From f9129b02a5646d4d2e58fd0a3a36442a43799137 Mon Sep 17 00:00:00 2001
From: Vishnu kannan <vishnuk@google.com>
Date: Wed, 2 Mar 2016 14:18:33 -0800
Subject: [PATCH 1/2] Start for real background tasks in container manager.

Signed-off-by: Vishnu kannan <vishnuk@google.com>
---
 pkg/kubelet/cm/container_manager_linux.go | 35 ++++++++++++-----------
 pkg/kubelet/kubelet.go                    |  3 +-
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/pkg/kubelet/cm/container_manager_linux.go b/pkg/kubelet/cm/container_manager_linux.go
index 7220d04faa4..9ef4472d5ed 100644
--- a/pkg/kubelet/cm/container_manager_linux.go
+++ b/pkg/kubelet/cm/container_manager_linux.go
@@ -324,28 +324,29 @@ func (cm *containerManagerImpl) Start() error {
 			numEnsureStateFuncs++
 		}
 	}
-	if numEnsureStateFuncs == 0 {
-		return nil
+	if numEnsureStateFuncs >= 0 {
+		go wait.Until(func() {
+			for _, cont := range cm.systemContainers {
+				if cont.ensureStateFunc != nil {
+					if err := cont.ensureStateFunc(cont.manager); err != nil {
+						glog.Warningf("[ContainerManager] Failed to ensure state of %q: %v", cont.name, err)
+					}
+				}
+			}
+		}, time.Minute, wait.NeverStop)
+
 	}
 
 	// Run ensure state functions every minute.
-	go wait.Until(func() {
-		for _, cont := range cm.systemContainers {
-			if cont.ensureStateFunc != nil {
-				if err := cont.ensureStateFunc(cont.manager); err != nil {
-					glog.Warningf("[ContainerManager] Failed to ensure state of %q: %v", cont.name, err)
+	if len(cm.periodicTasks) > 0 {
+		go wait.Until(func() {
+			for _, task := range cm.periodicTasks {
+				if task != nil {
+					task()
 				}
 			}
-		}
-	}, time.Minute, wait.NeverStop)
-
-	go wait.Until(func() {
-		for _, task := range cm.periodicTasks {
-			if task != nil {
-				task()
-			}
-		}
-	}, 5*time.Minute, wait.NeverStop)
+		}, 5*time.Minute, wait.NeverStop)
+	}
 
 	return nil
 }
diff --git a/pkg/kubelet/kubelet.go b/pkg/kubelet/kubelet.go
index 4a0d7628a99..875887542d3 100644
--- a/pkg/kubelet/kubelet.go
+++ b/pkg/kubelet/kubelet.go
@@ -18,7 +18,6 @@ package kubelet
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -923,7 +922,7 @@ func (kl *Kubelet) listPodsFromDisk() ([]types.UID, error) {
 
 func (kl *Kubelet) GetNode() (*api.Node, error) {
 	if kl.standaloneMode {
-		return nil, errors.New("no node entry for kubelet in standalone mode")
+		return kl.initialNodeStatus()
 	}
 	return kl.nodeInfo.GetNodeInfo(kl.nodeName)
 }

From e33ec7a6ba18fc44c038de2689afc54e46c85671 Mon Sep 17 00:00:00 2001
From: Vishnu kannan <vishnuk@google.com>
Date: Tue, 1 Mar 2016 14:28:22 -0800
Subject: [PATCH 2/2] Re-enable system metrics kubelet tests.

Signed-off-by: Vishnu kannan <vishnuk@google.com>
---
 test/e2e_node/kubelet_test.go | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/test/e2e_node/kubelet_test.go b/test/e2e_node/kubelet_test.go
index 26fcd57e5ff..1fd2b942669 100644
--- a/test/e2e_node/kubelet_test.go
+++ b/test/e2e_node/kubelet_test.go
@@ -198,16 +198,16 @@ var _ = Describe("Kubelet", func() {
 				Expect(summary.Node.Fs.UsedBytes).NotTo(BeNil())
 				Expect(*summary.Node.Fs.UsedBytes).NotTo(BeZero())
 
-				// TODO: Enable this test when #22198 is resolved.
-				//				By("Having resources for kubelet and runtime system containers")
-				//				sysContainers := map[string]stats.ContainerStats{}
-				//				sysContainersList := []string{}
-				//				for _, container := range summary.Node.SystemContainers {
-				//					sysContainers[container.Name] = container
-				//					sysContainersList = append(sysContainersList, container.Name)
-				//					ExpectContainerStatsNotEmpty(&container)
-				//				}
-				//				Expect(sysContainersList).To(ConsistOf("kubelet", "runtime"))
+				By("Having resources for kubelet and runtime system containers")
+				sysContainers := map[string]stats.ContainerStats{}
+				sysContainersList := []string{}
+				for _, container := range summary.Node.SystemContainers {
+					sysContainers[container.Name] = container
+					sysContainersList = append(sysContainersList, container.Name)
+					ExpectContainerStatsNotEmpty(&container)
+				}
+				Expect(sysContainersList).To(ContainElement("kubelet"))
+				Expect(sysContainersList).To(ContainElement("runtime"))
 
 				// Verify Pods Stats are present
 				podsList := []string{}