File fix-cgroup-kubeadm.patch of Package kubernetes

From 883f33df6cd9e74924832716a053cf482bde1740 Mon Sep 17 00:00:00 2001
From: David Ashpole <dashpole@google.com>
Date: Thu, 20 Jun 2019 16:16:08 -0700
Subject: [PATCH] kunsupported cgroup setup causes kubelet to emit a warning
 rather than exiting

---
 cmd/kubelet/app/server.go | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/cmd/kubelet/app/server.go b/cmd/kubelet/app/server.go
index 139a8eacbb..f3367f33f5 100644
--- a/cmd/kubelet/app/server.go
+++ b/cmd/kubelet/app/server.go
@@ -625,17 +625,15 @@ func run(s *options.KubeletServer, kubeDeps *kubelet.Dependencies, stopCh <-chan
 	cgroupRoots = append(cgroupRoots, cm.NodeAllocatableRoot(s.CgroupRoot, s.CgroupDriver))
 	kubeletCgroup, err := cm.GetKubeletContainer(s.KubeletCgroups)
 	if err != nil {
-		return fmt.Errorf("failed to get the kubelet's cgroup: %v", err)
-	}
-	if kubeletCgroup != "" {
+		klog.Warningf("failed to get the kubelet's cgroup: %v.  Kubelet system container metrics may be missing.", err)
+	} else if kubeletCgroup != "" {
 		cgroupRoots = append(cgroupRoots, kubeletCgroup)
 	}
 
 	runtimeCgroup, err := cm.GetRuntimeContainer(s.ContainerRuntime, s.RuntimeCgroups)
 	if err != nil {
-		return fmt.Errorf("failed to get the container runtime's cgroup: %v", err)
-	}
-	if runtimeCgroup != "" {
+		klog.Warningf("failed to get the container runtime's cgroup: %v. Runtime system container metrics may be missing.", err)
+	} else if runtimeCgroup != "" {
 		// RuntimeCgroups is optional, so ignore if it isn't specified
 		cgroupRoots = append(cgroupRoots, runtimeCgroup)
 	}
-- 
2.21.0