keycloak: Adjust directory permissions

This patch reduces the permissions on the install directory to just the root user and also fixes the ansible-lint issue for specifying the `mode`.
For all container mounted volumes, the ansible-lint rule is disabled, as the container takes care of the permissions etc.

roles/keycloak/tasks/main.yml

@@ -33,6 +33,9 @@
   file:
     path: "{{ item }}"
     state: directory
+    mode: '0700'
+    owner: 'root'
+    group: 'root'
   with_items:
     - "{{ keycloak_install_location }}"
   tags:
@@ -40,7 +43,7 @@
   become: true
 
 - name: Create data directory
-  file:
+  file: # noqa 208 # Container manages permissions on its own
     path: "{{ item }}"
     state: directory
     setype: "container_file_t"