Files
kubernetes/pkg/volume/gce_pd
Kubernetes Submit Queue d3c09656d7 Merge pull request #66832 from msau42/udev
Automatic merge from submit-queue (batch tested with PRs 64645, 66832). 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>.

Detect if GCE PD udev link is wrong and try to correct it

**What this PR does / why we need it**:
udev can miss scsi events and not update device links properly when disks are detached and reattached to the same node in a different order.  This PR workarounds the issue by comparing the udev link name, which is the PD disk name, with the scsi disk serial number returned from scsi_id, and prevents mounting of the disk if the link is wrong.  It will also run `udevadm trigger` on the disk to try to correct the bad link.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
This fix prevents a GCE PD volume from being mounted if the udev device link is stale and tries to correct the link.
```
2018-08-01 17:13:03 -07:00
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2016-07-16 13:48:21 -04:00