Help & DocumentationCloud Virtual MachineAPI DocumentationKey-related APIsAssociateInstancesKeyPairs

AssociateInstancesKeyPairs

Last updated: 2018-10-12 16:03:00

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Contents：

1. API Description

Domain name for API request: cvm.tencentcloudapi.com

This API (AssociateInstancesKeyPairs) is used to bind a key pair to an instance.

  • When the public key of a key pair is written to the SSH configuration of the instance, you can log in to the instance through the private key of the key pair.
  • If the instance has been bound with a key, the old key will become invalid.
  • If the instance was originally logged in through a password, the password becomes unavailable after the key is bound to the instance.
  • Batch operations are supported. A maximum of 100 instances are allowed in a batch for each request. If there is any instance that is unsupported for the operation in the batch of instances, an error code is returned.

A maximum of 10 requests can be initiated per second for this API.

Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example: cvm.ap-shanghai-fsi.tencentcloudapi.com

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common parameter. The value used for this API: AssociateInstancesKeyPairs
Version Yes String Common parameter. The value used for this API: 2017-03-12
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
InstanceIds.N Yes Array of String ID(s) of one or more instances you are working with. A maximum of 100 instances are allowed in a batch for each request.
You can obtain the available instance ID by either of the following ways:
  • Query the instance ID by logging in to the Console.
  • Call the API DescribeInstances to obtain the instance ID from the InstanceId field value in the returned result.
    		•
    KeyIds.N Yes Array of String ID(s) of one or more key pairs you are working with. A maximum of 100 key pairs are allowed in a batch for each request. A key pair ID takes a format such as skey-3glfot13.
    You can obtain the available key ID by either of the following ways:
  • Query the key ID by logging in to the Console.
  • Call the API DescribeKeyPairs to obtain the key pair ID from the KeyId field value in the returned result.
    		•
    ForceStop No Boolean Indicates whether to perform a forced shutdown on a running instance. It is recommended to manually shut down the running instance before resetting the user password. Supported values:
  • TRUE: Perform a forced shutdown in case of a failed normal shutdown.
  • FALSE: Do not perform a forced shutdown.
    Default: FALSE.
    		•

    3. Output Parameters

    Parameter Name Type Description
    RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

    4. Error Codes

    The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

    Error Code Description
    InternalServerError Internal error.
    InvalidInstance.NotSupported Unsupported instance.
    InvalidInstanceId.Malformed Invalid instance ID. Specified instance ID is not in a correct format. For example, ins-1122 has an invalid instance ID length.
    InvalidInstanceId.NotFound No instance found.
    InvalidKeyPairId.Malformed Invalid key pair ID. The specified key pair ID is in an incorrect format. For example, skey-1122 has an invalid ID length.
    InvalidKeyPairId.NotFound Invalid key pair ID. The specified key pair ID does not exist.
    InvalidParameterValue Invalid parameter value. The parameter value is in an incorrect format or is not supported.
    InvalidParameterValue.LimitExceeded Number of parameter values exceeds the limit.
    MissingParameter Parameter is missing. A required parameter is missing in the request.

    5. Example

    Example 1 Bind a key pair to a CVM

    Input example

    https://cvm.tencentcloudapi.com/?Action=AssociateInstancesKeyPairs
&InstanceIds.0=ins-1e4r6y8i
&InstanceIds.1=ins-3e56fg78
&KeyIds.0=skey-4e5ty7i8
&<Common request parameters>

    Output example

    {
  "Response": {
    "RequestId": "6ef60bec-0242-43af-bb20-270359fb54a7"
  }
}