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

docker ubuntu-18.04

sudo setfacl --modify user:<user name or ID>: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.

docker ubuntu-18.04

add the user to the docker group.

sudo usermod -aG docker $USERsudo reboot

docker ubuntu-18.04

Ubuntu 18:04

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

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