Managing IAM permissions at the KeyRing level is more efficient and scalable compared to managing them at the individual Key level. By creating a single KeyRing and placing all encryption keys within it, you can apply uniform IAM permissions to the entire KeyRing, simplifying the management of permissions.
Steps:
* Create a KeyRing: Set up a single KeyRing in Cloud KMS for all the encryption keys required for the persistent disks.
* Create Encryption Keys: Generate the necessary encryption keys within this KeyRing.
* Set IAM Permissions: Assign IAM roles and permissions to the KeyRing to manage access control at this level, ensuring that all keys within the KeyRing inherit these permissions.
References:
* Google Cloud: Cloud Key Management Service (KMS)
* Managing access to resources