Update Dockerfile

Dockerfile

@@ -33,7 +33,8 @@ RUN if [ -z "$USER_ID" ]; then \
 RUN usermod -aG sudo appuser
 
 # Set appropriate permissions for the application directory
-RUN chown -R "$USER_ID:$USER_GROUP" /app && chmod -R 755 /app
+RUN chown -R appuser:appuser /app && chmod -R 755 /app
+RUN chown -R appuser:appuser /tmp
 
 # Install gosu (adjust the package manager based on your base image)
 RUN apt-get update && apt-get install -y gosu && rm -rf /var/lib/apt/lists/*
@@ -43,7 +44,7 @@ COPY entrypoint.sh /usr/local/bin/entrypoint.sh
 RUN chmod +x /usr/local/bin/entrypoint.sh
 
 # Switch to the user for improved security
-USER "$USER_ID:$USER_GROUP"
+USER appuser
 
 # Define the entrypoint script to handle user creation and application startup
 ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]