Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/test/images/serve-hostname/serve_hostname.go

@@ -0,0 +1,105 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// A small utility to just serve the hostname on TCP and/or UDP.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+var (
+	doTCP  = flag.Bool("tcp", false, "Serve raw over TCP.")
+	doUDP  = flag.Bool("udp", false, "Serve raw over UDP.")
+	doHTTP = flag.Bool("http", true, "Serve HTTP.")
+	port   = flag.Int("port", 9376, "Port number.")
+)
+
+func main() {
+	flag.Parse()
+	if *doHTTP && (*doTCP || *doUDP) {
+		log.Fatalf("Can't server TCP/UDP mode and HTTP mode at the same time")
+	}
+
+	hostname, err := os.Hostname()
+	if err != nil {
+		log.Fatalf("Error from os.Hostname(): %s", err)
+	}
+
+	if *doTCP {
+		listener, err := net.Listen("tcp", fmt.Sprintf(":%d", *port))
+		if err != nil {
+			log.Fatalf("Error from net.Listen(): %s", err)
+		}
+		go func() {
+			for {
+				conn, err := listener.Accept()
+				if err != nil {
+					log.Fatalf("Error from Accept(): %s", err)
+				}
+				log.Printf("TCP request from %s", conn.RemoteAddr().String())
+				conn.Write([]byte(hostname))
+				conn.Close()
+			}
+		}()
+	}
+	if *doUDP {
+		addr, err := net.ResolveUDPAddr("udp", fmt.Sprintf(":%d", *port))
+		if err != nil {
+			log.Fatalf("Error from net.ResolveUDPAddr(): %s", err)
+		}
+		sock, err := net.ListenUDP("udp", addr)
+		if err != nil {
+			log.Fatalf("Error from ListenUDP(): %s", err)
+		}
+		go func() {
+			var buffer [16]byte
+			for {
+				_, cliAddr, err := sock.ReadFrom(buffer[0:])
+				if err != nil {
+					log.Fatalf("Error from ReadFrom(): %s", err)
+				}
+				log.Printf("UDP request from %s", cliAddr.String())
+				sock.WriteTo([]byte(hostname), cliAddr)
+			}
+		}()
+	}
+	if *doHTTP {
+		http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+			log.Printf("HTTP request from %s", r.RemoteAddr)
+			fmt.Fprintf(w, "%s", hostname)
+		})
+		go func() {
+			// Run in a closure so http.ListenAndServe doesn't block
+			log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", *port), nil))
+		}()
+	}
+	log.Printf("Serving on port %d.\n", *port)
+	signals := make(chan os.Signal)
+	signal.Notify(signals, syscall.SIGTERM)
+	sig := <-signals
+	log.Printf("Shutting down after receiving signal: %s.\n", sig)
+	log.Printf("Awaiting pod deletion.\n")
+	time.Sleep(60 * time.Second)
+}