WebAssembly plugin for Apache Traffic Server
summary
A WebAssembly plugin runs proxy-wasm modules on Apache Traffic Server and supports runtimes like Wasmtime, WAMR and WasmEdge; a Rust example reads a request header token, tests primality and either continues proxying or fabricates a 403, and the Coraza WAF compiled to Wasm turns ATS into a working web application firewall. Current gaps include HTTP/2 trailers, gRPC handlers and a caching-API mismatch with Envoy, performance/resource contention is unresolved, and V8 and wasi‑nn AI inference support are planned.
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chapters (11)
- 0:00Introduction and speaker background
- 1:14Apache Traffic Server overview
- 3:01ATS plugin system evolution
- 7:20WebAssembly introduction
- 9:05ATS WebAssembly plugin architecture
- 11:09Rust example and use case
- 13:22Web application firewall demo
- 15:13Benefits of WebAssembly
- 17:44Challenges and limitations
- 19:55WebAssembly runtimes overview
- 25:14Summary and future plans
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