For those who get the next error when attempting to run a Docker container:
Can't hook up with the Docker daemon at unix:/var/run/docker.sock. Is the docker daemon working?
Then you may resolve it by working the next:
systemctl begin docker
If this doesn’t work due to a root person situation, then you are able to do the next first:
gpasswd -a $USER docker
Extra points?
Situation 1
In case you have tried the above, and get this error:
Failed to begin docker.service: Unit docker.service is masked.
Then you may remedy it as follows:
systemctl unmask docker.service
systemctl unmask docker.socket
systemctl begin docker.service
Situation 2
You’ll be able to nonetheless can’t get round this, then attempt to use the docker daemon service itself:
sudo dockerd
