oom_test.yaml

apiVersion: batch/v1
kind: CronJob
metadata:
   name: RecoverOOM-test-cron
   namespace: RecoverOOM
spec:
  schedule: "*/1 * * * *"
  jobTemplate:
    spec:
      activeDeadlineSeconds: 60
      template:
        metadata:
          labels:
            purpose: demonstrate-oom
        spec: 
          restartPolicy: Never
          containers:
          - name: RecoverOOM-test
            image: ubuntu
            command:
              - bash
              - -c
            args:
              - |
                echo PID=$$
                for i in {0..9}
                do
                    eval a$i'=$(head --bytes 5000000 /dev/zero |cat -v)'
                    echo $((i++));
                done
            resources:
              requests:
                memory: 25Mi
                cpu: 1
              limits:
                memory: 25Mi
                cpu: 1
          tolerations:
            - effect: NoSchedule
              key: zeroScale
              operator: Equal
          nodeSelector:
            node.kubernetes.io/instance-type: n1-highmem-2