Kubernetes Submit Queue 244549f02a Merge pull request #59769 from dashpole/capacity_ephemeral_storage ...

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Collect ephemeral storage capacity on initialization

**What this PR does / why we need it**:
We have had some node e2e flakes where a pod can be rejected if it requests ephemeral storage.  This is because we don't set capacity and allocatable for ephemeral storage on initialization.
This PR causes cAdvisor to do one round of stats collection during initialization, which will allow it to get the disk capacity when it first sets the node status.
It also sets the node to NotReady if capacities have not been initialized yet.

**Special notes for your reviewer**:

**Release note**:
```release-note
NONE
```
/assign @jingxu97 @Random-Liu 

/sig node
/kind bug
/priority important-soon

2018-02-16 11:17:02 -08:00

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