mirror of https://github.com/k3s-io/k3s
58 lines
2.1 KiB
Go
58 lines
2.1 KiB
Go
/*
|
|
Copyright 2015 Google Inc. All rights reserved.
|
|
|
|
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.
|
|
*/
|
|
|
|
// Reads the pod configuration from the Kubernetes apiserver.
|
|
package config
|
|
|
|
import (
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/cache"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
|
|
"github.com/golang/glog"
|
|
)
|
|
|
|
// NewSourceApiserver creates a config source that watches and pulls from the apiserver.
|
|
func NewSourceApiserver(client *client.Client, hostname string, updates chan<- interface{}) {
|
|
lw := &cache.ListWatch{
|
|
Client: client,
|
|
FieldSelector: labels.OneTermEqualSelector("Status.Host", hostname),
|
|
Resource: "pods",
|
|
}
|
|
newSourceApiserverFromLW(lw, updates)
|
|
}
|
|
|
|
// newSourceApiserverFromLW holds creates a config source that watches an pulls from the apiserver.
|
|
func newSourceApiserverFromLW(lw cache.ListerWatcher, updates chan<- interface{}) {
|
|
send := func(objs []interface{}) {
|
|
var bpods []api.BoundPod
|
|
for _, o := range objs {
|
|
pod := o.(*api.Pod)
|
|
bpod := api.BoundPod{}
|
|
if err := api.Scheme.Convert(pod, &bpod); err != nil {
|
|
glog.Errorf("Unable to interpret Pod from apiserver as a BoundPod: %v: %+v", err, pod)
|
|
continue
|
|
}
|
|
// Make a dummy self link so that references to this bound pod will work.
|
|
bpod.SelfLink = "/api/v1beta1/boundPods/" + bpod.Name
|
|
bpods = append(bpods, bpod)
|
|
}
|
|
updates <- kubelet.PodUpdate{bpods, kubelet.SET, kubelet.ApiserverSource}
|
|
}
|
|
cache.NewReflector(lw, &api.Pod{}, cache.NewUndeltaStore(send)).Run()
|
|
}
|