switch: disable all ceph units

Prior to this commit we were only disabling ceph-osd units, but forgot
the ceph.target which is controlling everything and will restart the
ceph-osd units at each reboot.
Now that everything gets disabled there won't be any conflicts between
the old non-container and the new container units.

Signed-off-by: Sébastien Han <seb@redhat.com>

infrastructure-playbooks/switch-from-non-containerized-to-containerized-ceph-daemons.yml

@@ -213,7 +213,7 @@
     # pre-tasks for following importing
     - name: collect running osds and ceph-disk unit(s)
       shell: |
-        systemctl list-units | grep "loaded active" | grep -Eo 'ceph-osd@[0-9]+.service|ceph-disk@dev-[a-z]{3,4}[0-9]{1}.service'
+        systemctl list-units | grep "loaded active" | grep -Eo 'ceph-osd@[0-9]+.service|ceph-disk@dev-[a-z]{3,4}[0-9]{1}.service|ceph-volume|ceph\.target'
       register: running_osds
       changed_when: false
       failed_when: false
@@ -234,7 +234,7 @@
         - not collect_devices.get("skipped")
         - collect_devices != []
 
-    - name: stop/disable/mask non-containerized ceph osd(s) and ceph-disk units (if any)
+    - name: stop/disable non-containerized ceph osd(s), ceph-disk units (if any) and ceph-volume units (if any)
       systemd:
         name: "{{ item }}"
         state: stopped
@@ -242,6 +242,16 @@
       with_items: "{{ running_osds.stdout_lines | default([])}}"
       when: running_osds != []
 
+    - name: remove old ceph-osd systemd units
+      file:
+        path: "{{ item }}"
+        state: absent
+      with_items:
+        - /usr/lib/systemd/system/ceph-osd.target
+        - /usr/lib/systemd/system/ceph-osd@.service
+        - /usr/lib/systemd/system/ceph-volume@.service
+        - /etc/systemd/system/ceph.target.wants
+
     - set_fact:
         ceph_uid: 64045
       when: ceph_docker_image_tag | string is match("latest") or ceph_docker_image_tag | string is search("ubuntu")