Create Dockerfile

Dockerfile

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+FROM python:3.9-slim
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the dependencies file to the working directory
+COPY requirements.txt .
+
+# Install any needed packages specified in requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
+
+# This command creates the credentials file from the secret we will set in the UI
+# It ensures our app can authenticate with Google Cloud
+RUN echo $GOOGLE_CREDENTIALS_JSON > /app/google_credentials.json
+ENV GOOGLE_APPLICATION_CREDENTIALS=/app/google_credentials.json
+
+# Copy the rest of the application code (app.py, templates/, etc.)
+COPY . .
+
+# Make port 7860 available to the world outside this container (Hugging Face standard)
+EXPOSE 7860
+
+# Run the web server when the container launches
+# Gunicorn is a robust server suitable for production
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "app:app"]