Create Dockerfile

Dockerfile

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+# Use a specific Python version
+FROM python:3.11
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Install required system packages (ffmpeg is needed by yt-dlp for merging/conversion)
+RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Create a non-root user for security
+# Using uid 1000 which is common
+RUN useradd -m -u 1000 appuser
+
+# Copy requirements first to leverage Docker cache
+COPY requirements.txt .
+
+# Install Python dependencies
+# Ensure requirements.txt contains:
+# fastapi[all]
+# yt-dlp
+# requests
+RUN pip install --pre --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application files
+# Make sure main.py and www.youtube.com_cookies.txt (if used) are in the build context
+COPY . .
+
+# Set permissions:
+# - Directories: read/execute for all, write for owner (755)
+# - Files: read for all, write for owner (644)
+# - Change ownership to the non-root user
+# Note: Explicit chmod for cookie file might be redundant if COPY respects source permissions, but doesn't hurt.
+RUN find /app -type d -exec chmod 755 {} \; && \
+    find /app -type f -exec chmod 644 {} \; && \
+    chown -R appuser:appuser /app
+
+# Switch to the non-root user
+USER appuser
+
+# Expose the port the app will run on (common for HF Spaces)
+EXPOSE 7860
+
+# Command to run the application using uvicorn
+# - main:app -> finds the 'app' instance in the 'main.py' file
+# - --host 0.0.0.0 -> makes the server accessible from outside the container
+# - --port 7860 -> matches the EXPOSE directive
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]