Rollback to a Previous AMI

If a rollback is required, complete the following steps:

  1. Create a new Aurora instance, using the database snapshot you took earlier as the source.
  2. Stop the upgraded Controller if it is still running: 
    bin/platform-admin.sh stop-controller-appserver
  3. Repoint the database DNS alias to the new Aurora instance.
  4. Terminate the EC2 instance hosting the current Controller. This should cause a new EC2 instance to be provisioned using the existing AMI, with the older Controller version.
  5. Attach the ENI to the new EC2 instance.
  6. Verify that the Controller is working as it was before the upgrade.