a5872edf2f
Right now the UX for installing NixOS on a headless system is very bad. To enable sshd without physical steps users have to have either physical access or need to be very knowledge-able to figure out how to modify the installation image by hand to put an `sshd.service` symlink in the right directory in /nix/store. This is in particular a problem on ARM SBCs (single board computer) but also other hardware where network is the only meaningful way to access the hardware. This commit enables sshd by default. This does not give anyone access to the NixOS installer since by default. There is no user with a non-empty password or key. It makes it easy however to add ssh keys to the installation image (usb stick, sd-card on arm boards) by simply mounting it and adding a keys to `/root/.ssh/authorized_keys`. Importantly this should not require nix/nixos on the machine that prepare the installation device and even feasiable on non-linux systems by using ext4 third party drivers. Potential new threats: Since this enables sshd by default a potential bug in openssh could lead to remote code execution. Openssh has a very good track-record over the last 20 years, which makes it far more likely that Linux itself would have a remote code execution vulnerability. It is trusted by millions of servers on many operating systems to be exposed to the internet by default. Co-authored-by: Samuel Dionne-Riel <samuel@dionne-riel.com> |
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| .github | ||
| doc | ||
| lib | ||
| maintainers | ||
| nixos | ||
| pkgs | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .version | ||
| COPYING | ||
| default.nix | ||
| flake.nix | ||
| README.md | ||
Nixpkgs is a collection of over 40,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.
Manuals
- NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
- Nixpkgs Manual - contributing to Nixpkgs and using programming-language-specific Nix expressions
- Nix Package Manager Manual - how to write Nix expressions (programs), and how to use Nix command line tools
Community
- Discourse Forum
- IRC - #nixos on freenode.net
- NixOS Weekly
- Community-maintained wiki
- Community-maintained list of ways to get in touch (Discord, Matrix, Telegram, other IRC channels, etc.)
Other Project Repositories
The sources of all official Nix-related projects are in the NixOS organization on GitHub. Here are some of the main ones:
- Nix - the purely functional package manager
- NixOps - the tool to remotely deploy NixOS machines
- nixos-hardware - NixOS profiles to optimize settings for different hardware
- Nix RFCs - the formal process for making substantial changes to the community
- NixOS homepage - the NixOS.org website
- hydra - our continuous integration system
- NixOS Artwork - NixOS artwork
Continuous Integration and Distribution
Nixpkgs and NixOS are built and tested by our continuous integration system, Hydra.
- Continuous package builds for unstable/master
- Continuous package builds for the NixOS 20.03 release
- Tests for unstable/master
- Tests for the NixOS 20.03 release
Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.
Contributing
Nixpkgs is among the most active projects on GitHub. While thousands of open issues and pull requests might seem a lot at first, it helps consider it in the context of the scope of the project. Nixpkgs describes how to build over 40,000 pieces of software and implements a Linux distribution. The GitHub Insights page gives a sense of the project activity.
Community contributions are always welcome through GitHub Issues and Pull Requests. When pull requests are made, our tooling automation bot, OfBorg will perform various checks to help ensure expression quality.
The Nixpkgs maintainers are people who have assigned themselves to maintain specific individual packages. We encourage people who care about a package to assign themselves as a maintainer. When a pull request is made against a package, OfBorg will notify the appropriate maintainer(s). The Nixpkgs committers are people who have been given permission to merge.
Most contributions are based on and merged into these branches:
masteris the main branch where all small contributions gostagingis branched from master, changes that have a big impact on Hydra builds go to this branchstaging-nextis branched from staging and only fixes to stabilize and security fixes with a big impact on Hydra builds should be contributed to this branch. This branch is merged into master when deemed of sufficiently high quality
For more information about contributing to the project, please visit the contributing page.
Donations
The infrastructure for NixOS and related projects is maintained by a nonprofit organization, the NixOS Foundation. To ensure the continuity and expansion of the NixOS infrastructure, we are looking for donations to our organization.
You can donate to the NixOS foundation by using Open Collective:
License
Nixpkgs is licensed under the MIT License.
Note: MIT license does not apply to the packages built by Nixpkgs, merely to the files in this repository (the Nix expressions, build scripts, NixOS modules, etc.). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.