Ansible

ShinySpace's network and virtual machines are managed by Ansible - this allows quick and easy creation of new virtual machines, which then immediately get added to DHCP and DNS configurations. 

This means that each virtual machine will have it's own, permanent IP Address, which instantly gets added to DNS too to make both managing the VMs via SSH and adding them to various configuration files (such as in Webvm1) very simple and convenient.

Ansible also manages the SSH keys on all VMs - if the SSH keys need to be changed in any way, a single playbook can update all VMs so very little manual work is required.