demo-app/deploy/deploy.yml

---
# App ko VM par deploy karo. Idempotent hai - baar baar chalao, wahi nateeja.
- name: Deploy demo-app to VM
  hosts: "{{ target | default('production') }}"
  gather_facts: true

  vars:
    registry: "ns31240276.ip-51-195-4.eu:5000"
    image_name: "swim/demo-app"
    image_tag: "{{ lookup('env', 'IMAGE_TAG') | default('latest', true) }}"
    container_name: "demo-app"
    app_port: 8000

  tasks:
    - name: Registry me login
      community.docker.docker_login:
        registry_url: "{{ registry }}"
        username: "{{ lookup('env', 'REG_USER') }}"
        password: "{{ lookup('env', 'REG_PASS') }}"
      no_log: true

    - name: Nayi image pull karo
      community.docker.docker_image:
        name: "{{ registry }}/{{ image_name }}"
        tag: "{{ image_tag }}"
        source: pull
        force_source: true

    - name: Container chalao (purana apne aap replace hoga)
      community.docker.docker_container:
        name: "{{ container_name }}"
        image: "{{ registry }}/{{ image_name }}:{{ image_tag }}"
        state: started
        restart_policy: unless-stopped
        recreate: true
        published_ports:
          - "{{ app_port }}:8000"
        env:
          APP_VERSION: "{{ image_tag }}"
        healthcheck:
          test: ["CMD", "python", "-c", "import urllib.request;urllib.request.urlopen('http://127.0.0.1:8000/health')"]
          interval: 30s
          timeout: 3s
          retries: 3

    - name: App ke healthy hone ka wait
      ansible.builtin.uri:
        url: "http://127.0.0.1:{{ app_port }}/health"
        status_code: 200
      register: health
      retries: 12
      delay: 5
      until: health.status == 200

    - name: Deploy hui version verify karo
      ansible.builtin.uri:
        url: "http://127.0.0.1:{{ app_port }}/version"
        return_content: true
      register: ver

    - name: Nateeja dikhao
      ansible.builtin.debug:
        msg: "DEPLOYED -> {{ ver.json }}"

    - name: Purani images saaf karo
      community.docker.docker_prune:
        images: true
        images_filters:
          dangling: false
          until: 24h