Answers for "sudo dockerd"

docker to sudoers

# my case solution
sudo setfacl -m user:$USER:rw /var/run/docker.sock

#other solution
sudo usermod -aG docker $USER

#an other solution
sudo groupadd docker
sudo gpasswd -a $USER docker
docker run hello-world

start service docker on linux

sudo systemctl start docker service
sudo systemctl stop docker service

docker daemon

dockerd