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.

$ kubectl apply -f https://raw.githubusercontent.com/kubevela/kubevela/master/docs/examples/app-with-volumes/td-awsEBS.yaml

$ kubectl vela show aws-ebs-volume

+-----------+----------------------------------------------------------------+--------+----------+---------+

| NAME | DESCRIPTION | TYPE | REQUIRED | DEFAULT |

+-----------+----------------------------------------------------------------+--------+----------+---------+

| name | The name of volume. | string | true | |

| mountPath | | string | true | |

| volumeID | Unique id of the persistent disk resource. | string | true | |

| fsType | Filesystem type to mount. | string | true | ext4 |

| partition | Partition on the disk to mount. | int | false | |

| readOnly | ReadOnly here will force the ReadOnly setting in VolumeMounts. | bool | true | false |

+-----------+----------------------------------------------------------------+--------+----------+---------+

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

apiVersion: core.oam.dev/v1beta1

kind: Application

metadata:

name: app-worker

spec:

components:

- name: myworker

type: worker

properties:

image: "busybox"

cmd:

- sleep

- "1000"

traits:

- type: aws-ebs-volume

properties:

name: "my-ebs"

mountPath: "/myebs"

volumeID: "my-ebs-id"