tildes/ansible/roles/prometheus_node_exporter/tasks/main.yml

---
- name: Create prometheus user and group
  import_tasks: prometheus_user.yml

- name: Download node_exporter from GitHub (x86_64 / amd64)
  when: ansible_facts['architecture'] == 'x86_64'
  get_url:
    dest: /tmp/prometheus_node_exporter.tar.gz
    url: https://github.com/prometheus/node_exporter/releases/download/v0.13.0/node_exporter-0.13.0.linux-amd64.tar.gz
    checksum: sha256:2de5d1e51330c41588ed4c88bc531a3d2dccf6b4d7b99d5782d95cff27a3c049

- name: Download node_exporter from GitHub (aarch64 / arm64)
  when: ansible_facts['architecture'] == 'aarch64'
  get_url:
    dest: /tmp/prometheus_node_exporter.tar.gz
    url: https://github.com/prometheus/node_exporter/releases/download/v0.13.0/node_exporter-0.13.0.linux-arm64.tar.gz
    checksum: sha256:a7f9db18b590e068ada68d3e1edd1bd0a9db43e3ee8f69517a49768ec8988a4c

- name: Create node_exporter directory
  file:
    path: /opt/prometheus_node_exporter
    state: directory
    owner: prometheus
    group: prometheus
    mode: 0755

- name: Extract node_exporter
  unarchive:
    remote_src: true
    src: /tmp/prometheus_node_exporter.tar.gz
    dest: /opt/prometheus_node_exporter
    owner: prometheus
    group: prometheus
    extra_opts:
      - --strip-components=1
    creates: /opt/prometheus_node_exporter/node_exporter

- name: Create node_exporter service file
  copy:
    src: prometheus_node_exporter.service
    dest: /etc/systemd/system/prometheus_node_exporter.service
    owner: root
    group: root
    mode: 0644

- name: Start and enable node_exporter service
  systemd_service:
    name: prometheus_node_exporter
    state: started
    enabled: true