---
- name: Installation de Docker, Docker Compose et Docker Swarm
  hosts: all
  become: true
  vars:
    docker_version: "20.10"
    docker_compose_version: "1.29.2"

  tasks:
    - name: Mise à jour du cache APT
      apt:
        update_cache: yes

    - name: Installation des paquets requis
      apt:
        name:
          - apt-transport-https
          - ca-certificates
          - curl
          - software-properties-common
        state: present

    - name: Ajout de la clé GPG officielle de Docker
      apt_key:
        url: https://download.docker.com/linux/ubuntu/gpg
        state: present

    - name: Ajout du dépôt Docker APT
      apt_repository:
        repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable"
        state: present

    - name: Mise à jour du cache APT après ajout du dépôt Docker
      apt:
        update_cache: yes

    - name: Installation de Docker CE
      apt:
        name: "docker-ce={{ docker_version }}*"
        state: present

    - name: Vérification de l'installation de Docker
      command: docker --version
      register: docker_version_result

    - name: Afficher la version de Docker installée
      debug:
        msg: "Docker version installed: {{ docker_version_result.stdout }}"

    - name: Ajout de l'utilisateur courant au groupe docker
      user:
        name: "{{ ansible_user_id }}"
        groups: docker
        append: yes

    - name: Téléchargement de Docker Compose
      get_url:
        url: "https://github.com/docker/compose/releases/download/{{ docker_compose_version }}/docker-compose-{{ ansible_system }}-{{ ansible_architecture }}"
        dest: "/usr/local/bin/docker-compose"
        mode: 'a+x'

    - name: Vérification de l'installation de Docker Compose
      command: docker-compose --version
      register: docker_compose_version_result

    - name: Afficher la version de Docker Compose installée
      debug:
        msg: "Docker Compose version installed: {{ docker_compose_version_result.stdout }}"

    - name: Initialisation de Docker Swarm (seulement si non initialisé)
      command: docker swarm init
      register: docker_swarm_result
      failed_when: docker_swarm_result.rc != 0 and "This node is already part of a swarm" not in docker_swarm_result.stderr
      ignore_errors: yes

    - name: Vérification de l'état de Docker Swarm
      command: docker info
      register: docker_info_result
      failed_when: "'Swarm: active' not in docker_info_result.stdout"

    - name: Afficher l'état de Docker Swarm
      debug:
        msg: "Docker Swarm status: {{ docker_info_result.stdout_lines | select('search', 'Swarm') | list }}"