Oliver Walsh 58624abf5f Improve nova statedir ownership logic ...

The nova_compute container kolla config is currently set to recursively change
the ownership of /var/lib/nova to nova:nova on startup.

This is necessary when upgrading from an non-container deployment to a
containerized deployment as the nova uids are not consistent across the host
and container image.

If the nova instancedir is an NFS mount then open filehandles are
broken and every VM using that NFS export fails with I/O errors.

This change re-implements the nova statedir ownership logic to target only the
files/directories controlled by nova.

Requires dist-git change: https://review.rdoproject.org/r/14734

Change-Id: I57d421feb6356d28002e77fb9bfa50a397758cbf
Closes-bug: 1778465

2018-07-09 17:07:30 +01:00

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