Dockerizing Spring Boot (Because "It Works on My Machine" Isn’t Enough)
“It works on my machine” stops being funny the moment it has to run on someone else’s. Dockerizing a Spring Boot app gives you one artifact that runs identically on your laptop, in CI, and on Kubernetes or AWS — same JDK, same dependencies, same behavior. The trick is doing it so the image is small, secure, and cached well, not a 600 MB blob that rebuilds from scratch on every code change. Here’s the approach I actually use. ...