- hosts: all:!windows:!monitoring


  vars:
    node_exporter_version: 1.11.1
    interface_var_name: "ansible_wt0"
    interface_var_ipv4: "{{ vars[interface_var_name].ipv4.address }}"
  tasks:
    - name: download node exporter
      get_url:
        url: https://github.com/prometheus/node_exporter/releases/download/v{{ node_exporter_version }}/node_exporter-{{ node_exporter_version }}.linux-amd64.tar.gz
        dest: /tmp
    - name: unarchive node exporter
      unarchive:
        remote_src: yes
        src: /tmp/node_exporter-{{ node_exporter_version }}.linux-amd64.tar.gz
        dest: /tmp
    - name: move node exporter to /usr/local/bin
      copy:
        src: /tmp/node_exporter-{{ node_exporter_version }}.linux-amd64/node_exporter
        dest: /usr/local/bin/node_exporter
        remote_src: yes
        owner: root
        group: root
        mode: 0755
    - name: install unit file to systemd
      template:
        src: templates/node_exporter.service.j2
        dest: /etc/systemd/system/node_exporter.service
        owner: root
        group: root
        mode: 0600
    - name: create config directory
      file:
        path: /etc/node_exporter
        state: directory
        owner: root
        group: root
        mode: 0700
    - name: copy certificates
      copy:
        src: files/node_exporter.crt
        dest: /etc/node_exporter/cert.crt
        owner: root
        group: root
        mode: 0600
    - name: copy certificate key
      copy:
        src: files/node_exporter.key
        dest: /etc/node_exporter/cert.key
        owner: root
        group: root
        mode: 0600
    - name: copy node exporter config
      template:
        src: files/node_exporter.yml
        dest: /etc/node_exporter/config.yml
        owner: root
        group: root
        mode: 0600
    - name: configure systemd to use service
      systemd:
        daemon_reload: yes
        enabled: yes
        state: started
        name: node_exporter.service