Update Dockerfile

Dockerfile

@@ -1,19 +1,21 @@
-# Use the prebuilt image as the base
 FROM ghcr.io/remsky/kokoro-fastapi-cpu:v0.2.0post3
 
-# Install socat (if not already available)
-# For Debian/Ubuntu–based images:
+# Switch to root so we can install packages
+USER root
+
 RUN apt-get update && apt-get install -y socat && rm -rf /var/lib/apt/lists/*
 
-# Set a default PORT in case Spaces doesn’t inject one (Spaces usually will)
-ENV PORT=8880
+# Optionally, switch back to the original non-root user if needed.
+# Replace "appuser" with the appropriate username if known.
+# USER appuser
 
-# Expose the port that Spaces will use
+# Set environment variables and expose the port
+ENV PORT=8880
 EXPOSE ${PORT}
 
-# Copy in a startup script
+# Copy the startup script that forwards the dynamic port to port 8880
 COPY start.sh /start.sh
 RUN chmod +x /start.sh
 
-# Use our startup script as the container’s command
+# Start the wrapper script
 CMD ["/start.sh"]