groups:
  - name: node-exporter-rules
    rules:
  
    # CPU count
    - record: instance:node_cpus:count
      expr: count(node_cpu_seconds_total{mode="idle"}) without (cpu,mode)

  #взято отсюда
  # https://stackoverflow.com/questions/52480567/count-alerts-fired-by-prometheus
  - name: alerts
    rules:
    - record: ALERTS_FOR_STATE:firing
      expr: ALERTS_FOR_STATE and ignoring(alertstate) ALERTS{alertstate="firing"}