apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: prometheus-polardbx-rules
  namespace: {{ .Release.Namespace }}
  labels:
    prometheus: k8s
    role: alert-rules
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/managed-by: {{ .Release.Service }}
spec:
  groups:
    - name: polardbx.rules
      interval: 30s
      rules:
        - expr: |
            sum by (cluster, namespace, pod, container, polardbx_name, polardbx_role, xcluster_role, xcluster_name) (
                rate(
                (container_cpu_usage_seconds_total{job="kubelet", metrics_path="/metrics/cadvisor", image!="", container=~"server|engine"}
                * on (pod) group_left(polardbx_name, polardbx_role, xcluster_role, xcluster_name)
                topk by (pod) (1, (abs((polardbx_up or polardbx_cdc_up or mysql_up{polardbx_name!=""}) - 0.5) * 2)))[2m:]
                )
            ) * on (cluster, namespace, pod) group_left(node) topk by (cluster, namespace, pod) (
                1, max by(cluster, namespace, pod, node) (kube_pod_info{node!=""})
            )
          record: polardbx_container_cpu_usage_seconds_total:sum_rate