Cloud Native Wasm Day 2021

14:00 - 14:10 CEST
Lightning Talk: Migrating from JS to WASM in production and living to tell the tale - Corentin Godeau, Lumen 
Here at Lumen, we develop software to help video streaming platforms scale to millions of viewers and provide top-notch quality to audiences. As video streaming soared last year, we embarked on a journey to improve the performance of one of our core offerings - a client-side CDN load balancer. In this talk, we explain how we migrated our legacy JavaScript codebase into C++ targeting WASM for the web. We discuss how we overcame the differences in paradigm between JS and WASM. We explore the constraints WASM presented when ensuring compatibility with native and how that shaped our code architecture. We also look at the tooling we used to debug the code that went into production and share some practical insights into memory management and the battle scars that you can avoid if you plan to take on this kind of project yourself.

14:10 - 14:20 CEST
Lightning Talk: Building web services for a future based on WebAssembly - Connor Hicks, 1Password
In this talk, Connor will dive into Atmo, an open source framework designed for building cloud native applications using WebAssembly modules. Atmo is enabling developers to build their applications with the popular patterns of serverless computing, while harnessing the power and security of WebAssembly. Connor will show how WebAssembly makes it easier to deploy an application to the cloud by demonstrating Atmo's unique development patterns, easy to use APIs, and straightforward deployments. Connor will also be providing extensive example code and a deep dive into what makes WebAssembly the next iteration of cloud software development.

14:20 - 14:30 CEST
Lightning Talk: Build trusted cloud apps with Wasm: WebAssembly Micro Runtime is ready - Xin Wang, Intel
It is critical to guarantee the confidentiality and integrity of user code and data on the cloud and the solutions often rely on the CPU Trusted Execution Environment (TEE) feature such as Intel Software Guard Extension (SGX). Wasm introduced a new approach for abstracting workloads from the underlying TEE HW differences. WebAssembly Micro Runtime (WAMR), a Bytecode Alliance open source project has provided comprehensive support for Intel SGX, such as compiled Wasm modules, WASI, TensorFlow, and it has made an excellent adoption trend on SGX by open-source projects and commercial products. This talk will introduce the WAMR architecture and key features, as well as its usages on cloud TEE such as Smart Contract, Multi-parties computing. It will also share how the projects like Inclavare, Faasm use WAMR to orchestrate Wasm workloads for smoothly extending to cloud TEE.

14:30 - 14:40 CEST
Lightning Talk: Storing WebAssembly Modules with Bindle - Matt Butcher & Taylor Thomas, Microsoft
In this presentation we introduce Bindle, a technology for distributing collections of WebAssembly modules. We will talk about supply chain security, distributing nanoprocess-based applications (including wasmCloud), secure proxying, and dynamically assembling applications based on host capabilities. Bindle is designed to move beyond plain object storage. It can describe applications as graphs, where the application can be assembled at runtime based on the constraints and capabilities of the host. An embedded device may favor performance and speed of thoroughness. A server may run an application with a web frontend, while a phone may render it using a native windowing solution. Bindle provides a way to describe these characteristics so that the client can assemble the right collection of WebAssembly binaries to execute optimally.