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Envoy, Wasm and Rust - the Mighty Trio
The document discusses the integration of Envoy, WebAssembly (WASM), and Rust in modern cloud-native infrastructure, emphasizing Envoy's role as a performant and extensible proxy. It outlines a build plan to create a Rust WASM module for Envoy that filters HTTP headers based on a specific condition. The overall message highlights the dynamic capabilities of WASM within service meshes, showcasing the development aspects and advantages of using Rust for this purpose.
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Envoy, Wasm and Rust - the Mighty Trio
- 1. @antweiss Envoy, WASM andRust - the Mighty Trio Ant Weiss Otomato Software Delivery : https://otomato.io @antweiss
- 2. @antweiss Envoy, WASM andRust - the Mighty Trio
- 3. @antweiss ● L4/L7 Proxy ●Modern C++ ● Performant ● Configurable ● Extensible
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- 5. @antweiss ● Service Meshes ○AWS App Mesh
- 6. @antweiss ● Service Meshes ○AWS App Mesh ○ Consul Connect
- 7. @antweiss ● Service Meshes ○AWS App Mesh ○ Consul Connect ○ VMWare NSX
- 8. @antweiss ● Service Meshes ○AWS App Mesh ○ Consul Connect ○ VMWare NSX ○ Kuma
- 9. @antweiss ● Service Meshes ○AWS App Mesh ○ Consul Connect ○ VMWare NSX ○ Kuma ○ Istio
- 10. @antweiss WebAssembly! Call me WASM ● BinaryCode Format ○ Sandboxed ○ Safe ○ Fast ○ Polyglot ○ Portable
- 11. @antweiss Rust! ● Expressive ● Performant ●Memory-safe ● FP ● Metaprogramming ● Loveable Put your Trust in Rust!
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- 16. @antweiss High Level Plan ●Build: ○ Create a Rust WASM module for Envoy ● Deploy: ○ Load the module into an Envoy container ● Test: ○ Proxy the traffic to hashicorp/http-echo
- 17. @antweiss Build Plan ● Createa Rust WASM module for Envoy ○ Based on ‘proxy-wasm’ crate. ○ Implement base Context trait. ○ Implement HttpContext trait: ■ Filter HTTP headers to create a Pandemic Authorizer: ● Only allow requests when ○ a “temperature” header is present ○ and has value below 37.0
- 18. @antweiss Sum It Up ●Envoy is proxying the cloud native world
- 19. @antweiss Sum It Up ●Envoy is proxying the cloud native world ● WASM is a scalable, dynamic extension mechanism
- 20. @antweiss Sum It Up ●Envoy is proxying the cloud native world ● WASM is a scalable, dynamic extension mechanism ● Writing WASM in Rust is serious fun !
- 21. @antweiss Sum It Up ●Envoy is proxying the cloud native world ● WASM is a scalable, dynamic extension mechanism ● Writing WASM in Rust is serious fun ! If running Envoy with Consul - look at https://github.com/layer5io/image-hub