install docker on fedora 21 - and run hello world

install docker on fedora 21 - and run hello world

in fedora 21

https://docs.docker.com/installation/fedora/

as root

yum -y install docker-io

yum -y update docker-io

systemctl start docker

 systemctl enable docker

 docker run -i -t fedora /bin/bash  ### I can't do this as root, or I get errors

 usermod -a -G docker michael

then logon as michael and run

docker run -i -t fedora /bin/bash

then run

 
docker run fedora /bin/echo 'Hello world'

that's my first hello to the Docker