AWS EBS

AWS Elastic Block Store is an easy to use, high performance block storage at any scale. It helps in the easy deployment, management, and scaling of the most demanding and high-performance tenant workloads. AWS EBS also ensures availability with replication and durability.

Prerequisites

Palette requires the following IAM policies to be attached to the IAM role that is used to create the cluster:

• The AWS managed policy AmazonEBSCSIDriverPolicy.

• For AWS Key Management Service (KMS) encryption, refer to the KMS Encryption Policy section.

Versions Supported

1.12.x

• 1.12.0

1.10.x

• 1.10.0

1.8.x

• 1.8.0

1.5.x

• 1.5.1

KMS Encryption Policy

If you want to use KMS encryption, you must attach the following IAM policy to the Palette IAM role that is used to create the cluster.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "VisualEditor0",
      "Effect": "Allow",
      "Action": [
        "kms:GenerateDataKeyWithoutPlaintext",
        "kms:CreateGrant"
      ],
      "Resource": "*"
    }
  ]
}

Notable Parameters

Name	Supported Values	Default Value	Description
storageType	gp2, sc1, st1, io1	gp2	AWS Volume type to be used.
reclaimPolicy	Delete, Retain	Delete	Defines whether volumes will be retained or deleted.
allowVolumeExpansion	true, false	true	Flag to allow resizing a volume.
isDefaultClass	true, false	true	Flag to denote if this StorageClass will be the default.
volumeBindingMode	WaitForFirstConsumer, Immediate	WaitForFirstConsumer	Controls when volumeBinding and dynamic provisioning should happen.
encrypted	true, false	true	Denotes whether the EBS volume should be encrypted or not.
kmsKeyId (optional)	The full Amazon Resource Name of the key to use when encrypting the volume.	--	If you don't provide the full Amazon Resource Name but encrypted is true, AWS generates a key.

You can view the full parameter list here.

Storage classes that Palette creates are named spectro-storage-class and can be fetched from kubectl using the following CLI command:

kubectl get storageclass --all-namespaces

References

• AWS EBS

• AWS EBS Storage Class Details