devstack-plugin-ceph/devstack at c2622a82724f6d786bf1f848ddb6a5b0c484af2e - devstack-plugin-ceph - OpenDev: Free Software Needs Free Tools

Let the plugin setup and configure CephFS as the storage backend for
Manila. This is not done by default. Refer the README to do so.
Add 'pre_test_hook' and 'post_test_hook' scripts that would be needed
to configure Manila-Ceph CI jobs.
The following changes are also made:
* Install a development version of Ceph that is compatible with Manila's
 CephFSNative driver.
* The development version is a version greater than Infernalis. And
 from Infernalis onwards, the ceph daemons are run as user "ceph".
 So allow the daemons to run as user "ceph" for such versions.
* Enhance get_ceph_version to check Ceph version even when the
 ceph mon daemon is not up, by checking the CLI version.
Co-Authored-By: John Spray <john.spray@redhat.com>
Change-Id: I74314bfcc6b52d524bb84f2232a988f275b9afbf