ECS vs EKS in 2026: The ECS Limits AWS Won't Raise, and When They Matter
If ECS works for your team, no single limit forces you off it. Growing teams still hit a few hard ECS and Fargate quotas that AWS won't raise, starting with 100 target groups per load balancer for preview environments. Here are the limits, the numbers, and how to add EKS for previews without moving production. Guillaume is a Staff Solutions Architect at Qovery. He helps customers troubleshoot production infrastructure and writes about Kubernetes operations, AI agents, and reliable cloud platforms.