#PoC.
vagrant --custom-option=10.10.10.10 up
https://ruby-doc.org/stdlib-2.1.3/libdoc/getoptlong/rdoc/GetoptLong.html https://gist.github.com/ruanbekker/38a38aea5f325f7fa4a19e795ef4f0d0
ssh -i .vagrant/machines/master/virtualbox/private_key vagrant@10.10.10.10
ssh -i .vagrant/machines/slave/virtualbox/private_key vagrant@10.10.10.11
venv/bin/python3
vagrant resume
vagrant box add kube_base kube_base.box
vagrant package --base kube_master --output kube_base.box