
799
vendor/k8s.io/kubernetes/pkg/controller/controller_utils.go
generated
vendored
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|
@ -1,799 +0,0 @@
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/*
|
||||
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 controller
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/golang/glog"
|
||||
"k8s.io/kubernetes/pkg/api"
|
||||
"k8s.io/kubernetes/pkg/api/meta"
|
||||
"k8s.io/kubernetes/pkg/api/unversioned"
|
||||
"k8s.io/kubernetes/pkg/api/validation"
|
||||
"k8s.io/kubernetes/pkg/apis/extensions"
|
||||
"k8s.io/kubernetes/pkg/client/cache"
|
||||
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
|
||||
"k8s.io/kubernetes/pkg/client/record"
|
||||
"k8s.io/kubernetes/pkg/labels"
|
||||
"k8s.io/kubernetes/pkg/runtime"
|
||||
"k8s.io/kubernetes/pkg/util/clock"
|
||||
"k8s.io/kubernetes/pkg/util/integer"
|
||||
"k8s.io/kubernetes/pkg/util/sets"
|
||||
)
|
||||
|
||||
const (
|
||||
// If a watch drops a delete event for a pod, it'll take this long
|
||||
// before a dormant controller waiting for those packets is woken up anyway. It is
|
||||
// specifically targeted at the case where some problem prevents an update
|
||||
// of expectations, without it the controller could stay asleep forever. This should
|
||||
// be set based on the expected latency of watch events.
|
||||
//
|
||||
// Currently a controller can service (create *and* observe the watch events for said
|
||||
// creation) about 10 pods a second, so it takes about 1 min to service
|
||||
// 500 pods. Just creation is limited to 20qps, and watching happens with ~10-30s
|
||||
// latency/pod at the scale of 3000 pods over 100 nodes.
|
||||
ExpectationsTimeout = 5 * time.Minute
|
||||
)
|
||||
|
||||
var (
|
||||
KeyFunc = cache.DeletionHandlingMetaNamespaceKeyFunc
|
||||
)
|
||||
|
||||
type ResyncPeriodFunc func() time.Duration
|
||||
|
||||
// Returns 0 for resyncPeriod in case resyncing is not needed.
|
||||
func NoResyncPeriodFunc() time.Duration {
|
||||
return 0
|
||||
}
|
||||
|
||||
// StaticResyncPeriodFunc returns the resync period specified
|
||||
func StaticResyncPeriodFunc(resyncPeriod time.Duration) ResyncPeriodFunc {
|
||||
return func() time.Duration {
|
||||
return resyncPeriod
|
||||
}
|
||||
}
|
||||
|
||||
// Expectations are a way for controllers to tell the controller manager what they expect. eg:
|
||||
// ControllerExpectations: {
|
||||
// controller1: expects 2 adds in 2 minutes
|
||||
// controller2: expects 2 dels in 2 minutes
|
||||
// controller3: expects -1 adds in 2 minutes => controller3's expectations have already been met
|
||||
// }
|
||||
//
|
||||
// Implementation:
|
||||
// ControlleeExpectation = pair of atomic counters to track controllee's creation/deletion
|
||||
// ControllerExpectationsStore = TTLStore + a ControlleeExpectation per controller
|
||||
//
|
||||
// * Once set expectations can only be lowered
|
||||
// * A controller isn't synced till its expectations are either fulfilled, or expire
|
||||
// * Controllers that don't set expectations will get woken up for every matching controllee
|
||||
|
||||
// ExpKeyFunc to parse out the key from a ControlleeExpectation
|
||||
var ExpKeyFunc = func(obj interface{}) (string, error) {
|
||||
if e, ok := obj.(*ControlleeExpectations); ok {
|
||||
return e.key, nil
|
||||
}
|
||||
return "", fmt.Errorf("Could not find key for obj %#v", obj)
|
||||
}
|
||||
|
||||
// ControllerExpectationsInterface is an interface that allows users to set and wait on expectations.
|
||||
// Only abstracted out for testing.
|
||||
// Warning: if using KeyFunc it is not safe to use a single ControllerExpectationsInterface with different
|
||||
// types of controllers, because the keys might conflict across types.
|
||||
type ControllerExpectationsInterface interface {
|
||||
GetExpectations(controllerKey string) (*ControlleeExpectations, bool, error)
|
||||
SatisfiedExpectations(controllerKey string) bool
|
||||
DeleteExpectations(controllerKey string)
|
||||
SetExpectations(controllerKey string, add, del int) error
|
||||
ExpectCreations(controllerKey string, adds int) error
|
||||
ExpectDeletions(controllerKey string, dels int) error
|
||||
CreationObserved(controllerKey string)
|
||||
DeletionObserved(controllerKey string)
|
||||
RaiseExpectations(controllerKey string, add, del int)
|
||||
LowerExpectations(controllerKey string, add, del int)
|
||||
}
|
||||
|
||||
// ControllerExpectations is a cache mapping controllers to what they expect to see before being woken up for a sync.
|
||||
type ControllerExpectations struct {
|
||||
cache.Store
|
||||
}
|
||||
|
||||
// GetExpectations returns the ControlleeExpectations of the given controller.
|
||||
func (r *ControllerExpectations) GetExpectations(controllerKey string) (*ControlleeExpectations, bool, error) {
|
||||
if exp, exists, err := r.GetByKey(controllerKey); err == nil && exists {
|
||||
return exp.(*ControlleeExpectations), true, nil
|
||||
} else {
|
||||
return nil, false, err
|
||||
}
|
||||
}
|
||||
|
||||
// DeleteExpectations deletes the expectations of the given controller from the TTLStore.
|
||||
func (r *ControllerExpectations) DeleteExpectations(controllerKey string) {
|
||||
if exp, exists, err := r.GetByKey(controllerKey); err == nil && exists {
|
||||
if err := r.Delete(exp); err != nil {
|
||||
glog.V(2).Infof("Error deleting expectations for controller %v: %v", controllerKey, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// SatisfiedExpectations returns true if the required adds/dels for the given controller have been observed.
