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/directory_setup.yml

@@ -14,11 +14,11 @@
     - "{{ docker.directories.compose }}"
   become: true
 
-- name: Set ownership to {{ user }}
+- name: Set ownership to {{ ansible_user_id }}
   ansible.builtin.file:
     path: "{{ item }}"
-    owner: "{{ user }}"
-    group: "{{ user }}"
+    owner: "{{ ansible_user_id }}"
+    group: "{{ ansible_user_id }}"
   loop:
     - "{{ docker.directories.local }}"
     - "{{ docker.directories.config }}"