start

Dockerfile

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+FROM golang:alpine as builder
+
+WORKDIR /go/src/app
+
+# Get Reflex for live reload in dev
+ENV GO111MODULE=on
+RUN go get github.com/cespare/reflex
+
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
+
+RUN go build -o ./run .
+
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+WORKDIR /root/
+
+#Copy executable from builder
+COPY --from=builder /go/src/app/run .
+
+EXPOSE 8080
+CMD ["./run"]

go.mod

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+module github.com/zeevdiukman/zprox
+
+go 1.23.0

main.go

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+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+func init() {
+	fmt.Println("ZPROX started")
+}
+func handler1(w http.ResponseWriter, r *http.Request) {
+	w.Write([]byte("HELLO ZPROX"))
+}
+func main() {
+	router := http.NewServeMux()
+	router.Handle("/", http.HandlerFunc(handler1))
+
+	srv := &http.Server{
+		Addr:    ":80",
+		Handler: router,
+	}
+
+	go func() {
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Fatalf("Failed to initialize server: %v\n", err)
+		}
+	}()
+
+	log.Printf("Listening on port %v\n", srv.Addr)
+
+	// Wait for kill signal of channel
+	quit := make(chan os.Signal, 1)
+
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+
+	// This blocks until a signal is passed into the quit channel
+	<-quit
+
+	// The context is used to inform the server it has 5 seconds to finish
+	// the request it is currently handling
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	// Shutdown server
+	log.Println("Shutting down server...")
+	if err := srv.Shutdown(ctx); err != nil {
+		log.Fatalf("Server forced to shutdown: %v\n", err)
+	}
+}