---
- name: Install and configure Node Explorer
  hosts: grafana
  become: yes
  gather_facts: no
  vars:
    user_home: "/home/smauro"
    tmp_dir: "/home/smauro/tmp"
    node_exporter_version: "1.9.0"
    node_exporter_url: "https://github.com/prometheus/node_exporter/releases/download/v{{ node_exporter_version }}/node_exporter-{{ node_exporter_version }}.linux-amd64.tar.gz"
    extract_dir: "/home/smauro/tmp/node_exporter-{{ node_exporter_version }}.linux-amd64"

  tasks:
    - name: Créer le répertoire tmp s'il n'existe pas
      file:
        path: "{{ tmp_dir }}"
        state: directory
        owner: smauro
        group: smauro
        mode: '0755'

    - name: Télécharger Node Exporter
      get_url:
        url: "{{ node_exporter_url }}"
        dest: "{{ tmp_dir }}/node_exporter-{{ node_exporter_version }}.linux-amd64.tar.gz"
        mode: '0644'

    - name: Extraire Node Exporter
      ansible.builtin.unarchive:
        src: "{{ tmp_dir }}/node_exporter-{{ node_exporter_version }}.linux-amd64.tar.gz"
        dest: "{{ tmp_dir }}"
        remote_src: yes

    - name: Déplacer Node Exporter vers /usr/local/bin/
      command: mv {{ extract_dir }}/node_exporter /usr/local/bin/
      args:
        creates: /usr/local/bin/node_exporter

    - name: Créer l'utilisateur prometheus
      user:
        name: prometheus
        shell: /usr/sbin/nologin
        system: yes
        create_home: no
        state: present

    - name: Créer le service systemd pour Node Exporter
      copy:
        dest: /etc/systemd/system/node_exporter.service
        content: |
          [Unit]
          Description=Prometheus Node Exporter
          Wants=network-online.target
          After=network-online.target

          [Service]
          User=prometheus
          Group=prometheus
          Type=simple
          ExecStart=/usr/local/bin/node_exporter

          [Install]
          WantedBy=multi-user.target
        mode: '0644'

    - name: Recharger systemd
      systemd:
        daemon_reload: yes

    - name: Activer et démarrer Node Exporter
      systemd:
        name: node_exporter
        enabled: yes
        state: started