Scaling down API Gateway in a Reverse Invoke setup - DMZ Zone

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Procedure

  1. Remove a node from the DMZ zone by removing the node from the Load balancer.
    The node is removed.
  2. Shut down the node.
  3. After the grace period for the inflight transactions to complete, remove the internal port from the nodes in green zone, that is configured to connect to the removed API Gateway node from the DMZ zone.