Generate useless random docker names and make it available via http

Dockerfile

FROM alpine
COPY names-generator /
EXPOSE 8080
CMD ["/names-generator"]

patch

--- original_names-generator.go	2017-12-03 20:28:56.062210047 +0400
+++ names-generator.go	2017-12-03 20:53:53.961410371 +0400
@@ -1,8 +1,10 @@
-package namesgenerator
+package main
 
 import (
 	"fmt"
 	"math/rand"
+	"time"
+	"net/http"
 )
 
 var (
@@ -606,7 +608,9 @@
 // integer between 0 and 10 will be added to the end of the name, e.g `focused_turing3`
 func GetRandomName(retry int) string {
 begin:
-	name := fmt.Sprintf("%s_%s", left[rand.Intn(len(left))], right[rand.Intn(len(right))])
+	s1 := rand.NewSource(time.Now().UnixNano())
+	r1 := rand.New(s1)
+	name := fmt.Sprintf("%s_%s", left[r1.Intn(len(left))], right[r1.Intn(len(right))])
 	if name == "boring_wozniak" /* Steve Wozniak is not boring */ {
 		goto begin
 	}
@@ -616,3 +620,22 @@
 	}
 	return name
 }
+
+func rootHandler(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/html")
+	w.WriteHeader(http.StatusOK)
+	fmt.Fprintln(w, string("<ul>"))
+	i := 1
+	for i <= 5 {
+		data := GetRandomName(0)
+		fmt.Fprintln(w, string(fmt.Sprintf("  <li> %s </li>", data)))
+		i = i +1
+	}
+	fmt.Fprintln(w, string("</ul>"))
+}
+
+
+func main() {
+	http.HandleFunc("/", rootHandler)
+	http.ListenAndServe(":8080", nil)
+}

prejob.sh

#!/bin/bash

pushd /mnt/docker/name_generate/code
  curl -o original_names-generator.go -s https://raw.githubusercontent.com/moby/moby/master/pkg/namesgenerator/names-generator.go 
  patch original_names-generator.go patch
  mv original_names-generator.go names-generator.go
  docker run -it -v "$PWD":/usr/src/names-generator -w /usr/src/names-generator golang:alpine go build -v
popd