Envoy project archive

This is a curated inventory of public, original repositories under github.com/dio that explore Envoy concepts, reproduce issues, or make Envoy development easier. It was reviewed on 2026-08-14. Forks, binary mirrors, private repositories, and unrelated products are intentionally omitted.

Older experiments may use historical Envoy APIs or container images. Treat them as references, not as promises of compatibility with current Envoy releases.

Active work and focused reproducers now live in Current Envoy prototypes and issue reproductions.

Dynamic modules and extension SDKs

• luwes — zero-allocation Go SDK and drop-in replacement for Envoy's upstream dynamic-modules SDK.
• transit — an ergonomic Go layer for Envoy dynamic modules.
• jisr — Go middleware-style API for Envoy dynamic modules.
• zig-envoy-sdk — Zig SDK for Envoy dynamic-module filters.
• jisr-hello — archived minimal dynamic-module filter example.

Build, test, and operations helpers

• envoy-builder — on-demand Envoy builds using GitHub Actions.
• envoy-mini-builder — remote Mac mini builds and releases for Envoy.
• setup-envoy — GitHub Action for installing Envoy.
• envoy-test-tools — utilities for Envoy-focused tests.
• gh-istio-envoy-version — GitHub CLI extension for inspecting Istio and Envoy version relationships.
• envoy-docker-compose — Docker Compose environment for working with Envoy.
• gateway-pairs — Envoy Gateway namespace-pair experiments.

Earlier experiments and examples

• per-route-envoy-lua — experimental per-route Lua configuration.
• envoy-lua-opa — Open Policy Agent authorization from an Envoy Lua filter using httpCall.
• envoy-lua-test — LuaSocket experiment inside Envoy's Lua filter; the blocking approach is not recommended for production.
• authz — ext_authz experiment combined with dynamic forward proxying.
• envoy-mysql-ext_authz-test — MySQL proxy metadata and external-authorization experiment.
• ruby-als-server — Ruby access-log service example.
• envoy-filter-diy, envoy-diy-filter-1, and envoy-filter-example-1 — C++ HTTP filter examples from different iterations.
• simple-grpc — gRPC topology with front and internal Envoys, TLS, and health checking.
• envoy-hello-validation-context — client-certificate validation and routing example.
• envoy-authorization-header-check-js — authorization-header checking experiment in JavaScript.