AWS CloudFormation
API Reference (API Version 2010-05-15)

The AWS Documentation website is getting a new look!
Try it now and let us know what you think. Switch to the new look >>

You can return to the original look by selecting English in the language selector above.

DescribeStackDriftDetectionStatus

Returns information about a stack drift detection operation. A stack drift detection operation detects whether a stack's actual configuration differs, or has drifted, from it's expected configuration, as defined in the stack template and any values specified as template parameters. A stack is considered to have drifted if one or more of its resources have drifted. For more information on stack and resource drift, see Detecting Unregulated Configuration Changes to Stacks and Resources.

Use DetectStackDrift to initiate a stack drift detection operation. DetectStackDrift returns a StackDriftDetectionId you can use to monitor the progress of the operation using DescribeStackDriftDetectionStatus. Once the drift detection operation has completed, use DescribeStackResourceDrifts to return drift information about the stack and its resources.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

StackDriftDetectionId

The ID of the drift detection results of this operation.

AWS CloudFormation generates new results, with a new drift detection ID, each time this operation is run. However, the number of drift results AWS CloudFormation retains for any given stack, and for how long, may vary.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Required: Yes

Response Elements

The following elements are returned by the service.

DetectionStatus

The status of the stack drift detection operation.

  • DETECTION_COMPLETE: The stack drift detection operation has successfully completed for all resources in the stack that support drift detection. (Resources that do not currently support stack detection remain unchecked.)

    If you specified logical resource IDs for AWS CloudFormation to use as a filter for the stack drift detection operation, only the resources with those logical IDs are checked for drift.

  • DETECTION_FAILED: The stack drift detection operation has failed for at least one resource in the stack. Results will be available for resources on which AWS CloudFormation successfully completed drift detection.

  • DETECTION_IN_PROGRESS: The stack drift detection operation is currently in progress.

Type: String

Valid Values: DETECTION_IN_PROGRESS | DETECTION_FAILED | DETECTION_COMPLETE

DetectionStatusReason

The reason the stack drift detection operation has its current status.

Type: String

DriftedStackResourceCount

Total number of stack resources that have drifted. This is NULL until the drift detection operation reaches a status of DETECTION_COMPLETE. This value will be 0 for stacks whose drift status is IN_SYNC.

Type: Integer

StackDriftDetectionId

The ID of the drift detection results of this operation.

AWS CloudFormation generates new results, with a new drift detection ID, each time this operation is run. However, the number of reports AWS CloudFormation retains for any given stack, and for how long, may vary.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

StackDriftStatus

Status of the stack's actual configuration compared to its expected configuration.

  • DRIFTED: The stack differs from its expected template configuration. A stack is considered to have drifted if one or more of its resources have drifted.

  • NOT_CHECKED: AWS CloudFormation has not checked if the stack differs from its expected template configuration.

  • IN_SYNC: The stack's actual configuration matches its expected template configuration.

  • UNKNOWN: This value is reserved for future use.

Type: String

Valid Values: DRIFTED | IN_SYNC | UNKNOWN | NOT_CHECKED

StackId

The ID of the stack.

Type: String

Timestamp

Time at which the stack drift detection operation was initiated.

Type: Timestamp

Errors

For information about the errors that are common to all actions, see Common Errors.

Example

DescribeStackDriftDetectionStatus

Sample Request

https://cloudformation.us-east-1.amazonaws.com/ ?Action=DescribeStackDriftDetectionStatus &Version=2010-05-15 &StackDriftDetectionId=b78ac9b0-dec1-11e7-a451-503a3example &X-Amz-Algorithm=AWS4-HMAC-SHA256 &X-Amz-Credential=[Access key ID and scope] &X-Amz-Date=20171211T230005Z &X-Amz-SignedHeaders=content-type;host &X-Amz-Signature=[Signature]

Sample Response

<DescribeStackDriftDetectionStatusResponse xmlns="http://cloudformation.amazonaws.com/doc/2010-05-15/"> <DescribeStackDriftDetectionStatusResult> <DetectionStatus>DETECTION_COMPLETE</DetectionStatus> <StackDriftDetectionId>b78ac9b0-dec1-11e7-a451-503a3example</StackDriftDetectionId> <DriftedStackResourceCount>0</DriftedStackResourceCount> <StackId>arn:aws:cloudformation:us-east-1:099908667365:stack/example/cb438120-6cc7-11e7-998e-50example</StackId> <StackDriftStatus>IN_SYNC</StackDriftStatus> <Timestamp>2017-12-11T22:22:04.747Z</Timestamp> </DescribeStackDriftDetectionStatusResult> <ResponseMetadata> <RequestId>f89bbda1-dec1-11e7-83c6-d92bexample</RequestId> </ResponseMetadata> </DescribeStackDriftDetectionStatusResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: