AWS CloudTrail
API Reference (API Version 2013-11-01)

DataResource

The Amazon S3 buckets or AWS Lambda functions that you specify in your event selectors for your trail to log data events. Data events provide insight into the resource operations performed on or within a resource itself. These are also known as data plane operations. You can specify up to 250 data resources for a trail.

Note

The total number of allowed data resources is 250. This number can be distributed between 1 and 5 event selectors, but the total cannot exceed 250 across all selectors.

The following example demonstrates how logging works when you configure logging of all data events for an S3 bucket named bucket-1. In this example, the CloudTrail user spcified an empty prefix, and the option to log both Read and Write data events.

  1. A user uploads an image file to bucket-1.

  2. The PutObject API operation is an Amazon S3 object-level API. It is recorded as a data event in CloudTrail. Because the CloudTrail user specified an S3 bucket with an empty prefix, events that occur on any object in that bucket are logged. The trail processes and logs the event.

  3. A user uploads an object to an Amazon S3 bucket named arn:aws:s3:::bucket-2.

  4. The PutObject API operation occurred for an object in an S3 bucket that the CloudTrail user didn't specify for the trail. The trail doesn’t log the event.

The following example demonstrates how logging works when you configure logging of AWS Lambda data events for a Lambda function named MyLambdaFunction, but not for all AWS Lambda functions.

  1. A user runs a script that includes a call to the MyLambdaFunction function and the MyOtherLambdaFunction function.

  2. The Invoke API operation on MyLambdaFunction is an AWS Lambda API. It is recorded as a data event in CloudTrail. Because the CloudTrail user specified logging data events for MyLambdaFunction, any invocations of that function are logged. The trail processes and logs the event.

  3. The Invoke API operation on MyOtherLambdaFunction is an AWS Lambda API. Because the CloudTrail user did not specify logging data events for all Lambda functions, the Invoke operation for MyOtherLambdaFunction does not match the function specified for the trail. The trail doesn’t log the event.

Contents

Type

The resource type in which you want to log data events. You can specify AWS::S3::Object or AWS::Lambda::Function resources.

Type: String

Required: No

Values

An array of Amazon Resource Name (ARN) strings or partial ARN strings for the specified objects.

  • To log data events for all objects in all S3 buckets in your AWS account, specify the prefix as arn:aws:s3:::.

    Note

    This will also enable logging of data event activity performed by any user or role in your AWS account, even if that activity is performed on a bucket that belongs to another AWS account.

  • To log data events for all objects in all S3 buckets that include my-bucket in their names, specify the prefix as aws:s3:::my-bucket. The trail logs data events for all objects in all buckets whose name contains a match for my-bucket.

  • To log data events for all objects in an S3 bucket, specify the bucket and an empty object prefix such as arn:aws:s3:::bucket-1/. The trail logs data events for all objects in this S3 bucket.

  • To log data events for specific objects, specify the S3 bucket and object prefix such as arn:aws:s3:::bucket-1/example-images. The trail logs data events for objects in this S3 bucket that match the prefix.

  • To log data events for all functions in your AWS account, specify the prefix as arn:aws:lambda.

    Note

    This will also enable logging of Invoke activity performed by any user or role in your AWS account, even if that activity is performed on a function that belongs to another AWS account.

  • To log data eents for a specific Lambda function, specify the function ARN.

    Note

    Lambda function ARNs are exact. Unlike S3, you cannot use matching. For example, if you specify a function ARN arn:aws:lambda:us-west-2:111111111111:function:helloworld, data events will only be logged for arn:aws:lambda:us-west-2:111111111111:function:helloworld. They will not be logged for arn:aws:lambda:us-west-2:111111111111:function:helloworld2.

Type: Array of strings

Required: No

See Also

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

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