Better --check compatibility for ceph-rgw role

Carefully chosen "always_run: true" parameters for read-only tasks that
register variables. This enables --check runs (at least on deployed
clusters).

roles/ceph-rgw/tasks/docker/checks.yml

@@ -16,6 +16,7 @@
   with_items: "{{ ceph_config_keys }}"
   changed_when: false
   failed_when: false
+  always_run: true
   register: statleftover
 
 - name: fail if we find existing cluster files

roles/ceph-rgw/tasks/docker/copy_configs.yml

@@ -17,6 +17,7 @@
   changed_when: false
   become: false
   failed_when: false
+  always_run: true
   register: statconfig
   when:
     - nfs_obj_gw

roles/ceph-rgw/tasks/docker/dirs_permissions.yml

@@ -5,6 +5,7 @@
   shell: docker inspect "docker.io/{{ ceph_rgw_docker_username }}/{{ ceph_rgw_docker_imagename }}:{{ ceph_rgw_docker_image_tag }}" | awk -F '=' '/CEPH_VERSION/ { gsub ("\",", "", $2); print $2 }' | uniq
   changed_when: false
   failed_when: false
+  always_run: true
   run_once: true
   register: ceph_version
 

roles/ceph-rgw/tasks/docker/fetch_configs.yml

@@ -11,6 +11,7 @@
   changed_when: false
   become: false
   ignore_errors: true
+  always_run: true
   register: statconfig
 
 - name: try to fetch ceph config and keys

roles/ceph-rgw/tasks/docker/main.yml

@@ -4,9 +4,11 @@
   register: ceph_health
   changed_when: false
   failed_when: false
+  always_run: true
 
 - name: check if it is Atomic host
   stat: path=/run/ostree-booted
+  always_run: true
   register: stat_ostree
 
 - name: set fact for using Atomic host

roles/ceph-rgw/tasks/docker/selinux.yml

@@ -3,6 +3,7 @@
   command: getenforce
   register: sestatus
   changed_when: false
+  always_run: true
 
 - name: set selinux permissions
   shell: chcon -Rt svirt_sandbox_file_t {{ item }}

roles/ceph-rgw/tasks/multisite/checks.yml

@@ -4,21 +4,25 @@
   register: realmcheck
   failed_when: False
   changed_when: False
+  always_run: True
 
 - name: check if the zonegroup already exists
   command: radosgw-admin zonegroup get --rgw-zonegroup={{ rgw_zonegroup }}
   register: zonegroupcheck
   failed_when: False
   changed_when: False
+  always_run: True
 
 - name: check if the zone already exists
   command: radosgw-admin zone get --rgw-zone={{ rgw_zone }}
   register: zonecheck
   failed_when: False
   changed_when: False
+  always_run: True
 
 - name: check if the system user already exists
   command: radosgw-admin user info --uid=zone.user
   register: usercheck
   failed_when: False
   changed_when: False
+  always_run: True