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CCE Container Storage (Everest)

Updated on 2024-11-06 GMT+08:00

Add-on Overview

The CCE Container Storage (Everest) add-on uses the Container Storage Interface (CSI) to link Kubernetes clusters with cloud storage services.

Add-on Parameters

Table 1 Parameters

Parameter

Mandatory

Type

Description

basic

No

object

Basic configuration parameters, which do not need to be specified

flavor

Yes

Table 2 object

Flavor parameters

custom

Yes

Table 3 object

Custom parameters

Table 2 Configuration of flavor

Parameter

Mandatory

Type

Description

description

No

String

Add-on description

name

Yes

String

Add-on specification name

replicas

Yes

String

Number of pods. The default value is 1.

resources

Yes

resources object

Container resource (CPU and memory) quotas

Table 3 Configuration of custom

Parameter

Mandatory

Type

Description

default_vpc_id

Yes

String

VPC ID

cluster_id

Yes

String

Cluster ID

cluster_name

Yes

String

Cluster name

project_id

Yes

String

Project ID

disable_auto_mount_secret

No

bool

Whether to allow the default AK/SK to be used during OBS volume mounting

Default value: false

over_subscription

No

String

Local PV overcommitment ratio

Default value: 80

csi_attacher_detach_worker_threads

No

String

The number of concurrent workers for detaching volumes

Default value: 60

volume_attaching_flow_ctrl

No

String

Attaching flow control data

Default value: 0.

number_of_reserved_disks

No

String

Disk attaching capability reserved for non-container scenarios

Default value: 6

flow_control

No

Map<String>string

Flow control parameter

Default value: {}

enable_node_attacher

No

bool

Whether to start agent attacher

Default value: false

multiAZEnabled

No

bool

Whether to enable the forcible mode of multi-AZ deployment for the deployment component. The default value is false. Deployment pods of the add-on will be forcibly scheduled to nodes in different AZs. If there are fewer AZs than pods, the extra pods will fail to run. If both multiAZEnable and multiAZBalance are set to true, the settings of multiAZBalance take effect, which means, the equivalent mode of multi-AZ deployment is used.

multiAZBalance

No

bool

Whether to enable the equivalent mode of multi-AZ deployment for the deployment component. The default value is false. Deployment pods of the add-on are evenly scheduled to the nodes in the cluster in each AZ. If a new AZ is added, it is recommended that you increase add-on pods for cross-AZ HA deployment. With the equivalent multi-AZ deployment, the difference between the number of add-on pods in different AZs will be less than or equal to 1. If resources in one of the AZs are insufficient, pods cannot be scheduled to that AZ.

tolerations

No

Array of Table 5

Toleration configuration

node_match_expressions

No

Array of Table 6

Add-on pod affinity configuration

Table 4 Data structure of the resources field

Parameter

Mandatory

Type

Description

limitsCpu

Yes

String

CPU size limit (unit: m)

limitsMem

Yes

String

Memory size limit (unit: Mi)

name

Yes

String

Add-on name. The value is fixed at everest-csi-controller or everest-csi-driver.

requestsCpu

Yes

String

Requested CPU size (unit: m)

requestsMem

Yes

String

Requested memory size (unit: Mi)

Table 5 Taints and tolerations

Parameter

Mandatory

Type

Description

key

No

String

Taint key

effect

No

String

Taint policy

operator

No

String

Operator

tolerationSeconds

No

Int

Toleration time window

Table 6 nodeMatchExpresssion node affinity

Parameter

Mandatory

Type

Description

key

No

String

Taint key

values

No

List<String>

Node affinity name

operator

No

String

Operator

Example Request

{
  "kind": "Addon",
  "apiVersion": "v3",
  "metadata": { "annotations": { "addon.install/type": "install" } },
  "spec": {
    "clusterID": "cea63ae5-df9b-11ee-9f27-0255ac1001b2",
    "version": "2.4.4",
    "addonTemplateName": "everest",
    "values": {
      "basic": {
        "bms_url": "bms.***.com",
        "driver_init_image_version": "2.4.4",
        "ecsEndpoint": "https://ecs.***.com",
        "everest_image_version": "2.4.4",
        "evs_url": "evs.***.com",
        "iam_url": "iam.***.com",
        "ims_url": "ims.***.com",
        "obs_url": "obs.***.com",
        "platform": "linux-amd64",
        "sfs30_url": "obs.***.com",
        "sfs_turbo_url": "sfs-turbo.***.com",
        "sfs_url": "sfs.***.com",
        "supportHcs": false,
        "swr_addr": "swr.***.com",
        "swr_user": "hwofficial",
        "rbac_enabled": true,
        "cluster_version": "v1.23"
      },
      "flavor": {
        "description": "High avaiable",
        "is_default": true,
        "name": "HA50",
        "recommend_cluster_flavor_types": ["small"],
        "replicas": 2,
        "resources": [
          {
            "limitsCpu": "250m",
            "limitsMem": "600Mi",
            "name": "everest-csi-controller",
            "requestsCpu": "250m",
            "requestsMem": "600Mi"
          },
          {
            "limitsCpu": "300m",
            "limitsMem": "300Mi",
            "name": "everest-csi-driver",
            "requestsCpu": "300m",
            "requestsMem": "300Mi"
          }
        ],
        "category": ["CCE", "Turbo"]
      },
      "custom": {
        "annotations": {},
        "cluster_id": "",
        "cluster_name": "",
        "csi_attacher_detach_worker_threads": "60",
        "csi_attacher_worker_threads": "60",
        "default_vpc_id": "",
        "disable_auto_mount_secret": false,
        "enable_node_attacher": false,
        "flow_control": {},
        "multiAZBalance": false,
        "multiAZEnabled": false,
        "node_match_expressions": [],
        "number_of_reserved_disks": "6",
        "over_subscription": "80",
        "project_id": "",
        "tolerations": [
          {
            "key": "node.kubernetes.io/not-ready",
            "operator": "Exists",
            "effect": "NoExecute",
            "tolerationSeconds": 60
          },
          {
            "key": "node.kubernetes.io/unreachable",
            "operator": "Exists",
            "effect": "NoExecute",
            "tolerationSeconds": 60
          }
        ],
        "volume_attaching_flow_ctrl": "0"
      }
    }
  }
}

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