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Dong, Qiu Jian b05d81fd8b CCE UMN for 1.23 reuploaded -20221103 
Reviewed-by: gtema <artem.goncharov@gmail.com>
Co-authored-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
Co-committed-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
2022-11-10 19:50:29 +00:00

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(kubectl) Automatically Creating an EVS Disk

Scenario

CCE supports creating EVS volumes through PersistentVolumeClaims (PVCs).

Prerequisites

You have created a CCE cluster and installed the FlexVolume plug-in (storage-driver) in the cluster.

Notes and Constraints

The following configuration example applies to clusters of Kubernetes 1.13 or earlier.

Procedure

  1. Use kubectl to connect to the cluster. For details, see Connecting to a Cluster Using kubectl.
  2. Run the following commands to configure the pvc-evs-auto-example.yaml file, which is used to create a PVC.

    touch pvc-evs-auto-example.yaml

    vi pvc-evs-auto-example.yaml

    Example YAML file for clusters of v1.9, v1.11, and v1.13:
    apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-evs-auto-example
  namespace: default
  annotations:
    volume.beta.kubernetes.io/storage-class: sas
  labels:
    failure-domain.beta.kubernetes.io/region: eu-de
    failure-domain.beta.kubernetes.io/zone: eu-de-01
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi
    Table 1 Key parameters

    Parameter

    Description

    volume.beta.kubernetes.io/storage-class

    EVS disk type. The value is in lowercase.

    Supported values: Common I/O (SATA), High I/O (SAS), and Ultra-high I/O (SSD)High I/O (SAS) and Ultra-high I/O (SSD)

    failure-domain.beta.kubernetes.io/region

    Region where the cluster is located.

    For details about the value of region, see Regions and Endpoints.

    failure-domain.beta.kubernetes.io/zone

    AZ where the EVS volume is created. It must be the same as the AZ planned for the workload.

    For details about the value of zone, see Regions and Endpoints.

    storage

    Storage capacity in the unit of Gi.

    accessModes

    Read/write mode of the volume.

    You can set this parameter to ReadWriteMany (shared volume) and ReadWriteOnce (non-shared volume).

  3. Run the following command to create a PVC.

    kubectl create -f pvc-evs-auto-example.yaml

    After the command is executed, an EVS disk is created in the partition where the cluster is located. Choose Storage > EVS to view the EVS disk. Alternatively, you can view the EVS disk based on the volume name on the EVS console.