update docker role & add separate play

roles/docker/tasks/main.yml

@@ -1,45 +1,23 @@
 ---
-- name: Clean install by removing any docker package
-  package: name={{ item }} state=absent
-  with_items: "{{ clean_install_remove_packages }}"
+- name: Assert supported distribution
+  ansible.builtin.include_tasks: check_distro.yml
+  tags:
+    - docker_check_distro
 
-- name: Ensure curl & ca-certs are installed 
-  package:
-    name:
-      - ca-certificates
-      - curl
-      - gnupg
-    state: latest
+- name: Install Docker
+  ansible.builtin.include_tasks: install.yml
+  when: docker_distro_supported
+  tags:
+    - docker_install
 
-- name: Ensure docker keyring file exists
-  file:
-    path: /etc/apt/keyrings/docker.gpg
-    state: touch
-  
-- name: Download docker gpg key and add to keyrings
-  shell: |
-    install -m 0755 -d /etc/apt/keyrings
-    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor --yes -o /etc/apt/keyrings/docker.gpg
-    chmod a+r /etc/apt/keyrings/docker.gpg
+- name: Configure Docker group membership
+  ansible.builtin.include_tasks: users.yml
+  when: docker_distro_supported and docker_users | length > 0
+  tags:
+    - docker_users
 
-- name: Sign and add docker deb source
-  shell: |
-    echo \
-      "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
-      "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
-      tee /etc/apt/sources.list.d/docker.list > /dev/null
-
-- name: Update apt sources
-  become: true
-  apt:
-    update_cache: yes
-    cache_valid_time: 1
-
-- name: Install docker packages
-  package: name={{ item }} state=latest
-  with_items: "{{ install_packages }}"
-
-- name: Ensure group docker exists
-  user:
-    name: docker
-    state: present
+- name: Manage Docker service
+  ansible.builtin.include_tasks: service.yml
+  when: docker_distro_supported
+  tags:
+    - docker_service