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---
- name: Deploy node_exporter
hosts: all
become: true
vars:
node_exporter_user: node_exporter
node_exporter_group: node_exporter
node_exporter_port: 9100
org: prometheus
repo: node_exporter
filename: node_exporter-{{ version }}.linux-amd64
project_url: https://github.com/{{ org }}/{{ repo }}/releases/download/v{{ version }}
tasks:
- name: Download {{ filename }}
ansible.builtin.get_url:
url: '{{ project_url }}/{{ filename }}.tar.gz'
dest: /tmp/{{ filename }}.tar.gz
mode: '0440'
tags:
- download
- name: Unarchive {{ filename }}
ansible.builtin.unarchive:
src: /tmp/{{ filename }}.tar.gz
dest: /tmp/
remote_src: true
tags:
- extract
- name: Create system group for user account {{ node_exporter_group }}
ansible.builtin.group:
name: "{{ node_exporter_group }}"
system: true
state: present
tags:
- configuration
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- name: Create system user account {{ node_exporter_user }}
ansible.builtin.user:
name: "{{ node_exporter_user }}"
comment: Prometheus node_exporter system account
group: "{{ node_exporter_group }}"
system: true
home: /var/lib/node_exporter
create_home: false
shell: /sbin/nologin
state: present
tags:
- configuration
- name: Copy node_exporter binary to /usr/local/bin
ansible.builtin.copy:
src: /tmp/{{ filename }}/node_exporter
dest: /usr/local/bin/node_exporter
owner: root
group: root
mode: '0755'
remote_src: true
tags:
- configuration
- name: Copy systemd unit file
ansible.builtin.template:
src: node_exporter.service.j2
dest: /etc/systemd/system/node_exporter.service
owner: root
group: root
mode: '0644'
notify:
- Reload systemd unit files
- Restart node_exporter systemd service
tags:
- configuration
- name: Ensure systemd service is running
ansible.builtin.systemd_service:
name: node_exporter.service
state: started
enabled: true
tags:
- configuration
handlers:
- name: Reload systemd unit files
ansible.builtin.systemd:
daemon_reload: true
tags:
- configuration
- name: Restart node_exporter systemd service
ansible.builtin.systemd:
name: node_exporter.service
state: restarted
tags:
- configuration