🚀 publish the app on a docker hub

.circleci/config.yml

@@ -9,6 +9,9 @@ workflows:
       - back-deploy-heroku:
           requires:
             - build
+      - docker-build-and-push:
+          requires:
+            - back-deploy-heroku
 
 version: 2
 jobs:
@@ -100,3 +103,29 @@ jobs:
       - run:
           name: Heroku Deploy
           command: git push https://heroku:5f976f6c-4d3d-47f7-b33e-c64757c330f1@git.heroku.com/morning-mesa-76496.git origin/main
+      
+   docker-build-and-push:
+    working_directory: /dockerapp
+    docker:
+      - image: docker:17.05.0-ce-git
+    steps:
+      - checkout
+      - setup_remote_docker
+      - run:
+          name: build app  for docker
+          command: |
+            docker build --cache-from=app -t app .
+      - deploy:
+          name:  publish the app on my docker hub
+          environment:
+            CIRCLE_BUILD_NUM: 1
+            DOCKER_HUB_EMAIL: hallouma.fahem1@gmail.com
+            DOCKER_HUB_USER_ID : 150597dal
+            DOCKER_HUB_PWD : @ssodal1234
+          command: |
+            docker login -e $DOCKER_HUB_EMAIL -u $DOCKER_HUB_USER_ID -p $DOCKER_HUB_PWD
+            docker tag app $DOCKER_HUB_USER_ID/devops_backend:$CIRCLE_BUILD_NUM
+            docker tag app $DOCKER_HUB_USER_ID/devops_backend:latest
+            docker push $DOCKER_HUB_USER_ID/devops_backend:$CIRCLE_BUILD_NUM
+            docker push $DOCKER_HUB_USER_ID/devops_backend:latest
+