Live Migration Demo of a WebSphere-based Java EE Monolith to Cloud Foundry
summary
Live, step‑by‑step migration of a 250k‑line Java EE monolith from WebSphere to Cloud Foundry, moving from full WebSphere to WebSphere Liberty using IBM’s Binary App Scanner to generate server.xml features, running on PCF Dev with the Community Liberty buildpack and finally on PCF on Azure. DB2 is replaced by Postgres, deployment uses ~2 GB RAM, startup drops from ~5 minutes to ~30 seconds, app handles ~1M requests/hour, and the strangler pattern is applied to begin extracting microservices.
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chapters (6)
- 0:00Introduction and setup
- 1:26Talk overview and background
- 3:55Application migration to Liberty
- 12:07Running on PCF Dev
- 21:21Migration to Azure Cloud Foundry
- 31:04Recap and Q&A
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