Add a configarion for circleci

Author: shterion

.circleci/config.yml

@@ -0,0 +1,71 @@
+version: 2.1
+executors:
+  docker-publisher:
+    environment:
+      IMAGE_NAME: openintegrationhub/contacts-transformer-template
+    docker:
+      - image: circleci/node:8-stretch
+jobs:
+  build:
+    executor: docker-publisher
+    working_directory: ~/repo
+    steps:
+      - checkout
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "package.json" }}
+            # Fallback to using the latest cache if no exact match is found
+            - v1-dependencies-
+
+      - run: yarn install
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "package.json" }}
+
+      # Run tests
+      - run: yarn test
+      - setup_remote_docker
+
+      # Build docker image
+      - run:
+          command: docker build -t $IMAGE_NAME .
+      # Make docker image persistent for other jobs
+      - run:
+          name: Archive Docker image
+          command: docker save -o image.tar $IMAGE_NAME
+      - persist_to_workspace:
+          root: .
+          paths:
+            - ./image.tar
+      - run:
+          command: docker images
+  # Publish the image on Dockerhub
+  publish-latest:
+    executor: docker-publisher
+    steps:
+      - attach_workspace:
+          at: /tmp/workspace
+      - setup_remote_docker
+      - run:
+          name: Load archived Docker image
+          command: docker load -i /tmp/workspace/image.tar
+      - run:
+          command: |
+            echo "$DOCKERHUB_PASS" | docker login -u "$DOCKERHUB_USERNAME" --password-stdin
+            docker push openintegrationhub/contacts-transformer-template:latest
+workflows:
+  version: 2
+  build-master:
+    jobs:
+      - build:
+          filters:
+            branches:
+              only: master
+      - publish-latest:
+          requires:
+            - build
+          filters:
+            branches:
+              only: master