---
- name: Create node_exporter user
  user:
    name: node_exporter
    shell: /bin/false
    system: yes

#- name: Download node_exporter
#  get_url:
#    url: "https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz"
#    dest: "/tmp/node_exporter.tar.gz"

- name: Download node_exporter (Robust Method)
  block:
    - name: Try downloading with get_url
      get_url:
        url: "https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz"
        dest: "/tmp/node_exporter.tar.gz"
  rescue:
    - name: Install curl for fallback
      apt:
        name: curl
        state: present

    - name: Fallback downloading with curl
      command: >
        curl -L -o /tmp/node_exporter.tar.gz https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz
      args:
        creates: /tmp/node_exporter.tar.gz

- name: Unarchive node_exporter
  unarchive:
    src: "/tmp/node_exporter.tar.gz"
    dest: "/tmp"
    remote_src: yes

- name: Install node_exporter binary
  copy:
    src: "/tmp/node_exporter-1.7.0.linux-amd64/node_exporter"
    dest: "/usr/local/bin/node_exporter"
    mode: '0755'
    remote_src: yes
  notify: Restart node_exporter

- name: Create systemd service file
  template:
    src: node_exporter.service.j2
    dest: /etc/systemd/system/node_exporter.service
  notify: Restart node_exporter

- name: Enable and start node_exporter
  systemd:
    name: node_exporter
    state: started
    enabled: yes