syncserver/.circleci/config.yml

# These environment variables must be set in CircleCI UI
#
# DOCKERHUB_REPO - docker hub repo, format: <username>/<repo>
# DOCKER_EMAIL   - login info for docker hub
# DOCKER_USER
# DOCKER_PASS
#
version: 2
jobs:
  build:
    docker:
      - image: circleci/node
    steps:
      - checkout
      - setup_remote_docker

      - run:
          name: Create version.json
          command: >
            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"
            > version.json            
      - store_artifacts:
          path: version.json

      - run:
          name: Build deployment container image
          command: docker build -t syncserver:build .

      - run:
          name: Run Tests
          command: docker run syncserver:build /bin/sh -c "flake8 syncserver && nosetests syncstorage.tests"

      - run:
          name: Push to Dockerhub
          command: |
            if [ "${CIRCLE_BRANCH}" == "master" ]; then
              DOCKER_TAG="latest"
            fi

            if [[ "${CIRCLE_BRANCH}" == feature* ]] || [[ "${CIRCLE_BRANCH}" == dockerpush* ]]; then
              DOCKER_TAG="${CIRCLE_BRANCH}"
            fi

            if [ -n "${CIRCLE_TAG}" ]; then
              DOCKER_TAG="$CIRCLE_TAG"
            fi

            if [ -n "${DOCKER_TAG}" ]; then
              echo "$DOCKER_PASS" | docker login -u "$DOCKER_USER" --password-stdin
              echo ${DOCKERHUB_REPO}:${DOCKER_TAG}
              docker tag syncserver:build ${DOCKERHUB_REPO}:${DOCKER_TAG}
              docker images
              docker push ${DOCKERHUB_REPO}:${DOCKER_TAG}
            fi            

workflows:
  version: 2

  # workflow jobs are _not_ run in tag builds by default
  # we use filters to whitelist jobs that should be run for tags

  # workflow jobs are run in _all_ branch builds by default
  # we use filters to blacklist jobs that shouldn't be run for a branch

  # see: https://circleci.com/docs/2.0/workflows/#git-tag-job-execution

  build-test-push:
    jobs:
      - build:
          filters:
            tags:
              only: /.*/