Webassembly for cloud : a basic guide for Wasm-based cloud apps / Shashank Mohan Jain.
Jain, Shashank Mohan.
2022
QA76.76.A65 J35 2022
Available Online

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Title Webassembly for cloud : a basic guide for Wasm-based cloud apps / Shashank Mohan Jain.
Author Jain, Shashank Mohan.
ISBN 9781484274965 (electronic bk.)
1484274962 (electronic bk.)
1484274954
9781484274958
DOI https://doi.org/10.1007/978-1-4842-7496-5
Published [New York, NY] : Apress, [2022]
Language English
Description 1 online resource
Other Standard Identifiers 10.1007/978-1-4842-7496-5 doi
Call Number QA76.76.A65 J35 2022
Dewey Decimal Classification 006.76
Summary Journey into the amazing world of WebAssembly (Wasm) and learn about how it can be applied on the cloud. This book is an introduction to Wasm aimed at professionals accustomed to working with cloud-related technologies such as Kubernetes and Istio service mesh. Author Shashank Jain begins with an introduction to Wasm and its related tooling such as wasm-bindgen and wapc. He then walks you through code examples using Rust, Golang, and JavaScript to demonstrate how they can be compiled to Wasm and consumed from Wasm runtimes deployed standalone, as well as on the cloud. You will see how a wasm module can be run through an http interface, and how Wasm fits into CNCF projects such as Kubernetes and Istio service mesh. After that, youll learn how the polyglot nature of WebAssembly can be leveraged through examples written in languages like Rust and consumed via Golang and JavaScript, with a focus on how WebAssembly allows interoperability between them. Youll gain an understanding of how Wasm-based modules can be deployed inside Linux containers and orchestrated via Kubernetes, and how Wasm can be used within the Istio proxy to apply rules and filters. After reading this book, youll have the knowledge necessary to apply WebAssembly to create multi tenanted workloads which can be polyglot in nature and can be deployed on cloud environments like Kubernetes. You will: Understand how Wasm can be used for server-side applications Learn about Wasm memory model and Wasm module layout Learn how communication between host and Wasm module is facilitated Understand the basics of Wasm sandboxing and security Learn the fundamentals of tooling around Wasm, such as WAT and Wasm-pack Create a Wasm module in Rust and consume it from JavaScript, Rust and Golang. Grasp how Kubernetes can be used to orchestrate Wasm-based workloads See how Wasm fits into service mesh.
Note Includes index.
Access Note Access limited to authorized users.
Available in Other Form Print version: 9781484274958
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Chapter 1: Introduction to WebAssembly (Wasm)
Chapter 2: WebAssembly Memory Model and Runtimes
Chapter 3: WebAssembly Text Toolkit
Chapter 4: Rust and WebAssembly
Chapter 5: Golang and WebAssembly
Chapter 6: Writing a Simple Web Application in WebAssembly
Chapter 7: Deploying Wasm Workloads to Kubernetes and Service Mesh
Chapter 8: Summary.

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