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RISC-V on Edge: Porting EVE and Alpine Linux to RISC-V
This document discusses porting the Alpine Linux distribution and EVE operating system to RISC-V processors. It provides an overview of RISC-V and describes how Alpine Linux and EVE-OS are well-suited for edge computing workloads due to their small footprint and use of containers. The document then outlines the steps taken to port Alpine Linux and its packages to RISC-V, including getting key packages like libunwind to build and working with the Alpine community. It concludes by encouraging more development of software for the emerging RISC-V server platforms.
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RISC-V on Edge: Porting EVE and Alpine Linux to RISC-V
- 1. Brought to youby RISC-V on Edge: Porting EVE and Alpine Linux to RISC-V Roman Shaposhnik, CHO and Founder, Zededa Kathy Giori, Ecosystem Engagement Lead, Zededa
- 2. Roman Shaposhnik KathyGiori CHO and Founder, Zededa QoDP, Zededa ■ Supreme hacking guru ■ Ex-wrestler but still all-around nice guy ■ Intellect and interests well beyond tech ■ Craft brew aficionado ■ End-user advocate ■ EE, so breaks sw :) ■ FOSS zealot ■ Bike, hike, row, ...
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- 4. RISC-V Overview ■ RISC-Vis the 5th evolution of the open RISC architecture that has been used to teach chip design in academic (mostly university) settings for decades ● https://riscv.org/about/history/ ■ Industry/universities established the RISC-V Foundation in 2015 to collaborate around the RISC-V ISA specification and extensions
- 5. RISC-V Potential -New But Growing Quickly! ■ Mostly MCU class chipsets so far, but server class coming in 2022 ■ Upstream Linux kernel development can start early on in chip design/devel ■ Niche customizations can optimize for cost, energy efficiency, size, perf, ... Image source: https://riscv.org/exchange/
- 6. Bad News /Good News
- 7. Bad News: HardwareMonoculture is Tough ■ x86 is still extremely dominant ● Docker Hub tells the real story of how much server-side ARM is out there ■ Outside of x86 and ARM ● OpenPOWER ● MIPS, etc. ■ “Just porting UNIX” aka ”C” is no longer enough ● Java ecosystem ● Golang ecosystem ● Rust ecosystem ● Ruby, Python, Perl, etc. ● And then there are things like LuaJIT! ■ Efforts like Linaro are also not the answer
- 8. Good News: “CloudNative” + Specialized OSes ■ We don’t need to wait for Red Hat & Co to give us everything ■ Cloud native ● Everything is a container ● Your infrastructure is immutable ● Container orchestration platform manages the lifecycle ■ Specialized OSes ● CoreOS ● ChromeOS ● AWS, GCP, Azure host OSes ● EVE-OS ■ An OS is no longer a gigantic integration point ● ...and thus we can do everything one container at a time
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- 10. An open OSfor the “Edge”
- 12. containerd IoT Edge ComputeHardware Open API Partition A Partition B EVE managed, workload-centric storage EVE services EVE Controller Disk overhead: 500M RAM overhead: 500M CPU overhead: 1core Hypervisor (Xen, KVM, ACRN) Dom 0 (2021: multiple Dom0s) Dom 2 Dom 1 EVE Controller
- 13. How EVE-OS Blursthe Lines
- 14. Bringing Cloud-Native/Edge UnderOne Umbrella
- 15. EVE-OS Turns YourEdge Nodes Into a Cloud EVE is an open edge computing engine and open API that simplifies the development, orchestration, and security of cloud-native applications on distributed edge hardware. ■ EVE-OS supports containers, VMs, and unikernels ■ Open APIs abstract away complexity and prevent proprietary vendor lock-in ● Any centralized orchestration controller can take advantage of the EVE-OS foundation ■ The flexible, open foundation enables edge deployment IT staff to choose their favorite hardware, applications, and clouds EVE Controller (EVC)
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- 17. Because Modern OSes Don’tWork at the Edge
- 18. OSes No LongerNeeded as Integration Hubs ■ Alpine Linux: Just enough OS for any occasion ■ Immutable infrastructure vs. server state maintenance ● I want my packages to be glorified tarballs, not mine $BTC in their install scripts ● I want my init to get out of the way (let’s face it, I’ll be running kubelet or ... anyway)
- 19. Just Enough PackageManagement ■ Fresh ports served daily
- 20. Good Taste inCore Components: Focus on Small ■ Friends don’t let friends use GNU libc ■ Busybox userland, no-nonsense init system Ubuntu Desktop 4.5GB Alpine Linux 140MB
- 21. Not Obsessed byCross-Compile, But Still Easily Bootstrappable ■ RISC-V port was a pleasant surprise ■ No perimeter physical security ■ Awesome selection of entry points, from container rootfs all the way to no-nonsense hardware bootstrap and iPXE boots
- 22. How We LeveragedAlpine to Build EVE-OS ■ Alpine packages are to Linux what Maven central is to Java ● It would be nice to keep historic versions around though
- 23. Alpine Packages areComposed Inside of OCI Container Images ■ EVE-OS’s unit of integration is an OCI container image ■ Sometimes we rebuild, but thanks to abuild it is super easy ■ Leverages Docker registry for OCI container image management
- 24. Leveraging Linuxkit andContainerd ■ OCI containers are then composed by linuxkit ● linuxkit is a build tool + collection of software based on Alpine ● EVE-OS’s final image is less than 250MB in size ■ At runtime everything is orchestrated by containerd ● OS is immutable (but malleable), user containers are not Source: https://containerd.io/
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- 26. Two SBCs AvailableToday BeagleV Beta (StarFive) Nezha (Allwinner)
- 27. Porting EVE-OS (andtherefore Alpine) to RISC-V [ 8.551801] systemd[1]: Freezing execution.
- 28. Summary: Porting Alpineto RISC-V ■ Got all the packages needed for EVE-OS ■ Have Alpine running on BeagleV Beta (discontinued) and on Nezha ■ Alpine community pitched in and now Edge is available for riscv64 ■ alpine:edge docker image now supports riscv64 ■ Upstream kernel is still a pain ■ A few packages still require work ■ libunwind & co. ■ Postgres and atomics
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- 30. It is Timeto Start Caring About Server RISC-V ■ RISC-V is no longer about qemu: SBCs are available and servers are coming ‘22 ■ RISC-V vs. ARM will be an interesting battle to watch on the server side ■ RISC-V is open and you can make sure the ISA matches your software needs ■ Wholesale porting of the entire open source ecosystem is not going to happen overnight, but we can leverage next generation OSes like EVE-OS today ■ What will your project to bring to RISC-V? ■ … ScyllaDB?
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- 32. Linux Foundation Edge:Project EVE Weekly meetings, Slack chat, GitHub source code, mailing lists ■ EVE Calendar - https://lists.lfedge.org/g/eve/calendar ■ EVE Wiki - https://wiki.lfedge.org/display/EVE/EVE ■ Mailing list - https://lists.lfedge.org/g/eve-tsc/topics ■ Slack - https://slack.lfedge.org/ #eve ... ■ GitHub - https://github.com/lf-edge/eve (and more...) ■ Docker Hub - https://hub.docker.com/r/lfedge/eve
- 33. Brought to youby Roman Shaposhnik Kathy Giori roman@zededa.com kathy@zededa.com @rhatr @kgiori