enable timestamp on image (#556)

* enable timestamp on image

* fix name issue

fx.go

@@ -19,7 +19,7 @@ import (
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
 )
 
-const version = "0.9.44"
+const version = "0.9.45"
 
 func init() {
 	go checkForUpdate()

middlewares/build.go

@@ -44,7 +44,7 @@ func Build(ctx context.Contexter) (err error) {
 	language := ctx.Get("language").(string)
 	host := ctx.Get("host").(string)
 	kubeconf := ctx.Get("kubeconf").(string)
-	name := ctx.Get("name").(string)
+	name := fmt.Sprintf("%s-%s", ctx.Get("name").(string), time.Now().Format("20060102150405"))
 
 	if err := bundle.Bundle(workdir, language, fn, deps...); err != nil {
 		return err
@@ -63,7 +63,7 @@ func Build(ctx context.Contexter) (err error) {
 		if err := docker.BuildImage(ctx.GetContext(), workdir, name); err != nil {
 			return err
 		}
-		nameWithTag := name + ":latest"
+		nameWithTag := fmt.Sprintf("%s:latest", name)
 		if err := docker.TagImage(ctx.GetContext(), name, nameWithTag); err != nil {
 			return err
 		}