---
- hosts: all
  remote_user: root

  tasks:
  - name: Add prometheus repo
    yum_repository:
      name: prometheus
      description: prometheus YUM repo
      file: prometheus
      repo_gpgcheck: yes
      baseurl: https://packagecloud.io/prometheus-rpm/release/el/$releasever/$basearch
      gpgkey: https://packagecloud.io/prometheus-rpm/release/gpgkey https://raw.githubusercontent.com/lest/prometheus-rpm/master/RPM-GPG-KEY-prometheus-rpm
      gpgcheck: yes
      metadata_expire: '300'
      enabled: yes

  - name: install 'node_exporter'
    yum:
      name: [ 'node_exporter' ]
      state: present

  - name: start/restart and enable node_exporter
    service:
        name: node_exporter
        state: restarted
        enabled: yes