---
# Проверка работы systemd, docker и docker-compose в образах
# Автор: Сергей Антропов
# Сайт: https://devops.org.ru

- name: Verify systemd, docker and docker-compose services
  hosts: all
  gather_facts: true
  tasks:
    - name: Display OS information
      debug:
        msg: "Тестирование на {{ ansible_distribution }} {{ ansible_distribution_version }}"

    - name: Check if systemd is available and running
      systemd:
        name: systemd
        state: started
      register: systemd_status
      failed_when: false

    - name: Display systemd status
      debug:
        msg: "Systemd статус: {{ 'Доступен и запущен' if systemd_status is succeeded else 'Недоступен или не запущен' }}"

    - name: Check systemd version
      command: systemd --version
      register: systemd_version
      failed_when: false
      changed_when: false

    - name: Display systemd version
      debug:
        msg: "Версия systemd: {{ systemd_version.stdout_lines[0] if systemd_version.stdout_lines else 'Не определена' }}"

    - name: Check if docker service exists
      stat:
        path: /usr/bin/docker
      register: docker_binary

    - name: Check if docker service exists (alternative path)
      stat:
        path: /usr/local/bin/docker
      register: docker_binary_alt

    - name: Display docker binary status
      debug:
        msg: "Docker binary: {{ 'Найден в /usr/bin/docker' if docker_binary.stat.exists else ('Найден в /usr/local/bin/docker' if docker_binary_alt.stat.exists else 'Не найден') }}"

    - name: Check docker version
      command: docker --version
      register: docker_version
      failed_when: false
      changed_when: false

    - name: Display docker version
      debug:
        msg: "Версия Docker: {{ docker_version.stdout if docker_version.stdout else 'Docker не установлен' }}"

    - name: Check if docker daemon is running
      command: docker info
      register: docker_info
      failed_when: false
      changed_when: false

    - name: Display docker daemon status
      debug:
        msg: "Docker daemon: {{ 'Запущен' if docker_info is succeeded else 'Не запущен или недоступен' }}"

    - name: Check if docker-compose binary exists
      stat:
        path: /usr/local/bin/docker-compose
      register: docker_compose_binary

    - name: Check if docker-compose binary exists (alternative path)
      stat:
        path: /usr/bin/docker-compose
      register: docker_compose_binary_alt

    - name: Check if docker compose plugin exists
      command: docker compose version
      register: docker_compose_plugin
      failed_when: false
      changed_when: false

    - name: Display docker-compose status
      debug:
        msg: "Docker Compose: {{ 'Найден как binary' if docker_compose_binary.stat.exists or docker_compose_binary_alt.stat.exists else ('Найден как plugin' if docker_compose_plugin is succeeded else 'Не найден') }}"

    - name: Display docker-compose version
      debug:
        msg: "Версия Docker Compose: {{ docker_compose_plugin.stdout if docker_compose_plugin is succeeded else 'Docker Compose не установлен' }}"

    - name: Test docker functionality
      command: docker run --rm hello-world
      register: docker_test
      failed_when: false
      changed_when: false

    - name: Display docker test result
      debug:
        msg: "Тест Docker: {{ 'Успешно' if docker_test is succeeded else 'Ошибка - ' + docker_test.stderr }}"

    - name: Check systemd services status
      command: systemctl list-units --type=service --state=running
      register: running_services
      failed_when: false
      changed_when: false

    - name: Display running services count
      debug:
        msg: "Количество запущенных сервисов: {{ running_services.stdout_lines | length }}"

    - name: Check for docker-related systemd services
      command: systemctl list-units --type=service | grep -i docker
      register: docker_services
      failed_when: false
      changed_when: false

    - name: Display docker services
      debug:
        msg: "Docker сервисы: {{ docker_services.stdout_lines if docker_services.stdout_lines else 'Не найдены' }}"

    - name: Final summary
      debug:
        msg: |
          ========================================
          РЕЗУЛЬТАТЫ ПРОВЕРКИ ОБРАЗА {{ ansible_distribution }}:
          ========================================
          Systemd: {{ '✓ Работает' if systemd_status is succeeded else '✗ Не работает' }}
          Docker: {{ '✓ Установлен и работает' if docker_info is succeeded else '✗ Не установлен или не работает' }}
          Docker Compose: {{ '✓ Доступен' if (docker_compose_binary.stat.exists or docker_compose_binary_alt.stat.exists or docker_compose_plugin is succeeded) else '✗ Недоступен' }}
          ========================================