How to install virtualbox on the centos | docker-machine need the driver of virtualbox

cd /etc/yum.repos.d/; wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo

yum serach vitualbox;

yum install virtualbox

yum install -y VirtualBox-5.2.x86_64
 

How to install docker-machine

wget -P /usr/local/bin https://github.com/docker/machine/releases/download/v0.15.0/docker-machine-$(uname -s)-$(uname -m);

mv docker-machine-$(uname -s)-$(uname -m) docker-machine;

chmod +x docker-machine