---
- name: install wireguard
  apt: 
    name: wireguard
    update_cache: yes
    cache_valid_time: 3600

- name: generate private and public key pair
  args:
    creates: /etc/wireguard
  shell: |
    mkdir -p /etc/wireguard/
    cd /etc/wireguard/
    wg genkey | tee clank-privatekey | wg pubkey > clank-publickey
    chmod 0400 clank-privatekey
    chmod 0400 clank-publickey

- name: read public key
  command: cat /etc/wireguard/clank-publickey
  register: wireguard_publickey

- name: read private key
  command: cat /etc/wireguard/clank-privatekey
  register: wireguard_privatekey

- name: print publickey
  debug:
    msg: "{{ wireguard_publickey.stdout_lines[0] }}"

- name: Generate WireGuard configuration
  template:
    src: wireguard.conf.j2
    dest: /etc/wireguard/wg0.conf
  vars:
    interface_address: "{{ wireguard_peer_ip }}"
    listen_port: " {{ main_wireguard_port }} "
    private_key: "{{ wireguard_privatekey.stdout_lines[0] }}"
    allowed_ips: "10.0.9.0/24"
    peer_public_key: "{{ main_wireguard_public_key }}"
    endpoint: "{{ main_wireguard_ip }}:{{ main_wireguard_port }}"
    persistent_keepalive: 25

- name: enable and start wireguard service 
  systemd:
    name: "wg-quick@wg0"
    state: started
    enabled: yes


- name: Update apt cache
  apt:
    update_cache: yes

- name: Install prerequisite packages
  apt:
    name:
      - apt-transport-https
      - ca-certificates
      - curl
      - gnupg
      - lsb-release
    state: present

- 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 {{ ansible_lsb.codename }} stable"
    state: present

- name: Install Docker
  apt:
    name: docker-ce
    state: present

- name: Start and enable Docker service
  service:
    name: docker
    state: started
    enabled: yes

- name: Download Docker Compose
  get_url:
    url: "https://github.com/docker/compose/releases/latest/download/docker-compose-Linux-x86_64"
    dest: /usr/local/bin/docker-compose
    mode: 'u=rwx,g=rx,o=rx'

- name: Set executable permissions for Docker Compose
  file:
    path: /usr/local/bin/docker-compose
    mode: 'u=rwx,g=rx,o=rx'

- name: install git
  apt: 
    name: 
      - git 
      - python3
      - python3-pip
    update_cache: yes
    cache_valid_time: 3600

- name: Install docker package
  pip:
    name: 
      - docker
      - docker-compose
    state: present

# Monitoring
    
## node exporter

- name: clone private git repository
  git:
    repo: https://git:{{ git_token }}@git.front.kjuulh.io/kjuulh/node-exporter-local.git
    dest: ~/git/git.front.kjuulh.io/kjuulh/node-exporter-local
    version: main
    force: yes

- name: ensure docker compose file exists
  stat:
    path: ~/git/git.front.kjuulh.io/kjuulh/node-exporter-local/docker-compose.yml
  register: compose_file_stat

- name: run docker compose
  docker_compose:
    project_src: ~/git/git.front.kjuulh.io/kjuulh/node-exporter-local/
  when: compose_file_stat.stat.exists

## container exporter

- name: clone private git repository
  git:
    repo: https://git:{{ git_token }}@git.front.kjuulh.io/kjuulh/container-exporter-local.git
    dest: ~/git/git.front.kjuulh.io/kjuulh/container-exporter-local
    version: main
    force: yes

- name: ensure docker compose file exists
  stat:
    path: ~/git/git.front.kjuulh.io/kjuulh/container-exporter-local/docker-compose.yml
  register: compose_file_stat

- name: run docker compose
  docker_compose:
    project_src: ~/git/git.front.kjuulh.io/kjuulh/container-exporter-local/
  when: compose_file_stat.stat.exists