That sounds pretty fragile though. It seems like it's grabbing a specific version of the cloud-init package from the Debian repos.
Hopefully no serious bug(s) are found in that specific version of the package over time, as it's unlikely the standard package updates on your system will ever have updates for it.
Hopefully no serious bug(s) are found in that specific version of the package over time, as it's unlikely the standard package updates on your system will ever have updates for it.