can't install sudo

[bryanlarsen]

Your Dockerfile doesn't install sudo, but it does create a sudoers file. This means that a subsequent apt-get install sudo will fail, even if installed with --assume-no.

[kriswill]

I haven't tried it, kind of busy right now, but can't you do:

USER root
RUN apt-get install -y --no-install-recommends sudo

to install sudo? also, why not just do USER root to do whatever RUN apt-get you need, and switch back to USER sane to start your process?

[bryanlarsen]

no, that conflicts on /etc/sudoers, and neither -y or --assume-no will get past it. --force-yes probably would, but that's not a good idea.

And I want sudo when I'm doing docker exec bash, not in my Dockerfile.

[kriswill]

@Globegitter should we install sudo? I'm not sure it's wise, or a reasonable default, but I can empathize with the desire to bash into your container and sudo install software.