Cloud Native Wasm Day Europe 2022

The technology landscape for Wasm is growing every day. Join me for a tour of WebAssembly, where we will analyze areas of rapid growth for Wasm to predict the future of application development. Wasm is finding a home in every layer of the technical stack. When it comes to creating plugins and adding extensibility to projects, Wasm is rapidly becoming the de facto solution with excellent support for multiple languages. Another trend is serverless where we are seeing Wasm revolutionize application development via actor and event-driven architectures. Looking towards the future, it's not hard to imagine Wasm becoming the default runtime for the entire stack. Imagine applications compiled to Wasm, distributed and networked with a Wasm filter, admitted by a Wasm Open Policy Agent rule, versioned using a Wasm native package manager, Wasm clients that run on any device in the web or edge device, and the expressions used to operate on data are driven by Wasm.

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Platform and language independence are considered two of WebAssembly's main advantages, which open the door to new possibilities for secure and polyglot runtime environments and applications. To what extent and how practical is it to achieve polyglot applications on top of WebAssembly today? In this talk, Saúl will showcase – using JS-on-Wasm and Rust – how to leverage WebAssembly's Component Model to create composable, polyglot Wasm applications through safe programming language interoperability.

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With the rise of independent content creators in social platforms, there is also a growing market for independent software or game creators. Independent game creators should be able to upload game servers as easily as youtubers uploading videos. Very often indie game developers will shutdown their AWS instances, because the losses due to server cost cannot be recuperated. The presentation will demonstrate the maturity of the Wasm ecosystem in providing low cost cloud platforms for game servers.

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One of the most common use cases for WebAssembly are plug-in systems. We think this approach could be beneficial for many Kubernetes core parts. Thus, we decided to make Admission Controllers the first stop of this evolutionary journey. Kubernetes built-in controllers cannot cover all the scenarios an organization has. Therefore, Dynamic Admission Controllers are offered to have a flexible way to extend the core capabilities. These components run outside of the API Server, with the network sitting in between the source of the events and the code doing the actual evaluation. This increases latency and makes the final outcome less certain because new failure scenarios are introduced. That effectively means Dynamic Admission Controllers are less predictable than their built-in counterparts. This talk will show a prototype that leverages WebAssembly as a way to add custom controllers to the API Server. These components will be as predictable as the built-in ones. Moreover, this approach is useful for edge deployments too because it leads to more lightweight environments. This solution releases computation resources for the end user workloads running on constrained edge locations.

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This session introduce the WAMR - a hign performance and small footprint WebAssembly runtime in Envoy. The advantages can get by building envoy with this wasm runtime.

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Adobe makes use of Wasm in its flagship web browser-based products including Photoshop, Lightroom, and Acrobat. This past year it has explored potential use cases for Wasm in edge compute and in the datacenter with wasmCloud. Of particular interest were the potential performance, cost, security, and compliance benefits. Wasm and WASI have many potential advantages over Docker and standard web frameworks in these areas, but what needs to be done to realize those benefits at Adobe? This presentation begins with a summary of Adobe's current use cases, including the toolchains employed and major implementation challenges. It then proceeds to an exploration of CDN edge compute and Wasm/WASI platforms, compelling application and platform features for Adobe, and a demonstration of proofs of concept. It concludes with future looking platform requirements and how Adobe expects to take advantage of this technology at scale moving forward.

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