Fix mariadb role when used with check mode

This patch adds check_mode: false to tasks
in restart_services.yml which just checking
some WSREP status and if port is UP.

Closes-Bug: #2052501
Change-Id: I92a591900d85138a87991a18dd4339efd053ef1b

ansible/roles/mariadb/tasks/restart_services.yml

@@ -23,6 +23,7 @@
     timeout: 60
     search_regex: "MariaDB"
   register: check_mariadb_port
+  check_mode: false
   until: check_mariadb_port is success
   retries: 10
   delay: 6
@@ -41,6 +42,7 @@
   retries: 10
   delay: 6
   no_log: true
+  check_mode: false
   when:
     # NOTE(yoctozepto): we don't want to wait for new nodes to fully sync
     # with an existing cluster as this could take time

releasenotes/notes/bug-2052501-6dfd9e5443fdc6d1.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixes mariadb role deployment when using Ansible check mode.
+    `LP#2052501 <https://bugs.launchpad.net/kolla-ansible/+bug/2052501>`__