AI BriefingI'mweb Redesigns Service Network and Optimizes Costs with Amazon VPC Lattice and Kong
Key point
I'mweb redesigned its service network by introducing VPC Lattice and Kong Gateway to resolve ALB quota issues.
Details
I'mweb faced bottlenecks in its existing network architecture based on Amazon CloudFront and ALB, specifically hitting the upper limit of ALB listener rules and the restriction of 5 Target Groups per ECS service. In particular, the Target Group limit acted as a structural constraint that could not be resolved by requesting a quota increase, especially in architectures where public apps needed to connect to multiple ALBs.
Consequently, I'mweb undertook a redesign separating external entry points (North-South) from inter-service connections (East-West). The configuration uses NLB to cross account boundaries, handles L7 routing at Kong Gateway, and delegates the connection from the gateway to the application to Amazon VPC Lattice.
VPC Lattice is a managed application networking service that connects services across VPC and account boundaries; once registered in a service network, they can be accessed commonly from multiple VPCs and accounts. This simplified the complex connection configurations that scaled by 'number of entry points × number of apps' and implemented GitOps-declarative routing and a zero-trust security model.
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