🔧 Add CircleCI folder and config file.

.circleci/config.yml

@@ -0,0 +1,46 @@
+version: 2
+jobs:
+  install:
+    docker:
+      - image: circleci/node:12.18.4
+    working_directory: ~/repo
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - dependencies-{{ checksum "yarn.lock" }}
+            # fallback to using the latest cache if no exact match is found
+            - dependencies-
+      - run: 
+          name: Install dependencies
+          command: yarn install
+      - save_cache:
+          key: dependencies-{{ checksum "yarn.lock" }}
+          paths:
+            - ./node_modules
+  docker-build-and-push:
+    docker:
+      - image: docker:17.05.0-ce-git
+    steps:
+      - checkout
+      - setup_remote_docker
+      - run:
+          name: Build application Docker image
+          command: |
+            docker build --cache-from=app -t app .
+      - deploy:
+          name: Publish application to docker hub
+          command: |
+            docker login -e $DOCKER_HUB_EMAIL -u $DOCKER_HUB_USER_ID -p $DOCKER_HUB_PWD
+            docker tag app $DOCKER_HUB_USER_ID/devops-back-final:$CIRCLE_BUILD_NUM
+            docker tag app $DOCKER_HUB_USER_ID/devops-back-final:latest
+            docker push $DOCKER_HUB_USER_ID/devops-back-final:$CIRCLE_BUILD_NUM
+            docker push $DOCKER_HUB_USER_ID/devops-back-final:latest
+workflows:
+  version: 2
+  build-test:
+    jobs:
+      - install
+      - docker-build-and-push:
+          requires:
+            - install

.gitignore

@@ -22,3 +22,6 @@ yarn-error.log*
 
 # Coverage Reports
 coverage
+
+# Local Netlify folder
+.netlify