Lessons Learned: Developing WASM filter for logging use-case

Presented by Amey Bhide & Takeshi Yoneda at IstioCon 2022. WebAssembly (WASM) filters enable users to extend Envoy functionality. In this talk, we will discuss Proxy-WASM, Go SDK, our experience writing a Go-based WASM filter, problems we encountered writing a WASM filter at Splunk and a way to build a singleton WASM filter.