How to use this box with Vagrant:
Vagrant.configure("2") do |config|
config.vm.box = "SaltwaterC/centos-7.3"
config.vm.box_version = "7.3.1611-20170905"
end
vagrant init SaltwaterC/centos-7.3 \
--box-version 7.3.1611-20170905
vagrant up
This version was created over 6 years ago.
Latest CentOS 7.3 at the time of build - now with a 40G root drive