update_chap_credentials

update_chap_credentials(**kwargs)

Updates the Challenge-Handshake Authentication Protocol (CHAP) credentials for a specified iSCSI target. By default, a gateway does not have CHAP enabled; however, for added security, you might use it. This operation is supported in the volume and tape gateway types.

Warning

When you update CHAP credentials, all existing connections on the target are closed and initiators must reconnect with the new credentials.

See also: AWS API Documentation

Request Syntax

response = client.update_chap_credentials(
    TargetARN='string',
    SecretToAuthenticateInitiator='string',
    InitiatorName='string',
    SecretToAuthenticateTarget='string'
)

Parameters

• TargetARN (string) --

  [REQUIRED]

  The Amazon Resource Name (ARN) of the iSCSI volume target. Use the DescribeStorediSCSIVolumes operation to return the TargetARN for specified VolumeARN.

• SecretToAuthenticateInitiator (string) --

  [REQUIRED]

  The secret key that the initiator (for example, the Windows client) must provide to participate in mutual CHAP with the target.

  Note

  The secret key must be between 12 and 16 bytes when encoded in UTF-8.

• InitiatorName (string) --

  [REQUIRED]

  The iSCSI initiator that connects to the target.

• SecretToAuthenticateTarget (string) --

  The secret key that the target must provide to participate in mutual CHAP with the initiator (e.g. Windows client).

  Byte constraints: Minimum bytes of 12. Maximum bytes of 16.

  Note

  The secret key must be between 12 and 16 bytes when encoded in UTF-8.

Return type

dict

Returns

Response Syntax

{
    'TargetARN': 'string',
    'InitiatorName': 'string'
}

Response Structure

• (dict) --

  A JSON object containing the following fields:

  • TargetARN (string) --

    The Amazon Resource Name (ARN) of the target. This is the same target specified in the request.

  • InitiatorName (string) --

    The iSCSI initiator that connects to the target. This is the same initiator name specified in the request.

Exceptions

• StorageGateway.Client.exceptions.InvalidGatewayRequestException
• StorageGateway.Client.exceptions.InternalServerError

Examples

Updates the Challenge-Handshake Authentication Protocol (CHAP) credentials for a specified iSCSI target.

response = client.update_chap_credentials(
    InitiatorName='iqn.1991-05.com.microsoft:computername.domain.example.com',
    SecretToAuthenticateInitiator='111111111111',
    SecretToAuthenticateTarget='222222222222',
    TargetARN='arn:aws:storagegateway:us-east-1:111122223333:gateway/sgw-12A3456B/target/iqn.1997-05.com.amazon:myvolume',
)

print(response)

Expected Output:

{
    'InitiatorName': 'iqn.1991-05.com.microsoft:computername.domain.example.com',
    'TargetARN': 'arn:aws:storagegateway:us-east-1:111122223333:gateway/sgw-12A3456B/target/iqn.1997-05.com.amazon:myvolume',
    'ResponseMetadata': {
        '...': '...',
    },
}