Vault is a collection of configuration files aimed at building hardened images of common Operating Systems.
Installation:
Taking advantage of cloud-init, modify the following boot parameter: linux /casper/vmlinuz --- to be:
linux /casper/vmlinuz quiet autoinstall ds=nocloud\;s=https://raw.githubusercontent.com/nullNEU/vault/refs/heads/main/ubuntu-server-22-04-5/ ---
Note: The backslash escapes the semi-colon.