golang 如何部署到服务器？

package main

import (

    "fmt"

    "log"

    "net/http"

)

func sayHello(w http.ResponseWriter, r *http.Request)  {

    fmt.Fprintf(w,"您看到我了")

}

func main() {

    http.HandleFunc("/",sayHello)

    log.Println("启动了")

    err := http.ListenAndServe(":9000",nil)

    if err != nil{

        log.Fatal("List 9000")

    }

}