apiVersion: apps/v1
kind: Deployment
metadata:
  name: set-priority
  labels:
    k8s-app: set-priority
spec:
  selector:
    matchLabels:
      name: set-priority
  template:
    metadata:
      labels:
        name: set-priority
    spec:
      containers:
      - name: set-priority
        image: busybox
        command: [ "sh", "-c", "while /bin/true ; do nice -n -20 echo ; sleep 5; done" ]