Installing yum docker package offline

#setup target VM, DONT use docker, the fakesystemd throws things off 

vagrant init bento/centos-7.1
vagrant ssh

#Add in your repo e.g:

sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF

#These resolve the RPMs to the current directory

sudo yum install -y yum-utils

yuminstaller --resolve docker-engine