How to fix “dial unix /var/run/docker.sock: connect: permission denied” when group permissions seem correct?

Question

I\'m suddenly having issues after an update of Ubuntu 18.04: previously I\'ve used docker without issue on the system, but suddenly I cannot. As far as I can tell, the permissio

Answer 1

sudo setfacl --modify user::rw /var/run/docker.sock

It doesn't require a restart and is more secure than usermod or chown.

as @mirekphd pointed out, the user ID is required when the user name only exists inside the container, but not on the host.