roles/ci_agent/tasks/docker.yml

- name: Install Docker gpg key for Apt
  apt_key:
    url: https://download.docker.com/linux/debian/gpg
    state: present

- name: Setup Docker Apt repository
  apt_repository:
    repo: deb https://download.docker.com/linux/debian {{ ansible_distribution_release }} stable
    filename: docker
    state: present

- name: Install Docker Packages
  apt:
    name: "{{ packages }}"
  vars:
    packages:
      - containerd.io
      - docker-ce
      - docker-ce-cli

- name: Install multi-architecture support for Docker
  apt:
    name: "{{ packages }}"
    state: latest
  vars:
    packages:
      - binfmt-support
      - qemu
      - qemu-user-static

- name: Install kill-old-docker.sh
  copy:
    src: kill-old-docker.sh
    dest: /usr/local/bin/kill-old-docker.sh
    mode: 0755

- name: Add kill-old-docker.sh cron entry
  cron:
    name: Kill old docker containers
    hour: '19'
    job: /usr/local/bin/kill-old-docker.sh

- name: Add docker prune cron entry
  cron:
    name: Docker prune
    hour: '19'
    job: /usr/bin/docker system prune -a -f --filter "until=72h"

- name: Add Jenkins user to docker group
  user:
    name: jenkins
    groups:
      - docker
    append: yes