I'm trying to figure out what are the best practices to setup a HA VPC
The question relate to:
What is the correct setup of a VPC that is spread all over the AZ of a region, with private and public subnet in every AZ, is it mandatory to create a NAT instance in every public subnet ?
How to achieve HA for the NAT instance, i.e should i wrap it with a autoscale group that ensure that i will have 1 instance up and running ?
Thanks!