Section 11.5 - Using Docker with Heroku

.circleci/config.yml

@@ -113,6 +113,26 @@ jobs:
           name: Deploy to Heroku
           command: |
             git push https://heroku:[email protected]/$HEROKU_APP_NAME.git master
+  
+  section_11_build_and_push_to_heroku_docker:
+    <<: *defaults
+    steps:
+      - checkout
+      - setup_remote_docker:
+          docker_layer_caching: true
+      - run: docker login --username=$HEROKU_EMAIL --password=$HEROKU_API_KEY registry.heroku.com
+      - run:
+          name: Setup Heroku CLI
+          command: |
+            wget -qO- https://cli-assets.heroku.com/install-ubuntu.sh | sh
+      - run: 
+          name: Build and Push Image
+          command: |
+            make build-ml-api-heroku push-ml-api-heroku
+      - run: 
+          name: Release to Heroku
+          command: |
+            heroku container:release web --app $HEROKU_APP_NAME
 
 workflows:
   version: 2
@@ -130,7 +150,14 @@ workflows:
             branches:
               only:
                 - master
-      - section_10_deploy_to_heroku:
+      # - section_10_deploy_to_heroku:
+      #     requires:
+      #       - train_and_upload_regression_model
+      #     filters:
+      #       branches:
+      #         only:
+      #           - master
+      - section_11_build_and_push_to_heroku_docker:
           requires:
             - train_and_upload_regression_model
           filters:

Makefile

@@ -0,0 +1,9 @@
+NAME=udemy-ml-api
+COMMIT_ID=$(shell git rev-parse HEAD)
+
+
+build-ml-api-heroku:
+	docker build --build-arg PIP_EXTRA_INDEX_URL=${PIP_EXTRA_INDEX_URL} -t registry.heroku.com/$(NAME)/web:$(COMMIT_ID) .
+
+push-ml-api-heroku:
+	docker push registry.heroku.com/${HEROKU_APP_NAME}/web:$(COMMIT_ID)