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    Container Service for Kubernetes:DescribeEvents

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    Container Service for Kubernetes:DescribeEvents

    Last Updated:May 14, 2026

    Cluster operation events include cluster creation, cluster changes, node pool creation, node pool scale-out, add-on installation, and cluster upgrade. Use the DescribeEvents API to query details for a specific event type, including its level, status, and timestamp.

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    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:DescribeEvents

    get

    *All Resource

    *

    		 None None

    Request syntax

    GET /events HTTP/1.1

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    cluster_id

    string

    No

    The cluster ID.

    cf62854ac2130470897be7a27ed1f****
    type

    string

    No

    The event type. If you do not specify this parameter, events of all types are returned. Valid values:

    • cluster_create: Create a cluster.

    • cluster_scaleout: Scale out a cluster.

    • cluster_attach: Attach an existing node.

    • cluster_delete: Delete a cluster.

    • cluster_upgrade: Upgrade a cluster.

    • cluster_migrate: Migrate a cluster.

    • cluster_node_delete: Remove a node.

    • cluster_node_drain: Drain a node.

    • cluster_modify: Modify a cluster.

    • cluster_configuration_modify: Modify the control plane configuration of a cluster.

    • cluster_addon_install: Install an add-on.

    • cluster_addon_upgrade: Upgrade an add-on.

    • cluster_addon_uninstall: Uninstall an add-on.

    • runtime_upgrade: Upgrade the runtime.

    • nodepool_upgrade: Upgrade a node pool.

    • nodepool_update: Update a node pool.

    nodepool_upgrade
    page_size

    integer

    No

    The maximum number of results per page.

    Valid values: [1,100].

    Default: 50.

    50
    page_number

    integer

    No

    The number of the page to return.

    1
    next_token

    string

    No

    The pagination token. Set this parameter to the value of NextToken returned by the previous API call.

    5c0a1c0f91c14c6****
    max_results

    integer

    No

    The maximum number of results to return.

    10

    Response elements

    Element

    Type

    Description

    Example

    object

    The response body.

    events

    array<object>

    A list of events.

    array<object>

    The event object.

    event_id

    string

    The event ID.

    e-dba703c8-953b-40d8-82e8-cb713590****
    type

    string

    The event type. Valid values:

    • cluster_create: A cluster is created.

    • cluster_scaleout: A cluster is scaled out.

    • cluster_attach: An existing node is added.

    • cluster_delete: A cluster is deleted.

    • cluster_upgrade: A cluster is upgraded.

    • cluster_migrate: A cluster is migrated.

    • cluster_node_delete: A node is removed.

    • cluster_node_drain: A node is drained.

    • cluster_modify: A cluster is modified.

    • cluster_configuration_modify: The control plane configuration of a cluster is modified.

    • cluster_addon_install: An add-on is installed.

    • cluster_addon_upgrade: An add-on is upgraded.

    • cluster_addon_uninstall: An add-on is uninstalled.

    • runtime_upgrade: The runtime is upgraded.

    • nodepool_upgrade: A node pool is upgraded.

    • nodepool_update: A node pool is updated.

    nodepool_upgrade
    source

    string

    The source of the event.

    task
    subject

    string

    The object that the event is about.

    np6a5c86f4ecae436f8f4a3dc034a7****
    time

    string

    The event timestamp.

    2025-04-23T20:48:01+08:00
    cluster_id

    string

    The cluster ID.

    cf62854ac2130470897be7a27ed1f****
    data

    object

    The event details.

    level

    string

    The severity level of the event. Valid values:

    • info: An informational message.

    • warning: A warning.

    • error: An error.

    info
    reason

    string

    A brief, machine-readable string that describes the reason for the event.

    Started
    message

    string

    A human-readable description of the event.

    Start to upgrade NodePool nodePool/nodePool-A
    next_token

    string

    The token to retrieve the next page of results. If this parameter is absent from the response, all results have been returned.

    5c0a1c0f91c14c6****
    page_info

    object

    The pagination information.

    page_size

    integer

    The number of entries returned per page.

    50
    page_number

    integer

    The current page number.

    1
    total_count

    integer

    The total number of entries that match the query.

    3

    Examples

    Success response

    JSON format

    {
  "events": [
    {
      "event_id": "e-dba703c8-953b-40d8-82e8-cb713590****",
      "type": "nodepool_upgrade",
      "source": "task",
      "subject": "np6a5c86f4ecae436f8f4a3dc034a7****",
      "time": "2025-04-23T20:48:01+08:00",
      "cluster_id": "cf62854ac2130470897be7a27ed1f****",
      "data": {
        "level": "info",
        "reason": "Started",
        "message": "Start to upgrade NodePool nodePool/nodePool-A"
      }
    }
  ],
  "next_token": "5c0a1c0f91c14c6****",
  "page_info": {
    "page_size": 50,
    "page_number": 1,
    "total_count": 3
  }
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.