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61package main
import (
"context"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"time"
)
const port = ":8081"
func main() {
log.SetFlags(0)
log.Print("starting the service...")
defer log.Print("shutting down the service...")
// Closing signal
stopChan := make(chan os.Signal, 1)
signal.Notify(
stopChan,
// syscall.SIGKILL, // never gets caught on POSIX
syscall.SIGINT,
syscall.SIGTERM,
syscall.SIGQUIT,
)
sm := http.NewServeMux()
sm.Handle("/", l{})
srv := &http.Server{
Addr: port,
Handler: sm,
}
log.Println("serving on", port)
go func() {
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatal(err)
}
}()
<-stopChan
ctxShutDown, cancel := context.WithTimeout(
context.Background(),
time.Second*10,
)
defer func() { cancel() }()
if err := srv.Shutdown(ctxShutDown); err != nil {
log.Fatalf("server Shutdown Failed: %v", err)
}
}
type l struct{}
func (b l) ServeHTTP(w http.ResponseWriter, r *http.Request) {
log.Printf("[%s] serving %s\n", time.Now().Format(time.RFC3339), r.URL.Path)
http.FileServer(http.Dir(".")).ServeHTTP(w, r)
}