Extending Kubernetes

External

• https://kubernetes.io/docs/concepts/extend-kubernetes/extend-cluster/

Internal

• Kubernetes Development
• Kubernetes Concepts

Kubernetes Aggregation Layer

Kubernetes Aggregation Layer

Kubernetes Custom Resources

Custom Resources

Differences between Custom Resources and Extension API Servers

• An extension API server can use different storage APIs rather than etcdv3
• Extends long-running subresources/endpoints like websocket for your own resources
• Integrates your apiserver with whatever external systems

Operator Pattern

• https://kubernetes.io/docs/concepts/extend-kubernetes/operator/