groups:

- name: BlackboxExporter

  rules:

    - alert: BlackboxProbeFailed
      expr: 'probe_success == 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Blackbox probe failed (instance {{ $labels.instance }})
        message: Blackbox probe failed for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "Probe failed\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxConfigurationReloadFailure
      expr: 'blackbox_exporter_config_last_reload_successful != 1'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Blackbox configuration reload failure (instance {{ $labels.instance }})
        message: Blackbox configuration reload failure (instance {{ $labels.instance }})
        description: "Blackbox configuration reload failure\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxSlowProbe
      expr: 'avg_over_time(probe_duration_seconds[1m]) > 1'
      for: 10m
      labels:
        severity: warning
      annotations:
        summary: Blackbox slow probe (instance {{ $labels.instance }})
        message: Blackbox slow probe for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "Blackbox probe took more than 1s to complete\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxProbeHttpFailure
      expr: 'probe_http_status_code <= 199 OR probe_http_status_code >= 400'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Blackbox probe HTTP failure (instance {{ $labels.instance }})
        message: Blackbox probe HTTP failure for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "HTTP status code is not 200-399\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxSslCertificateWillExpireSoon
      expr: '3 <= round((last_over_time(probe_ssl_earliest_cert_expiry[10m]) - time()) / 86400, 0.1) < 20'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance }})
        message: Blackbox SSL certificate will expire soon for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "SSL certificate expires in less than 20 days\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxSslCertificateWillExpireSoon
      expr: '0 <= round((last_over_time(probe_ssl_earliest_cert_expiry[10m]) - time()) / 86400, 0.1) < 3'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Blackbox SSL certificate will expire soon (instance {{ $labels.instance }})
        message: Blackbox SSL certificate will expire soon for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "SSL certificate expires in less than 3 days\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxSslCertificateExpired
      expr: 'round((last_over_time(probe_ssl_earliest_cert_expiry[10m]) - time()) / 86400, 0.1) < 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Blackbox SSL certificate expired (instance {{ $labels.instance }})
        message: Blackbox SSL certificate expired for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "SSL certificate has expired already\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxProbeSlowHttp
      expr: 'avg_over_time(probe_http_duration_seconds[1m]) > 1'
      for: 1m
      labels:
        severity: warning
      annotations:
        summary: Blackbox probe slow HTTP (instance {{ $labels.instance }})
        message: Blackbox probe slow HTTP for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "HTTP request took more than 1s\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

    - alert: BlackboxProbeSlowPing
      expr: 'avg_over_time(probe_icmp_duration_seconds[1m]) > 1'
      for: 1m
      labels:
        severity: warning
      annotations:
        summary: Blackbox probe slow ping (instance {{ $labels.instance }})
        message: Blackbox probe slow ping for {{ $labels.target }} (instance {{ $labels.instance }})
        description: "Blackbox ping took more than 1s\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"