Building servers from External images

Hello DO Community

tldr; Can i import a external backup image, to then rebuild my Digital ocean server with this server image?

I’ve hit a small kinda wall where i have a server on another VPS Provider where I’ve create a new backup image of the server, that i then want to instal on my DO server.

The reason behind this I want almost 1:1 scenario because of some pen testing of the system and i would rather not do this up against the production server, i need to ensure that my Reverse Proxy setup is handling all the various “Attacks” correctly before it sends the requests to the DO Server.

Is this even possible I’ve done a bit of googling and I’ve only been able to see it possible with DO backup images and the one click apps.

Best Regards.