174 lines
6.4 KiB
Markdown
174 lines
6.4 KiB
Markdown
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An open source, self-hosted implementation of the Tailscale control server.
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Join our [Discord](https://discord.gg/c84AZQhmpx) server for a chat.
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**Note:** Always select the same GitHub tag as the released version you use
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to ensure you have the correct example configuration and documentation.
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The `main` branch might contain unreleased changes.
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## What is Tailscale
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Tailscale is [a modern VPN](https://tailscale.com/) built on top of
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[Wireguard](https://www.wireguard.com/).
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It [works like an overlay network](https://tailscale.com/blog/how-tailscale-works/)
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between the computers of your networks - using
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[NAT traversal](https://tailscale.com/blog/how-nat-traversal-works/).
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Everything in Tailscale is Open Source, except the GUI clients for proprietary OS
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(Windows and macOS/iOS), and the control server.
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The control server works as an exchange point of Wireguard public keys for the
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nodes in the Tailscale network. It assigns the IP addresses of the clients,
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creates the boundaries between each user, enables sharing machines between users,
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and exposes the advertised routes of your nodes.
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A [Tailscale network (tailnet)](https://tailscale.com/kb/1136/tailnet/) is private
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network which Tailscale assigns to a user in terms of private users or an
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organisation.
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## Design goal
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Headscale aims to implement a self-hosted, open source alternative to the Tailscale
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control server.
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Headscale's goal is to provide self-hosters and hobbyists with an open-source
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server they can use for their projects and labs.
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It implements a narrow scope, a single Tailnet, suitable for a personal use, or a small
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open-source organisation.
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## Supporting Headscale
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If you like `headscale` and find it useful, there is a sponsorship and donation
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buttons available in the repo.
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## Features
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- Full "base" support of Tailscale's features
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- Configurable DNS
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- [Split DNS](https://tailscale.com/kb/1054/dns/#using-dns-settings-in-the-admin-console)
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- Node registration
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- Single-Sign-On (via Open ID Connect)
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- Pre authenticated key
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- Taildrop (File Sharing)
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- [Access control lists](https://tailscale.com/kb/1018/acls/)
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- [MagicDNS](https://tailscale.com/kb/1081/magicdns)
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- Dual stack (IPv4 and IPv6)
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- Routing advertising (including exit nodes)
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- Ephemeral nodes
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- Embedded [DERP server](https://tailscale.com/blog/how-tailscale-works/#encrypted-tcp-relays-derp)
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## Client OS support
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| OS | Supports headscale |
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| ------- | -------------------------------------------------------------------------------------------------- |
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| Linux | Yes |
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| OpenBSD | Yes |
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| FreeBSD | Yes |
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| Windows | Yes (see [docs](./docs/windows-client.md) and `/windows` on your headscale for more information) |
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| Android | Yes (see [docs](./docs/android-client.md)) |
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| macOS | Yes (see [docs](./docs/apple-client.md#macos) and `/apple` on your headscale for more information) |
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| iOS | Yes (see [docs](./docs/apple-client.md#ios) and `/apple` on your headscale for more information) |
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## Running headscale
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**Please note that we do not support nor encourage the use of reverse proxies
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and container to run Headscale.**
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Please have a look at the [`documentation`](https://headscale.net/).
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## Talks
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- Fosdem 2023 (video): [Headscale: How we are using integration testing to reimplement Tailscale](https://fosdem.org/2023/schedule/event/goheadscale/)
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- presented by Juan Font Alonso and Kristoffer Dalby
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## Disclaimer
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This project is not associated with Tailscale Inc.
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However, one of the active maintainers for Headscale [is employed by Tailscale](https://tailscale.com/blog/opensource) and he is allowed to spend work hours contributing to the project. Contributions from this maintainer are reviewed by other maintainers.
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The maintainers work together on setting the direction for the project. The underlying principle is to serve the community of self-hosters, enthusiasts and hobbyists - while having a sustainable project.
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## Contributing
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Please read the [CONTRIBUTING.md](./CONTRIBUTING.md) file.
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### Requirements
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To contribute to headscale you would need the latest version of [Go](https://golang.org)
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and [Buf](https://buf.build)(Protobuf generator).
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We recommend using [Nix](https://nixos.org/) to setup a development environment. This can
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be done with `nix develop`, which will install the tools and give you a shell.
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This guarantees that you will have the same dev env as `headscale` maintainers.
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### Code style
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To ensure we have some consistency with a growing number of contributions,
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this project has adopted linting and style/formatting rules:
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The **Go** code is linted with [`golangci-lint`](https://golangci-lint.run) and
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formatted with [`golines`](https://github.com/segmentio/golines) (width 88) and
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[`gofumpt`](https://github.com/mvdan/gofumpt).
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Please configure your editor to run the tools while developing and make sure to
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run `make lint` and `make fmt` before committing any code.
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The **Proto** code is linted with [`buf`](https://docs.buf.build/lint/overview) and
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formatted with [`clang-format`](https://clang.llvm.org/docs/ClangFormat.html).
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The **rest** (Markdown, YAML, etc) is formatted with [`prettier`](https://prettier.io).
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Check out the `.golangci.yaml` and `Makefile` to see the specific configuration.
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### Install development tools
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- Go
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- Buf
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- Protobuf tools
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Install and activate:
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```shell
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nix develop
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```
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### Testing and building
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Some parts of the project require the generation of Go code from Protobuf
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(if changes are made in `proto/`) and it must be (re-)generated with:
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```shell
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make generate
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```
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**Note**: Please check in changes from `gen/` in a separate commit to make it easier to review.
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To run the tests:
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```shell
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make test
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```
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To build the program:
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```shell
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nix build
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```
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or
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```shell
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make build
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```
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## Contributors
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<a href="https://github.com/juanfont/headscale/graphs/contributors">
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<img src="https://contrib.rocks/image?repo=juanfont/headscale" />
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</a>
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Made with [contrib.rocks](https://contrib.rocks).
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