cozystack/packages/system/monitoring/alerts/general.yaml

apiVersion: operator.victoriametrics.com/v1beta1
kind: VMRule
metadata:
  name: alerts-general
  namespace: cozy-monitoring
spec:
  groups:
  - name: coreos.general
    labels:
      alertname: foo
    rules:
    - alert: DeadMansSwitch
      expr: vector(1)
      labels:
        severity_level: "4"
      annotations:
        description: This is a DeadMansSwitch meant to ensure that the entire Alerting
          pipeline is functional.
        summary: Alerting DeadMansSwitch
    - record: fd_utilization
      expr: process_open_fds / process_max_fds
    - alert: FdExhaustionClose
      expr: max(predict_linear(fd_utilization{pod!=""}[1h], 3600 * 4)) BY (job, namespace, pod) > 1
      for: 10m
      labels:
        severity_level: "4"
      annotations:
        description: '{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} instance
          will exhaust in file/socket descriptors within the next 4 hours'
        summary: file descriptors soon exhausted
    - alert: FdExhaustionClose
      expr: max(predict_linear(fd_utilization{pod=""}[1h], 3600 * 4)) BY (job, instance) > 1
      for: 10m
      labels:
        severity_level: "4"
      annotations:
        description: '{{ $labels.job }}: {{ $labels.instance }} instance
          will exhaust in file/socket descriptors within the next 4 hours'
        summary: file descriptors soon exhausted
    - alert: FdExhaustionClose
      expr: max(predict_linear(fd_utilization{pod!=""}[10m], 3600)) BY (job, namespace, pod) > 1
      for: 10m
      labels:
        severity_level: "3"
      annotations:
        description: '{{ $labels.job }}: {{ $labels.namespace }}/{{ $labels.pod }} instance
          will exhaust in file/socket descriptors within the next hour'
        summary: file descriptors soon exhausted
    - alert: FdExhaustionClose
      expr: max(predict_linear(fd_utilization{pod=""}[10m], 3600)) BY (job, instance) > 1
      for: 10m
      labels:
        severity_level: "3"
      annotations:
        description: '{{ $labels.job }}: {{ $labels.instance }} instance
          will exhaust in file/socket descriptors within the next hour'
        summary: file descriptors soon exhausted