|
||||
// Add/del counts are established by the controller at sync time, and updated as controllees are observed by the controller
|
||||
// manager.
|
||||
func (r *ControllerExpectations) SatisfiedExpectations(controllerKey string) bool {
|
||||
if exp, exists, err := r.GetExpectations(controllerKey); exists {
|
||||
if exp.Fulfilled() {
|
||||
return true
|
||||
} else if exp.isExpired() {
|
||||
glog.V(4).Infof("Controller expectations expired %#v", exp)
|
||||
return true
|
||||
} else {
|
||||
glog.V(4).Infof("Controller still waiting on expectations %#v", exp)
|
||||
return false
|
||||
}
|
||||
} else if err != nil {
|
||||
glog.V(2).Infof("Error encountered while checking expectations %#v, forcing sync", err)
|
||||
} else {
|
||||
// When a new controller is created, it doesn't have expectations.
|
||||
// When it doesn't see expected watch events for > TTL, the expectations expire.
|
||||
// - In this case it wakes up, creates/deletes controllees, and sets expectations again.
|
||||
// When it has satisfied expectations and no controllees need to be created/destroyed > TTL, the expectations expire.
|
||||
// - In this case it continues without setting expectations till it needs to create/delete controllees.
|
||||
glog.V(4).Infof("Controller %v either never recorded expectations, or the ttl expired.", controllerKey)
|
||||
}
|
||||
// Trigger a sync if we either encountered and error (which shouldn't happen since we're
|
||||
// getting from local store) or this controller hasn't established expectations.
|
||||
return true
|
||||
}
|
||||
|
||||
// TODO: Extend ExpirationCache to support explicit expiration.
|
||||
// TODO: Make this possible to disable in tests.
|
||||
// TODO: Support injection of clock.
|
||||
func (exp *ControlleeExpectations) isExpired() bool {
|
||||
return clock.RealClock{}.Since(exp.timestamp) > ExpectationsTimeout
|
||||
}
|
||||
|
||||
// SetExpectations registers new expectations for the given controller. Forgets existing expectations.
|
||||
func (r *ControllerExpectations) SetExpectations(controllerKey string, add, del int) error {
|
||||
exp := &ControlleeExpectations{add: int64(add), del: int64(del), key: controllerKey, timestamp: clock.RealClock{}.Now()}
|
||||
glog.V(4).Infof("Setting expectations %#v", exp)
|
||||
return r.Add(exp)
|
||||
}
|
||||
|
||||
func (r *ControllerExpectations) ExpectCreations(controllerKey string, adds int) error {
|
||||
return r.SetExpectations(controllerKey, adds, 0)
|
||||
}
|
||||
|
||||
func (r *ControllerExpectations) ExpectDeletions(controllerKey string, dels int) error {
|
||||
return r.SetExpectations(controllerKey, 0, dels)
|
||||
}
|
||||
|
||||
// Decrements the expectation counts of the given controller.
|
||||
func (r *ControllerExpectations) LowerExpectations(controllerKey string, add, del int) {
|
||||
if exp, exists, err := r.GetExpectations(controllerKey); err == nil && exists {
|
||||
exp.Add(int64(-add), int64(-del))
|
||||
// The expectations might've been modified since the update on the previous line.
|
||||
glog.V(4).Infof("Lowered expectations %#v", exp)
|
||||
}
|
||||
}
|
||||
|
||||
// Increments the expectation counts of the given controller.
|
||||
func (r *ControllerExpectations) RaiseExpectations(controllerKey string, add, del int) {
|
||||
if exp, exists, err := r.GetExpectations(controllerKey); err == nil && exists {
|
||||
exp.Add(int64(add), int64(del))
|
||||
// The expectations might've been modified since the update on the previous line.
|
||||
glog.V(4).Infof("Raised expectations %#v", exp)
|
||||
}
|
||||
}
|
||||
|
||||
// CreationObserved atomically decrements the `add` expectation count of the given controller.
|
||||
func (r *ControllerExpectations) CreationObserved(controllerKey string) {
|
||||
r.LowerExpectations(controllerKey, 1, 0)
|
||||
}
|
||||
|
||||
// DeletionObserved atomically decrements the `del` expectation count of the given controller.
|
||||
func (r *ControllerExpectations) DeletionObserved(controllerKey string) {
|
||||
r.LowerExpectations(controllerKey, 0, 1)
|
||||
}
|
||||
|
||||
// Expectations are either fulfilled, or expire naturally.
|
||||
type Expectations interface {
|
||||
Fulfilled() bool
|
||||
}
|
||||
|
||||
// ControlleeExpectations track controllee creates/deletes.
|
||||
type ControlleeExpectations struct {
|
||||
// Important: Since these two int64 fields are using sync/atomic, they have to be at the top of the struct due to a bug on 32-bit platforms
|
||||
// See: https://golang.org/pkg/sync/atomic/ for more information
|
||||
add int64
|
||||
del int64
|
||||
key string
|
||||
timestamp time.Time
|
||||
}
|
||||
|
||||
// Add increments the add and del counters.
|
||||
func (e *ControlleeExpectations) Add(add, del int64) {
|
||||
atomic.AddInt64(&e.add, add)
|
||||
atomic.AddInt64(&e.del, del)
|
||||
}
|
||||
|
||||
// Fulfilled returns true if this expectation has been fulfilled.
|
||||
func (e *ControlleeExpectations) Fulfilled() bool {
|
||||
// TODO: think about why this line being atomic doesn't matter
|
||||
return atomic.LoadInt64(&e.add) <= 0 && atomic.LoadInt64(&e.del) <= 0
|
||||
}
|
||||
|
||||
// GetExpectations returns the add and del expectations of the controllee.
|
||||
func (e *ControlleeExpectations) GetExpectations() (int64, int64) {
|
||||
return atomic.LoadInt64(&e.add), atomic.LoadInt64(&e.del)
|
||||
}
|
||||
|
||||
// NewControllerExpectations returns a store for ControllerExpectations.
