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Amazon S3 Inventory Reports

The Amazon S3 Inventory Reports Matano managed log source lets you ingest your S3 inventory reports directly into Matano.

Amazon S3 Inventory Reports contain a full listing of every object in an S3 bucket.


Use the managed log source by specifying the managed.type property in your log_source as AWS_S3INVENTORY.

name: "aws_s3inventory"



The S3 inventory reports managed log source supports a single table containing S3 inventory reports.



S3 server inventory reports are always delivered to S3 buckets. You can provide the S3 bucket you are using for delivery to Matano by using the ingest.s3_source configuration in your log_source.yml (Bring your own bucket).


Matano only supports the CSV format for Amazon S3 inventory reports.

Specifying CSV headers

Because Amazon S3 inventory reports allow you to configure which fields are present in the report, you must specify the header format for your configuration.

To determine the header format for S3 inventory reports, access an existing delivery and locate the manifest.json file for the delivery. The file will contain the CSV headers in the fileSchema key. Add the list of strings in that order to your log_source.yml under ingest.csv_headers.

For example, if your manifest.json is as follows:

"fileSchema" : "Bucket, Key, Size, LastModifiedDate, ETag, StorageClass, IsMultipartUploaded, ReplicationStatus, EncryptionStatus, ObjectLockRetainUntilDate, ObjectLockMode, ObjectLockLegalHoldStatus, IntelligentTieringAccessTier, BucketKeyStatus, ChecksumAlgorithm"

You would specify the following in your log_source.yml

# log_source.yml
name: aws_s3inventory
type: aws_s3inventory

csv_headers: ["Bucket", "Key", "Size", "LastModifiedDate", "ETag", "StorageClass", "IsMultipartUploaded", "ReplicationStatus", "EncryptionStatus", "ObjectLockRetainUntilDate", "ObjectLockMode", "ObjectLockLegalHoldStatus", "IntelligentTieringAccessTier", "BucketKeyStatus", "ChecksumAlgorithm"]


S3 Inventory report data is normalized to ECS fields. Custom fields are normalized into the aws.s3inventory field. You can view the complete mapping to see the full schema.


S3 inventory reports are delivered hourly or weekly. When querying S3 inventory report data, make sure to add a constraint on the ts column (partition) to ensure that you are only accessing data for a specific report.