Lucee on ubuntu with docker: its admin pwd inaccessible

how can i reset it?

i was searching for relevant conf xml file in the following two directories:
/usr/local/tomcat
/opt/lucee/server/

then, one issue is, I can only access these two directories inside a shell
and then, when i attempted to edit an xml file (regardless of which one for editing sake) with
~nano server.xml
i received permission denied error.
same error for
~sudo nano server.xml

so, two questions,
(a) which xml to edit to reset pwd?
(b) how to edit it with permission?

thanks.

According to https://hub.docker.com/r/lucee/lucee there should be no password set for a new container.

indeed the very first time access of the admin it didn’t require pwd, upon setting up a pwd and accessing it again, the pwd didn’t work.

Version?

never mind, i’m putting this guy on hold for now.