feat(goswagger): Continue on goswagger template

templates/go-swagger/app/templates/server/configureapi.gotmpl

@@ -51,6 +51,7 @@ type Config struct {
 	{{ pascalize .Name }}API
 	{{ end -}}
 	Logger func(string, ...interface{})
+	
 	// InnerMiddleware is for the handler executors. These do not apply to the swagger.json document.
 	// The middleware executes after routing but before authentication, binding and validation
 	InnerMiddleware func(http.Handler) http.Handler

templates/go-swagger/app/templates/server/main.gotmpl

@@ -20,7 +20,7 @@ import (
 // initTag is the signature of the function that tag initialization should respect.
 type initTag func(*restapi.Config) error
 
-// tagswill be fulfill by init function in tag_XXX.go.
+// tags will be fulfill by init function in tag_XXX.go.
 var tags = map[string]initTag{}
 
 func main() {
@@ -33,6 +33,12 @@ func main() {
 		logrus.WithError(err).Fatal("fail to initialize gocommon.log")
 	}
 
+	// Initialize listenAddress
+	listenAddress, err := server.GetListenAddressFromEnvOrFlags()
+	if err != nil {
+		logger.WithError(err).Fatal("fail to initalize listenAddress")
+	}
+
 	// Initialize tracing
 	logger.Info("Initializing tracing")
 	tp, err := tracing.Init()
@@ -62,7 +68,7 @@ func main() {
 	}
 
 	srv := http.Server{
-		Addr:    ":8081",
+		Addr:              listenAddress,
 		Handler:           h,
 		IdleTimeout:       30 * time.Second,
 		ReadHeaderTimeout: 2 * time.Second,