Wasm-SF Meetup - Creating a "Docker-Like" Experience for Wasm in Envoy

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Creating a "Docker Like" developer experience for WebAssembly Yuval Kohavi - Chief Architect @ Solo.io Shane O’Donnell - Software Engineer @ Solo.io

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4 | Copyright © 2020 Envoy - Cloud Native HTTP/TCP Proxy - Can be used to implement API Gateways, service meshes. - Configurable via API - Extendable - This one of the most compelling Envoy features. Each user can customize it.

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7 | Copyright © 2020 Control Path EXTERNAL AUTH RATE LIMITING gRPC TRANSCODER ROUTER UPSTREAM EXTERNAL AUTH SERVER RATE LIMITING SERVER VirtualService : route: / -> svc1 auth: opa: allow = ... auth: opa: allow = ... route: / -> svc1

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8 | Copyright © 2020 Data Path EXTERNAL AUTH RATE LIMITING ROUTER UPSTREAM EXTERNAL AUTH SERVER RATE LIMITING SERVER POST /dentists Content-Type: application/json Authorization: Bearer xyz {"name":”Dr. Seuss"} POST /com.example.DentistService/AddDentist Content-Type: application/grpc Authorization: Bearer xyz Binary protobuf: \x12\x011\x12\seuss { Method: "POST", Path: "/dentists", Headers: { "Content- Type”:"application/json", "Authorization": "Bearer xyz" } } OK Descriptors {generic_key: "add-drs"} OK gRPC TRANSCODER

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11 | Copyright © 2020 EXTERNAL AUTH RATE LIMITING ROUTER UPSTREAM EXTERNAL AUTH SERVER RATE LIMITING SERVER CUSTOM gRPC TRANSCODER Gloo – Custom filters ⃞ Use other languages ✓ Fast ✓ Safe ⃞ No need to compile ⃞ Easy

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13 | Copyright © 2020 “WebAssembly: it’s neither web, nor assembly” WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable target for compilation of high-level languages like C/C++/Rust, enabling deployment on the web for client and server applications. -> No Assembly -> Binary Instruction Format -> No Web -> WASI

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