Every cloud migration story you'll read is a success story, told in retrospect, with the hard decisions neatly summarized as "we chose microservices and it worked." This talk is the version before the polish.
Over 10 years working with Java enterprise systems, I've been through three major cloud migrations — and watched two more fail from the inside. This talk shares the architectural decisions that never make it into the case studies: how to strangle a legacy Spring monolith without breaking production, why database decomposition is more dangerous than service decomposition, the exact point where microservices create more problems than they solve, how to handle the shared authentication state that your monolith has accumulated over a decade, and what "done" actually looks like when you have 200 services in Kubernetes