5ee943d683
Support namespacing in cache.Store by framing the interface functions
around interface{} and providing a key function to each Store implementation.
Implementation of a fix for #2294.
58 lines
2.1 KiB
Go
58 lines
2.1 KiB
Go
/*
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Copyright 2015 Google Inc. All rights reserved.
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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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// Reads the pod configuration from the Kubernetes apiserver.
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package config
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import (
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client/cache"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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"github.com/golang/glog"
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)
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// NewSourceApiserver creates a config source that watches and pulls from the apiserver.
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func NewSourceApiserver(client *client.Client, hostname string, updates chan<- interface{}) {
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lw := &cache.ListWatch{
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Client: client,
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FieldSelector: labels.OneTermEqualSelector("Status.Host", hostname),
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Resource: "pods",
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}
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newSourceApiserverFromLW(lw, updates)
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}
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// newSourceApiserverFromLW holds creates a config source that watches an pulls from the apiserver.
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func newSourceApiserverFromLW(lw cache.ListerWatcher, updates chan<- interface{}) {
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send := func(objs []interface{}) {
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var bpods []api.BoundPod
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for _, o := range objs {
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pod := o.(*api.Pod)
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bpod := api.BoundPod{}
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if err := api.Scheme.Convert(pod, &bpod); err != nil {
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glog.Errorf("Unable to interpret Pod from apiserver as a BoundPod: %v: %+v", err, pod)
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continue
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}
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// Make a dummy self link so that references to this bound pod will work.
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bpod.SelfLink = "/api/v1beta1/boundPods/" + bpod.Name
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bpods = append(bpods, bpod)
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}
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updates <- kubelet.PodUpdate{bpods, kubelet.SET, kubelet.ApiserverSource}
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}
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cache.NewReflector(lw, &api.Pod{}, cache.NewUndeltaStore(send, cache.MetaNamespaceKeyFunc)).Run()
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}
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