Janik von Rotz
0acb6d11d2
- Moved all role kind classifications from top-level to `galaxy_info.kind` for standardized Ansible Galaxy compatibility - Updated `bin/visualize-dependencies` script to support both legacy and new `galaxy_info.kind` formats - Standardized metadata structure across all 108 roles while maintaining backward compatibility - This change enables better tooling integration and aligns with Ansible Galaxy best practices
kind
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Node Exporter role
Deploy node-exporter container and install custom metric script.
Usage
Configure the role.
# https://hub.docker.com/r/prom/node-exporter
node_exporter_image: prom/node-exporter:v1.0.1
node_exporter_hostname: node01
node_exporter_description: Host metrics for server1 # default: "Node Exporter {{ inventory_hostname_short }}"
node_exporter_nginx_enabled: false # default: true
node_exporter_nginx_data_dir: /usr/share/nginx/proxies # default: "{{ nginx_data_dir }}/proxies"
node_exporter_requires_package: python2-passlib # default: python3-passlib
node_exporter_basic_auth_username: exporter # default: node-exporter
node_exporter_basic_auth_password: # default: "{{ vault_node_exporter_basic_auth_password }}"
Ensure the nginx proxy includes the node-exporter config:
nginx_proxies:
- src_hostname: server.example.com
tls: true
exporter: node
options: |
include /etc/nginx/conf.d/proxies/node-exporter.nginx;
And include it in your playbook.
- hosts: node_exporter
roles:
- role: node_exporter
The following tags are available:
- node_exporter
- node_exporter_nginx_config
Docs
Host filesystem mount
By default to node-exporter mounts the host filesystem to /hostfs.
Request metrics manually
Show the metrics output for a selected host with this command:
host=server1
task run $host -i inventories/setup -m shell -a "curl -s 'https://node-exporter:{{ hostvars[inventory_hostname]['vault_node_exporter_basic_auth_password'] }}@{{ hostvars[inventory_hostname]['ansible_host'] }}/node-exporter/metrics'"
Show metrics locally
Use this command to show the metrics of the Node Exporter container:
curl http://node01:9100/metrics