Document Security group behaviour for additional node groups. * By default if no Security Group(SG) is provided we add the nodegroup to the existing default nodegroup SG. * If you provide your own SG (if you want to strictly control access) * Remember to allow for core DNS queries to default SG (Add an IngressRule to that SG) * Allow access to/from the Control Plane SG.
Document Security group behaviour for additional node groups.