refactor(ansible): use ansible_user_id and add root package condition

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/docker_host/tasks/provision.yml

@@ -6,8 +6,8 @@
 - name: Run Keycloak tasks
   ansible.builtin.file:
     path: "{{ docker.directories.local }}/keycloak/"
-    owner: "{{ user }}"
-    group: "{{ user }}"
+    owner: "{{ ansible_user_id }}"
+    group: "{{ ansible_user_id }}"
     state: directory
     mode: "0755"
   when: is_keycloak_host | bool
@@ -17,8 +17,8 @@
   ansible.builtin.template:
     src: "templates/keycloak/realm.json.j2"
     dest: "{{ docker.directories.local }}/keycloak/{{ keycloak.realm }}-realm.json"
-    owner: "{{ user }}"
-    group: "{{ user }}"
+    owner: "{{ ansible_user_id }}"
+    group: "{{ ansible_user_id }}"
     mode: "644"
     backup: true
   when: is_keycloak_host | bool