Ansible Role: prometheus-node-exporter

An Ansible role that installs Prometheus Node Exporter on Ubuntu|Debian|Redhat-based machines with systemd|Upstart|sysvinit.

Requirements

All needed packages will be installed with this role.

Role Variables

Variable	Type	Choices	Default	Comment
prometheus_node_exporter_version	string	See node_exporter releases	0.18.1	Version of node_exporter that will be installed. Minimal supported version: 0.15
prometheus_node_exporter_release_name	string		node_exporter-{{ prometheus_node_exporter_version }}.linux-amd64	Name of the binary that will be downloaed from the release page
prometheus_node_exporter_enabled_collectors	list	List of flags	[]	List of collectors that are disabled by default to enable
prometheus_node_exporter_disabled_collectors	list	List of flags	[]	List of collectors that are enabled by default to disable
prometheus_node_exporter_config_flags	dict			Dict of key, value options to add to the start command line
prometheus_node_exporter_url	string		not defined	Custom URL to download node_exporter if you can't access to github

Dependencies

• UnderGreen.prometheus-exporters-common

Example Playbook

- hosts: node-exporters
  roles:
    - role: undergreen.prometheus-node-exporter
      prometheus_node_exporter_version: 0.18.1
      prometheus_node_exporter_enabled_collectors:
        - conntrack
        - cpu
        - diskstats
        - entropy
        - filefd
        - filesystem
        - loadavg
        - mdadm
        - meminfo
        - netdev
        - netstat
        - stat
        - textfile
        - time
        - vmstat
      prometheus_node_exporter_config_flags:
        'web.listen-address': '0.0.0.0:9100'
        'log.level': 'info'

Note:

Due to prometheus/node_exporter#640 and prometheus/node_exporter#639 changes, this role can only support the minimum version 0.15 of node_exporter.

License

GPLv2