See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Define the CRD:
- First, you need to define your CRD using a YAML file. This file will outline the schema and properties of your custom resource. For example:

2. Create a Role and Roledinding: - To enforce authorization, you'll create a Role and ROIeBinding. The Role Will define the allowed actions, and the ROIeBinding Will associate this Role with specific users or groups. - Role: - Create a Role that allows only the necessary actions on the CRD. For example, if you only want users to read the CRD, define a Role that grants read access:

- RoleBinding: - Bind the Role to the users or groups you want to authorize. For example, bind the 'myapp-reader-role' to a specific user:

3. Apply the Resources: - Apply the CRD, Role, and Role3inding to your Kubernetes cluster using kubectl: bash kubectl apply -f crd.yaml kubectl apply -f role.yaml kubectl apply -f rolebinding.yaml 4. Test the Security' - Now, try creating a custom resource instance. Only the authorized users or groups will be able to create or modify instances of this CRD. - This configuration defines a custom resource that allows only authorized users to interact With it. - The Role grants specific permissions, and the RoleBinding links the Role to specific users or groups. - By defining appropriate roles and rolebindings, you can enforce granular access control on your custom resource and ensure only authorized users can create or modify CRD instances. ,