Cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial unix /var/run/docker.sock: connect: permission denied

ERRO[0000] failed to dial gRPC: cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial unix /var/run/docker.sock: connect: permission denied
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock

Solution

$> sudo usermod -aG docker <your-username>

$> reboot

$> sudo systemctl start docker

$> sudo docker run hello-world