Pre-install Jenkins plugins using Docker image

If I have a jenkins docker image:

FROM jenkins/jenkins:lts

is there a way to pre-install certain plugins using the Docker image, for example all the bitbucket plugins:

I assume we'd probably have to unpack some tars to the filesystem somewhere like so:

FROM jenkins/jenkins:lts

 USER root

 WORKDIR /jenkins/main/dir

 RUN tar -xvf some-jenkins-plugins.tar

This seems to be the right idea: https://stackoverflow.com/questions/29328278/installing-jenkins-plugins-to-docker-jenkins/29328489#29328489

so in the Dockerfile you'd just use:

COPY plugins.txt /usr/share/jenkins/plugins.txt
RUN /usr/local/bin/install-plugins.sh < /usr/share/jenkins/plugins.txt

I tried it and it worked for me.

StackExchange DevOps Q#8037, answer score: 2