Extending Cloud Native Beyond the “Linux Barrier” to MCUs
summary
A tiny container runtime called Ochre brings cloud-native ideas to MCU-class devices by pairing Zephyr with WebAssembly to run OCI-like modules on Cortex M and ESP32 classes, with smallest modules as low as 300 bytes and interpreted code ~5–10× slower but AOT-compiled modules near native (~20% slowdown). Architecture includes per-module WASM sandboxes, marshalled access to drivers, a simple blob/file and message API for inter-container pipelines, manifest-based capability permissions and image signing, and live deploys with a public code drop planned around June.
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chapters (10)
- 0:00Extending cloud native to MCUs
- 3:49Linux barrier in embedded
- 8:52Traditional embedded limits
- 13:04Cloud native for embedded
- 17:36Containers in embedded
- 25:02WebAssembly on devices
- 31:08WASI and future work
- 31:29Live demo: Ochre runtime
- 41:50Ochre architecture and goals
- 43:55Q&A
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