hosts, listeners, err := getHosts(n)
	if err != nil {
		return nil, err
	}
	dialer := &net.Dialer{
		Timeout: 5 * time.Second,
	}
	var res TestGrid
	res.Hosts = hosts
	ready := make(chan struct{})
	ctx, cancel := context.WithCancel(context.Background())
	res.cancel = cancel
	for i, host := range hosts {
		manager, err := NewManager(ctx, ManagerOptions{
			Dialer: ConnectWS(dialer.DialContext,

	deadline := 10 * time.Second // Default deadline is 10secs for callhome
	objectAPI := newObjectLayerFn()
	if objectAPI == nil {
		internalLogIf(ctx, errors.New("Callhome: object layer not ready"))
		return
	}

	healthCtx, healthCancel := context.WithTimeout(ctx, deadline)
	defer healthCancel()

	healthInfoCh := make(chan madmin.HealthInfo)

	query := url.Values{}

  expose:
    - "9000"
    - "9001"
  # environment:
    # MINIO_ROOT_USER: minioadmin
    # MINIO_ROOT_PASSWORD: minioadmin
  healthcheck:
    test: ["CMD", "mc", "ready", "local"]
    interval: 5s
    timeout: 5s
    retries: 5

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:

					if err != nil {
						write([]byte{1})
						write([]byte(err.Error()))
					} else {
						write([]byte{0})
					}
					return
				default:
				}

				// Response not ready, write a filler byte.
				write([]byte{32})
				if canWrite {
					xhttp.Flush(w)
				}
			case err := <-doneCh:
				if err != nil {
					write([]byte{1})
					write([]byte(err.Error()))
				} else {

    ) {
    init {
        id("Promotion_NightlyDocumentation")
        name = "Nightly Documentation"
        description =
            "Promotes the latest successful documentation changes on '${branch.branchName}' from Ready for Nightly as a new nightly documentation snapshot"

        triggers {
            branch.determineNightlyPromotionTriggerHour()?.let { triggerHour ->
                schedule {

    ) {
    init {
        id(NIGHTLY_SNAPSHOT_BUILD_ID)
        name = "Nightly Snapshot"
        description =
            "Promotes the latest successful changes on '${branch.branchName}' from Ready for Nightly as a new nightly snapshot"

        triggers {
            val triggerHour = branch.determineNightlyPromotionTriggerHour() ?: return@triggers

	MinIOTargetReplicationReady = "X-Minio-Replication-Ready"
	// Header asking if cluster can receive delete marker replication request now.
	MinIOCheckDMReplicationReady = "X-Minio-Check-Replication-Ready"
	// Header indiicates last tag update time on source
	MinIOSourceTaggingTimestamp = "X-Minio-Source-Replication-Tagging-Timestamp"

            listOf(
                "SanityCheck",
                "Nightly Snapshot",
                "Nightly Snapshot (from QuickFeedback)",
                "Nightly Snapshot (from QuickFeedback) - Check Ready",
                "Nightly Snapshot (from QuickFeedback) - Upload",
                "Nightly Snapshot (from QuickFeedback) - Promote",
                "Publish Branch Snapshot (from Quick Feedback)",

                if (projectsToEnableNullaway.isNotEmpty()) {
                    println("${toEnableCount} ${projectS(toEnableCount)} with checked dependencies are ready to be worked on:")
                    projectsToEnableNullaway.sorted().forEach {
                        println("  * $it")
                    }
                } else if (projectsWithUncheckedDeps.isNotEmpty()) {

    PULL_REQUEST_FEEDBACK("Pull Request Feedback", "Run various functional tests", "PullRequestFeedback"),
    READY_FOR_NIGHTLY(
        "Ready for Nightly",
        "Rerun tests in different environments / 3rd party components",
        "ReadyforNightly",
    ),
    READY_FOR_RELEASE("Ready for Release", "Once a day: Rerun tests in more environments", "ReadyforRelease"),
    WEEKLY_VALIDATION(
        "Weekly Validation",