Some upgrade scenarios (hammer->jewel) require that the ownership
of the ceph osd directories are changed from root:root to ceph:ceph.
This patch improves the upgrade experience by upgrading one OSD at
a time as opposed to stopping all services, changing file ownership,
and then restarting all services at once.
This patch makes use of the `setuser match path` directive in the
ceph.conf, which causes the ceph daemon to start as the owner of the
OSD's root directory. This allows the ceph OSDs to continue running
should an unforeseen incident occur as part of this upgrade.
Change-Id: I00fdbe0fd113c56209429341f0a10797e5baee5a
Closes-Bug: #1662591
The charm-helpers project have re-licensed to Apache 2.0
inline with the agreed licensing approach to intefaces,
layers and charms generally.
Resync helpers to bring charmhelpers inline with charm
codebase.
Change-Id: I9ab9a5d8801536e68e3ee672be0cc9accdb5fd9a
Add charmhelpers.contrib.hardening and calls to install,
config-changed, upgrade-charm and update-status hooks. Also
add new config option to allow one or more hardening
modules to be applied at runtime.
Change-Id: Ic417d678d3b0f7bfda5b393628a67297d7e79107
Billy Olsen