Merge pull request kubernetes-sigs#1326 from njuettner/image-publishing

Enable image publishing

Makefile

@@ -45,7 +45,8 @@ test:
 
 BINARY        ?= external-dns
 SOURCES        = $(shell find . -name '*.go')
-IMAGE         ?= registry.opensource.zalan.do/teapot/$(BINARY)
+IMAGE_STAGING  = gcr.io/k8s-staging-external-dns/$(BINARY)
+IMAGE         ?= us.gcr.io/k8s-artifacts-prod/external-dns/$(BINARY)
 VERSION       ?= $(shell git describe --tags --always --dirty)
 BUILD_FLAGS   ?= -v
 LDFLAGS       ?= -X sigs.k8s.io/external-dns/pkg/apis/externaldns.Version=$(VERSION) -w -s
@@ -66,3 +67,12 @@ build.mini:
 
 clean:
 	@rm -rf build
+
+ # Builds and push container images to the staging bucket.
+.PHONY: release.staging
+
+release.staging:
+	IMAGE=$(IMAGE_STAGING) $(MAKE) build.docker build.push 
+
+release.prod:
+	$(MAKE) build.docker build.push 

cloudbuild.yaml

@@ -0,0 +1,14 @@
+# See https://cloud.google.com/cloud-build/docs/build-config
+timeout: 1200s
+steps:
+  - name: "gcr.io/k8s-testimages/gcb-docker-gcloud:v20190906-745fed4"
+    entrypoint: make
+    env:
+      - DOCKER_CLI_EXPERIMENTAL=enabled
+      - TAG=$_GIT_TAG
+    args:
+      - release.staging
+substitutions:
+  # _GIT_TAG will be filled with a git-based tag for the image, of the form vYYYYMMDD-hash, and
+  # can be used as a substitution
+  _GIT_TAG: "12345"