Fix deprecation warning for ceph_client role.

Bare variables in with_ loops should instead use the “{{ var }}” syntax,
which helps eliminate ambiguity.
https://docs.ansible.com/ansible/porting_guide_2.0.html#deprecated

Change-Id: I6d54aca88c6f2bf0e60ee6cc89d5f06fb8d680c1

playbooks/roles/ceph_client/handlers/main.yml

@@ -18,7 +18,7 @@
     state: restarted
     pattern: "{{ item.1 }}"
   with_subelements:
-  - ceph_components
+  - "{{ ceph_components }}"
   - service
   when: inventory_hostname in groups[item.0.component]
   failed_when: false

playbooks/roles/ceph_client/tasks/ceph_auth.yml

@@ -24,7 +24,7 @@
   # output to put in a keyring; ceph admin should have already created the user
   shell: ceph auth get client.{{ item.1 }} >/dev/null && ceph auth get-or-create client.{{ item.1 }}
   with_subelements:
-  - ceph_components
+  - "{{ ceph_components }}"
   - client
   when: >
     inventory_hostname in groups[item.0.component] and

playbooks/roles/ceph_client/tasks/ceph_install_apt.yml

@@ -39,7 +39,7 @@
   retries: 5
   delay: 2
   with_subelements:
-  - ceph_components
+  - "{{ ceph_components }}"
   - package
   when: inventory_hostname in groups[item.0.component]
   notify: