[cloudbuild] Build all images in a single step. (kubernetes-sigs#1891)

* [cloudbuild] Build all images in a single step.

* [makefile] Use `STAGING_IMAGE_REGISTRY` only to default `IMAGE_REGISTRY`

* [cloudbuild] Set `IMAGE_REGISTRY` instead of `STAGING_IMAGE_REGISTRY`

Makefile

@@ -35,7 +35,7 @@ DOCKER_BUILDX_CMD ?= docker buildx
 IMAGE_BUILD_CMD ?= $(DOCKER_BUILDX_CMD) build
 IMAGE_BUILD_EXTRA_OPTS ?=
 # TODO(#52): Add kueue to k8s gcr registry
-STAGING_IMAGE_REGISTRY ?= gcr.io/k8s-staging-kueue
+STAGING_IMAGE_REGISTRY := gcr.io/k8s-staging-kueue
 IMAGE_REGISTRY ?= $(STAGING_IMAGE_REGISTRY)
 IMAGE_NAME := kueue
 IMAGE_REPO ?= $(IMAGE_REGISTRY)/$(IMAGE_NAME)
@@ -303,7 +303,7 @@ artifacts: kustomize yq helm
 	$(HELM) package --version $(GIT_TAG) --app-version $(GIT_TAG) charts/kueue -d artifacts/
 	mv artifacts/kueue-$(GIT_TAG).tgz artifacts/kueue-chart-$(GIT_TAG).tgz
 	# Revert the image changes
-	$(YQ)  e  '.controllerManager.manager.image.repository = "$(STAGING_IMAGE_REGISTRY)/$(IMAGE_NAME)" | .controllerManager.manager.image.tag = "main" | .controllerManager.manager.image.pullPolicy = "Always"' -i charts/kueue/values.yaml
+	$(YQ)  e  '.controllerManager.manager.image.repository = "$(IMAGE_REGISTRY)/$(IMAGE_NAME)" | .controllerManager.manager.image.tag = "main" | .controllerManager.manager.image.pullPolicy = "Always"' -i charts/kueue/values.yaml
 
 .PHONY: prepare-release-branch
 prepare-release-branch: yq kustomize
@@ -317,7 +317,7 @@ prepare-release-branch: yq kustomize
 # Developers don't need to build this image, as it will be available as gcr.io/k8s-staging-kueue/debug
 .PHONY: debug-image-push
 debug-image-push:
-	$(IMAGE_BUILD_CMD) -t $(STAGING_IMAGE_REGISTRY)/debug:$(GIT_TAG) \
+	$(IMAGE_BUILD_CMD) -t $(IMAGE_REGISTRY)/debug:$(GIT_TAG) \
 		--platform=$(PLATFORMS) \
 		--push ./hack/debugpod
 
@@ -329,8 +329,8 @@ importer-build:
 .PHONY: importer-image-build
 importer-image-build:
 	$(IMAGE_BUILD_CMD) \
-		-t $(STAGING_IMAGE_REGISTRY)/importer:$(GIT_TAG) \
-		-t $(STAGING_IMAGE_REGISTRY)/importer:$(RELEASE_BRANCH)-latest \
+		-t $(IMAGE_REGISTRY)/importer:$(GIT_TAG) \
+		-t $(IMAGE_REGISTRY)/importer:$(RELEASE_BRANCH)-latest \
 		--platform=$(PLATFORMS) \
 		--build-arg BASE_IMAGE=$(BASE_IMAGE) \
 		--build-arg BUILDER_IMAGE=$(BUILDER_IMAGE) \

cloudbuild.yaml

@@ -8,26 +8,10 @@ steps:
     entrypoint: make
     args:
       - image-push
-    env:
-      - IMAGE_REGISTRY=gcr.io/$PROJECT_ID
-      - GIT_TAG=$_GIT_TAG
-      - EXTRA_TAG=$_PULL_BASE_REF
-      - DOCKER_BUILDX_CMD=/buildx-entrypoint
-  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20221214-1b4dd4d69a'
-    entrypoint: make
-    args:
       - debug-image-push
-    env:
-      - IMAGE_REGISTRY=gcr.io/$PROJECT_ID
-      - GIT_TAG=$_GIT_TAG
-      - EXTRA_TAG=$_PULL_BASE_REF
-      - DOCKER_BUILDX_CMD=/buildx-entrypoint
-  - name: 'gcr.io/k8s-staging-test-infra/gcb-docker-gcloud:v20221214-1b4dd4d69a'
-    entrypoint: make
-    args:
       - importer-image-push
     env:
-      - STAGING_IMAGE_REGISTRY=gcr.io/$PROJECT_ID
+      - IMAGE_REGISTRY=gcr.io/$PROJECT_ID
       - GIT_TAG=$_GIT_TAG
       - EXTRA_TAG=$_PULL_BASE_REF
       - DOCKER_BUILDX_CMD=/buildx-entrypoint