Create Dockerfile

.github/workflows/docker.yml

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+name: Build and Push to Docker Hub
+
+on:
+  push:
+    branches:
+      - main 
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Log in to Docker Hub
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
+
+      - name: Build Docker image
+        run: docker build -t ${{ secrets.DOCKER_USERNAME }}/final-python .
+
+      - name: Push to Docker Hub
+        run: docker push ${{ secrets.DOCKER_USERNAME }}/final-python

Dockerfile

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+# Use python 3.7
+FROM python:3.7-slim
+
+# Prevent Python from buffering output
+ENV PYTHONUNBUFFERED=1
+
+# Set cwd
+WORKDIR /
+
+# Copy dependencies file
+COPY requirements.txt .
+
+# Downgrade pip for compatibility with Python 3.7
+RUN pip install --upgrade pip==22.3.1
+
+# Install dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the app
+COPY . .
+
+# Expose the port the app runs on
+EXPOSE 5000
+
+# Run the Flask app
+CMD ["python", "app.py"]