Operation description

You can call the RemoveHostsFromGroup operation to remove multiple hosts from an asset group at a time. If you no longer need to manage some hosts in an asset group, you can call this operation to remove the hosts from the asset group.

QPS limit

You can call this API operation up to 10 times per second per account. Requests that exceed this limit are dropped and you will experience service interruptions. We recommend that you take note of this limit when you call this operation.

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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

yundun-bastionhost:RemoveHostsFromGroup

delete

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the bastion host whose asset group you want to manage. Note You can call the DescribeInstances operation to query the bastion host ID.	bastionhost-cn-st220aw****
RegionId	string	No	The region ID of the bastion host whose asset group you want to manage. Note For more information about the mapping between region IDs and region names, see Regions and zones.	cn-hangzhou
HostGroupId	string	Yes	The ID of the asset group from which you want to remove hosts. Note You can call the ListHostGroups operation to query the asset group ID.	1
HostIds	string	Yes	The IDs of the hosts that you want to remove from the host group. Specify a JSON string. You can specify up to 100 host IDs. Note You can call the ListHosts operation to query the host IDs.	["1","2","3"]

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	EC9BF0F4-8983-491A-BC8C-1B4DD94976DE
Results	array<object>	The result of the call.
	object
Code	string	The return code that indicates whether the call was successful. Valid values: OK: The call was successful. UNEXPECTED: An unknown error occurred. INVALID_ARGUMENT: A request parameter is invalid. Note Make sure that the request parameters are valid and call the operation again. OBJECT_NOT_FOUND: The specified object on which you want to perform the operation does not exist. Note Make sure that the specified bastion host ID and host IDs are valid and call the operation again. OBJECT_AlREADY_EXISTS: The specified object on which you want to perform the operation already exists.	OK
Message	string	This parameter is deprecated.	None
HostGroupId	string	The ID of the asset group.	1
HostId	string	The ID of the host.	1

Examples

Success response

JSON format

{
  "RequestId": "EC9BF0F4-8983-491A-BC8C-1B4DD94976DE",
  "Results": [
    {
      "Code": "OK",
      "Message": "None",
      "HostGroupId": "1",
      "HostId": "1"
    }
  ]
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidParameter	The argument is invalid.	The argument is invalid.
500	InternalError	An unknown error occurred.	An unknown error occurred.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.