Docker issues solved - Ubuntu 16.10

You might receive this error when trying to run any Docker command:

Cannot connect to the Docker daemon. Is the docker daemon running on this host?

The solution to this is to add yourself to the docker group by executing the following commands:

sudo groupadd docker

sudo gpasswd -a${USER} docker

sudo service docker restart

Restart your computer. Credit to Santosh

If you encounter the following error after adding yourself to the docker group:

Failed to start docker.service: Unit docker.service is masked.

You should execute the following commands:

systemctl unmask docker.service systemctl unmask docker.socket systemctl start docker.service

Docker can now be used as expected. Credit to Andy