---
- name: Download Docker's official GPG key
  get_url:
    url: https://download.docker.com/linux/ubuntu/gpg
    dest: /tmp/docker.gpg
    mode: '0644'

- name: Convert and install Docker GPG key
  shell: gpg --dearmor < /tmp/docker.gpg > /etc/apt/keyrings/docker.gpg

- name: Set permissions on Docker GPG key
  file:
    path: /etc/apt/keyrings/docker.gpg
    mode: '0644'

- name: Clean up temporary GPG key file
  file:
    path: /tmp/docker.gpg
    state: absent