CRI-O: fix handling of overlay2 storage

[runcom]

Verified we're now reading the diff dir in container's storage:

      "rootfs": {
       "time": "2017-10-13T08:27:45Z",
       "availableBytes": 10798333952,
       "capacityBytes": 52710469632,
       "usedBytes": 90112,
       "inodesFree": 2659325,
       "inodes": 3276800,
       "inodesUsed": 16
      },

[root@runcom 4f4cc46320d76a12e9a833a7708ad62d5d5c8359911553cb3a25e0b12d6c3f75]# pwd
/var/lib/containers/storage/overlay2/4f4cc46320d76a12e9a833a7708ad62d5d5c8359911553cb3a25e0b12d6c3f75
[root@runcom 4f4cc46320d76a12e9a833a7708ad62d5d5c8359911553cb3a25e0b12d6c3f75]# du -s -B1 ./diff/
90112   ./diff/

@derekwaynecarr @mrunalp @dashpole PTAL

related to #1770

Signed-off-by: Antonio Murdaca runcom@redhat.com

[mrunalp]

👍

[googlebot]

So there's good news and bad news.

👍 The good news is that everyone that needs to sign a CLA (the pull request submitter and all commit authors) have done so. Everything is all good there.

😕 The bad news is that it appears that one or more commits were authored by someone other than the pull request submitter. We need to confirm that they're okay with their commits being contributed to this project. Please have them confirm that here in the pull request.

Note to project maintainer: This is a terminal state, meaning the cla/google commit status will not change from this State. It's up to you to confirm consent of the commit author(s) and merge this pull request when appropriate.

[derekwaynecarr]

well, i hit the wrong button... @runcom -- can you drop my merge branch and rebase on master?

[derekwaynecarr]

fyi @sjenning

[runcom]

@derekwaynecarr done

[derekwaynecarr]

/test pull-cadvisor-e2e

[dashpole]

I plan to cut v0.27.2 to cherrypick #1770 into kubernetes 1.8.2.
Should this PR be included as well? @derekwaynecarr

[runcom]

This should be included yeah

[derekwaynecarr]

/test-/test pull-cadvisor-e2e

[derekwaynecarr]

@dashpole -- any idea why test results are not reporting?

[dashpole]

looks like it is just waiting on the CLA? Edit: Oh, it wont change from that state. Not sure why the other tests are not running

[runcom]

The bot says maintainers should check that and merge cause it's not going to, read comment from bot above