Docker + WebAssembly
summary
Shows building and pushing a single image with three platforms — linux/amd64, linux/arm64 and wasm — using docker buildx and BuildKit, producing a multi-arch manifest and cross‑compiled C hello binary. Demonstrates extracting a WASM payload from a multistage build, running it with a wasmtime runtime via an experimental docker-wasm plugin, and running the WASM image on a Mac without a VM. Claims WASM is 32-bit today, boots extremely fast, suits IoT/CDN use cases, and runs close to native (roughly under 2x).
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chapters (18)
- 0:00Introduction
- 0:44What is Docker
- 1:27What is WebAssembly
- 2:02Why is it WebAssembly
- 2:52WebAssembly Architecture
- 4:07WebAssembly System Interface
- 6:24What can Docker bring to WebAssembly
- 7:36The biggest problem Docker solves
- 8:52Using Docker in an ecosystem
- 9:34Multistage docker files
- 11:06Multiplatform Docker
- 12:17Multiplatform build
- 13:12Cross compilation
- 14:49Demo
- 22:26Recap
- 23:17CLI plugin
- 23:53Additional links
- 24:32Questions
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