Sharing a DB cluster snapshot - Amazon Aurora
Sharing a snapshot

Sharing a DB cluster snapshot

Using Amazon RDS, you can share a manual DB cluster snapshot in the following ways:

  • Sharing a manual DB cluster snapshot, whether encrypted or unencrypted, enables authorized AWS accounts to copy the snapshot.

  • Sharing a manual DB cluster snapshot, whether encrypted or unencrypted, enables authorized AWS accounts to directly restore a DB cluster from the snapshot instead of taking a copy of it and restoring from that.

Note

To share an automated DB cluster snapshot, create a manual DB cluster snapshot by copying the automated snapshot, and then share that copy. This process also applies to AWS Backup–generated resources.

For more information on copying a snapshot, see DB cluster snapshot copying. For more information on restoring a DB instance from a DB cluster snapshot, see Restoring from a DB cluster snapshot.

For more information on restoring a DB cluster from a DB cluster snapshot, see Overview of backing up and restoring an Aurora DB cluster.

You can share a manual snapshot with up to 20 other AWS accounts.

The following limitation applies when sharing manual snapshots with other AWS accounts:

  • When you restore a DB cluster from a shared snapshot using the AWS Command Line Interface (AWS CLI) or Amazon RDS API, you must specify the Amazon Resource Name (ARN) of the shared snapshot as the snapshot identifier.

Learn to share snapshots, public snapshots, and encrypted snapshots in the following sections. You can also learn how to stop sharing snapshots.

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Sharing a snapshot

You can share a DB cluster snapshot using the AWS Management Console, the AWS CLI, or the RDS API.

Using the Amazon RDS console, you can share a manual DB cluster snapshot with up to 20 AWS accounts. You can also use the console to stop sharing a manual snapshot with one or more accounts.

To share a manual DB cluster snapshot by using the Amazon RDS console

  1. Sign in to the AWS Management Console and open the Amazon RDS console at https://console.aws.amazon.com/rds/.

  2. In the navigation pane, choose Snapshots.

  3. Select the manual snapshot that you want to share.

  4. For Actions, choose Share snapshot.

  5. Choose one of the following options for DB snapshot visibility.

    • If the source is unencrypted, choose Public to permit all AWS accounts to restore a DB cluster from your manual DB cluster snapshot, or choose Private to permit only AWS accounts that you specify to restore a DB cluster from your manual DB cluster snapshot.

      Warning

      If you set DB snapshot visibility to Public, all AWS accounts can restore a DB cluster from your manual DB cluster snapshot and have access to your data. Do not share any manual DB cluster snapshots that contain private information as Public.

      For more information, see Sharing public snapshots.

    • If the source is encrypted, DB snapshot visibility is set as Private because encrypted snapshots can't be shared as public.

      Note

      Snapshots that have been encrypted with the default AWS KMS key can't be shared. For information on how to work around this issue, see Sharing encrypted snapshots.

  6. For AWS Account ID, enter the AWS account identifier for an account that you want to permit to restore a DB cluster from your manual snapshot, and then choose Add. Repeat to include additional AWS account identifiers, up to 20 AWS accounts.

    If you make an error when adding an AWS account identifier to the list of permitted accounts, you can delete it from the list by choosing Delete at the right of the incorrect AWS account identifier.

    Permit AWS accounts to restore a manual DB cluster snapshot

  7. After you have added identifiers for all of the AWS accounts that you want to permit to restore the manual snapshot, choose Save to save your changes.

To share a DB cluster snapshot, use the aws rds modify-db-cluster-snapshot-attribute command. Use the --values-to-add parameter to add a list of the IDs for the AWS accounts that are authorized to restore the manual snapshot.

Example of sharing a snapshot with a single account

The following example enables AWS account identifier 123456789012 to restore the DB cluster snapshot named cluster-3-snapshot.

For Linux, macOS, or Unix:

aws rds modify-db-cluster-snapshot-attribute \
--db-cluster-snapshot-identifier cluster-3-snapshot \
--attribute-name restore \
--values-to-add 123456789012

For Windows:

aws rds modify-db-cluster-snapshot-attribute ^
--db-cluster-snapshot-identifier cluster-3-snapshot ^
--attribute-name restore ^
--values-to-add 123456789012
Example of sharing a snapshot with multiple accounts

The following example enables two AWS account identifiers, 111122223333 and 444455556666, to restore the DB cluster snapshot named manual-cluster-snapshot1.

For Linux, macOS, or Unix:

aws rds modify-db-cluster-snapshot-attribute \
--db-cluster-snapshot-identifier manual-cluster-snapshot1 \
--attribute-name restore \
--values-to-add {"111122223333","444455556666"}

For Windows:

aws rds modify-db-cluster-snapshot-attribute ^
--db-cluster-snapshot-identifier manual-cluster-snapshot1 ^
--attribute-name restore ^
--values-to-add "[\"111122223333\",\"444455556666\"]"
Note

When using the Windows command prompt, you must escape double quotes (") in JSON code by prefixing them with a backslash (\).

To list the AWS accounts enabled to restore a snapshot, use the describe-db-cluster-snapshot-attributes AWS CLI command.

You can also share a manual DB cluster snapshot with other AWS accounts by using the Amazon RDS API. To do so, call the ModifyDBClusterSnapshotAttribute operation. Specify restore for AttributeName, and use the ValuesToAdd parameter to add a list of the IDs for the AWS accounts that are authorized to restore the manual snapshot.

To make a manual snapshot public and restorable by all AWS accounts, use the value all. However, take care not to add the all value for any manual snapshots that contain private information that you don't want to be available to all AWS accounts. Also, don't specify all for encrypted snapshots, because making such snapshots public isn't supported.

To list all of the AWS accounts permitted to restore a snapshot, use the DescribeDBClusterSnapshotAttributes API operation.