|
||||
func NewControllerExpectations() *ControllerExpectations {
|
||||
return &ControllerExpectations{cache.NewStore(ExpKeyFunc)}
|
||||
}
|
||||
|
||||
// UIDSetKeyFunc to parse out the key from a UIDSet.
|
||||
var UIDSetKeyFunc = func(obj interface{}) (string, error) {
|
||||
if u, ok := obj.(*UIDSet); ok {
|
||||
return u.key, nil
|
||||
}
|
||||
return "", fmt.Errorf("Could not find key for obj %#v", obj)
|
||||
}
|
||||
|
||||
// UIDSet holds a key and a set of UIDs. Used by the
|
||||
// UIDTrackingControllerExpectations to remember which UID it has seen/still
|
||||
// waiting for.
|
||||
type UIDSet struct {
|
||||
sets.String
|
||||
key string
|
||||
}
|
||||
|
||||
// UIDTrackingControllerExpectations tracks the UID of the pods it deletes.
|
||||
// This cache is needed over plain old expectations to safely handle graceful
|
||||
// deletion. The desired behavior is to treat an update that sets the
|
||||
// DeletionTimestamp on an object as a delete. To do so consistenly, one needs
|
||||
// to remember the expected deletes so they aren't double counted.
|
||||
// TODO: Track creates as well (#22599)
|
||||
type UIDTrackingControllerExpectations struct {
|
||||
ControllerExpectationsInterface
|
||||
// TODO: There is a much nicer way to do this that involves a single store,
|
||||
// a lock per entry, and a ControlleeExpectationsInterface type.
|
||||
uidStoreLock sync.Mutex
|
||||
// Store used for the UIDs associated with any expectation tracked via the
|
||||
// ControllerExpectationsInterface.
|
||||
uidStore cache.Store
|
||||
}
|
||||
|
||||
// GetUIDs is a convenience method to avoid exposing the set of expected uids.
|
||||
// The returned set is not thread safe, all modifications must be made holding
|
||||
// the uidStoreLock.
|
||||
func (u *UIDTrackingControllerExpectations) GetUIDs(controllerKey string) sets.String {
|
||||
if uid, exists, err := u.uidStore.GetByKey(controllerKey); err == nil && exists {
|
||||
return uid.(*UIDSet).String
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ExpectDeletions records expectations for the given deleteKeys, against the given controller.
|
||||
func (u *UIDTrackingControllerExpectations) ExpectDeletions(rcKey string, deletedKeys []string) error {
|
||||
u.uidStoreLock.Lock()
|
||||
defer u.uidStoreLock.Unlock()
|
||||
|
||||
if existing := u.GetUIDs(rcKey); existing != nil && existing.Len() != 0 {
|
||||
glog.Errorf("Clobbering existing delete keys: %+v", existing)
|
||||
}
|
||||
expectedUIDs := sets.NewString()
|
||||
for _, k := range deletedKeys {
|
||||
expectedUIDs.Insert(k)
|
||||
}
|
||||
glog.V(4).Infof("Controller %v waiting on deletions for: %+v", rcKey, deletedKeys)
|
||||
if err := u.uidStore.Add(&UIDSet{expectedUIDs, rcKey}); err != nil {
|
||||
return err
|
||||
}
|
||||
return u.ControllerExpectationsInterface.ExpectDeletions(rcKey, expectedUIDs.Len())
|
||||
}
|
||||
|
||||
// DeletionObserved records the given deleteKey as a deletion, for the given rc.
|
||||
func (u *UIDTrackingControllerExpectations) DeletionObserved(rcKey, deleteKey string) {
|
||||
u.uidStoreLock.Lock()
|
||||
defer u.uidStoreLock.Unlock()
|
||||
|
||||
uids := u.GetUIDs(rcKey)
|
||||
if uids != nil && uids.Has(deleteKey) {
|
||||
glog.V(4).Infof("Controller %v received delete for pod %v", rcKey, deleteKey)
|
||||
u.ControllerExpectationsInterface.DeletionObserved(rcKey)
|
||||
uids.Delete(deleteKey)
|
||||
}
|
||||
}
|
||||
|
||||
// DeleteExpectations deletes the UID set and invokes DeleteExpectations on the
|
||||
// underlying ControllerExpectationsInterface.
|
||||
func (u *UIDTrackingControllerExpectations) DeleteExpectations(rcKey string) {
|
||||
u.uidStoreLock.Lock()
|
||||
defer u.uidStoreLock.Unlock()
|
||||
|
||||
u.ControllerExpectationsInterface.DeleteExpectations(rcKey)
|
||||
if uidExp, exists, err := u.uidStore.GetByKey(rcKey); err == nil && exists {
|
||||
if err := u.uidStore.Delete(uidExp); err != nil {
|
||||
glog.V(2).Infof("Error deleting uid expectations for controller %v: %v", rcKey, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// NewUIDTrackingControllerExpectations returns a wrapper around
|
||||
// ControllerExpectations that is aware of deleteKeys.
|
||||
func NewUIDTrackingControllerExpectations(ce ControllerExpectationsInterface) *UIDTrackingControllerExpectations {
|
||||
return &UIDTrackingControllerExpectations{ControllerExpectationsInterface: ce, uidStore: cache.NewStore(UIDSetKeyFunc)}
|
||||
}
|
||||
|
||||
// Reasons for pod events
|
||||
const (
|
||||
// FailedCreatePodReason is added in an event and in a replica set condition
|
||||
// when a pod for a replica set is failed to be created.
|
||||
FailedCreatePodReason = "FailedCreate"
|
||||
// SuccessfulCreatePodReason is added in an event when a pod for a replica set
|
||||
// is successfully created.
|
||||
SuccessfulCreatePodReason = "SuccessfulCreate"
|
||||
// FailedDeletePodReason is added in an event and in a replica set condition
|
||||
// when a pod for a replica set is failed to be deleted.
