How to Use Kubernetes CRDs

Kubernetes CRDs

Custom resources (CRDs) are an efficient way of extending Kubernetes APIs, allowing us to make customized and declarative APIs. When we create a new CRD API, the kube-apiserver will create a new RESTful handler for each specified version. We’ll demonstrate this shortly. The CRD can define either namespaced or cluster-scoped APIs, as specified in the field spec.scope.

Now, let’s get started on how to use CRDs in Kubernetes.

Create a custom resource

The development environment in which we can add and modify our programs is given below. We can click the “Run” button to initialize it.

In the crd.yml ...