Let's Build a Linux Just for Wasm!
Talkat WasmCon 2023 · on Thursday, 2023-09-07· at 14:15· Grand Ballroom F, Hyatt Regency Bellevue, 900 Bellevue Way NE·
summary
Proposes a minimal Flatcar-based Wasm distro that bakes individual runtime/tool layers (examples: Wasmtime and Wasmer layers, Lunatic, Spin, wasm-festival) into an immutable system extension image, boots under QEMU, and enforces immutability (rm -f userbin fails). Uses systemd/system extensions and an Omaha-style updater via Nebraska/Omaha updates for automated rollforward/rollback. Demonstrations show layer baking, network-pulled boots and immutable images succeed; live auto-update demo stalls due to network issues but update mechanism and rollbacks are implemented.
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chapters (9)
- 0:00Start
- 4:28"Container-optimized Linux"?
- 12:33Let's make it real
- 16:35Baking the stuff for eating
- 17:10Baking the recipe
- 20:21Setting the table
- 20:49Serving images using ignition files
- 27:26Let's make it professional
- 37:41How to play with Flatcar Wasm
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