groups:
- name: ./prometheus.rules
  rules:
  - alert: FailedReload
    expr: prometheus_config_last_reload_successful == 0
    for: 10m
    labels:
      severity: warning
    annotations:
      description: Reloading Prometheus' configuration has failed for {{ $labels.namespace
        }}/{{ $labels.pod}}.
      summary: Prometheus configuration reload has failed