This is not only for monitors, but also mds, rgw and rbd mirror so
making the var name more generic:
ceph_docker_enable_centos_extra_repo
Signed-off-by: Sébastien Han <seb@redhat.com>
Install package from official repos rather than pip when using RHEL.
This commit fix https://bugzilla.redhat.com/show_bug.cgi?id=1420855
Also this commit Refact all `roles/ceph-*/tasks/docker/pre_requisite.yml`
to avoid a lot of duplicated code.
Fix: #1303
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>