Create Dockerfile

Dockerfile

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+# Start from a standard Python image (3.10 is robust and common)
+FROM python:3.10
+
+# Set the working directory inside the container
+# All subsequent commands will run from here
+WORKDIR /app
+
+# Copy the requirements file and install the necessary dependencies
+# The RUN command executes the installation of PyTorch, Transformers, and FastAPI
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the main application code
+COPY main.py .
+
+# Expose the port the application will run on
+# Hugging Face Spaces requires port 7860 for custom apps
+EXPOSE 7860
+
+# Define the command to run the Uvicorn server (which hosts FastAPI)
+# It tells the container to start the 'app' object inside 'main.py' 
+# and listen on port 7860
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]