Push images to Dockerhub instead of GCR

Author: dantevvp

Diff for: .circleci/config.yml

@@ -25,20 +25,20 @@ jobs:
               circleci step halt
             fi
       - run: make image
-      - run: echo "$GCR_JSON_KEY" | docker login -u _json_key --password-stdin us.gcr.io
+      - run: echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
       - run:
-          name: Push image to GCR
+          name: Push image to Dockerhub
           command: |
-            docker tag $CIRCLE_PROJECT_USERNAME/$CIRCLE_PROJECT_REPONAME \
-              us.gcr.io/code-climate/codeclimate-pmd:b$CIRCLE_BUILD_NUM
-            docker push us.gcr.io/code-climate/codeclimate-pmd:b$CIRCLE_BUILD_NUM
+            make release RELEASE_TAG="b$CIRCLE_BUILD_NUM"
+            make release RELEASE_TAG="$(echo $CIRCLE_BRANCH | grep -oP 'channel/\K[\w\-]+')"
 
 workflows:
   version: 2
   build_deploy:
     jobs:
       - test
       - release_images:
+          context: Quality
           requires:
             - test
           filters:

Diff for: Makefile

@@ -1,6 +1,11 @@
-.PHONY: image test
+.PHONY: image test release
 
 IMAGE_NAME ?= codeclimate/codeclimate-pmd
+RELEASE_REGISTRY ?= codeclimate
+
+ifndef RELEASE_TAG
+override RELEASE_TAG = latest
+endif
 
 image:
 	docker build --rm -t $(IMAGE_NAME) .
@@ -13,3 +18,7 @@ upgrade:
 		--workdir /usr/src/app \
 		--volume $(PWD):/usr/src/app \
 		$(IMAGE_NAME) ./bin/upgrade.sh
+
+release:
+	docker tag $(IMAGE_NAME) $(RELEASE_REGISTRY)/codeclimate-pmd:$(RELEASE_TAG)
+	docker push $(RELEASE_REGISTRY)/codeclimate-pmd:$(RELEASE_TAG)