Added Docker role

roles/docker/tasks/docker-users.yml

@@ -0,0 +1,10 @@
+- name: Ensure docker users are added to the docker group
+  user:
+    name: "{{ item }}"
+    groups: docker
+    append: true
+  with_items: "{{ docker_users }}"
+  notify: restart docker
+
+- name: Reset ssh connection to apply user changes.
+  meta: reset_connection

roles/docker/tasks/docker.yml

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+- name: Install dependencies for Docker
+  apt:
+    name: "{{ docker_dependencies }}"
+    update_cache: true
+
+- name: Add Docker apt key.
+  get_url:
+    url: "{{ docker_apt_gpg_key }}"
+    dest: /etc/apt/trusted.gpg.d/docker.asc
+    mode: '0644'
+    force: true
+  register: add_repository_key
+
+- name: Add Docker repository
+  apt_repository:
+    repo: "{{ docker_apt_repository }}"
+    state: present
+    update_cache: true
+
+- name: Install Docker packages
+  apt:
+    name: "{{ docker_packages }}"
+
+- name: Ensure /etc/docker/ directory exists
+  file:
+    path: /etc/docker
+    state: directory
+    mode: 0755
+  when: docker_daemon_options.keys() | length > 0
+
+- name: Configure Docker daemon options
+  copy:
+    content: "{{ docker_daemon_options | to_nice_json }}"
+    dest: /etc/docker/daemon.json
+    mode: 0644
+  when: docker_daemon_options.keys() | length > 0
+  notify: restart docker
+
+- name: Ensure Docker is started and enabled at boot.
+  service:
+    name: docker
+    state: started
+    enabled: true
+
+- name: Get docker group info using getent.
+  getent:
+    database: group
+    key: docker
+    split: ':'
+  when: docker_users | length > 0
+
+- name: Check if there are any users to add to the docker group
+  set_fact:
+    add_to_group: true
+  when:
+    - docker_users | length > 0
+    - item not in ansible_facts.getent_group["docker"][2]
+  with_items: "{{ docker_users }}"
+
+- include_tasks: docker-users.yml
+  when: add_to_group is defined

roles/docker/tasks/main.yml

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+---
+# tasks file for docker
+- import_tasks: docker.yml
+  become: true