ffdo-ansible/roles/service-node_exporter/tasks/main.yml

---
# tasks file for node_exporter

- name: Download and unpack node_exporter
  unarchive:
    src: "{{ node_exporter_download_url }}"
    dest: /tmp
    remote_src: True

- name: Copy node_exporter to /usr/local/bin
  copy:
    remote_src: True
    src: "/tmp/node_exporter-{{ node_exporter_version }}.linux-{{ node_exporter_arch }}/node_exporter"
    dest: /usr/local/bin
    mode: 0744
  notify: Restart node_exporter

- name: Ensure systemd service is up to date
  register: node_exporter_systemd
  template:
    src: node_exporter.service.j2
    dest: /etc/systemd/system/node_exporter.service
  notify: Restart node_exporter

- name: Reload systemd
  when: node_exporter_systemd|changed
  shell: systemctl daemon-reload

- name: Ensure node_exporter is running and enabled
  service:
    name: node_exporter
    state: running
    enabled: yes

- name: Ensure node_exporter nginx config is up to date
  template:
    src: node_exporter_nginx.j2
    dest: /etc/nginx/sites-available/node_exporter.conf
  notify: Reload nginx

- stat:
    path: "/var/lib/acme/live/{{ ansible_fqdn }}/privkey"
  become: yes
  register: gogs_key_file_stat

- name: Let acmetool generate a key and a certificate
  become: yes
  when: not gogs_key_file_stat.stat.exists
  shell: /usr/bin/acmetool want --batch {{ ansible_fqdn }}
  notify: Restart nginx

- name: Ensure unsecure node_exporter configuration for nginx is enabled
  become: yes
  file: 
    state: link
    dest: /etc/nginx/sites-enabled/node_exporter.conf
    src: /etc/nginx/sites-available/node_exporter.conf 
  notify: Reload nginx