changed variable structure

roles/docker/tasks/main.yml

@@ -36,9 +36,9 @@
     name: docker
     state: present
 
-- name: Add user to group docker | "{{ user['name'] }}"
+- name: Add user to group docker | "{{ system_user_name }}"
   ansible.builtin.user:
-    name: "{{ user['name'] }}"
+    name: "{{ system_user_name }}"
     groups:
       - docker
     append: true
@@ -57,6 +57,6 @@
 - name: Create docker dir if it does not exist
   become: false
   ansible.builtin.file:
-    path: /home/{{ user['name'] }}/docker/
+    path: /home/{{ system_user_name }}/docker/
     state: directory
     mode: '0755'