- add script and Vagrantfile code to preseed salt minion keys
- add needed bootstrap_options for Python 3 support
- add grains files and populate those of the ldap and web node
- add script to fix systemd-networkd setup with Debian libvirt Vagrant
images
- switch from VirtualBox to libvirt
This commit performs salt provisioning setup by adding salt master to
the salt VM and salt minion to all VMs. An /etc/hosts entry for the salt
master is added using a shell provisioner. No salt executions are
performed yet.