lint: use command instead of shell

Use command when the tasks does not have any pipes or wilcards.

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

roles/ceph-iscsi-gw/tasks/deploy_ssl_keys.yml

@@ -19,7 +19,7 @@
 
 - name: create ssl crt/key files
   local_action:
-    module: shell openssl req -newkey rsa:2048 -nodes -keyout {{ fetch_directory }}/{{ fsid }}/iscsi-gateway.key -x509 -days 365 -out {{ fetch_directory }}/{{ fsid }}/iscsi-gateway.crt -subj "/C=US/ST=./L=./O=RedHat/OU=Linux/CN={{ ansible_hostname }}"
+    module: command openssl req -newkey rsa:2048 -nodes -keyout {{ fetch_directory }}/{{ fsid }}/iscsi-gateway.key -x509 -days 365 -out {{ fetch_directory }}/{{ fsid }}/iscsi-gateway.crt -subj "/C=US/ST=./L=./O=RedHat/OU=Linux/CN={{ ansible_hostname }}"
   run_once: True
   with_items: "{{ crt_files_exist.results }}"
   when:

roles/ceph-mon/tasks/set_osd_pool_default_pg_num.yml

@@ -3,8 +3,7 @@
 # the same behaviour
 #
 - name: get default value for osd_pool_default_pg_num
-  shell: |
-   {{ docker_exec_cmd }} ceph --cluster {{ cluster }} daemon mon.{{ monitor_name }} config get osd_pool_default_pg_num
+  command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} daemon mon.{{ monitor_name }} config get osd_pool_default_pg_num"
   failed_when: false
   changed_when: false
   run_once: true

roles/ceph-nfs/tasks/start_nfs.yml

@@ -17,7 +17,7 @@
   run_once: true
 
 - name: create an empty rados index object
-  shell: "{{ docker_exec_cmd_nfs | default('') }} rados -p {{ cephfs_data }} --cluster {{ cluster }} put {{ ceph_nfs_rados_export_index }} /dev/null"
+  command: "{{ docker_exec_cmd_nfs | default('') }} rados -p {{ cephfs_data }} --cluster {{ cluster }} put {{ ceph_nfs_rados_export_index }} /dev/null"
   when:
     - ceph_nfs_rados_backend
     - rados_index_exists.rc != 0

roles/ceph-osd/tasks/scenarios/collocated.yml

@@ -3,7 +3,7 @@
 # to ensure osd disk prepare finishes before
 # starting the next task
 - name: prepare ceph containerized osd disk collocated
-  shell: |
+  command: |
     docker run --net=host \
     --pid=host \
     --privileged=true \
@@ -28,7 +28,7 @@
     - item.0.partitions|length == 0
 
 - name: automatic prepare ceph containerized osd disk collocated
-  shell: |
+  command: |
     docker run --net=host \
     --pid=host \
     --privileged=true \

roles/ceph-osd/tasks/scenarios/non-collocated.yml

@@ -3,7 +3,7 @@
 # to ensure osd disk prepare finishes before
 # starting the next task
 - name: prepare ceph "{{ osd_objectstore }}" containerized osd disk(s) non-collocated
-  shell: |
+  command: |
     docker run --net=host \
     --pid=host \
     --privileged=true \
@@ -30,7 +30,7 @@
     - item.0.partitions|length == 0
 
 - name: prepare ceph "{{ osd_objectstore }}" containerized osd disk(s) non-collocated with a dedicated device for db and wal
-  shell: |
+  command: |
     docker run --net=host \
     --pid=host \
     --privileged=true \