refactor: docker role (#6)

use official docker images instead of outdated apt packages following official docker installation docs

roles/docker/tasks/main.yml

@@ -1,17 +1,55 @@
 ---
-- name: Install necessary Docker packages
+- name: Install Docker prerequisites
   ansible.builtin.apt:
     name:
-      - docker.io
+      - ca-certificates
-      - docker-compose
+      - curl
+    state: present
+    update_cache: true
+  become: true
+
+- name: Ensure APT keyrings directory exists
+  ansible.builtin.file:
+    path: /etc/apt/keyrings
+    state: directory
+    mode: "0755"
+  become: true
+
+- name: Download Docker official GPG key
+  ansible.builtin.get_url:
+    url: "https://download.docker.com/linux/{{ ansible_distribution | lower }}/gpg"
+    dest: /etc/apt/keyrings/docker.asc
+    mode: "0644"
+  become: true
+
+- name: Add Docker official APT repository
+  ansible.builtin.apt_repository:
+    repo: >-
+      deb [arch={{ ansible_pkg_arch }} signed-by=/etc/apt/keyrings/docker.asc]
+      https://download.docker.com/linux/{{ ansible_distribution | lower }}
+      {{ ansible_distribution_release }} stable
+    state: present
+    filename: docker
+    update_cache: true
+  become: true
+
+- name: Install modern Docker CE packages
+  ansible.builtin.apt:
+    name:
+      - docker-ce
+      - docker-ce-cli
+      - containerd.io
+      - docker-buildx-plugin
+      - docker-compose-plugin
     state: present
   become: true
 
-- name: Ensure Docker service is running
+- name: Ensure Docker services are running and enabled
   ansible.builtin.service:
     name: docker
     state: started
     enabled: true
+  become: true
 
 - name: Create docker user for container execution
   ansible.builtin.user:
@@ -24,6 +62,13 @@
     create_home: false
   become: true
 
+- name: Add deployment user to docker group
+  ansible.builtin.user:
+    name: deployment
+    groups: docker
+    append: true
+  become: true
+
 - name: Create target for docker compose
   ansible.builtin.file:
     path: /opt/docker