swesterveld / ansible-node-exporter

Provision basic metrics exporter for prometheus monitoring tool

Ansible Role: node exporter

Description

Deploy prometheus node exporter using ansible.

Requirements

• Ansible > 2.2
• go-lang installed on deployer machine (same one where ansible is installed)

Role Variables

All variables which can be overridden are stored in defaults/main.yml file as well as in table below.

Name	Default Value	Description
node_exporter_version	0.15.2	Node exporter package version
node_exporter_web_listen_address	"0.0.0.0:9100"	Address on which node exporter will listen
node_exporter_enabled_collectors	[ conntrack, diskstats, entropy, filefd, filesystem, hwmon, loadavg, mdadm, meminfo, netdev, netstat, stat, textfile, time, vmstat, systemd, ntp ]	List of enabled collectors
node_exporter_disabled_collectors	[ logind ]	List of disabled collectors

Example

Playbook

Use it in a playbook as follows:

- hosts: all
  become: yes
  roles:
    - cloudalchemy.node-exporter

Demo site

We provide demo site for full monitoring solution based on prometheus and grafana. Repository with code and links to running instances is available on github and site is hosted on DigitalOcean.

Local Testing

The preferred way of locally testing the role is to use Docker and molecule (v1.25). You will have to install Docker on your system. See Get started for a Docker package suitable to for your system. All packages you need to can be specified in one line:

pip install ansible ansible-lint>=3.4.15 molecule==1.25.0 docker testinfra>=1.7.0

This should be similiar to one listed in .travis.yml file in install section. After installing test suit you can run test by running

molecule test

For more information about molecule go to their docs.

Contributing

See contributor guideline.

License

This project is licensed under MIT License. See LICENSE for more details.