DescribeManagedInstances - Elastic Compute Service - Alibaba Cloud Documentation Center

Queries managed instances.

Operation description

Usage notes

You can use one of the following methods to check the responses:

Method 1: During a paged query, when you call the DescribeManagedInstances operation to retrieve the first page of results, set MaxResults to specify the maximum number of entries to return in the call. The return value of NextToken is a pagination token, which can be used in the next request to retrieve a new page of results. When you call the DescribeManagedInstances operation to retrieve a new page of results, set NextToken to the NextToken value returned in the previous call and set MaxResults to specify the maximum number of entries to return in this call.
Method 2: Use PageSize to specify the number of entries to return on each page and then use PageNumber to specify the number of the page to return. You can use only one of the preceding methods. If you specify MaxResults or NextToken, the PageSize and PageNumber request parameters do not take effect and the TotalCount response parameter is invalid.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
ecs:DescribeManagedInstances	get	*Instance `acs:ecs:{#regionId}:{#accountId}:instance/{#instanceId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID. Supported regions: China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Hangzhou), China (Shanghai), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Chengdu), China (Hong Kong), Singapore, Japan (Tokyo), US (Silicon Valley), and US (Virginia). You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
OsType	string	No	The operating system type of the managed instance. Valid values: windows linux FreeBSD	windows
InstanceIp	string	No	The internal or public IP address of the managed instance.	192.168..
ActivationId	string	No	The ID of the activation code.	4ECEEE12-56F1-4FBC-9AB1-890F7494****
InstanceName	string	No	The name of the managed instance.	my-webapp-server
PageNumber	long	No	The page number. Pages start from page 1. Default value: 1.	1
PageSize	long	No	The number of entries per page. Valid values: 1 to 50. Default value: 10.	10
InstanceId	array	No	The ID of managed instance N. Valid values of N: 1 to 50.
	string	No	The ID of managed instance N. Valid values of N: 1 to 50.	mi-hz018jrc1o0****
Tag	array<object>	No	The tags of the managed instance.
	object	No	The tag of the managed instance.
Key	string	No	The key of tag N of the managed instance. Valid values of N: 1 to 20. The tag key cannot be an empty string. If a single tag is specified to query resources, up to 1,000 resources that have this tag added can be displayed in the response. If multiple tags are specified to query resources, up to 1,000 resources that have all these tags added can be displayed in the response. To query more than 1,000 resources that have specified tags added, call the ListTagResources operation. The tag key can be up to 64 characters in length and cannot start with `acs:` or `aliyun`. It cannot contain `http://` or `https://`.	TestKey
Value	string	No	The value of tag N of the managed instance. Valid values of N: 1 to 20. The tag value can be an empty string. The tag value can be up to 128 characters in length and cannot contain `http://` or `https://`.	TestValue
MaxResults	integer	No	The maximum number of entries per page. Valid values: 1 to 50. Default value: 10.	10
NextToken	string	No	The pagination token that is used in the next request to retrieve a new page of results. You must specify the token that is obtained from the previous query as the value of NextToken.	AAAAAdDWBF2****
ResourceGroupId	string	No	The ID of the resource group to which the managed instance belongs.	rg-123******

Response parameters

Parameter	Type	Description	Example
	object
PageSize	long	The number of entries per page.	10
RequestId	string	The request ID.	77115469-F2C5-4ECA-94F7-FA04F2FD****
PageNumber	long	The page number.	1
TotalCount	long	The total number of queried managed instances.	1
Instances	array<object>	The queried managed instances.
Instance	object
LastInvokedTime	string	The time when the last Cloud Assistant task was executed.	2021-01-20T09:00:40Z
Connected	boolean	Indicates whether the managed instance is connected. Valid values: true: The managed instance is connected. You can manage the instance by using Cloud Assistant. false: The managed instance is not connected. The managed instance may be down or Cloud Assistant Agent may be incorrectly installed.	true
InternetIp	string	The public IP address of the managed instance.	40.65..
Hostname	string	The hostname of the managed instance.	demo
InstanceId	string	The ID of the managed instance.	mi-hz018jrc1o0****
ActivationId	string	The ID of the activation code.	3704F543-F768-43FA-9864-897F75B3****
IntranetIp	string	The internal IP address of the managed instance.	10.0..
AgentVersion	string	The version number of Cloud Assistant Agent.	2.2.0.102
RegistrationTime	string	The time when the managed instance was registered.	2021-01-20T08:57:56Z
InstanceName	string	The name of the managed instance.	webAPP-linux-01
OsType	string	The operating system type of the managed instance.	Linux
OsVersion	string	The version information of the operating system.	Linux_#38~18.04.1-Ubuntu SMP Wed Jan 6 18:26:30 UTC 2021_x86_64
InvocationCount	long	The number of times that Cloud Assistant tasks were executed on the managed instance.	1
MachineId	string	The machine code of the managed instance.	e03231b37ab14e53b5795ad625fc****
Tags	array<object>	The tags of the managed instance.
Tag	object	The tag of the managed instance.
TagKey	string	The key of tag N of the managed instance. Valid values of N: 1 to 20. The tag key cannot be an empty string. If a single tag is specified to query resources, up to 1,000 resources that have this tag added are returned. If multiple tags are specified to query resources, up to 1,000 resources that have all these tags added are returned. To query more than 1,000 resources that have the specified tags, call the ListTagResources operation. The tag key can be up to 64 characters in length and cannot contain `http://` or `https://`. The tag key cannot start with `acs:` or `aliyun`.	TestKey
TagValue	string	The value of tag N of the managed instance. Valid values of N: 1 to 20. The tag value can be an empty string. The tag value can be up to 128 characters in length and cannot contain `http://` or `https://`.	TestValue
ResourceGroupId	string	The ID of the resource group to which the managed instance belongs.	rg-123******
NextToken	string	A pagination token. It can be used in the next request to retrieve a new page of results.	AAAAAdDWBF2

