change

Dockerfile

 FROM tomcat:8-jdk8
-ARG WAR_LOCATION
 RUN rm -rf /usr/local/tomcat/webapps/* && \
     cd /usr/local/tomcat/webapps/ && \
     wget -O vip-room.tar "${WAR_LOCATION}" && \
     tar -xf vip-room.tar && \
     rm -f vip-room.tar & \
     chown -R 1000:1000 /usr/local/tomcat/webapps/
-
+USER 1000
 CMD ["/usr/local/tomcat/bin/catalina.sh", "run"]