cannot run docker as non-privileged user. I added user to docker group with:
sudo groupadd -a -G docker $USER
I loggeg out and in again, still no success. I am running docker on a Ubuntu 21.10 system.
1 Answer
When you use "sudo" you are forking a new process as "root". So the $USER variable will be "root" and not your user.
Replace the $USER by the name of the user you are trying to add privileges.
sudo groupadd -a -G docker username_here
Finally, logout and login again, start a new terminal session and run "id" to check if the user now belongs to the docker group.
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No, that’s not the cause. At the time the
sudoprocess is started, the variable$USER, which is shell-specific, has already been replaced with its value. It’s certainly true that the environment variables change, butgroupadddoes not use these.– Daniel BJan 11, 2022 at 8:08 -
Thanks for the explanation Daniel. I felt this was not right in the minute that I finished writing it hahah Jan 12, 2022 at 0:39
idto check whether that actually worked. Also please provide the entire error message you get when trying to rundocker run --rm -it hello-world.