},
	})
	if err != nil {
		t.Fatal(err)
	}

	// Wait until nonce was updated, which represents an ACK/NACK has been received.
	retry.UntilSuccessOrFail(t, func() error {
		if proxy.ecdsLastNonce.Load() == n1.Load() {
			return errors.New("last process nonce has not been updated. no ecds ack/nack is received yet")
		}
		return nil
	}, retry.Timeout(time.Second), retry.Delay(time.Millisecond))

func (a *AdsTest) RequestResponseNack(t test.Failer, req *discovery.DiscoveryRequest) *discovery.DiscoveryResponse {
	t.Helper()
	if req == nil {
		req = &discovery.DiscoveryRequest{}
	}
	a.Request(t, req)
	resp := a.ExpectResponse(t)
	req.ResponseNonce = resp.Nonce
	req.ErrorDetail = &status.Status{Message: "Test request NACK"}
	a.Request(t, req)
	return resp
}

		Node:          req.Node,
		TypeUrl:       req.TypeUrl,
		ResponseNonce: req.ResponseNonce,
	})
	return resp
}

// RequestResponseNack does a full XDS exchange with an error: Send a request, get a response, and NACK the response
func (a *DeltaAdsTest) RequestResponseNack(req *discovery.DeltaDiscoveryRequest) *discovery.DeltaDiscoveryResponse {
	a.t.Helper()
	if req == nil {
		req = &discovery.DeltaDiscoveryRequest{}
	}

			response: true,
		},
		{
			name: "ack",
			proxy: &TestProxy{
				WatchedResources: map[string]*WatchedResource{
					model.ClusterType: {
						NonceSent: "nonce",
					},
				},
			},
			request: &discovery.DiscoveryRequest{
				TypeUrl:       model.ClusterType,
				VersionInfo:   "v1",
				ResponseNonce: "nonce",
			},
			response: false,
		},
		{
			name: "ack forced",
			proxy: &TestProxy{

		// that fallback may be an empty map, so we re-queue onMatch in case it still needs fixing
		onMatch.OnMatch = fallback.OnMatch
		return []*matcher.Matcher_OnMatch{onMatch} // the inner mapper is gone
	}

	// envoy will nack this eventually
	log.Warnf("empty mapper %v with no fallback", innerMapper.Matcher)
	return innerMapper.allOnMatches()
}

func (m Mapper) allOnMatches() []*matcher.Matcher_OnMatch {

	log.SetPrefix("pack: ")
	telemetry.Start()
	// need "pack op archive" at least.
	if len(os.Args) < 3 {
		log.Print("not enough arguments")
		fmt.Fprintln(os.Stderr)
		usage()
	}
	setOp(os.Args[1])
	telemetry.Inc("pack/invocations")
	telemetry.Inc("pack/op:" + string(op))
	var ar *Archive
	switch op {
	case 'p':
		ar = openArchive(os.Args[2], os.O_RDONLY, os.Args[3:])
		ar.scan(ar.printContents)
	case 'r':

# pinned versions of checked dependencies match their preferred version or not.
# Usage: `hack/lint-dependencies.sh`.

set -o errexit
set -o nounset
set -o pipefail

KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
source "${KUBE_ROOT}/hack/lib/init.sh"

# Detect problematic GOPROXY settings that prevent lookup of dependencies
if [[ "${GOPROXY:-}" == "off" ]]; then

# to avoid including test libraries in production binaries as they often lack
# rigorous review and sufficient testing.
# Usage: `hack/verify-test-code.sh`.

set -o errexit
set -o nounset
set -o pipefail

KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
source "${KUBE_ROOT}/hack/lib/init.sh"
cd "${KUBE_ROOT}"

RELEASE_BIN_PKGS=(
  "${KUBE_ROOT}/cmd/cloud-controller-manager"

// used rather than just deleting the webhook since we want to keep it around after changing the default so user can later
// switch back to it. This is a hack but it is meant to cover a corner case where a user wants to migrate from a non-revisioned
// old version and then later decides to switch back to the old revision again.
func DeactivateIstioInjectionWebhook(ctx context.Context, client kubernetes.Interface) error {

	var addresses sets.String
	if isReq {
		// this is from request, we only send response for the subscribed address
		// At t0, a client request A, we only send A and additional resources back to the client.
		// At t1, a client request B, we only send B and additional resources back to the client, no A here.
		addresses = req.Delta.Subscribed
	} else {
		if w.Wildcard {
			addresses = updatedAddresses
		} else {