---
# Setup Playbook for Docker Swarm Cluster
# This playbook installs essential dependencies including Python, Docker, and creates swap

- name: Setup Docker Swarm nodes
  hosts: swarm_nodes
  become: yes
  gather_facts: no
  
  vars:
    swap_file_size_mb: 1024
    swap_file_state: present
    swap_file_existing_size_mb: 0
  
  roles:
    - role: geerlingguy.swap
      swap_file_size_mb: 1024
      swap_file_state: present
  
  tasks:
    - name: Update apt package index
      apt:
        update_cache: yes
        cache_valid_time: 3600
    
    - name: Install essential packages
      apt:
        name:
          - python3
          - python3-pip
          - ansible
          - curl
          - wget
          - sudo
          - util-linux
          - apt-transport-https
          - ca-certificates
          - gnupg
          - lsb-release
        state: present
    
    - name: Create sudoers entry for vagrant user
      lineinfile:
        path: /etc/sudoers.d/vagrant
        line: "vagrant ALL=(ALL) NOPASSWD:ALL"
        create: yes
        mode: '0440'
    
    - name: Add Docker GPG key
      apt_key:
        url: https://download.docker.com/linux/debian/gpg
        state: present
    
    - name: Add Docker repository
      apt_repository:
        repo: "deb [arch=amd64] https://download.docker.com/linux/debian bookworm stable"
        state: present
        update_cache: yes
    
    - name: Install Docker CE
      apt:
        name:
          - docker-ce
          - docker-ce-cli
          - containerd.io
          - docker-compose-plugin
        state: present
    
    - name: Add vagrant user to docker group
      user:
        name: vagrant
        groups: docker
        append: yes
    
    - name: Start and enable Docker service
      systemd:
        name: docker
        state: started
        enabled: yes
    
    
    - name: Verify Python installation
      command: python3 --version
      register: python_version
      changed_when: false
    
    - name: Show Python version
      debug:
        msg: "{{ python_version.stdout }}"
    
    - name: Verify pip installation
      command: pip3 --version
      register: pip_version
      changed_when: false
    
    - name: Show pip version
      debug:
        msg: "{{ pip_version.stdout }}"
    
    - name: Create test directory
      file:
        path: /home/vagrant/test
        state: directory
        owner: vagrant
        group: vagrant
        mode: '0755'
    
    - name: Display system information
      command: uname -a
      register: system_info
      changed_when: false
    
    - name: Show system information
      debug:
        msg: "{{ system_info.stdout }}"
    
    - name: Check memory and swap usage
      command: free -m
      register: memory_info
      changed_when: false
    
    - name: Show memory and swap usage
      debug:
        msg: "{{ memory_info.stdout_lines }}"