Merge pull request #59 from mozilla/more-ci-iteration

properly push tags to dockerhub

.circleci/config.yml

@@ -34,7 +34,7 @@ jobs:
                 export DOCKER_IMAGE="mozilla/${APP_NAME}:${CIRCLE_TAG}"
             fi
 
-            if [ "${CIRCLE_BRANCH}" == "master" ]; then
+            if [ "${CIRCLE_BRANCH}" == "master" ] || [ -n "${CIRCLE_TAG}" ]; then
                 echo "${DOCKER_PASSWORD}" | docker login -u="${DOCKER_USERNAME}" --password-stdin
                 docker tag "${APP_NAME}:build" "${DOCKER_IMAGE}"
                 docker push "${DOCKER_IMAGE}"