03 - Kubernetes Operators: CRD, Controller Pattern and Operator SDK in Practice

Operators encode operational knowledge as Kubernetes-native software. Learn how to build an Operator with Kubebuilder, design CRDs with OpenAPI schema, and implement the reconcile loop for managing PostgreSQL clusters.

What you'll learn

• Cos'e un Kubernetes Operator e quando ha senso costruirne uno
• Custom Resource Definition (CRD): schema, versioning, validation
• Il Controller Pattern e il Reconcile Loop
• Operator SDK vs Kubebuilder: differenze e quando usare quale
• Implementare un Operator completo con Kubebuilder

This article is part of the Kubernetes Avanzato series on federicocalo.dev.

Read the full article

The complete article (20 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 03 - Kubernetes Operators: CRD, Controller Pattern and Operator SDK in Practice

https://federicocalo.dev/en/blog/kubernetes-operators-crd-controller-pattern-operator-sdk-en

By Federico Calò — Software Developer & Technical Writer