Lucee on docker: lost admin password

I have installed a docker lucee 4.x image on a Ubuntu 16.04 box, it is running fine but I lost the admin password.

The Dockerfile reads:

FROM lucee/lucee4:latest
COPY www /var/www

Justin Carter shared an insight to set Lucee admin password.
URL: Lucee on Docker - Setting Defaults


COPY lucee-server.xml 
COPY lucee-web.xml.cfm /opt/lucee/web/lucee-web.xml.cfm

If I add his code to my Dockerfile file and then restart the Lucee instance,
would it reset the Lucee admin?