Backup server lxd

Hi everyone, I have a production server that deploys services and websites using LXD. I’m creating an lxc container to host those websites and services. My current need is to build a backup server just like the current production server, including lxd, containers and resources. This can help me with emergency replacement when production server fails or power outage even load balancing if possible. Has anyone done this or have experience who can give me advice and guidance?. Maybe I need to bother you a bit @stgraber Thank you.