Docker daemon socker error

docker-socket-error.md

Error - Docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock

This error is because present unprivileged user does not belong to the docker group.

So, you can do this:

$ sudo usermod -a -G docker [user]

You can check it was successful by doing grep docker /etc/group and see something like this:

docker:x:998:[user]

in one of the lines.

Then change your users group ID to docker:

$ newgrp docker

If required restart docker service

$ sudo service restart dockerd