deploy.yml

---
- name: Deploy Calculator App with Docker
  hosts: local
  become: no
  vars:
    docker_hub_username: "seifeldinzook"
    docker_image_name: "calculator-app"
    docker_image_tag: "latest"
    container_name: "calculator-container"
    host_port: 8080
    container_port: 80

  tasks:
    - name: Check if Docker is installed
      command: docker --version
      register: docker_check
      changed_when: false
      failed_when: false

    - name: Display Docker check status
      debug:
        msg: "Docker is installed: {{ docker_check.stdout }}"
      when: docker_check.rc == 0

    - name: Fail if Docker is not installed
      fail:
        msg: "Docker is not installed. Please install Docker first."
      when: docker_check.rc != 0

    - name: Stop and remove existing container if it exists
      docker_container:
        name: "{{ container_name }}"
        state: absent
      ignore_errors: yes
      when: docker_check.rc == 0

    - name: Pull the latest Docker image
      docker_image:
        name: "{{ docker_hub_username }}/{{ docker_image_name }}:{{ docker_image_tag }}"
        source: pull
        force_source: yes
      when: docker_check.rc == 0

    - name: Run the Docker container
      docker_container:
        name: "{{ container_name }}"
        image: "{{ docker_hub_username }}/{{ docker_image_name }}:{{ docker_image_tag }}"
        state: started
        restart_policy: unless-stopped
        ports:
          - "{{ host_port }}:{{ container_port }}"
        detach: yes
      when: docker_check.rc == 0