apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  creationTimestamp: 2020-09-21T16:30:42Z
  generation: 1
  labels:
    prometheus: application-monitoring
    role: alert-rules
  name: apicast-custom
  namespace: eloy-prom
spec:
  groups:
  - name: eloy-prom/apicast-custom.rules
    rules:
    - alert: ApicastWorkerRestart
      expr: changes(worker_process{}[5m]) > 0
      for: 5m
      labels:
        severity: warning
      annotations:
        summary: "A worker process in Nginx has been started"
        description: "A new thread has been started that means that maybe any worker process died because of any memory limit. Please investigate the memory pressure on pod (instance {{ $labels.instance }})"

oc exec -ti APICAST-POD -- kill -9 $(ps -axu | grep worker | grep -v grep | awk '{print $2}')