|
||||
FailedDeletePodReason = "FailedDelete"
|
||||
// SuccessfulDeletePodReason is added in an event when a pod for a replica set
|
||||
// is successfully deleted.
|
||||
SuccessfulDeletePodReason = "SuccessfulDelete"
|
||||
)
|
||||
|
||||
// PodControlInterface is an interface that knows how to add or delete pods
|
||||
// created as an interface to allow testing.
|
||||
type PodControlInterface interface {
|
||||
// CreatePods creates new pods according to the spec.
|
||||
CreatePods(namespace string, template *api.PodTemplateSpec, object runtime.Object) error
|
||||
// CreatePodsOnNode creates a new pod according to the spec on the specified node.
|
||||
CreatePodsOnNode(nodeName, namespace string, template *api.PodTemplateSpec, object runtime.Object) error
|
||||
// CreatePodsWithControllerRef creates new pods according to the spec, and sets object as the pod's controller.
|
||||
CreatePodsWithControllerRef(namespace string, template *api.PodTemplateSpec, object runtime.Object, controllerRef *api.OwnerReference) error
|
||||
// DeletePod deletes the pod identified by podID.
|
||||
DeletePod(namespace string, podID string, object runtime.Object) error
|
||||
// PatchPod patches the pod.
|
||||
PatchPod(namespace, name string, data []byte) error
|
||||
}
|
||||
|
||||
// RealPodControl is the default implementation of PodControlInterface.
|
||||
type RealPodControl struct {
|
||||
KubeClient clientset.Interface
|
||||
Recorder record.EventRecorder
|
||||
}
|
||||
|
||||
var _ PodControlInterface = &RealPodControl{}
|
||||
|
||||
func getPodsLabelSet(template *api.PodTemplateSpec) labels.Set {
|
||||
desiredLabels := make(labels.Set)
|
||||
for k, v := range template.Labels {
|
||||
desiredLabels[k] = v
|
||||
}
|
||||
return desiredLabels
|
||||
}
|
||||
|
||||
func getPodsFinalizers(template *api.PodTemplateSpec) []string {
|
||||
desiredFinalizers := make([]string, len(template.Finalizers))
|
||||
copy(desiredFinalizers, template.Finalizers)
|
||||
return desiredFinalizers
|
||||
}
|
||||
|
||||
func getPodsAnnotationSet(template *api.PodTemplateSpec, object runtime.Object) (labels.Set, error) {
|
||||
desiredAnnotations := make(labels.Set)
|
||||
for k, v := range template.Annotations {
|
||||
desiredAnnotations[k] = v
|
||||
}
|
||||
createdByRef, err := api.GetReference(object)
|
||||
if err != nil {
|
||||
return desiredAnnotations, fmt.Errorf("unable to get controller reference: %v", err)
|
||||
}
|
||||
|
||||
// TODO: this code was not safe previously - as soon as new code came along that switched to v2, old clients
|
||||
// would be broken upon reading it. This is explicitly hardcoded to v1 to guarantee predictable deployment.
|
||||
// We need to consistently handle this case of annotation versioning.
|
||||
codec := api.Codecs.LegacyCodec(unversioned.GroupVersion{Group: api.GroupName, Version: "v1"})
|
||||
|
||||
createdByRefJson, err := runtime.Encode(codec, &api.SerializedReference{
|
||||
Reference: *createdByRef,
|
||||
})
|
||||
if err != nil {
|
||||
return desiredAnnotations, fmt.Errorf("unable to serialize controller reference: %v", err)
|
||||
}
|
||||
desiredAnnotations[api.CreatedByAnnotation] = string(createdByRefJson)
|
||||
return desiredAnnotations, nil
|
||||
}
|
||||
|
||||
func getPodsPrefix(controllerName string) string {
|
||||
// use the dash (if the name isn't too long) to make the pod name a bit prettier
|
||||
prefix := fmt.Sprintf("%s-", controllerName)
|
||||
if len(validation.ValidatePodName(prefix, true)) != 0 {
|
||||
prefix = controllerName
|
||||
}
|
||||
return prefix
|
||||
}
|
||||
|
||||
func (r RealPodControl) CreatePods(namespace string, template *api.PodTemplateSpec, object runtime.Object) error {
|
||||
return r.createPods("", namespace, template, object, nil)
|
||||
}
|
||||
|
||||
func (r RealPodControl) CreatePodsWithControllerRef(namespace string, template *api.PodTemplateSpec, controllerObject runtime.Object, controllerRef *api.OwnerReference) error {
|
||||
if controllerRef == nil {
|
||||
return fmt.Errorf("controllerRef is nil")
|
||||
}
|
||||
if len(controllerRef.APIVersion) == 0 {
|
||||
return fmt.Errorf("controllerRef has empty APIVersion")
|
||||
}
|
||||
if len(controllerRef.Kind) == 0 {
|
||||
return fmt.Errorf("controllerRef has empty Kind")
|
||||
}
|
||||
if controllerRef.Controller == nil || *controllerRef.Controller != true {
|
||||
return fmt.Errorf("controllerRef.Controller is not set")
|
||||
}
|
||||
return r.createPods("", namespace, template, controllerObject, controllerRef)
|
||||
}
|
||||
|
||||
func (r RealPodControl) CreatePodsOnNode(nodeName, namespace string, template *api.PodTemplateSpec, object runtime.Object) error {
|
||||
return r.createPods(nodeName, namespace, template, object, nil)
|
||||
}
|
||||
|
||||
func (r RealPodControl) PatchPod(namespace, name string, data []byte) error {
|
||||
_, err := r.KubeClient.Core().Pods(namespace).Patch(name, api.StrategicMergePatchType, data)
|
||||
return err
|
||||
}
|
||||
|
||||
func GetPodFromTemplate(template *api.PodTemplateSpec, parentObject runtime.Object, controllerRef *api.OwnerReference) (*api.Pod, error) {
