Demystifying k8s operators
summary
Explains how an operator is literally a CRD + controller = operator that watches custom resources and enforces desired state, with a real MySQL cluster example that creates PVCs pods secrets and re-creates missing replicas when count drifts. Shows the control plane pieces (API server watchers, reconciliation loop) and practical tool paths: build operators with Kubebuilder / Operator SDK in Go or with Ansible, mentions finalizers and lifecycle manager, and demonstrates the operator running and reconciling in-cluster.
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chapters (6)
- 0:00Kubernetes introduction
- 1:51Control plane and data plane
- 5:04What are Operators?
- 8:03How Operators work
- 10:07Operator lifecycle
- 13:01Deploying and using Operators
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