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AWS Cost Optimization for Microservices: ECS vs EKS vs Lambda

The runtime question usually arrives disguised as a cost question: “our AWS bill is too high, should we move to serverless?” Almost always the honest answer is that the runtime is not the biggest line on the invoice — but the runtime decision does determine which levers you get to pull later, so it is worth making deliberately. This is the decision framework I use for Java services, and the levers that have moved real bills.

Monday, August 17, 2026 | 6 minutes Read
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Kubernetes Deployments for Java Microservices: Rolling, Blue/Green, and Canary

Not every change carries the same risk. A copy fix and a rewrite of the pricing logic do not need the same rollout mechanics, and treating them the same means you either move too slowly or find out about a regression from your users. This is how I pick between rolling updates, blue/green and canary for Java services — and the JVM-specific details that make all three behave differently than the tutorials suggest.

Monday, August 17, 2026 | 6 minutes Read
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Spring Boot Production-Ready Checklist (2026)

Shipping a Spring Boot service is easy. Keeping it fast, secure and operable at three in the morning is the hard part. This is the checklist I walk through before a rollout — condensed from services I have taken to production on Kubernetes over the last few years, currently on Spring Boot 4 and Java 25. It is deliberately not a list of everything you could do. It is the set of things whose absence has cost me, or a team I worked with, an incident.

Monday, August 17, 2026 | 7 minutes Read