|
||||
desiredLabels := getPodsLabelSet(template)
|
||||
desiredFinalizers := getPodsFinalizers(template)
|
||||
desiredAnnotations, err := getPodsAnnotationSet(template, parentObject)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
accessor, err := meta.Accessor(parentObject)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("parentObject does not have ObjectMeta, %v", err)
|
||||
}
|
||||
prefix := getPodsPrefix(accessor.GetName())
|
||||
|
||||
pod := &api.Pod{
|
||||
ObjectMeta: api.ObjectMeta{
|
||||
Labels: desiredLabels,
|
||||
Annotations: desiredAnnotations,
|
||||
GenerateName: prefix,
|
||||
Finalizers: desiredFinalizers,
|
||||
},
|
||||
}
|
||||
if controllerRef != nil {
|
||||
pod.OwnerReferences = append(pod.OwnerReferences, *controllerRef)
|
||||
}
|
||||
if err := api.Scheme.Convert(&template.Spec, &pod.Spec, nil); err != nil {
|
||||
return nil, fmt.Errorf("unable to convert pod template: %v", err)
|
||||
}
|
||||
return pod, nil
|
||||
}
|
||||
|
||||
func (r RealPodControl) createPods(nodeName, namespace string, template *api.PodTemplateSpec, object runtime.Object, controllerRef *api.OwnerReference) error {
|
||||
pod, err := GetPodFromTemplate(template, object, controllerRef)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if len(nodeName) != 0 {
|
||||
pod.Spec.NodeName = nodeName
|
||||
}
|
||||
if labels.Set(pod.Labels).AsSelectorPreValidated().Empty() {
|
||||
return fmt.Errorf("unable to create pods, no labels")
|
||||
}
|
||||
if newPod, err := r.KubeClient.Core().Pods(namespace).Create(pod); err != nil {
|
||||
r.Recorder.Eventf(object, api.EventTypeWarning, FailedCreatePodReason, "Error creating: %v", err)
|
||||
return fmt.Errorf("unable to create pods: %v", err)
|
||||
} else {
|
||||
accessor, err := meta.Accessor(object)
|
||||
if err != nil {
|
||||
glog.Errorf("parentObject does not have ObjectMeta, %v", err)
|
||||
return nil
|
||||
}
|
||||
glog.V(4).Infof("Controller %v created pod %v", accessor.GetName(), newPod.Name)
|
||||
r.Recorder.Eventf(object, api.EventTypeNormal, SuccessfulCreatePodReason, "Created pod: %v", newPod.Name)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r RealPodControl) DeletePod(namespace string, podID string, object runtime.Object) error {
|
||||
accessor, err := meta.Accessor(object)
|
||||
if err != nil {
|
||||
return fmt.Errorf("object does not have ObjectMeta, %v", err)
|
||||
}
|
||||
glog.V(2).Infof("Controller %v deleting pod %v/%v", accessor.GetName(), namespace, podID)
|
||||
if err := r.KubeClient.Core().Pods(namespace).Delete(podID, nil); err != nil {
|
||||
r.Recorder.Eventf(object, api.EventTypeWarning, FailedDeletePodReason, "Error deleting: %v", err)
|
||||
return fmt.Errorf("unable to delete pods: %v", err)
|
||||
} else {
|
||||
r.Recorder.Eventf(object, api.EventTypeNormal, SuccessfulDeletePodReason, "Deleted pod: %v", podID)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type FakePodControl struct {
|
||||
sync.Mutex
|
||||
Templates []api.PodTemplateSpec
|
||||
ControllerRefs []api.OwnerReference
|
||||
DeletePodName []string
|
||||
Patches [][]byte
|
||||
Err error
|
||||
}
|
||||
|
||||
var _ PodControlInterface = &FakePodControl{}
|
||||
|
||||
func (f *FakePodControl) PatchPod(namespace, name string, data []byte) error {
|
||||
f.Lock()
|
||||
defer f.Unlock()
|
||||
f.Patches = append(f.Patches, data)
|
||||
if f.Err != nil {
|
||||
return f.Err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *FakePodControl) CreatePods(namespace string, spec *api.PodTemplateSpec, object runtime.Object) error {
|
||||
f.Lock()
|
||||
defer f.Unlock()
|
||||
f.Templates = append(f.Templates, *spec)
|
||||
if f.Err != nil {
|
||||
return f.Err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *FakePodControl) CreatePodsWithControllerRef(namespace string, spec *api.PodTemplateSpec, object runtime.Object, controllerRef *api.OwnerReference) error {
|
||||
f.Lock()
|
||||
defer f.Unlock()
|
||||
f.Templates = append(f.Templates, *spec)
|
||||
f.ControllerRefs = append(f.ControllerRefs, *controllerRef)
|
||||
if f.Err != nil {
|
||||
return f.Err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *FakePodControl) CreatePodsOnNode(nodeName, namespace string, template *api.PodTemplateSpec, object runtime.Object) error {
|
||||
f.Lock()
|
||||
defer f.Unlock()
|
||||
f.Templates = append(f.Templates, *template)
|
||||
if f.Err != nil {
|
||||
return f.Err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *FakePodControl) DeletePod(namespace string, podID string, object runtime.Object) error {
|
||||
f.Lock()
|
||||
defer f.Unlock()
|
||||
f.DeletePodName = append(f.DeletePodName, podID)
|
||||
if f.Err != nil {
|
||||
return f.Err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *FakePodControl) Clear() {
|
||||
f.Lock()
|
||||
defer f.Unlock()
|
||||
f.DeletePodName = []string{}
|
||||
f.Templates = []api.PodTemplateSpec{}
|
||||
f.ControllerRefs = []api.OwnerReference{}
|
||||
f.Patches = [][]byte{}
|
||||
}
|
||||
|
||||
// ByLogging allows custom sorting of pods so the best one can be picked for getting its logs.
