LoGin
f62b190796
* fix(namespace): make mount propagation transactional Prepare every propagation clone, peer/slave registration, and mount edge capacity before publishing topology changes. Preserve the prepared root wrapper and exact covering mount so tuck-under rollback restores stacks, backlinks, flags, and edge counts without allocating. Resolve skipped slave layers through exact mount and peer-group identities to match Linux propagation semantics. Split move propagation into prepare, commit, and abort phases, retain the old edge for allocation-free rollback, and reserve private destination edges before detaching the source. Add kernel coverage for skipped peer/slave sources, move prepare abort, and exact tuck-under restoration. Extend the move dunitest to verify that propagated moves retain their complete child mount subtree. Signed-off-by: longjin <longjin@dragonos.org> * fix(namespace): track latest propagated peer source Update each peer-group source after a successful propagation clone so slaves of uncovered peers inherit from the nearest materialized peer, matching Linux propagate_one() last_source semantics. Add a regression test for the skipped-peer topology and apply the repository formatter required by the architecture format checks. Signed-off-by: longjin <longjin@dragonos.org> * fix(vfs): satisfy mount clippy checks Remove two redundant references in the prepared cover attach and rollback paths so the x86_64 CI lint gate accepts the transactional mount implementation. Signed-off-by: longjin <longjin@dragonos.org> --------- Signed-off-by: longjin <longjin@dragonos.org>
Lightweight Cloud-Native Kernel
DragonOS
Languages 中文|English
DragonOS is a 64-bit operating system with a completely independent kernel, designed for lightweight cloud computing scenarios, offering Linux binary compatibility. It aims to provide lightweight, high-performance solutions for containerized workloads. Developed using Rust for enhanced reliability.
The DragonOS open-source community was established in July 2022 and is entirely commercially neutral. We warmly welcome interested developers and enthusiasts to join us!
DragonOS features excellent and comprehensive architectural design. Compared to other systems of similar scale, DragonOS supports eBPF and virtualization. Currently, we are actively advancing container support, cloud platform compatibility, RISC-V support, as well as porting compilers and application software. Our goal is to achieve large-scale production environment deployment within five years.
DragonOS is rapidly evolving under community-driven development. Currently, DragonOS has implemented approximately 1/4 of Linux interfaces. In the future, we will provide 100% Linux compatibility along with new features.
🌟 Want to quickly experience DragonOS? Visit DragonOS Playground to launch DragonOS in the cloud with zero configuration and experience the latest nightly build!
📰 Community News
- 2025-12-17: ☁️ DragonOS Playground is now live! Experience DragonOS with zero configuration on CNB platform, with daily nightly build updates! Try it now →
- 2025-11-20: 🚀 DragonOS 0.3.0 has been released! Now supports running Go programs directly!
- 2025-11-18: 📊 DragonOS CI Dashboard is now live! Check out DragonOS Linux compatibility data now!
How to Run?
🌟 Method 1: Cloud-Native Development (Recommended)
Zero configuration, one-click launch! Experience DragonOS on the CNB cloud-native development platform - the simplest and fastest way, no local dependencies required!
Method 2: Local Build
If you prefer to build and run DragonOS locally, you can refer to the following documentation:
Want to Contribute?
Read the DragonOS Community Introduction Document carefully to understand how the community operates and how you can contribute!
If you'd like to join us, check out the issues and participate in discussions or share your ideas. You can also visit the DragonOS forum to stay updated on development progress and tasks: https://bbs.dragonos.org.cn
You can also bring your creativity and ideas to discuss with the community and contribute new features to DragonOS.
Sites
- Official Website: DragonOS.org
- Documentation: docs.dragonos.org
- Community Introduction: community.dragonos.org
- QQ Group: 476358494
How to Connect with the Community?
Please read the Contributor Guide~
- You can find contact details for members of various committees in the Community Management Team section.
- You can also locate the contact information for leaders of specific community groups via the SIGs and WGs pages.
Contributor List
Contributors to DragonOS-Community/DragonOS · GitHub
Sponsorship
DragonOS is a non-profit open-source project, and its development relies on financial support. All sponsors will be publicly acknowledged. Every contribution you make will help advance DragonOS!
Where Will Sponsorship Funds Be Used?
We guarantee that all sponsorship funds and items will be used for:
- Event organization, cloud service expenses, and any other purposes beneficial to the development and growth of the DragonOS community.
🌟 Sponsor List
Special thanks to these generous financial supporters (in reverse chronological order):
- 中国雅云 雅安大数据产业园 - 🥇 Long-term supporter (since 2023)
- Tencent Cloud EdgeOne EdgeOne CDN by TencentCloud
CDN Sponsor
This project's CDN acceleration and security protection are sponsored by Tencent EdgeOne.
Individual Sponsors List
See Supporters.md
Open Source License Notice
This project is open-sourced under the GPLv2 license. You are welcome to use the code in compliance with the open-source license!
If you encounter any violations of the open-source license, we encourage you to email pmc@dragonos.org to report them. Let's work together to build a trustworthy open-source community.
👩💻 Contributors
"Open source shines because of you!" ✨
Thanks to all developers who submitted code, fixed issues, or reviewed PRs: