Kubernetes Submit Queue 1bdee5636a Merge pull request #64555 from wenlxie/upstream.master.fixrbdblockmode ...

Automatic merge from submit-queue (batch tested with PRs 65254, 64837, 64782, 64555, 64850). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

fix rbd device works at block mode not get mapped to container 

In my environment, restart docker will caused all of the container restart(our kernel is a bit old). 
Kubelet will also be restart.
After the  container up , I checked the container and find the RBD block device is not mapped to container.
When I inspect the container, its {HostConfig.Devices[]} field is empty.
I did some debug,  then find that  at code https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/kubelet_pods.go#L113
The volName is empty. 

```release-notes
Fix issues for block device not mapped to container.
```

2018-06-20 11:28:17 -07:00

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