bases.Insert(args.Base)
				b.Args = append(b.Args, args)
			}
			builds = append(builds, b)
		}
	}

	// Warm up our base images while we are building everything. This isn't pulling them -- we actually
	// never pull them -- but it is pulling the config file from the remote registry.
	builder.WarmBase(ctx, a.Architectures, sets.SortedList(bases)...)

	// Build all dependencies
	makeStart := time.Now()

	ErrInvalidImageName = errors.New("InvalidImageName")
)

// ImageManager provides an interface to manage the lifecycle of images.
// Implementations of this interface are expected to deal with pulling (downloading),
// managing, and deleting container images.
// Implementations are expected to abstract the underlying runtimes.
// Implementations are expected to be thread safe.
type ImageManager interface {

		return err
	}

	if data.DryRun() {
		fmt.Println("[preflight] Would pull the required images (like 'kubeadm config images pull')")
		return nil
	}

	fmt.Println("[preflight] Pulling images required for setting up a Kubernetes cluster")
	fmt.Println("[preflight] This might take a minute or two, depending on the speed of your internet connection")

    InternalFutures. Most users will never need to use this artifact. Its
    classes are conceptually a part of Guava, but they're in this separate
    artifact so that Android libraries can use them without pulling in all of
    Guava (just as they can use ListenableFuture by depending on the
    listenablefuture artifact).
  </description>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-jar-plugin</artifactId>

       for the change (usually before you start working on it).  Trivial changes like typos do not
       require a JIRA issue. Your pull request should address just this issue, without
       pulling in other changes.
 - [ ] Each commit in the pull request should have a meaningful subject line and body.
 - [ ] Format the pull request title like `[MNG-XXX] SUMMARY`,

		"timeout per a HTTP request for pulling a Wasm module via http/https").Get()

	wasmHTTPRequestMaxRetries = env.Register("WASM_HTTP_REQUEST_MAX_RETRIES", wasm.DefaultHTTPRequestMaxRetries,
		"maximum number of HTTP/HTTPS request retries for pulling a Wasm module via http/https").Get()

	enableWDSEnv = env.Register("PEER_METADATA_DISCOVERY", false,

				newPodEvent(watch.Added, "podRecyclerSuccess", v1.PodPending, ""),
				newEvent(v1.EventTypeNormal, "Successfully assigned recycler-for-podRecyclerSuccess to 127.0.0.1"),
				newEvent(v1.EventTypeNormal, "Pulling image \"registry.k8s.io/busybox\""),
				newEvent(v1.EventTypeNormal, "Successfully pulled image \"registry.k8s.io/busybox\""),
				newEvent(v1.EventTypeNormal, "Created container with docker id 83d929aeac82"),

		initConfig.NodeRegistration.ImagePullPolicy = data.Cfg().Node.ImagePullPolicy
		initConfig.NodeRegistration.ImagePullSerial = data.Cfg().Node.ImagePullSerial

		if !data.DryRun() {
			fmt.Println("[preflight] Pulling images required for setting up a Kubernetes cluster")
			fmt.Println("[preflight] This might take a minute or two, depending on the speed of your internet connection")

	imageExistsFunc func(string) bool, pullImageFunc func(string) error) []error {

	var errs []error
	errChan := make(chan error, len(images))

	klog.V(1).Info("pulling all images in parallel")
	for _, img := range images {
		image := img
		go func() {
			if ifNotPresent {
				exists := imageExistsFunc(image)
				if exists {
					klog.V(1).Infof("image exists: %s", image)

	// ImagePullPolicy specifies the policy for image pulling during kubeadm "init" and "join" operations.
	// The value of this field must be one of "Always", "IfNotPresent" or "Never".
	// If this field is unset kubeadm will default it to "IfNotPresent", or pull the required images if not present on the host.
	ImagePullPolicy v1.PullPolicy `json:"imagePullPolicy,omitempty"`