tasks/main.yml

---
# node_exporter tasks/main.yml
#
# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
# SPDX-License-Identifier: Apache-2.0

- name: include OS-specific vars
  include_vars: "{{ ansible_os_family }}.yml"

- name: include OS-specific tasks
  include_tasks: "{{ ansible_os_family }}.yml"

- name: Create group for Node Exporter
  group:
    name: "{{ node_exporter_name }}"

- name: Create user for Node Exporter
  user:
    name: "{{ node_exporter_name }}"
    group: "{{ node_exporter_group }}"
    comment: "{{ node_exporter_comment }}"
    shell: "{{ node_exporter_shell }}"
    system: true
    password_lock: true

- name: Create Node Exporter dist dir
  file:
    path: "{{ node_exporter_dist_dir }}"
    state: directory
    owner: "root"
    group: "root"
    mode: "0755"

- name: Download Node Exporter distro .tgz file
  get_url:
    url: "https://github.com/prometheus/node_exporter/releases/download/\
      v{{ node_exporter_ver }}/node_exporter-{{ node_exporter_ver }}.linux-amd64.tar.gz"
    dest: "{{ node_exporter_dist_dir }}/node_exporter-{{ node_exporter_ver }}.tar.gz"
    owner: "root"
    group: "root"
    mode: "0644"
    checksum: "{{ node_exporter_checksum }}"

- name: Unarchive Node Exporter distribution
  unarchive:
    remote_src: true
    src: "{{ node_exporter_dist_dir }}/node_exporter-{{ node_exporter_ver }}.tar.gz"
    dest: "{{ node_exporter_dist_dir }}"
    owner: "root"
    group: "root"
    creates: "{{ node_exporter_dist_dir }}/node_exporter-{{ node_exporter_ver }}.linux-amd64"

- name: Link Node Exporter distro to working dir
  file:
    state: "link"
    src: "{{ node_exporter_dist_dir }}/node_exporter-{{ node_exporter_ver }}.linux-amd64"
    dest: "{{ node_exporter_working_dir }}"
  notify:
    - "start-node-exporter"