StorageClass
also: Storage Class
A Kubernetes resource that defines the provisioning and management parameters for persistent storage volumes, determining how storage is allocated and configured when pods request it.
StorageClass is a Kubernetes abstraction that describes different tiers or types of storage available in a cluster and how volumes should be provisioned. It acts as a template that specifies the storage backend (such as AWS EBS, NFS, or local storage) and parameters like replication policy, encryption settings, and deletion behavior.
When a developer creates a PersistentVolumeClaim (PVC) referencing a StorageClass, Kubernetes automatically provisions the appropriate storage resource with the specified characteristics. For example, a StorageClass might define fast SSD storage with RAID-1 protection, while another defines slower but cheaper network storage for backups.
Example: A cluster administrator creates a StorageClass named fast-ssd that provisions AWS EBS volumes with SSD type. When an application requests storage via PVC with storageClassName: fast-ssd, Kubernetes automatically creates an EBS SSD volume and attaches it to the pod.