main.yml

---
  - name: Configure journald for persistent storage
    ini_file:
      dest: /etc/systemd/journald.conf
      section: Journal
      option: Storage
      value: Persistent
      no_extra_spaces: yes
    notify:
      - reload systemd-journald

  - name: Install gnupg2
    apt:
      name: gnupg2
      update_cache: yes

  - name: Add Docker CE repository key
    apt_key:
      url: https://download.docker.com/linux/debian/gpg
      id: 9DC858229FC7DD38854AE2D88D81803C0EBFCD88
      state: present

  - name: Add Docker CE repository
    apt_repository:
      repo: deb [arch=amd64] https://download.docker.com/linux/debian bullseye stable

  - name: Install Docker
    apt:
      name: "{{ packages }}"
      update_cache: yes
      state: present
    vars:
      packages:
        - "docker-ce={{ docker_ce_package_version }}"
        - "docker-ce-cli={{ docker_ce_cli_package_version }}"
        - "containerd.io={{ containerd_io_package_version }}"

  - name: Enable Docker service
    systemd:
      name: docker
      enabled: yes
      masked: no

  - name: Configure Docker daemon
    copy:
      src: daemon.json
      dest: /etc/docker/daemon.json
      owner: root
      group: root
      mode: 0644
    notify:
      - reload docker

  - name: Make sure Docker is running
    systemd:
      name: docker
      state: started

  - name: Add users to Docker group
    user:
      name: "{{ item }}"
      groups: docker
      append: yes
    loop:
      - skoranda
      - satkinson

  - name: Install Python3 pip
    apt:
      name: python3-pip
      update_cache: no

  - name: Install Python3 docker module
    pip:
      executable: /usr/bin/pip3
      name: docker
      state: present

  - name: Initialize single node swarm
    community.docker.docker_swarm:
      state: present