Mirror VPS and VM.

Greetings all.

I was wondering if anyone had a good way to mirror a VM to a VPS and vice versa?

I know that there must be a way to do it, but I googled around and didn't find anything that seemed straight forward.

I am a network engineer that uses Linux frequently, I can configure text files etc with some documentation, but I am not a full time sysadmin.

Ideally I would like to have 2 (or more) systems that are identical, except for the IP address. I would love to be able to spin up duplicate images of the VPS on the fly so I can test changes in the VM before implementation on the actual server itself.

Thanks for your thoughts in advance. If there is a better way to do things, please let me know.