loom-prometheus
Installation
SKILL.md
Prometheus Monitoring and Alerting
Pull-based, multi-dimensional time-series monitoring with PromQL. Scope: PromQL, scrape/SD config, recording & alerting rules, instrumentation, Alertmanager. Dashboards/panels → loom-grafana; log queries → loom-logging-observability.
Overview
| Component | Role |
|---|---|
| Prometheus server | Scrapes targets, stores TSDB locally, evaluates rules |
| Alertmanager | Dedup, group, route, inhibit, silence, notify |
| Exporters | Translate third-party systems to the exposition format (node, blackbox, ...) |
| Client libraries | In-process instrumentation (Go, Python, Rust, Java, ...) |
| Pushgateway | Ephemeral batch jobs push metrics — see gotcha; avoid for services |
| Operator / Thanos·Mimir·Cortex | K8s CRD deploy / long-term + global-view remote storage |
Metric types. up is the synthetic per-target health series (1 = scrape ok).