tracker.ObservedPodOnWatch(podInitializing, frozenTime)

		// image pulling started at 10s and the last one finished at 30s
		// first image starts pulling at 10s
		fakeClock.SetTime(frozenTime.Add(time.Second * 10))
		tracker.RecordImageStartedPulling(podInitializing.UID)
		// second image starts pulling at 11s
		fakeClock.SetTime(frozenTime.Add(time.Second * 11))

	RecordImageFinishedPulling(podUID types.UID)
}

// imageManager provides the functionalities for image pulling.
type imageManager struct {
	recorder     record.EventRecorder
	imageService kubecontainer.ImageService
	backOff      *flowcontrol.Backoff
	// It will check the presence of the image, and report the 'image pulling', image pulled' events correspondingly.
	puller imagePuller

	podPullingTimeRecorder ImagePodPullingTimeRecorder

defaults:
  global:

    # ImagePullSecrets for control plane ServiceAccount, list of secrets in the same namespace
    # to use for pulling any images in pods that reference this ServiceAccount.
    # Must be set for any cluster configured with private docker registry.
    imagePullSecrets: []

    # Used to locate istiod.
    istioNamespace: istio-system

    externalIstiod: false
    remotePilotAddress: ""

	FailedToMakePodDataDirectories = "Failed"
	NetworkNotReady                = "NetworkNotReady"
)

// Image event reason list
const (
	PullingImage            = "Pulling"
	PulledImage             = "Pulled"
	FailedToPullImage       = "Failed"
	FailedToInspectImage    = "InspectFailed"
	ErrImageNeverPullPolicy = "ErrImageNeverPull"
	BackOffPullImage        = "BackOff"
)

global:

  # ImagePullSecrets for control plane ServiceAccount, list of secrets in the same namespace
  # to use for pulling any images in pods that reference this ServiceAccount.
  # Must be set for any cluster configured with private docker registry.
  imagePullSecrets: []

  # Used to locate istiod.
  istioNamespace: istio-system

  istiod:
    enableAnalysis: false

  configValidation: true
  externalIstiod: false

# ==============================================================================
if [[ "$TFCI_DOCKER_PULL_ENABLE" == 1 ]]; then
  # Simple retry logic for docker-pull errors. Sleeps if a pull fails.
  # Pulling an already-pulled container image will finish instantly, so
  # repeating the command costs nothing.
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 15
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 30

	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>

		"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,