Extending Knative for Fun and Profit
summary
Demonstrates using duck typing (partial schemas for typeMeta/objectMeta/status/spec) to write generic controllers and webhooks: a prototype image-cache controller reads any resource with a pod template and creates image-cache CRs for each image, and a mutating webhook called boom apps freezes configMap references by synthesizing JSON patches against the duck. Shows concrete code paths (dynamic client + typed informer, patch-from-diff) and proves the approach works across Deployments, DaemonSets, KNative Services and other with-pod resources.
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chapters (4)
- 0:00Introduction to Knative
- 21:29Duck typing in Knative
- 23:26Tools and techniques
- 28:55Extensibility and conclusion
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