Update Dockerfile

Dockerfile

@@ -12,7 +12,9 @@ RUN mkdir /data && chown user:user /data
 
 RUN sed -i 's/listen \(\[::\]:\)\?80 default_server;/listen \17860 default_server;/g' /etc/nginx/nginx.conf
 
-RUN cat /etc/nginx/nginx.conf
+RUN mkdir -p /var/lib/nginx/body && \
+    chown -R user:user /var/lib/nginx && \
+    chmod -R 755 /var/lib/nginx
 
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 # End root user section