I'm exploring AWS Migration Factory for large-scale deployments but have some concerns. Specifically, when it sets up test or cutover servers, does this happen through CloudFormation? Our team primarily uses Terraform, and I'm aware that AWS might not support this directly. If we wanted to deploy instances without using CloudFormation, is that an option so we could import them later? Or is there a better strategy for deploying instances migrated with the MGN?
4 Answers
We've used MGN with Terraform for large-scale migrations. My suggestion is to set up a launch template that mirrors your Terraform stack and then import it into Terraform after the cutover. If you automate the whole end-to-end process, it'll save you a lot of hassle in the long run. Just a heads up, though—Migration Factory is gradually being phased out in favor of Migration Hub and MGN, so I wouldn't rely on it for the long term.
Yep, Migration Hub is the way to go these days.
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