A StorageClass is a Kubernetes resource that defines a category of storage, its provisioner, and the parameters used to create storage dynamically. It turns common storage needs into standard platform capabilities rather than requiring each team to manage underlying storage. section 7.4.5 section 8.4.1
A platform can begin with a small set of managed defaults. This implementation provides EBS and EFS classes for common persistent-volume-claim types, while deferring user self-service customization until demand justifies an operator or broader extension. section 7.4.5 section 8.4.1
AWS-backed default classes
The EBS class uses the EBS CSI provisioner, waits for the first consumer, permits volume expansion, and requests encrypted XFS io1 volumes. The EFS class uses the EFS CSI provisioner, an existing file system, access points, and PVC-based directory paths with unique directories. section 7.4.5
...
cat <<EOF > tpl/ebs-csi-storage-class.yaml
---
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
name: ${cluster_name}-ebs-csi-dynamic-storage
provisioner: ebs.csi.aws.com
volumeBindingMode: WaitForFirstConsumer
allowVolumeExpansion: true
Parameters:
csi.storage.k8s.io/fstype: xfs
type: io1
iopsPerGB: "50"
encrypted: "true"
EOF
cat <<EOF > tpl/efs-csi-storage-class.yaml
---
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
name: ${cluster_name}-efs-csi-dynamic-storage
provisioner: efs.csi.aws.com
parameters:
provisioningMode: efs-ap
fileSystemId: $eks_efs_csi_storage_id
directoryPerms: "700"
basePath: "/dynamic_storage"
subPathPattern: \${.PVC.namespace}/\${.PVC.name} #1
ensureUniqueDirectory: "true"
reuseAccessPoint: "false"
EOF
kubectl apply -f tpl/ebs-csi-storage-class.yaml
kubectl apply -f tpl/efs-csi-storage-class.yaml
Inspect the concrete StorageClass manifests and their provisioning parameters. section 7.4.5
