checks added

tasks/mariadb_root.yml

@@ -36,6 +36,7 @@
 
 - name: Check the current auth method
   command: mysql -uroot -B -N -e "SELECT Plugin FROM user WHERE User='root';" mysql
+  check_mode: false
   register: mariadb_root_auth_plugin
   tags:
     - mariadb

tasks/mariadb_root_socket.yml

@@ -5,6 +5,7 @@
 
     - name: Enable MariaDB root logins with a socket
       command: mysql -uroot -p{{ mariadb_root_password }} -e "ALTER USER root@localhost IDENTIFIED VIA unix_socket; FLUSH PRIVILEGES;" mysql
+      when: ( mariadb_root_password is defined ) and ( mariadb_root_password | length > 0 )
 
     - name: Remove /root/.my.cnf
       file: