Cloud architecture modernization tools that actually reduce migration risk?
We have got a pretty sprawling aws setup that’s grown over the years. mix of ec2, some ecs, rds, lambdas everywhere, and a lot of manual iam. tagging is inconsistent, costs are creeping up, and every change feels like it could break something.
leadership wants us to modernize, move more toward eks, clean things up, maybe shift parts to serverless. but the risk is what’s worrying me.
Last time we touched a pipeline it broke prod for hours because of a dependency no one knew about. the hard part isn’t the target architecture, it’s not knowing what we might break along the way.
How did you approach this. what actually helped reduce risk when making these changes?