ceph-mds: group similar tasks in create_mds_filesystem.yml

Group similar tasks together using block keyword.

Signed-off-by: Rishabh Dave <ridave@redhat.com>
(cherry picked from commit 1a4dccdbb9)

roles/ceph-mds/tasks/create_mds_filesystems.yml

@@ -1,11 +1,13 @@
 ---
-- name: compile a list of pool names
+- name: check and deploy filesystem pools
+  delegate_to: "{{ groups[mon_group_name][0] }}"
+  block:
+    - name: check if filesystem pool already exists
+      block:
+        - name: compile a list of pool names
           set_fact:
             cephfs_pool_names: "{{ cephfs_pools | map(attribute='name') | list }}"
 
-- name: check if filesystem pool already exists
-  delegate_to: "{{ groups[mon_group_name][0] }}"
-  block:
         - name: get and store list of filesystem pools
           command: "{{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }} osd pool ls"
           changed_when: false
@@ -16,13 +18,12 @@
             fs_pools_created: True
           when: osd_pool_ls.stdout_lines | intersect(cephfs_pool_names) | length > 0
 
-- name: deploy filesystem pools
+    - name: deploy filesystem pools
       when: fs_pools_created is not defined
-  delegate_to: "{{ groups[mon_group_name][0] }}"
       block:
         - name: create filesystem pools
           command: >
-        {{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }}
+            {{ hostvars[groups[mon_group_name][0]]['docker_exec_cmd'] | default('') }} ceph --cluster {{ cluster }}
             osd pool create {{ item.name }}
             {{ item.pg_num | default(item.pgs) | default(osd_pool_default_pg_num) }}
             {{ item.pgp_num | default(item.pgs) | default(item.pg_num) | default(osd_pool_default_pg_num) }}
@@ -48,26 +49,25 @@
           changed_when: false
           when: (item.min_size | default(osd_pool_default_min_size))|int > ceph_osd_pool_default_min_size
 
-- name: check if ceph filesystem already exists
-  command: "{{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }} fs get {{ cephfs }}"
-  register: check_existing_cephfs
-  changed_when: false
-  failed_when: false
-  delegate_to: "{{ groups[mon_group_name][0] }}"
-
-- name: create ceph filesystem
-  command: "{{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }} fs new {{ cephfs }} {{ cephfs_metadata }} {{ cephfs_data }}"
-  changed_when: false
-  delegate_to: "{{ groups[mon_group_name][0] }}"
-  when: check_existing_cephfs.rc != 0
-
-- name: assign application to cephfs pools
+        - name: assign application to cephfs pools
           command: "{{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }} osd pool application enable {{ item }} cephfs"
           with_items:
             - "{{ cephfs_data }}"
             - "{{ cephfs_metadata }}"
           changed_when: false
+
+- name: check and create ceph filesystem
   delegate_to: "{{ groups[mon_group_name][0] }}"
+  block:
+    - name: check if ceph filesystem already exists
+      command: "{{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }} fs get {{ cephfs }}"
+      register: check_existing_cephfs
+      changed_when: false
+      failed_when: false
+
+    - name: create ceph filesystem
+      command: "{{ docker_exec_cmd | default('') }} ceph --cluster {{ cluster }} fs new {{ cephfs }} {{ cephfs_metadata }} {{ cephfs_data }}"
+      changed_when: false
       when: check_existing_cephfs.rc != 0
 
 - name: set max_mds