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2c7ef5ad4f
The code was already 99% similar between RC and RS. This is a wild idea to try to deduplicate the two controllers in a type-safe manner without adding tons of boilerplate, and without using code generation. They are still separate resources. This is a refactor that isn't intended to change any behavior.
68 lines
2.5 KiB
Go
68 lines
2.5 KiB
Go
/*
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Copyright 2014 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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// ### ATTENTION ###
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//
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// ReplicationManager is now just a wrapper around ReplicaSetController,
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// with a conversion layer that effectively treats ReplicationController
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// as if it were an older API version of ReplicaSet.
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//
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// However, RC and RS still have separate storage and separate instantiations
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// of the ReplicaSetController object.
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package replication
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import (
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"github.com/golang/glog"
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"k8s.io/api/core/v1"
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coreinformers "k8s.io/client-go/informers/core/v1"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/client-go/kubernetes/scheme"
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v1core "k8s.io/client-go/kubernetes/typed/core/v1"
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"k8s.io/client-go/tools/record"
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"k8s.io/kubernetes/pkg/controller"
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"k8s.io/kubernetes/pkg/controller/replicaset"
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)
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const (
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BurstReplicas = replicaset.BurstReplicas
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)
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// ReplicationManager is responsible for synchronizing ReplicationController objects stored
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// in the system with actual running pods.
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// It is actually just a wrapper around ReplicaSetController.
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type ReplicationManager struct {
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replicaset.ReplicaSetController
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}
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// NewReplicationManager configures a replication manager with the specified event recorder
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func NewReplicationManager(podInformer coreinformers.PodInformer, rcInformer coreinformers.ReplicationControllerInformer, kubeClient clientset.Interface, burstReplicas int) *ReplicationManager {
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eventBroadcaster := record.NewBroadcaster()
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eventBroadcaster.StartLogging(glog.Infof)
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eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: v1core.New(kubeClient.CoreV1().RESTClient()).Events("")})
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return &ReplicationManager{
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*replicaset.NewBaseController(informerAdapter{rcInformer}, podInformer, clientsetAdapter{kubeClient}, burstReplicas,
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v1.SchemeGroupVersion.WithKind("ReplicationController"),
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"replication_controller",
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"replicationmanager",
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podControlAdapter{controller.RealPodControl{
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KubeClient: kubeClient,
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Recorder: eventBroadcaster.NewRecorder(scheme.Scheme, v1.EventSource{Component: "replication-controller"}),
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}},
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),
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}
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}
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