apiVersion: apps/v1
kind: Deployment
metadata:
  name: prepull-docker
  namespace: kube-system
  labels:
    k8s-app: prepull-docker
spec:
  replicas: 2
  selector:
    matchLabels:
      name: prepull-docker
  template:
    metadata:
      labels:
        name: prepull-docker
    spec:
      #nodeSelector:
      #  node.kubernetes.io/instance-type: g4dn.2xlarge
      initContainers:
      - name: prepull-docker
        image: docker
        command: ["docker"]
        # The image to pre-pull is specified in the docker pull command below
        args: ["pull", "terencewestphal/htop:latest"]
        volumeMounts:
        - name: docker
          mountPath: /var/run
      containers:
      - name: pause
        image: gcr.io/google_containers/pause
        #resources:
        #  limits:
        #    memory: 200Mi
        #    nvidia.com/gpu: 1
        #  requests:
        #    cpu: 100m
        #    memory: 200Mi
        #    nvidia.com/gpu: 1
      terminationGracePeriodSeconds: 10
      volumes:
      - name: docker
        hostPath:
          path: /var/run