mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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110 lines
3.5 KiB
Go
110 lines
3.5 KiB
Go
/*
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Copyright 2015 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 informers
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import (
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"reflect"
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"sync"
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"time"
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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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)
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// SharedInformerFactory provides interface which holds unique informers for pods, nodes, namespaces, persistent volume
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// claims and persistent volumes
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type SharedInformerFactory interface {
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// Start starts informers that can start AFTER the API server and controllers have started
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Start(stopCh <-chan struct{})
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Pods() PodInformer
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Nodes() NodeInformer
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Namespaces() NamespaceInformer
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PersistentVolumeClaims() PVCInformer
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PersistentVolumes() PVInformer
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DaemonSets() DaemonSetInformer
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Deployments() DeploymentInformer
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}
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type sharedInformerFactory struct {
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client clientset.Interface
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lock sync.Mutex
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defaultResync time.Duration
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informers map[reflect.Type]cache.SharedIndexInformer
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// startedInformers is used for tracking which informers have been started
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// this allows calling of Start method multiple times
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startedInformers map[reflect.Type]bool
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}
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// NewSharedInformerFactory constructs a new instance of sharedInformerFactory
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func NewSharedInformerFactory(client clientset.Interface, defaultResync time.Duration) SharedInformerFactory {
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return &sharedInformerFactory{
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client: client,
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defaultResync: defaultResync,
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informers: make(map[reflect.Type]cache.SharedIndexInformer),
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startedInformers: make(map[reflect.Type]bool),
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}
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}
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// Start initializes all requested informers.
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func (s *sharedInformerFactory) Start(stopCh <-chan struct{}) {
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s.lock.Lock()
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defer s.lock.Unlock()
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for informerType, informer := range s.informers {
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if !s.startedInformers[informerType] {
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go informer.Run(stopCh)
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s.startedInformers[informerType] = true
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}
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}
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}
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// Pods returns a SharedIndexInformer that lists and watches all pods
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func (f *sharedInformerFactory) Pods() PodInformer {
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return &podInformer{sharedInformerFactory: f}
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}
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// Nodes returns a SharedIndexInformer that lists and watches all nodes
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func (f *sharedInformerFactory) Nodes() NodeInformer {
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return &nodeInformer{sharedInformerFactory: f}
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}
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// Namespaces returns a SharedIndexInformer that lists and watches all namespaces
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func (f *sharedInformerFactory) Namespaces() NamespaceInformer {
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return &namespaceInformer{sharedInformerFactory: f}
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}
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// PersistentVolumeClaims returns a SharedIndexInformer that lists and watches all persistent volume claims
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func (f *sharedInformerFactory) PersistentVolumeClaims() PVCInformer {
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return &pvcInformer{sharedInformerFactory: f}
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}
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// PersistentVolumes returns a SharedIndexInformer that lists and watches all persistent volumes
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func (f *sharedInformerFactory) PersistentVolumes() PVInformer {
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return &pvInformer{sharedInformerFactory: f}
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}
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func (f *sharedInformerFactory) DaemonSets() DaemonSetInformer {
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return &daemonSetInformer{sharedInformerFactory: f}
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}
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func (f *sharedInformerFactory) Deployments() DeploymentInformer {
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return &deploymentInformer{sharedInformerFactory: f}
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}
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