---
prometheus__scraping_prometheus:
  targets: "{{ groups.prom }}"
  address:
    port: 9090

prometheus__rules_prometheus:
  - alert: PrometheusTsdbCompactionFailed
    expr:
      increase(prometheus_tsdb_compactions_failed_total[1m]) > 0
    for: 0m
    labels:
      severity: critical
...