Add heroku setup and action

Author: LauraBoenchenLB

.github/workflows/model-training.yml

@@ -6,13 +6,16 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v3
+
       - name: Setup Python und install requirements
         uses: actions/setup-python@v4
         with:
           python-version: "3.8"
       - run: pip install -r requirements.txt
+
       - name: Train model
         run: python src/train.py
+
       - name: Upload trained model
         uses: actions/upload-artifact@v4
         with:

.github/workflows/production-deployment.yml

@@ -0,0 +1,52 @@
+name: Deploy to Production
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  train-model:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Switch to heroku branch
+        shell: bash
+        run: |
+          git config --global user.email ""
+          git config --global user.name "Github Actions"
+          git fetch --all --unshallow
+          git checkout heroku 2>/dev/null || git checkout -b heroku
+          git merge main -X theirs --allow-unrelated-histories
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.9"
+
+      - name: Install dependencies
+        run: pip install -r requirements.txt
+
+      - name: Train model
+        run: python src/train.py
+
+      - name: Upload trained model
+        uses: actions/upload-artifact@v4
+        with:
+          name: regressor_mpg.pickle
+          path: data/models/regressor_mpg.pickle
+
+      - name: Push changes to heroku branch
+        shell: bash
+        run: |
+          git add .
+          git add --force data/models/regressor_mpg.pickle
+          git commit -m "[CI] update trained model" || echo "No changes to commit"
+          git push --set-upstream origin heroku
+
+      - name: Deploy to Heroku
+        uses: akhileshns/heroku-deploy@v3.13.15
+        with:
+          heroku_api_key: ${{secrets.HEROKU_API_KEY}}
+          heroku_app_name: ${{secrets.HEROKU_APP_NAME}}
+          heroku_email: ${{secrets.HEROKU_EMAIL}}
+          branch: "heroku"

Procfile

@@ -0,0 +1 @@
+web: gunicorn src.api:app