监控ssl证书到期时间

[root@iZbp1a16m3y5y71tdh7isyZ config]# cat prometheus.yml

····  
  - job_name: 'blackbox_http_2xx'
      scrape_interval: 30s
      metrics_path: /probe
      params:
        module: [http_2xx]
      static_configs:
        - targets:
          - https://xxxxxxxxxxxx
      relabel_configs:
        - source_labels: [__address__]
          target_label: __param_target
        - source_labels: [__param_target]
          target_label: instance
        - target_label: __address__
          replacement: blackbox-exporter:9115

[root@iZbp1a16m3y5y71tdh7isyZ rules]# cat blackbox_rules.yaml

groups:
- name: ssl_expiry
  rules:
  - alert: Ssl Cert Will Expire in 30 days
    expr: probe_ssl_earliest_cert_expiry - time() < 86400 * 30
    for: 5m
    labels:
      severity: warning
    annotations:
      summary: "SSL certificate will expire soon on (instance {{ $labels.instance }})"
      description: "https 证书还剩 30 days\n  VALUE = {{ $value }}\n  LABELS: {{ $labels }}"