[rootless docker] Allow user to configure rootless Docker by passing docker_rootless: true to role config

defaults/main.yml

@@ -7,6 +7,7 @@ docker_packages:
   - "docker-{{ docker_edition }}-rootless-extras"
   - "containerd.io"
 docker_packages_state: present
+docker_rootless: false
 
 # Service options.
 docker_service_manage: true

tasks/main.yml

@@ -65,13 +65,17 @@
   when: docker_daemon_options.keys() | length > 0
   notify: restart docker
 
-- name: Ensure Docker is started and enabled at boot.
+- name: Ensure Docker is started and enabled at boot
   service:
     name: docker
     state: "{{ docker_service_state }}"
     enabled: "{{ docker_service_enabled }}"
   ignore_errors: "{{ ansible_check_mode }}"
-  when: docker_service_manage | bool
+  when: docker_service_manage | bool and docker_rootless == false
+
+- name: Setting up docker daemon as non-root
+  include_tasks: docker-rootless.yml
+  when: docker_rootless == true
 
 - name: Ensure handlers are notified now to avoid firewall conflicts.
   meta: flush_handlers