purge-cluster: Do not fail on systemd commands

The systemd can't stop services if the unit files were removed before
the cluster was purged. We should just ignore these.

Signed-off-by: Boris Ranto <branto@redhat.com>

infrastructure-playbooks/purge-cluster.yml

@@ -67,6 +67,7 @@
       name: ceph-mds@{{ ansible_hostname }}
       state: stopped
       enabled: no
+    failed_when: false
     when: ansible_service_mgr == 'systemd'
 
   - name: stop ceph mdss
@@ -97,6 +98,7 @@
       name: ceph-mgr@{{ ansible_hostname}}
       state: stopped
       enabled: no
+    failed_when: false
     when: ansible_service_mgr == 'systemd'
 
 - name: purge ceph rgw cluster
@@ -118,6 +120,7 @@
       name: ceph-radosgw@rgw.{{ ansible_hostname }}
       state: stopped
       enabled: no
+    failed_when: false
     when: ansible_service_mgr == 'systemd'
 
   - name: stop ceph rgws
@@ -148,6 +151,7 @@
     service:
       name: ceph-rbd-mirror@admin.service
       state: stopped
+    failed_when: false
     when: ansible_service_mgr == 'systemd'
 
   - name: stop ceph rbd mirror on ubuntu
@@ -174,6 +178,7 @@
     service:
       name: nfs-ganesha
       state: stopped
+    failed_when: false
     when: ansible_service_mgr == 'systemd'
 
   - name: stop ceph nfss
@@ -478,6 +483,7 @@
       name: ceph-mon@{{ ansible_hostname }}
       state: stopped
       enabled: no
+    failed_when: false
     when: ansible_service_mgr == 'systemd'
 
   - name: stop ceph mons