|
||||
type ByLogging []*api.Pod
|
||||
|
||||
func (s ByLogging) Len() int { return len(s) }
|
||||
func (s ByLogging) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
|
||||
|
||||
func (s ByLogging) Less(i, j int) bool {
|
||||
// 1. assigned < unassigned
|
||||
if s[i].Spec.NodeName != s[j].Spec.NodeName && (len(s[i].Spec.NodeName) == 0 || len(s[j].Spec.NodeName) == 0) {
|
||||
return len(s[i].Spec.NodeName) > 0
|
||||
}
|
||||
// 2. PodRunning < PodUnknown < PodPending
|
||||
m := map[api.PodPhase]int{api.PodRunning: 0, api.PodUnknown: 1, api.PodPending: 2}
|
||||
if m[s[i].Status.Phase] != m[s[j].Status.Phase] {
|
||||
return m[s[i].Status.Phase] < m[s[j].Status.Phase]
|
||||
}
|
||||
// 3. ready < not ready
|
||||
if api.IsPodReady(s[i]) != api.IsPodReady(s[j]) {
|
||||
return api.IsPodReady(s[i])
|
||||
}
|
||||
// TODO: take availability into account when we push minReadySeconds information from deployment into pods,
|
||||
// see https://github.com/kubernetes/kubernetes/issues/22065
|
||||
// 4. Been ready for more time < less time < empty time
|
||||
if api.IsPodReady(s[i]) && api.IsPodReady(s[j]) && !podReadyTime(s[i]).Equal(podReadyTime(s[j])) {
|
||||
return afterOrZero(podReadyTime(s[j]), podReadyTime(s[i]))
|
||||
}
|
||||
// 5. Pods with containers with higher restart counts < lower restart counts
|
||||
if maxContainerRestarts(s[i]) != maxContainerRestarts(s[j]) {
|
||||
return maxContainerRestarts(s[i]) > maxContainerRestarts(s[j])
|
||||
}
|
||||
// 6. older pods < newer pods < empty timestamp pods
|
||||
if !s[i].CreationTimestamp.Equal(s[j].CreationTimestamp) {
|
||||
return afterOrZero(s[j].CreationTimestamp, s[i].CreationTimestamp)
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// ActivePods type allows custom sorting of pods so a controller can pick the best ones to delete.
|
||||
type ActivePods []*api.Pod
|
||||
|
||||
func (s ActivePods) Len() int { return len(s) }
|
||||
func (s ActivePods) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
|
||||
|
||||
func (s ActivePods) Less(i, j int) bool {
|
||||
// 1. Unassigned < assigned
|
||||
// If only one of the pods is unassigned, the unassigned one is smaller
|
||||
if s[i].Spec.NodeName != s[j].Spec.NodeName && (len(s[i].Spec.NodeName) == 0 || len(s[j].Spec.NodeName) == 0) {
|
||||
return len(s[i].Spec.NodeName) == 0
|
||||
}
|
||||
// 2. PodPending < PodUnknown < PodRunning
|
||||
m := map[api.PodPhase]int{api.PodPending: 0, api.PodUnknown: 1, api.PodRunning: 2}
|
||||
if m[s[i].Status.Phase] != m[s[j].Status.Phase] {
|
||||
return m[s[i].Status.Phase] < m[s[j].Status.Phase]
|
||||
}
|
||||
// 3. Not ready < ready
|
||||
// If only one of the pods is not ready, the not ready one is smaller
|
||||
if api.IsPodReady(s[i]) != api.IsPodReady(s[j]) {
|
||||
return !api.IsPodReady(s[i])
|
||||
}
|
||||
// TODO: take availability into account when we push minReadySeconds information from deployment into pods,
|
||||
// see https://github.com/kubernetes/kubernetes/issues/22065
|
||||
// 4. Been ready for empty time < less time < more time
|
||||
// If both pods are ready, the latest ready one is smaller
|
||||
if api.IsPodReady(s[i]) && api.IsPodReady(s[j]) && !podReadyTime(s[i]).Equal(podReadyTime(s[j])) {
|
||||
return afterOrZero(podReadyTime(s[i]), podReadyTime(s[j]))
|
||||
}
|
||||
// 5. Pods with containers with higher restart counts < lower restart counts
|
||||
if maxContainerRestarts(s[i]) != maxContainerRestarts(s[j]) {
|
||||
return maxContainerRestarts(s[i]) > maxContainerRestarts(s[j])
|
||||
}
|
||||
// 6. Empty creation time pods < newer pods < older pods
|
||||
if !s[i].CreationTimestamp.Equal(s[j].CreationTimestamp) {
|
||||
return afterOrZero(s[i].CreationTimestamp, s[j].CreationTimestamp)
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// afterOrZero checks if time t1 is after time t2; if one of them
|
||||
// is zero, the zero time is seen as after non-zero time.
|
||||
func afterOrZero(t1, t2 unversioned.Time) bool {
|
||||
if t1.Time.IsZero() || t2.Time.IsZero() {
|
||||
return t1.Time.IsZero()
|
||||
}
|
||||
return t1.After(t2.Time)
|
||||
}
|
||||
|
||||
func podReadyTime(pod *api.Pod) unversioned.Time {
|
||||
if api.IsPodReady(pod) {
|
||||
for _, c := range pod.Status.Conditions {
|
||||
// we only care about pod ready conditions
|
||||
if c.Type == api.PodReady && c.Status == api.ConditionTrue {
|
||||
return c.LastTransitionTime
|
||||
}
|
||||
}
|
||||
}
|
||||
return unversioned.Time{}
|
||||
}
|
||||
|
||||
func maxContainerRestarts(pod *api.Pod) int {
|
||||
maxRestarts := 0
|
||||
for _, c := range pod.Status.ContainerStatuses {
|
||||
maxRestarts = integer.IntMax(maxRestarts, int(c.RestartCount))
|
||||
}
|
||||
return maxRestarts
|
||||
}
|
||||
|
||||
// FilterActivePods returns pods that have not terminated.
