preSignedUrl

When you are replicating a DB cluster from one Amazon Web Services GovCloud (US) Region to another, an URL that contains a Signature Version 4 signed request for the CreateDBCluster operation to be called in the source Amazon Web Services Region where the DB cluster is replicated from. Specify PreSignedUrl only when you are performing cross-Region replication from an encrypted DB cluster.

The presigned URL must be a valid request for the CreateDBCluster API operation that can run in the source Amazon Web Services Region that contains the encrypted DB cluster to copy.

The presigned URL request must contain the following parameter values:

  • KmsKeyId - The KMS key identifier for the KMS key to use to encrypt the copy of the DB cluster in the destination Amazon Web Services Region. This should refer to the same KMS key for both the CreateDBCluster operation that is called in the destination Amazon Web Services Region, and the operation contained in the presigned URL.

  • DestinationRegion - The name of the Amazon Web Services Region that Aurora read replica will be created in.

  • ReplicationSourceIdentifier - The DB cluster identifier for the encrypted DB cluster to be copied. This identifier must be in the Amazon Resource Name (ARN) format for the source Amazon Web Services Region. For example, if you are copying an encrypted DB cluster from the us-west-2 Amazon Web Services Region, then your ReplicationSourceIdentifier would look like Example: arn:aws:rds:us-west-2:123456789012:cluster:aurora-cluster1.

To learn how to generate a Signature Version 4 signed request, see Authenticating Requests: Using Query Parameters (Amazon Web Services Signature Version 4) and Signature Version 4 Signing Process.

If you are using an Amazon Web Services SDK tool or the CLI, you can specify SourceRegion (or --source-region for the CLI) instead of specifying PreSignedUrl manually. Specifying SourceRegion autogenerates a presigned URL that is a valid request for the operation that can run in the source Amazon Web Services Region.

Valid for Cluster Type: Aurora DB clusters only