combine docker push and gcr push

Signed-off-by: Lyndon-Li <lyonghui@vmware.com>

.github/workflows/push.yml

@@ -60,6 +60,13 @@ jobs:
         files: coverage.out
         verbose: true
 
+    # Use the JSON key in secret to login gcr.io
+    - uses: 'docker/login-action@v2'
+      with:
+        registry: 'gcr.io' # or REGION.docker.pkg.dev
+        username: '_json_key'
+        password: '${{ secrets.GCR_SA_KEY }}'
+
     # Only try to publish the container image from the root repo; forks don't have permission to do so and will always get failures.
     - name: Publish container image
       if: github.repository == 'vmware-tanzu/velero'
@@ -91,19 +98,3 @@ jobs:
         uploader ${VELERO_RESTORE_HELPER_IMAGE_FILE} ${GCS_BUCKET}
         uploader ${VELERO_IMAGE_BACKUP_FILE} ${GCS_BUCKET}
         uploader ${VELERO_RESTORE_HELPER_IMAGE_BACKUP_FILE} ${GCS_BUCKET}
-
-    # Use the JSON key in secret to login gcr.io
-    - uses: 'docker/login-action@v1'
-      with:
-        registry: 'gcr.io' # or REGION.docker.pkg.dev
-        username: '_json_key'
-        password: '${{ secrets.GCR_SA_KEY }}'
-
-    # Push image to GCR to facilitate some environments that have rate limitation to docker hub, e.g. vSphere.
-    - name: Publish container image to GCR
-      if: github.repository == 'vmware-tanzu/velero'
-      run: |
-        sudo swapoff -a
-        sudo rm -f /mnt/swapfile
-        docker image prune -a --force
-        REGISTRY=gcr.io/velero-gcp ./hack/docker-push.sh

Makefile

@@ -22,9 +22,11 @@ PKG := github.com/vmware-tanzu/velero
 
 # Where to push the docker image.
 REGISTRY ?= velero
+GCR_REGISTRY ?= gcr.io/velero-gcp
 
 # Image name
 IMAGE ?= $(REGISTRY)/$(BIN)
+GCR_IMAGE ?= $(GCR_REGISTRY)/$(BIN)
 
 # We allow the Dockerfile to be configurable to enable the use of custom Dockerfiles
 # that pull base images from different registries.
@@ -66,8 +68,10 @@ TAG_LATEST ?= false
 
 ifeq ($(TAG_LATEST), true)
 	IMAGE_TAGS ?= $(IMAGE):$(VERSION) $(IMAGE):latest
+	GCR_IMAGE_TAGS ?= $(GCR_IMAGE):$(VERSION) $(GCR_IMAGE):latest
 else
 	IMAGE_TAGS ?= $(IMAGE):$(VERSION)
+	GCR_IMAGE_TAGS ?= $(GCR_IMAGE):$(VERSION)
 endif
 
 ifeq ($(shell docker buildx inspect 2>/dev/null | awk '/Status/ { print $$2 }'), running)
@@ -186,6 +190,7 @@ endif
 	--output=type=$(BUILDX_OUTPUT_TYPE) \
 	--platform $(BUILDX_PLATFORMS) \
 	$(addprefix -t , $(IMAGE_TAGS)) \
+	$(addprefix -t , $(GCR_IMAGE_TAGS)) \
 	--build-arg=GOPROXY=$(GOPROXY) \
 	--build-arg=PKG=$(PKG) \
 	--build-arg=BIN=$(BIN) \