The absolute nightmare of cloud migration when you inherit a legacy codebase

Started helping out a local manufacturing company with their tech infrastructure last week and man, I underestimated how bad legacy corporate setups could get. The previous developers built this massive, sprawling web application back in 2018 and just left it running on an ancient, unmanaged on-premise server in a literal supply closet. No documentation, zero containerization, just pure vibes and spaghetti code. Management decided they want everything moved to t