CODEWITHSUNDEEP
ubuntudockersudo
jleeothon
jleeothon

Reputation: 3156

Creating a user in Ubuntu that can sudo (Dockerfile)

Using Ubuntu 16 plus Docker, can I create a user "myuser" that can use sudo when necessary?

My Dockerfile looks roughly like:

FROM ubuntu:16.04

RUN \
adduser --system --disabled-password myuser \
&& \
usermod -a -G sudo myuser

USER myuser
WORKDIR /home/myuser

I tried small variations on that, with e.g. --ingroup sudo in the adduser command.

However, I cannot get "myuser" to be able to run sudo. Instead I get sudo: command not found messages.

Upvotes: 1

Views: 2530

Answers (1)

anthony sottile
anthony sottile

Reputation: 70175

sudo is not a binary which is included by default in modern ubuntu docker images (mostly because it's usually unnecessary to run sudo inside of docker)

In order to get a sudo binary you need to install it from apt

RUN apt-get update && apt-get install -y --no-install-recommends sudo

Upvotes: 3

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