Jenkins container 2 ports

[kvbr999]

when docker container for jenkins is created, there are two ports, I can see. why two ports for application. Is that some applications need more than one port?

[ramjagadeeshkumar]

jenkins image listens on 8080, and I'd like to run more than one service whose image listens on 8080, so I'd like to do:

ports:

• 8081:8080 but any remapping of the ports at the service level

Do n't need multiple port for any application