👷 adding dockerhub publishing with circleci

.circleci/config.yml

@@ -44,6 +44,14 @@ executors:
           POSTGRES_DB: myUsr
           POSTGRES_PASSWORD: somePwd
 
+  executors:
+    dockerhub-publisher:
+      environment:
+        IMAGE_NAME: morganlmd/devops-tp-final-back-docker
+        IMAGE_NAME_TMP: app
+      docker:
+        - image: circleci/buildpack-deps:stretch
+
 jobs:
   initial-build:
     executor: docker-python-executor
@@ -72,6 +80,25 @@ jobs:
             # flask test
       - save_cache_cmd
 
+  dockerhub-publishing:
+    working_directory: /dockerapp
+    executor: dockerhub-publisher
+    steps:
+      - checkout
+      - setup_remote_docker
+      - run:
+          name: Building docker image
+          command: |
+            docker build --cache-from=app -t app .
+      - deploy:
+          name: publishing docker image to dockerhub
+          command: |
+            docker login -e $DOCKERHUB_EMAIL -u $DOCKERHUB_USERNAME -p $DOCKERHUB_PASSWORD
+            docker tag $IMAGE_NAME_TMP $IMAGE_NAME:$CIRCLE_BUILD_NUM
+            docker tag $IMAGE_NAME_TMP $IMAGE_NAME:latest
+            docker push $IMAGE_NAME:$CIRCLE_BUILD_NUM
+            docker push $IMAGE_NAME:latest
+
 workflows:
   version: 2
   build-test-back-and-db:
@@ -80,3 +107,7 @@ workflows:
       - setup-and-test-db:
           requires:
             - initial-build
+      - docker-build:
+          requires:
+            - initial-build
+            - setup-and-test-db