Cleaning up after the Neptune Blue/Green solution has completed
After you have promoted the staging (green) cluster to production, clean up the resources created by the Neptune Blue/Green solution:
Delete the Amazon EC2 instance that was created to run the solution.
Delete the AWS CloudFormation templates for the Neptune streams-based replication that kept the green cluster in sync with the blue cluster. The main one has the stack name that you provided earlier, and one is composed of the deployment ID followd by "-replication": that is,
(DeploymentID)-replication
Deleting AWS CloudFormation templates doesn't delete the clusters themselves. Once you have verified that the green cluster is working as expected, you can optionally take a snapshot before manually deleting the blue cluster.
