Modernize and Automate your Java Application for Kubernetes

on YouTube ↗38m

" summary

Shows how to turn legacy Tomcat into a Kubernetes-native service by adding two CRDs tomcat and webapp and implementing a tomcat operator with java-operator-sdk (fabric8 client). Operator creates Deployments and Services, watches readiness to set readyReplicas in status, supports create/update/delete, downloads WARs into containers via wget, scales from 2 to 3 replicas and rolls Tomcat 9→8, and successfully serves two webapps through a GKE load balancer IP.

AI-written summary · about

" chapters (13)

1. 0:00Modernizing Java for K8s
2. 1:17Limitations of standard deploys
3. 2:28Custom resources explained
4. 3:57The role of an operator
5. 5:14Building Java operators
6. 6:52Registering custom resources
7. 9:41Implementing the controller
8. 12:20Adding automation logic
9. 15:33Handling updates and deletes
10. 19:11Providing resource status
11. 23:15Deploying web applications
12. 27:08Operator potential and wrap-up
13. 30:40Q&A session

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