CCE Container Storage (Everest)

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"
      }
    }
  }
}

Parent Topic: Add-on Instance Parameters

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