Version: v1.0

Cloud Volumes

This section introduces how to attach cloud volumes to the component. For example, AWS ElasticBlockStore, Azure Disk, Alibaba Cloud OSS, etc.

Cloud volumes are not built-in capabilities in KubeVela so you need to enable these traits first. Let’s use AWS EBS as example.

Install and check the TraitDefinition for AWS EBS volume trait.

  1. $ kubectl apply -f https://raw.githubusercontent.com/oam-dev/kubevela/master/docs/examples/app-with-volumes/td-awsEBS.yaml
  1. $ kubectl vela show aws-ebs-volume
  2. +-----------+----------------------------------------------------------------+--------+----------+---------+
  3. |   NAME    |                          DESCRIPTION                           |  TYPE  | REQUIRED | DEFAULT |
  4. +-----------+----------------------------------------------------------------+--------+----------+---------+
  5. | name      | The name of volume.                                            | string | true     |         |
  6. | mountPath |                                                                | string | true     |         |
  7. | volumeID  | Unique id of the persistent disk resource.                     | string | true     |         |
  8. | fsType    | Filesystem type to mount.                                      | string | true     | ext4    |
  9. | partition | Partition on the disk to mount.                                | int    | false    |         |
  10. | readOnly  | ReadOnly here will force the ReadOnly setting in VolumeMounts. | bool   | true     | false   |
  11. +-----------+----------------------------------------------------------------+--------+----------+---------+

Then we can now attach a aws-ebs volume to a component.

  1. apiVersion: core.oam.dev/v1beta1
  2. kind: Application
  3. metadata:
  4.   name: app-worker
  5. spec:
  6.   components:
  7.     - name: myworker
  8.       type: worker
  9.       properties:
  10.         image: "busybox"
  11.         cmd:
  12.           - sleep
  13.           - "1000"
  14.       traits:
  15.         - type: aws-ebs-volume
  16.           properties:
  17.             name: "my-ebs"
  18.             mountPath: "/myebs"
  19.             volumeID: "my-ebs-id"