An http server

main.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+)
+
+func main() {
+	p := os.Getenv("PORT")
+	if p == "" {
+		p = "8080"
+	}
+	addr := fmt.Sprintf(":%s", p)
+
+	if err := http.ListenAndServe(addr, http.HandlerFunc(http.NotFound)); err != nil {
+		panic(err)
+	}
+}