The ceph mgr command output is printed on stderr instead of stdout which
prevent to set the changed flag to false if the module is already enabled.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
This adds ceph_mgr_module ansible module for replacing the command module
usage with the ceph mgr module enable/disable commands.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>