Custom resources (CR) is an excellent feature introduced in Kubernetes 1.7

Before understanding Custom resources, let's first understand resources in Kubernetes.

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A resource is an endpoint in Kubernetes API that allows you to store an API object of any kind.

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There are many default resources available in Kubernetes, some of them are: 1. deployment 2. pods 3. replicaSet 4. service

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Custom resource(CR) are the resources that are by default not present in the Kubernetes cluster.

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Kubernetes Custom Resource helps us to create and use the resources like any other native Kubernetes resource.

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Users need to have admin access to a Kubernetes cluster to create a custom resource(CR)

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To create a CR, the user needs to write the custom resource definition in a yaml file.

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Click to learn more

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