docker - change default login user

Question

When I run

docker run -t -i centos /bin/bash

It always logins as root by default. Let's say I already have user "myuser", how do I configure to login as "myuser" by default?

Solution

To run as myuser you could simply use USER myuser in your Dockerfile, as written in the official docs.

Comments

[Tommy]

Oh snap! You're right. My fault in not looking at the documentation at first.

[Hi-Angel]

I might be misreading the docs, but Dockerfile seems to be used for assembling an image, not for running an existing one.