Ubuntu install docker

https://docs.docker.com/install/linux/docker-ce/ubuntu/

https://docs.docker.com/install/linux/linux-postinstall/#manage-docker-as-a-non-root-user

 

Issues

1. $ docker run hello-world
docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.38/containers/create: dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.

https://techoverflow.net/2017/03/01/solving-docker-permission-denied-while-trying-to-connect-to-the-docker-daemon-socket/

$ sudo groupadd docker
$ sudo usermod -aG docker $USER
$ sudo reboot