FROM vulhub/tomcat:8.5.19

LABEL maintainer="phithon <root@leavesongs.com>"

RUN cd /usr/local/tomcat/conf \
    && LINE=$(nl -ba web.xml | grep '<load-on-startup>1' | awk '{print $1}') \
    && ADDON="<init-param><param-name>readonly</param-name><param-value>false</param-value></init-param>" \
    && sed -i "$LINE i $ADDON" web.xml