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We Replaced Nginx with Envoy to Scale Sealos Cloud to 2k Tenants

3 ToAffinity 1 5/21/2025, 7:00:09 AM sealos.io ↗

Comments (1)

ToAffinity · 13h ago
Sealos Cloud supports 87,000 users and thousands of concurrent app deployments on shared Kubernetes clusters. We hit hard limits with Nginx Ingress—reload instability, high resource usage, and poor long-connection handling. This post details why we moved to an Envoy-based gateway (Higress), what went wrong with other solutions (APISIX, Cilium, Envoy Gateway), and what it really takes to support massive multi-tenancy in public cloud environments.