Update Dockerfile

Dockerfile

@@ -23,6 +23,10 @@ COPY start.sh /start.sh
 RUN chown -R user:user /var/lib/nginx /var/log/nginx /var/www/html /start.sh
 RUN chmod +x /start.sh
 
+# Setup symlink to use /data instead of /app
+RUN mkdir /data && chown user:user /data
+RUN ln -s /data /app
+
 # Switch back to the non-root user for running applications
 USER user
 ENTRYPOINT ["/start.sh"]