Exploring Stateful Microservices built with Open Liberty in Kubernetes
summary
Shows how to keep real session state using Open Liberty on Kubernetes by wiring concrete pieces: a live demo of a shopping-cart REST API running in dev mode, session persistence via JCache + Hazelcast, and traffic routed with nginx ingress. Explains Kubernetes primitives used for state: StatefulSet + PersistentVolume and sticky sessions, and compares transaction approaches with a Saga (choreography) using Kafka for event-driven compensation. Demo boots, responds to POST/GET, and the example artifacts and guides are provided for replication.
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chapters (19)
- 0:00Intro
- 1:20Title
- 3:35Stateful microservices
- 5:57What is Stateless
- 7:27Stateful vs Stable Computing
- 8:53Cloudless Stateful
- 9:05Stateful Database
- 15:49Stateful Beans
- 18:23Cloud Native
- 19:09What is Cloud Native
- 21:12Cloud Native 12Factor Application
- 27:09Techniques Mechanisms
- 28:52Cloud Native Infrastructure
- 34:53Saga Pattern
- 38:14Saga Example
- 42:44Reactive Systems
- 44:05Open Liberty
- 45:16Open Liberty Starter App
- 51:12Conclusion
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