Greetings!

Great question. There is no “one size fits all” solution for this, but there are some common practices that can be applied relatively to your position. With that said, we do have a tutorial which can help to understand the theory about how one might go about it, assuming that the tutorial itself does not fit your use case (which it may or may not):

https://www.digitalocean.com/community/tutorials/migrate-your-current-vps-linode-rackspace-aws-ec2-to-digitalocean

Jarland