|
||||
func FilterActivePods(pods []*api.Pod) []*api.Pod {
|
||||
var result []*api.Pod
|
||||
for _, p := range pods {
|
||||
if IsPodActive(p) {
|
||||
result = append(result, p)
|
||||
} else {
|
||||
glog.V(4).Infof("Ignoring inactive pod %v/%v in state %v, deletion time %v",
|
||||
p.Namespace, p.Name, p.Status.Phase, p.DeletionTimestamp)
|
||||
}
|
||||
}
|
||||
return result
|
||||
}
|
||||
|
||||
func IsPodActive(p *api.Pod) bool {
|
||||
return api.PodSucceeded != p.Status.Phase &&
|
||||
api.PodFailed != p.Status.Phase &&
|
||||
p.DeletionTimestamp == nil
|
||||
}
|
||||
|
||||
// FilterActiveReplicaSets returns replica sets that have (or at least ought to have) pods.
|
||||
func FilterActiveReplicaSets(replicaSets []*extensions.ReplicaSet) []*extensions.ReplicaSet {
|
||||
active := []*extensions.ReplicaSet{}
|
||||
for i := range replicaSets {
|
||||
rs := replicaSets[i]
|
||||
|
||||
if rs != nil && rs.Spec.Replicas > 0 {
|
||||
active = append(active, replicaSets[i])
|
||||
}
|
||||
}
|
||||
return active
|
||||
}
|
||||
|
||||
// PodKey returns a key unique to the given pod within a cluster.
|
||||
// It's used so we consistently use the same key scheme in this module.
|
||||
// It does exactly what cache.MetaNamespaceKeyFunc would have done
|
||||
// except there's not possibility for error since we know the exact type.
|
||||
func PodKey(pod *api.Pod) string {
|
||||
return fmt.Sprintf("%v/%v", pod.Namespace, pod.Name)
|
||||
}
|
||||
|
||||
// ControllersByCreationTimestamp sorts a list of ReplicationControllers by creation timestamp, using their names as a tie breaker.
|
||||
type ControllersByCreationTimestamp []*api.ReplicationController
|
||||
|
||||
func (o ControllersByCreationTimestamp) Len() int { return len(o) }
|
||||
func (o ControllersByCreationTimestamp) Swap(i, j int) { o[i], o[j] = o[j], o[i] }
|
||||
func (o ControllersByCreationTimestamp) Less(i, j int) bool {
|
||||
if o[i].CreationTimestamp.Equal(o[j].CreationTimestamp) {
|
||||
return o[i].Name < o[j].Name
|
||||
}
|
||||
return o[i].CreationTimestamp.Before(o[j].CreationTimestamp)
|
||||
}
|
||||
|
||||
// ReplicaSetsByCreationTimestamp sorts a list of ReplicaSet by creation timestamp, using their names as a tie breaker.
|
||||
type ReplicaSetsByCreationTimestamp []*extensions.ReplicaSet
|
||||
|
||||
func (o ReplicaSetsByCreationTimestamp) Len() int { return len(o) }
|
||||
func (o ReplicaSetsByCreationTimestamp) Swap(i, j int) { o[i], o[j] = o[j], o[i] }
|
||||
func (o ReplicaSetsByCreationTimestamp) Less(i, j int) bool {
|
||||
if o[i].CreationTimestamp.Equal(o[j].CreationTimestamp) {
|
||||
return o[i].Name < o[j].Name
|
||||
}
|
||||
return o[i].CreationTimestamp.Before(o[j].CreationTimestamp)
|
||||
}
|
||||
|
||||
// ReplicaSetsBySizeOlder sorts a list of ReplicaSet by size in descending order, using their creation timestamp or name as a tie breaker.
|
||||
// By using the creation timestamp, this sorts from old to new replica sets.
|
||||
type ReplicaSetsBySizeOlder []*extensions.ReplicaSet
|
||||
|
||||
func (o ReplicaSetsBySizeOlder) Len() int { return len(o) }
|
||||
func (o ReplicaSetsBySizeOlder) Swap(i, j int) { o[i], o[j] = o[j], o[i] }
|
||||
func (o ReplicaSetsBySizeOlder) Less(i, j int) bool {
|
||||
if o[i].Spec.Replicas == o[j].Spec.Replicas {
|
||||
return ReplicaSetsByCreationTimestamp(o).Less(i, j)
|
||||
}
|
||||
return o[i].Spec.Replicas > o[j].Spec.Replicas
|
||||
}
|
||||
|
||||
// ReplicaSetsBySizeNewer sorts a list of ReplicaSet by size in descending order, using their creation timestamp or name as a tie breaker.
|
||||
// By using the creation timestamp, this sorts from new to old replica sets.
