Prometheus
From wikinotes
A system monitoring tool.
Metrics are polled/persisted over REST,
Documentation
home https://prometheus.io/
Tutorials
overview https://sbcode.net/prometheus/
Locations
http://${IP_ADDR}:9090
web-ui http://${IP_ADDR}:9090/targets
web-gui (health of queried metrics) ${PREFIX}/etc/prometheus.yml
main configuration
Ports
9090
default web-ui
Quickstart
- prometheus polls HTTP endpoints for collected metrics
- these endpoints are called exporters, and they are generated/exposed using clients
- you can configure rules to persist data, or emit alerts when a metric fails
xdg-open localhost:9090 # prometheus-ui promtool check rules /path/to/example.rules.yml # syntax-check rules
Notes
Setup
prometheus install prometheus exporters prometheus alerters Configuration
prometheus configuration prometheus rules Usage
prometheus web ui prometheus http api prometheus promql
Integrations
Dashboards
prometheus grafana metric/graph dashboards prometheus alerta alerts dashboard Notifications
prometheus pagerduty android/ios push notifications on alerts