Simple Go app to print an UUID per instance. Useful to debug load balancers

node-id.go

package main

import (
	"code.google.com/p/go-uuid/uuid"
	"net/http"
)

var (
	id []byte = []byte(uuid.New() + "\n")
)

func main(){
	http.HandleFunc("/", getId)
	println("Listening on 0.0.0.0:8000")
	http.ListenAndServe(":8000", nil)
}

func getId(w http.ResponseWriter, r *http.Request) {
	w.Write(id)
}