Effective Docker and Kubernetes for Java EE Developers
summary
Demonstrates building Java EE images (WebSphere Liberty, OpenJDK) and a Postgres PV, pushing versioned images to Docker Hub, and deploying on GKE where two replicas become three then scale to one; image builds exploit layered Docker caching so only the changed WAR moves, compares thin WAR vs uber JAR vs hollow uber-JAR trade-offs for image size and rebuild cost, and shows a GKE HTTP load balancer auto-wired to the service; everything deploys and serves requests within minutes.
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chapters (9)
- 0:00Session introduction
- 2:07Java EE application overview
- 5:43Dockerizing the application
- 10:12Thin war approach
- 14:58Uber jar approach
- 20:18Docker strategy tradeoffs
- 25:00Kubernetes infrastructure
- 33:20Pushing images to Docker Hub
- 37:10Deploying on Kubernetes
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