fix(docker): Only build docker image on master or tag (#4644) r=vladikoff

circle.yml

@@ -29,3 +29,48 @@ test:
     # retry the build if the attempt failed
     - retry -n 1 -- npm run test-circle firefoxBinary=/home/ubuntu/fxa-content-server/firefox/firefox:
         parallel: true
+
+# appropriately tag and push the container to dockerhub
+deployment:
+  hub_latest:
+    branch: "master"
+    commands:
+      - "[ ! -z $DOCKERHUB_REPO ]"
+      - git clean -d --force -x
+      - docker info
+      - mkdir -p config
+      - >
+          printf '{"version":{"hash":"%s","version":"%s","source":"https://github.com/%s/%s","build":"%s"}}\n'
+          "$CIRCLE_SHA1"
+          "$CIRCLE_TAG"
+          "$CIRCLE_PROJECT_USERNAME"
+          "$CIRCLE_PROJECT_REPONAME"
+          "$CIRCLE_BUILD_URL"
+          | tee config/version.json version.json
+      - docker build -f Dockerfile-build -t fxa-content-server:build .
+      - docker login -e "$DOCKER_EMAIL" -u "$DOCKER_USER" -p "$DOCKER_PASS"
+      - "docker tag fxa-content-server:build ${DOCKERHUB_REPO}:latest"
+      - "docker push ${DOCKERHUB_REPO}:latest"
+
+  hub_releases:
+    # push all tags
+    tag: /.*/
+    commands:
+      - "[ ! -z $DOCKERHUB_REPO ]"
+      - git clean -d --force -x
+      - docker info
+      - mkdir -p config
+      - >
+          printf '{"version":{"hash":"%s","version":"%s","source":"https://github.com/%s/%s","build":"%s"}}\n'
+          "$CIRCLE_SHA1"
+          "$CIRCLE_TAG"
+          "$CIRCLE_PROJECT_USERNAME"
+          "$CIRCLE_PROJECT_REPONAME"
+          "$CIRCLE_BUILD_URL"
+          | tee config/version.json version.json
+      - docker build -f Dockerfile-build -t fxa-content-server:build .
+      - docker login -e "$DOCKER_EMAIL" -u "$DOCKER_USER" -p "$DOCKER_PASS"
+      - "echo ${DOCKERHUB_REPO}:${CIRCLE_TAG}"
+      - "docker tag fxa-content-server:build ${DOCKERHUB_REPO}:${CIRCLE_TAG}"
+      - "docker images"
+      - "docker push ${DOCKERHUB_REPO}:${CIRCLE_TAG}"