How to install new packages into non-root Docker Container?

Question

I\'m trying to extend a docker container for SOLR. I just want to install vim into it. But when I run the docker build it complains that I\'m not root.

This

Answer 1

Similar suggestion to the previous answer https://stackoverflow.com/a/37615312/2200690, open an interactive shell as the root user and then install your packages using apt-get.

docker exec --user="root" -it  /bin/bash

install the package

apt-get install package