Make Jenkins run docker without sudo

Question

I would like to run Docker shell commands on Jenkins like:

docker ps

Is it possible to do it with out using any plugi

Answer 1

(Taken from this answer: https://askubuntu.com/a/477554)

If you run on Ubuntu and Jenkins runs directly on the host machine (i.e. not inside a Docker container):

Add the docker group if it doesn't already exist:

sudo groupadd docker

Add the user "jenkins" to the docker group:

sudo gpasswd -a jenkins docker

Restart the Docker daemon:

sudo service docker restart

Either do a newgrp docker or log out/in to activate the changes to groups.