|
||||
type ReplicaSetsBySizeNewer []*extensions.ReplicaSet
|
||||
|
||||
func (o ReplicaSetsBySizeNewer) Len() int { return len(o) }
|
||||
func (o ReplicaSetsBySizeNewer) Swap(i, j int) { o[i], o[j] = o[j], o[i] }
|
||||
func (o ReplicaSetsBySizeNewer) Less(i, j int) bool {
|
||||
if o[i].Spec.Replicas == o[j].Spec.Replicas {
|
||||
return ReplicaSetsByCreationTimestamp(o).Less(j, i)
|
||||
}
|
||||
return o[i].Spec.Replicas > o[j].Spec.Replicas
|
||||
}
|
||||
52
vendor/k8s.io/kubernetes/pkg/controller/deployment/util/BUILD
generated
vendored
52
vendor/k8s.io/kubernetes/pkg/controller/deployment/util/BUILD
generated
vendored
|
|
@ -1,52 +0,0 @@
|
|||
package(default_visibility = ["//visibility:public"])
|
||||
|
||||
licenses(["notice"])
|
||||
|
||||
load(
|
||||
"@io_bazel_rules_go//go:def.bzl",
|
||||
"go_binary",
|
||||
"go_library",
|
||||
"go_test",
|
||||
"cgo_library",
|
||||
)
|
||||
|
||||
go_library(
|
||||
name = "go_default_library",
|
||||
srcs = ["deployment_util.go"],
|
||||
tags = ["automanaged"],
|
||||
deps = [
|
||||
"//pkg/api:go_default_library",
|
||||
"//pkg/api/annotations:go_default_library",
|
||||
"//pkg/api/meta:go_default_library",
|
||||
"//pkg/api/unversioned:go_default_library",
|
||||
"//pkg/apis/extensions:go_default_library",
|
||||
"//pkg/client/clientset_generated/internalclientset:go_default_library",
|
||||
"//pkg/controller:go_default_library",
|
||||
"//pkg/labels:go_default_library",
|
||||
"//pkg/runtime:go_default_library",
|
||||
"//pkg/util/errors:go_default_library",
|
||||
"//pkg/util/integer:go_default_library",
|
||||
"//pkg/util/intstr:go_default_library",
|
||||
"//pkg/util/labels:go_default_library",
|
||||
"//pkg/util/pod:go_default_library",
|
||||
"//pkg/util/wait:go_default_library",
|
||||
"//vendor:github.com/golang/glog",
|
||||
],
|
||||
)
|
||||
|
||||
go_test(
|
||||
name = "go_default_test",
|
||||
srcs = ["deployment_util_test.go"],
|
||||
library = "go_default_library",
|
||||
tags = ["automanaged"],
|
||||
deps = [
|
||||
"//pkg/api:go_default_library",
|
||||
"//pkg/api/unversioned:go_default_library",
|
||||
"//pkg/apis/extensions:go_default_library",
|
||||
"//pkg/client/clientset_generated/internalclientset/fake:go_default_library",
|
||||
"//pkg/client/testing/core:go_default_library",
|
||||
"//pkg/runtime:go_default_library",
|
||||
"//pkg/util/intstr:go_default_library",
|
||||
"//vendor:github.com/stretchr/testify/assert",
|
||||
],
|
||||
)
|
||||
1009
vendor/k8s.io/kubernetes/pkg/controller/deployment/util/deployment_util.go
generated
vendored
1009
vendor/k8s.io/kubernetes/pkg/controller/deployment/util/deployment_util.go
generated
vendored
File diff suppressed because it is too large
Load diff
19
vendor/k8s.io/kubernetes/pkg/controller/doc.go
generated
vendored
19
vendor/k8s.io/kubernetes/pkg/controller/doc.go
generated
vendored
|
|
@ -1,19 +0,0 @@
|
|||
/*
|
||||
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 controller contains code for controllers (like the replication
|
||||
// controller).
|
||||
package controller
|
||||
92
vendor/k8s.io/kubernetes/pkg/controller/lookup_cache.go
generated
vendored
92
vendor/k8s.io/kubernetes/pkg/controller/lookup_cache.go
generated
vendored
|
|
@ -1,92 +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 controller
|
||||
|
||||
import (
|
||||
"hash/adler32"
|
||||
"sync"
|
||||
|
||||
"github.com/golang/groupcache/lru"
|
||||
"k8s.io/kubernetes/pkg/api/meta"
|
||||
hashutil "k8s.io/kubernetes/pkg/util/hash"
|
||||
)
|
||||
|
||||
type objectWithMeta interface {
|
||||
meta.Object
|
||||
}
|
||||
|
||||
// keyFunc returns the key of an object, which is used to look up in the cache for it's matching object.
|
||||
// Since we match objects by namespace and Labels/Selector, so if two objects have the same namespace and labels,
|
||||
// they will have the same key.
|
||||
func keyFunc(obj objectWithMeta) uint64 {
|
||||
hash := adler32.New()
|
||||
hashutil.DeepHashObject(hash, &equivalenceLabelObj{
|
||||
namespace: obj.GetNamespace(),
|
||||
labels: obj.GetLabels(),
|
||||
})
|
||||
return uint64(hash.Sum32())
|
||||
}
|
||||
|
||||
type equivalenceLabelObj struct {
|
||||
namespace string
|
||||
labels map[string]string
|
||||
}
|
||||
|
||||
// MatchingCache save label and selector matching relationship
|
||||
type MatchingCache struct {
|
||||
mutex sync.RWMutex
|
||||
cache *lru.Cache
|
||||
}
|
||||
|
||||
// NewMatchingCache return a NewMatchingCache, which save label and selector matching relationship.
|
||||
func NewMatchingCache(maxCacheEntries int) *MatchingCache {
|
||||
return &MatchingCache{
|
||||
cache: lru.New(maxCacheEntries),
|
||||
}
|
||||
}
|
||||
|
||||
// Add will add matching information to the cache.
|
||||
func (c *MatchingCache) Add(labelObj objectWithMeta, selectorObj objectWithMeta) {
|
||||
key := keyFunc(labelObj)
|
||||
c.mutex.Lock()
|
||||
defer c.mutex.Unlock()
|
||||
c.cache.Add(key, selectorObj)
|
||||
}
|
||||
|
||||
// GetMatchingObject lookup the matching object for a given object.
|
||||
// Note: the cache information may be invalid since the controller may be deleted or updated,
|
||||
// we need check in the external request to ensure the cache data is not dirty.
|
||||
func (c *MatchingCache) GetMatchingObject(labelObj objectWithMeta) (controller interface{}, exists bool) {
|
||||
key := keyFunc(labelObj)
|
||||
// NOTE: we use Lock() instead of RLock() here because lru's Get() method also modifies state(
|
||||
// it need update the least recently usage information). So we can not call it concurrently.
|
||||
c.mutex.Lock()
|
||||
defer c.mutex.Unlock()
|
||||
return c.cache.Get(key)
|
||||
}
|
||||
|
||||
// Update update the cached matching information.
|
||||
func (c *MatchingCache) Update(labelObj objectWithMeta, selectorObj objectWithMeta) {
|
||||
c.Add(labelObj, selectorObj)
|
||||
}
|
||||
|
||||
// InvalidateAll invalidate the whole cache.
|
||||
func (c *MatchingCache) InvalidateAll() {
|
||||
c.mutex.Lock()
|
||||
defer c.mutex.Unlock()
|
||||
c.cache = lru.New(c.cache.MaxEntries)
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue