CCE.Storage.EVS

Element Description

The CCE.Storage.EVS element corresponds to an Elastic Volume Service (EVS) disk under CCE storage management. This type of resources must be used together with CCE clusters.

Element Properties

**Table 1** Property Description
Property	Required	Descripiton
size	No	Storage space size, in GB. The default value is 80. Type: integer Default: 10 Value Constraint: From 1 to 511800. Suggestion: Set the value based on specifications and requirements.
availabilityZone	Yes	AZ where the node is located Type: HuaweiCloud.ECS.AvailabilityZone.Name Value Description: Indicates the AZ where the to-be-created ECS is located. The name of the AZ needs to be specified, for example, cn-north-1a. See the Regions and Endpoints. Value Constraint: The value varies depending on the belonged region. For details, visit https://developer-intl.huaweicloud.com/en-us/endpoint. Suggestion: Use the get_input function to pass this parameter. Its value can then be automatically selected when you create a stack on the AOS console. For details about the AZ of each region, visit https://developer-intl.huaweicloud.com/en-us/endpoint.
k8sManifest	No	K8s-native manifest object of the EVS, based on which you can create EVS resources to replace other configuration items Type: dict Value Constraint: The value must meet the Kubernetes specifications. Suggestion: For details, see the sample or CCE documentation.
name	No	Name of the CCE EVS file system, which is mounted to the container Type: string Value Constraint: The value contains 1 to 24 characters and must start with a letter and end with a digit. Only lowercase letters, digits, and hyphens (-) are allowed. The following regular specification must be met: (^$)\|(^[a-z]([-a-z0-9][a-z0-9])?$)". Suggestion:* None
clusterId	No	ID of the cluster which is associated with the SFS file system Type: HuaweiCloud.CCE.Cluster.Id Value Constraint: The value must satisfy the UUID rule and support a maximum of 64 characters. Suggestion: Enter the cluster ID. Specifically, log in to the CCE console, and choose Resource Management > Clusters. Click the target cluster, and you can then obtain its cluster ID. Connect to the cluster object and use the get_reference function to obtain the cluster ID.
volumeId	No	the existing volume id which need mount Type: string Value Description: Supports customization. Value Constraint: The value must satisfy the UUID rule and support a maximum of 64 characters. Suggestion: None
diskType	Yes	disk type Type: HuaweiCloud.EVS.Volume.Type.Name Value Description: Supports customization. Value Constraint: SATA: common I/O EVS disks; SAS: high I/O EVS disks; SSD: ultra-high I/O EVS disks Suggestion: None
deleteVolume	No	delete volume resource when delete pvc Type: boolean Default: False Value Constraint: Supports true false Suggestion: None
namespace	No	Namespace in a cluster where a resource is located Type: string Value Constraint: The value must start with a letter. Only lowercase letters, digits, and hyphens (-) are allowed. Suggestion: Log in to the CCE console, and choose Resource Management > Namespaces. View and select the target namespace.

Relationships Between Elements

**Table 2** Relationship description
Description	Target
DependsOn	AOS.Batch
DependsOn	DCS.Redis
DependsOn	RDS.MySQL
DependsOn	CCE.Storage.EVS
DependsOn	OBS.Bucket
DependsOn	CCE.Storage.SFS
DependsOn	CCE.ConfigMap
DependsOn	CCE.Job
DependsOn	CCE.Storage.OBS
DependsOn	CCE.DaemonSet
DependsOn	CCE.Secret
DependsOn	CCE.Service
DependsOn	CCE.Ingress
DependsOn	CCE.StatefulSet
DependsOn	CCE.NodePool
DependsOn	CCE.Deployment
DependsOn	CCE.Pod
DependsOn	RDS.PostgreSQL
ContainedIn	CCE.Cluster

Return Value

Property	Type	Description
status	string	Status of the EVS file system
clusterId	string	ID of the cluster which is associated with the EVS file system
refID	string	UID of the EVS file system
refName	string	Name of the EVS file system

Blueprint Example

Example 1:

tosca_definitions_version: huaweicloud_tosca_version_1_0
inputs:
  storage-name:
    default: my-evc-storage
  size:
    default: 100  
node_templates:
  my-storage:
    type: HuaweiCloud.CCE.Storage.EVS
    properties:
      name: {get_input: storage-name}
      size: {get_input: size}
      diskType: SATA

Example 2: Custom K8s Manifest for Orchestration

For clusters of version 1.15, the example configuration of the YAML file is as follows:

tosca_definitions_version: huaweicloud_tosca_version_1_0 
node_templates:
  my-storage:
    type: HuaweiCloud.CCE.Storage.EVS
    properties:
      apiVersion: v1
      kind: PersistentVolumeClaim
      metadata:
        labels:
          failure-domain.beta.kubernetes.io/region: cn-north-1
          failure-domain.beta.kubernetes.io/zone: cn-north-1a
        annotations:
          everest.io/disk-volume-type: SATA
        name: cce-evs-k7yigsvm-1nku
        namespace: default
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 10Gi
        storageClassName: csi-disk

For clusters of version 1.13 or earlier, the example configuration of the YAML file is as follows:

tosca_definitions_version: huaweicloud_tosca_version_1_0
node_templates:
  my-storage:
    type: HuaweiCloud.CCE.Storage.EVS
    properties:
      apiVersion: v1
      kind: PersistentVolumeClaim
      metadata:
        labels:
          failure-domain.beta.kubernetes.io/region: cn-north-1
          failure-domain.beta.kubernetes.io/zone: cn-north-1a
        annotations:
          volume.beta.kubernetes.io/storage-class: sata
          volume.beta.kubernetes.io/storage-provisioner: flexvolume-huawei.com/fuxivol
        name: cce-evs-k7yigsvm-1nku
        namespace: default
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 10Gi

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