The systemd unit files are being converted to use common roles to reduce
code sprawl throughout the playbooks. This change allows us to use a
common systemd_mount role as an include which will give us a consistent
experience when deploying services and setting up their resournces on
OS's that uses systemd.
Closes-Bug: #1774037
Change-Id: I11d083788cd388dab0695878193ab18af1b5038b
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
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