StatefulSet best practices

This section summarizes known best practices when working with StatefulSet objects in Kubernetes. The list is by no means complete, but is a good starting point for your journey with Kubernetes.

Use declarative object management for StatefulSets

It is a good practice in DevOps world to stick to declarative models for introducing updates to your infrastructure and applications. Using the declarative way of updates is the core concept for paradigms such as Infrastructure-as-Code and Configuration-as-Code. In Kubernetes, you can easily perform declarative updates using the kubectl apply command, which can be used on a single file or even a whole directory of YAML manifest files.

Tip

To delete objects, it is still better to use imperative commands. It is more predictable and less prone to errors. The declarative deletion of resources in the cluster is useful only in CI/CD scenarios, where the whole process is entirely automated.

The same principle...