Remove mentions of etcd in kubelet.

cmd/kubelet/app/server.go

@@ -187,7 +187,8 @@ func (s *KubeletServer) Run(_ []string) error {
 
 func (s *KubeletServer) setupRunOnce() {
 	if s.RunOnce {
-		// Don't use remote (etcd or apiserver) sources
+		// Don't use apiserver source, on the presumption that this flag is used
+		// for bootstrapping some system pods.
 		if len(s.APIServerList) > 0 {
 			glog.Fatalf("invalid option: --runonce and --api_servers are mutually exclusive")
 		}
@@ -227,7 +228,7 @@ func (s *KubeletServer) createAPIServerClient() (*client.Client, error) {
 	return c, nil
 }
 
-// SimpleRunKubelet is a simple way to start a Kubelet talking to dockerEndpoint, using an etcdClient.
+// SimpleRunKubelet is a simple way to start a Kubelet talking to dockerEndpoint, using an API Client.
 // Under the hood it calls RunKubelet (below)
 func SimpleRunKubelet(client *client.Client,
 	dockerClient dockertools.DockerInterface,

pkg/kubelet/kubelet.go

@@ -1534,7 +1534,7 @@ func (kl *Kubelet) handleUpdate(u PodUpdate) {
 }
 
 // syncLoop is the main loop for processing changes. It watches for changes from
-// four channels (file, etcd, server, and http) and creates a union of them. For
+// three channels (file, apiserver, and http) and creates a union of them. For
 // any new change seen, will run a sync against desired state and running state. If
 // no changes are seen to the configuration, will synchronize the last known desired
 // state every sync_frequency seconds. Never returns.

pkg/kubelet/kubelet_test.go

@@ -1390,7 +1390,7 @@ func TestRunInContainerNoSuchPod(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerName := "containerFoo"
 	output, err := kubelet.RunInContainer(
 		GetPodFullName(&api.BoundPod{ObjectMeta: api.ObjectMeta{Name: podName, Namespace: podNamespace}}),
@@ -1412,7 +1412,7 @@ func TestRunInContainer(t *testing.T) {
 
 	containerID := "abc1234"
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerName := "containerFoo"
 
 	fakeDocker.ContainerList = []docker.APIContainers{
@@ -1452,7 +1452,7 @@ func TestRunHandlerExec(t *testing.T) {
 
 	containerID := "abc1234"
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerName := "containerFoo"
 
 	fakeDocker.ContainerList = []docker.APIContainers{
@@ -1499,7 +1499,7 @@ func TestRunHandlerHttp(t *testing.T) {
 	kubelet.httpClient = &fakeHttp
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerName := "containerFoo"
 
 	container := api.Container{
@@ -2694,7 +2694,7 @@ func TestExecInContainerNoSuchPod(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerName := "containerFoo"
 	err := kubelet.ExecInContainer(
 		GetPodFullName(&api.BoundPod{ObjectMeta: api.ObjectMeta{Name: podName, Namespace: podNamespace}}),
@@ -2720,7 +2720,7 @@ func TestExecInContainerNoSuchContainer(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerID := "containerFoo"
 
 	fakeDocker.ContainerList = []docker.APIContainers{
@@ -2772,7 +2772,7 @@ func TestExecInContainer(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerID := "containerFoo"
 	command := []string{"ls"}
 	stdin := &bytes.Buffer{}
@@ -2831,7 +2831,7 @@ func TestPortForwardNoSuchPod(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	var port uint16 = 5000
 
 	err := kubelet.PortForward(
@@ -2854,7 +2854,7 @@ func TestPortForwardNoSuchContainer(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	var port uint16 = 5000
 
 	fakeDocker.ContainerList = []docker.APIContainers{
@@ -2888,7 +2888,7 @@ func TestPortForward(t *testing.T) {
 	kubelet.runner = &fakeCommandRunner
 
 	podName := "podFoo"
-	podNamespace := "etcd"
+	podNamespace := "nsFoo"
 	containerID := "containerFoo"
 	var port uint16 = 5000
 	stream := &fakeReadWriteCloser{}