DescribeClusterEvents API Overview for ACK Serverless - Container Service for Kubernetes - Alibaba Cloud - Container Service for Kubernetes

Cluster operations include creating or upgrading a cluster, creating a node pool, scaling out a node pool, and installing an addon. Call the DescribeClusterEvents operation to retrieve events that occurred in a specified cluster, including details such as the event level, reason, and time.

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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:DescribeClusterEvents

get

*Cluster

acs:cs:{#regionId}:{#accountId}:cluster/{#ClusterId}

None

Request syntax

GET /clusters/{ClusterId}/events HTTP/1.1

Path Parameters

Parameter	Type	Required	Description	Example
ClusterId	string	Yes	The cluster ID.	c82e6987e2961451182edacd74faf****

Request parameters

Parameter	Type	Required	Description	Example
page_size	integer	No	The number of entries per page. Valid values: 1 to 100. Default value: 50.	50
page_number	integer	No	The page number.	1
task_id	string	No		T-6823f946ffadbb0106****

Response elements

Element	Type	Description	Example
	object	The response body.
events	array<object>	The list of events.
	array<object>
event_id	string	The event ID.	e-9ad04f72-8ee7-46bf-a02c-e4a06b39****
type	string	The event type. Valid values: `cluster_create`: Creates a cluster. `cluster_scaleout`: Scales out a cluster. `cluster_attach`: Adds existing nodes to a cluster. `cluster_delete`: Deletes a cluster. `cluster_upgrade`: Upgrades a cluster. `cluster_migrate`: Migrates a cluster. `cluster_node_delete`: Removes a node. `cluster_node_drain`: Drains a node. `cluster_modify`: Modifies a cluster. `cluster_configuration_modify`: Modifies cluster control plane configurations. `cluster_addon_install`: Installs an addon. `cluster_addon_upgrade`: Upgrades an addon. `cluster_addon_uninstall`: Uninstalls an addon. `runtime_upgrade`: Upgrades the runtime. `nodepool_upgrade`: Upgrades a node pool. `nodepool_update`: Updates a node pool.	nodepool_update
source	string	The event source.	task
subject	string	The subject of the event.	npdd89dc2b76c04f14b06774883b******
time	string	The start time of the event.	2025-05-14T10:00:56+08:00
cluster_id	string	The cluster ID.	c82e6987e2961451182edacd74faf****
data	object	Additional information about the event.
level	string	The event level. Valid values: warning : A warning. error : An error. info : Informational.	info
reason	string	The event reason.	Started
message	string	A detailed message about the event.	Start to upgrade NodePool nodePool/npdd89dc2b76c04f14b06774883b******
next_token	string
page_info	object	The pagination information.
page_size	integer	The number of entries per page.	50
page_number	integer	The page number.	1
total_count	integer	The total number of entries.	126

Examples

Success response

JSON format

{
  "events": [
    {
      "event_id": "e-9ad04f72-8ee7-46bf-a02c-e4a06b39****",
      "type": "nodepool_update",
      "source": "task",
      "subject": "npdd89dc2b76c04f14b06774883b******",
      "time": "2025-05-14T10:00:56+08:00",
      "cluster_id": "c82e6987e2961451182edacd74faf****",
      "data": {
        "level": "info",
        "reason": "Started",
        "message": "Start to upgrade NodePool nodePool/npdd89dc2b76c04f14b06774883b******"
      }
    }
  ],
  "next_token": "",
  "page_info": {
    "page_size": 50,
    "page_number": 1,
    "total_count": 126
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.