hello-server

hello-server.go

package main

import (
	"io"
	"log"
	"net/http"
)

func main() {
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		io.WriteString(w, "Hello\n")
	})

	log.Fatal(http.ListenAndServe(":8000", nil))
}

Makefile

hello-server:
	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 docker run --rm -v `pwd`:/app -w /app golang:1.15-buster go build -o hello-server

clean:
	-rm hello-server