sudo dockerd code example
Example 1: 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
Example 2: start service docker on linux
sudo systemctl start docker service
sudo systemctl stop docker service