NAT Gateway Costs in Multi-Account AWS Data Platforms: A Common and Expensive Trap
In many AWS environments, NAT Gateways are treated as a default building block rather than a deliberate design choice.Private subnet? Add a NAT Gateway.Outbound traffic? Route it through NAT. This pattern feels safe, simple, and aligned with AWS best practices. In reality, for data platforms and CDP-style architectures, NAT Gateways often become one of the … Read more