Examples

Sample success responses

JSONformat

{
  "PageSize": 10,
  "RequestId": "77115469-F2C5-4ECA-94F7-FA04F2FD****",
  "PageNumber": 1,
  "TotalCount": 1,
  "Instances": [
    {
      "LastInvokedTime": "2021-01-20T09:00:40Z",
      "Connected": true,
      "InternetIp": "40.65.**.**",
      "Hostname": "demo",
      "InstanceId": "mi-hz018jrc1o0****",
      "ActivationId": "3704F543-F768-43FA-9864-897F75B3****",
      "IntranetIp": "10.0.**.**",
      "AgentVersion": "2.2.0.102",
      "RegistrationTime": "2021-01-20T08:57:56Z",
      "InstanceName": "webAPP-linux-01",
      "OsType": "Linux",
      "OsVersion": "Linux_#38~18.04.1-Ubuntu SMP Wed Jan 6 18:26:30 UTC 2021_x86_64",
      "InvocationCount": 1,
      "MachineId": "e03231b37ab14e53b5795ad625fc****",
      "Tags": [
        {
          "TagKey": "TestKey",
          "TagValue": "TestValue"
        }
      ],
      "ResourceGroupId": "rg-123******"
    }
  ],
  "NextToken": "AAAAAdDWBF2"
}

Error codes

HTTP status code	Error code	Error message	Description
400	RegionId.ApiNotSupported	The api is not supported in this region.	The API operation cannot be called in the specified region. Check whether the specified RegionId parameter is valid.
400	InvalidParam.PageNumber	The specified parameter is invalid.	The specified PageNumber parameter is invalid.
400	InvalidParam.PageSize	The specified parameter is invalid.	The specified PageSize parameter is invalid.
400	InvalidTagKey.Malformed	The specified Tag.n.Key is not valid.	The specified Tag.N.Key parameter is invalid.
400	InvalidTagValue.Malformed	The specified Tag.n.Value is not valid.	The specified tag value is invalid.
400	NumberExceed.Tags	The Tags parameter number is exceed.	The number of tags exceeds the maximum limit.
400	MissingParameter.TagKey	You must specify Tag.N.Key.	The tag key is not specified.
400	Duplicate.TagKey	The Tag.N.Key contain duplicate key.	The specified tag key already exists. Tag keys must be unique.
400	InvalidParameter.NextToken	The specified parameter NextToken is not valid.	The specified parameter NextToken is illegal.
400	InvalidParameter.MaxResults	The specified parameter MaxResults is not valid.	The specified parameter MaxResults is illegal.
403	Operation.Forbidden	The operation is not permitted.	The operation is not supported.
404	InvalidRegionId.NotFound	The RegionId provided does not exist in our records.	The RegionId provided does not exist
500	InternalError.Dispatch	An error occurred when you dispatched the request.	An error occurred while the request is being sent. Try again later.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-12-05	API Description Update. The Error code has changed	View Change Details
2023-12-21	The Error code has changed. The request parameters of the API has changed. The response structure of the API has changed	View Change Details
2023-11-23	The Error code has changed. The request parameters of the API has changed. The response structure of the API has changed	View Change Details
2022-02-25	The Error code has changed	View Change Details