Ambient Upgrade - Strategies.png...

// supports the given request.
func http1ServerSupportsRequest(req *Request) bool {
	if req.ProtoMajor == 1 {
		return true
	}
	// Accept "PRI * HTTP/2.0" upgrade requests, so Handlers can
	// wire up their own HTTP/2 upgrades.
	if req.ProtoMajor == 2 && req.ProtoMinor == 0 &&
		req.Method == "PRI" && req.RequestURI == "*" {
		return true
	}
	// Reject HTTP/0.x, and all other HTTP/2+ requests (which

Add the existing custom selector label ``` #### Migrating an existing Helm release An existing helm release can be `helm upgrade`d to this chart by using the same release name. For example, if a previous installation was done like: ```console helm install istio-ingress manifests/charts/gateways/istio-ingress -n istio-system ``` It could be upgraded with ```console helm upgrade istio-ingress manifests/charts/gateway -n istio-system --set name=istio-ingressgateway --set labels.app=istio-ingressgateway...

// module cache.
//
// To add a dependency for a package or upgrade it to its latest version:
//
//	go get example.com/pkg
//
// To upgrade or downgrade a package to a specific version:
//
//	go get example.com/pkg@v1.2.3
//
// To remove a dependency on a module and downgrade modules that require it:
//
//	go get example.com/mod@none
//
// To upgrade the minimum required Go version to the latest released Go version:

				},
			},
			upgrade: false,
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			upgrade := shouldH2Upgrade(test.clusterName, test.port, test.mesh, test.connectionPool)

			if upgrade != test.upgrade {
				t.Fatalf("got: %t, want: %t (%v, %v)", upgrade, test.upgrade, test.mesh.H2UpgradePolicy, test.connectionPool.Http.H2UpgradePolicy)
			}

o=t.getAttribute("is"),i=e.getRegisteredDefinition(t.localName)||e.getRegisteredDefinition(o);if(i&&(o&&i.tag==t.localName||!o&&!i["extends"]))return n(t,i,r)}}function n(t,n,o){return a.upgrade&&console.group("upgrade:",t.localName),n.is&&t.setAttribute("is",n.is),r(t,n),t.__upgraded__=!0,i(t),o&&e.attached(t),e.upgradeSubtree(t,o),a.upgrade&&console.groupEnd(),t}function r(e,t){Object.__proto__?e.__proto__=t.prototype:(o(e,t.prototype,t["native"]),e.__proto__=t.prototype)}function o(e,t,n){for(var r={},o=t;o!...

	if testing.Short() {
		t.Skip("skipping in short mode")
	}

	s := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
		w.Header().Set("Connection", "Upgrade")
		w.Header().Set("Upgrade", "someProto")
		w.WriteHeader(StatusSwitchingProtocols)
		c, buf, err := w.(Hijacker).Hijack()
		if err != nil {
			return
		}
		defer c.Close()

    /** The key of the message: Unknown version information. */
    public static final String ERRORS_unknown_version_for_upgrade = "{errors.unknown_version_for_upgrade}";

    /** The key of the message: Failed to upgrade from {0}: {1} */
    public static final String ERRORS_failed_to_upgrade_from = "{errors.failed_to_upgrade_from}";

    /** The key of the message: Failed to start reindexing from {0} to {1} */

		io.WriteString(conn, "HTTP/1.1 101 Switching Protocols Hi\r\nConnection: upgRADe\r\nUpgrade: foo\r\n\r\nSome buffered data\n")
		bs := bufio.NewScanner(conn)
		bs.Scan()
		fmt.Fprintf(conn, "%s\n", strings.ToUpper(bs.Text()))
		<-done
	}))

	req, _ := NewRequest("GET", cst.ts.URL, nil)
	req.Header.Set("Upgrade", "foo")
	req.Header.Set("Connection", "upgrade")
	res, err := cst.c.Do(req)
	if err != nil {
		t.Fatal(err)

  local node_type=$1
  local node_labels=""
  if [[ "${KUBE_PROXY_DAEMONSET:-}" == "true" && "${node_type}" != "master" ]]; then
    # Add kube-proxy daemonset label to node to avoid situation during cluster
    # upgrade/downgrade when there are two instances of kube-proxy running on a node.
    node_labels="node.kubernetes.io/kube-proxy-ds-ready=true"
  fi
  if [[ -n "${NODE_LABELS:-}" ]]; then