# Плохо: одинаковый приоритет для всех проблем
- alert: DiskSpaceLow
  expr: node_filesystem_free_bytes / node_filesystem_size_bytes < 0.2
  labels:
    severity: warning

- alert: DatabaseDown
  expr: up{job="postgres"} == 0
  labels:
    severity: warning

- alert: CertificateExpiringSoon
  expr: ssl_certificate_days_remaining < 30
  labels:
    severity: warning