Running scripts in a docker container

[Shamil Nunhuck]

Hi, I'm trying to build a docker image using kaniko in Bitbucket Server and I need to pass registry credentials to kaniko in order for it to push to the docker registry.

I see with other CI tools, I can run a script inside a docker container as part of the running of it. Is it possible to do the same with Bamboo?

Is it possible to override the entry point?

Thanks,