In DevStack OSProfiler is by default configured to use messaging
driver with Ceilometer backend. User can change the driver, but
still needs to install collector/storage manually. This patch
introduces configuration option `OSPROFILER_COLLECTOR` which is
used to specify which collector/storage to install into DevStack.
Currently 2 values are supported:
* `redis` to install Redis server and use Redis driver
* <empty> to keep the default behavior and use messaging driver
To test the patch on DevStack, the following lines are needed in local.conf:
enable_plugin osprofiler https://git.openstack.org/openstack/osprofiler refs/changes/06/527406/5
OSPROFILER_BRANCH=refs/changes/06/527406/5
OSPROFILER_COLLECTOR=redis
Change-Id: Ia9763605db95b3f35c8b0e51211f96ee0dd3a82d
f15a7e47e6