Möbius: Shopify’s Unified Edge - Shopify

What this post added

This post details the creation of Möbius, a unified edge network system at Shopify, and its complementary routing layer, Shopify Front End (SFE). It addresses the problem of having over six different traffic paths, which complicated feature deployment, observability, and onboarding. Möbius standardizes TLS/TCP termination and DDoS protection, while SFE provides a unified routing layer using nginx and custom Lua code. The system automates domain and certificate management at the edge, simplifying the process for application owners. The post also highlights the benefits of this unification for future edge capabilities like caching and cluster-to-cluster communication.