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    Container Service for Kubernetes:ModifyClusterAddon

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    Container Service for Kubernetes:ModifyClusterAddon

    Last Updated:Aug 28, 2026

    Modifies the configuration of a cluster component. This operation may affect your businesses. We recommend that you assess the impact, back up data, and perform the operation during off-peak hours.

    Operation description

    You can call this API operation to modify the component parameters of an ACK Basic cluster or the control plane parameters of an ACK Pro cluster:

    After you call this operation, the component may be redeployed and restarted. We recommend that you assess the impact before you call this operation.

    Try it now

    Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

    Test

    RAM authorization

    The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

    • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

    • API: The API that you can call to perform the action.

    • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

    • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

      • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

      • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

    • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

    • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

    Action

    Access level

    Resource type

    Condition key

    Dependent action

    cs:ModifyClusterAddon

    update

    *Cluster

    acs:cs:{#regionId}:{#accountId}:cluster/{#ClusterId}
    • cs:AddonName
    • cs:AddonNames
    		 None

    Request syntax

    POST /clusters/{cluster_id}/components/{component_id}/config HTTP/1.1

    Path Parameters

    Parameter

    Type

    Required

    Description

    Example
    cluster_id

    string

    Yes

    The cluster ID.

    c71d616e629ff40d5b42d7bb87770****
    component_id

    string

    Yes

    The component ID.

    coredns

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    body

    object

    No

    The component configuration.

    config

    string

    No

    The custom parameter settings that you want to use.

    {"CpuRequest":"800m"}

    Set config to a JSON string.

    Response elements

    Element

    Type

    Description

    Example

    None defined.

    Examples

    Success response

    JSON format

    {}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.