cd debian-8
packer build debian-amd64.json
vagrant box add debian-8.9.0-amd64_virtualbox-iso_virtualbox.box --name local/debian-8.9.0-amd64
cd debian-9
packer build debian-amd64.json
vagrant box add debian-9.2.0-amd64_virtualbox-iso_virtualbox.box --name local/debian-9.2.0-amd64
cd debian-10
packer build debian-amd64.json
vagrant box add debian-10.2.0-amd64_virtualbox-iso_virtualbox.box --name local/debian-10.2.0-amd64