Remove some docker references

pkg/kubelet/kubelet.go

@@ -1696,7 +1696,8 @@ func getPodReadyCondition(spec *api.PodSpec, statuses []api.ContainerStatus) []a
 	return ready
 }
 
-// GetPodStatus returns information from Docker about the containers in a pod
+// GetPodStatus returns information of the containers in the pod from the
+// container runtime.
 func (kl *Kubelet) GetPodStatus(podFullName string) (api.PodStatus, error) {
 	// Check to see if we have a cached version of the status.
 	cachedPodStatus, found := kl.statusManager.GetPodStatus(podFullName)
@@ -1722,14 +1723,14 @@ func (kl *Kubelet) generatePodStatus(pod *api.Pod) (api.PodStatus, error) {
 
 	if err != nil {
 		// Error handling
-		glog.Infof("Query docker container info for pod %q failed with error (%v)", podFullName, err)
+		glog.Infof("Query container info for pod %q failed with error (%v)", podFullName, err)
 		if strings.Contains(err.Error(), "resource temporarily unavailable") {
 			// Leave upstream layer to decide what to do
 			return api.PodStatus{}, err
 		} else {
 			pendingStatus := api.PodStatus{
 				Phase:   api.PodPending,
-				Message: fmt.Sprintf("Query docker container info failed with error (%v)", err),
+				Message: fmt.Sprintf("Query container info failed with error (%v)", err),
 			}
 			return pendingStatus, nil
 		}

pkg/kubelet/pod_workers.go

@@ -84,10 +84,10 @@ func (p *podWorkers) managePodLoop(podUpdates <-chan workUpdate) {
 	for newWork := range podUpdates {
 		func() {
 			defer p.checkForUpdates(newWork.pod.UID, newWork.updateCompleteFn)
-			// We would like to have the state of Docker from at least the moment
-			// when we finished the previous processing of that pod.
+			// We would like to have the state of the containers from at least
+			// the moment when we finished the previous processing of that pod.
 			if err := p.runtimeCache.ForceUpdateIfOlder(minRuntimeCacheTime); err != nil {
-				glog.Errorf("Error updating docker cache: %v", err)
+				glog.Errorf("Error updating the container runtime cache: %v", err)
 				return
 			}
 			pods, err := p.runtimeCache.GetPods()