Merge pull request kubernetes#1 from sharifelgamal/master

add versioning and tag v0.0.1

Author: sharifelgamal

Makefile

@@ -1,14 +1,15 @@
 REGISTRY?=gcr.io/k8s-minikube
+VERSION=v0.0.1
 
 build:
 	CGO_ENABLED=0 GOOS=linux go build -o out/gcp-auth-webhook -ldflags=$(PROVISIONER_LDFLAGS) server.go
 
 .PHONY: image
 image: build
-	docker build -t $(REGISTRY)/gcp-auth-webhook -f Dockerfile ./out
+	docker build -t $(REGISTRY)/gcp-auth-webhook:$(VERSION) -f Dockerfile ./out
 
 
 .PHONY: push
 push: image
-	docker push $(REGISTRY)/gcp-auth-webhook
+	docker push $(REGISTRY)/gcp-auth-webhook:$(VERSION)