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====== Docker - Allow docker to be run without using sudo ======

===== Add current user to the docker group =====

<code bash>
sudo usermod -aG docker $USER
</code>

<WRAP info>
**NOTE:**  This allows docker to be run without using sudo.

To enable this functionality, log out and log back in; or run: <code bash>
newgrp docker
</code>

</WRAP>

----

===== Add a specific user to the docker group =====

==== Determine the username ====

<code bash>
whoami
</code>

returns:

<code>
peter
</code>

----

==== Add this user to the docker group ====

<code bash>
sudo usermod -aG docker peter
</code>

<WRAP info>
**NOTE:**  Any user can be added to the docker group as required.
</WRAP>


----

==== Enable this functionality ====

Either log out and log back in; or run: <code bash>
newgrp docker
</code>

----

===== Verify that docker commands can be run without sudo =====

<code bash>
docker run hello-world
</code>

<WRAP info>
**NOTE:**  If an error is seen such as **docker: Got permission denied while trying to connect to the Docker daemon socket**, then:

<code bash>
sudo chmod 666 /var/run/docker.sock
</code>

</WRAP>

----