Kubernetes: Pre-pull images into node

prepull.yaml

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: prepull
  annotations:
    source: "https://gist.github.com/itaysk/7bc3e56d69c4d72a549286d98fd557dd"
spec:
  selector:
    matchLabels:
      name: prepull 
  template:
    metadata:
      labels:
        name: prepull 
    spec:
      initContainers:
      - name: prepull 
        image: docker
        command:
        - docker
        - pull
        - # image name to pull
        volumeMounts:
        - name: docker
          mountPath: /var/run
      volumes:
      - name: docker
        hostPath:
          path: /var/run
      containers:
      - name: pause
        image: gcr.io/google_containers/pause