A Tale of Two HTTP/2 Codecs
An Envoy version bump cost a customer 20% of their HTTP/2 throughput. The trail leads through two codecs, a pile of flamegraphs, and the Huffman code hiding inside every header.
All systems operationalApoxy:// Field notesNotes from
Notes from
the edge.
Engineering posts, architecture writeups, and the occasional hot take.
01FeaturedThis week
FIG. 01 — TARGET∅ 339 · 10 min read
CLRK: an open-source Cognitive Loop Runtime for Kubernetes
CLRK pairs gVisor isolation with credential injection - Envoy intercepts every request, so agents never hold your API keys or touch your network directly.
02ArchiveMost recent first
Introducing Apoxy Services
Apoxy Services puts a JavaScript/Wasm runtime in your gateway. Write a fetch handler, deploy it with one command, and run it anywhere your gateway runs.
How Trainy gives AI teams one control plane across every GPU cluster with Apoxy
Trainy's platform schedules GPU workloads across its customers' Kubernetes clusters and clouds. To do that, they need a reliable, secure connection into every one of those environments. Here's how they built it on Apoxy.
This Blog Post Runs a TCP Stack
An interactive, in-browser TCP congestion control simulation using WebAssembly.
Where gVisor cold-boot time goes - and why a bigger instance won't fix it
We measured runsc cold boot on a number of hosts across three clouds and one Mac. The fast number isn't the cloud, the slow part isn't the kernel, and most of the obvious fixes do nothing.
A cloud Gateway API for teams running more than one cluster
Why we built one control plane for HTTPRoute across clusters, and what shipping the managed gateway looks like for self-serve teams and in-VPC deployments.
Riffing on Nginx Playground
Forking Julia Evans' Nginx Playground into an Envoy playground in an afternoon - sed, func-e, a CodeMirror fix, and a Fly.io deploy.
Announcing Apoxy
Introducing Apoxy: the proxy platform for improving the security, observability, and usability of APIs and services at scale, built on Envoy and WebAssembly.
Showing 1–8 of 8