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CRDs allow teams to define custom declarative APIs. Operators combine CRDs with custom controllers (written in Go via `controller-runtime`) running reconciliation loops to automate complex database clusters, RPC nodes, or custom deployments.
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4. Custom Resource Definitions (CRDs) & Operators
Extending the Kubernetes control plane with custom controllers.
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1. What pattern combines a Custom Resource Definition with a Go reconciliation controller?
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