test build and push docker

.circleci/config.yml

@@ -52,7 +52,42 @@ jobs:
             - run: 
                 name: Launching e2e test
                 command: yarn test:e2e
-                
+    build_image:
+        environment:
+            IMAGE_NAME: galimede/my-awesome-ci-expr
+        docker:
+            - image: circleci/buildpack-deps:stretch
+        steps:
+            - checkout
+            - setup_remote_docker
+            - run:
+                name: Build Docker image
+                command: docker build -t $IMAGE_NAME:app .
+            - run:
+                name: Archive Docker image
+                command: docker save -o image.tar $IMAGE_NAME
+            - persist_to_workspace:
+                root: .
+                paths:
+                    - ./image.tar
+    publish_latest:
+        environment:
+          IMAGE_NAME: galimede/my-awesome-ci-expr
+        docker:
+            - image: circleci/buildpack-deps:stretch       
+        steps:
+            - attach_workspace:
+                at: /tmp/workspace
+            - setup_remote_docker
+            - run:
+                name: Load archived Docker image
+                command: docker load -i /tmp/workspace/image.tar
+            - run:
+                name: Publish Docker Image to Docker Hub
+                command: |
+                    echo "$DOCKERHUB_PASS" | docker login -u "$DOCKERHUB_USERNAME" --password-stdin
+                    docker tag $IMAGE_NAME:latest $IMAGE_NAME:$CIRCLE_BUILD_NUM
+                    docker push $IMAGE_NAME
 
 workflows:
   build_and_test:
@@ -67,3 +102,22 @@ workflows:
         - test_e2e:
             requires:
                 - build
+        - build_image:
+            requires: 
+                - test
+                - test_e2e
+                - check_format
+            filters:
+              branches:
+                only:
+                    - main
+        - publish_latest:
+            requires: 
+                - test
+                - test_e2e
+                - check_format
+                - build_image
+            filters:
+              branches:
+                only:
+                    - main