207 lines
4.7 KiB
Markdown
207 lines
4.7 KiB
Markdown
# Running headscale on OpenBSD
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## Goal
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This documentation has the goal of showing a user how-to install and run `headscale` on OpenBSD 7.1.
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In additional to the "get up and running section", there is an optional [rc.d section](#running-headscale-in-the-background-with-rcd)
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describing how to make `headscale` run properly in a server environment.
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## Install `headscale`
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1. Install from ports (Not Recommend)
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As of OpenBSD 7.1, there's a headscale in ports collection, however, it's severely outdated(v0.12.4).
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You can install it via `pkg_add headscale`.
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2. Install from source on OpenBSD 7.1
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```shell
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# Install prerequistes
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# 1. go v1.19+: headscale newer than 0.17 needs go 1.19+ to compile
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# 2. gmake: Makefile in the headscale repo is written in GNU make syntax
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pkg_add -D snap go
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pkg_add gmake
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git clone https://github.com/juanfont/headscale.git
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cd headscale
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# optionally checkout a release
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# option a. you can find offical relase at https://github.com/juanfont/headscale/releases/latest
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# option b. get latest tag, this may be a beta release
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latestTag=$(git describe --tags `git rev-list --tags --max-count=1`)
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git checkout $latestTag
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gmake build
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# make it executable
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chmod a+x headscale
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# copy it to /usr/local/sbin
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cp headscale /usr/local/sbin
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```
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3. Install from source via cross compile
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```shell
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# Install prerequistes
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# 1. go v1.19+: headscale newer than 0.17 needs go 1.19+ to compile
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# 2. gmake: Makefile in the headscale repo is written in GNU make syntax
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git clone https://github.com/juanfont/headscale.git
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cd headscale
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# optionally checkout a release
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# option a. you can find offical relase at https://github.com/juanfont/headscale/releases/latest
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# option b. get latest tag, this may be a beta release
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latestTag=$(git describe --tags `git rev-list --tags --max-count=1`)
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git checkout $latestTag
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make build GOOS=openbsd
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# copy headscale to openbsd machine and put it in /usr/local/sbin
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```
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## Configure and run `headscale`
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1. Prepare a directory to hold `headscale` configuration and the [SQLite](https://www.sqlite.org/) database:
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```shell
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# Directory for configuration
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mkdir -p /etc/headscale
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# Directory for Database, and other variable data (like certificates)
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mkdir -p /var/lib/headscale
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```
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2. Create an empty SQLite database:
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```shell
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touch /var/lib/headscale/db.sqlite
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```
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3. Create a `headscale` configuration:
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```shell
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touch /etc/headscale/config.yaml
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```
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It is **strongly recommended** to copy and modify the [example configuration](../config-example.yaml)
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from the [headscale repository](../)
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4. Start the headscale server:
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```shell
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headscale serve
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```
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This command will start `headscale` in the current terminal session.
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---
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To continue the tutorial, open a new terminal and let it run in the background.
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Alternatively use terminal emulators like [tmux](https://github.com/tmux/tmux).
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To run `headscale` in the background, please follow the steps in the [rc.d section](#running-headscale-in-the-background-with-rcd) before continuing.
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5. Verify `headscale` is running:
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Verify `headscale` is available:
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```shell
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curl http://127.0.0.1:9090/metrics
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```
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6. Create a namespace ([tailnet](https://tailscale.com/kb/1136/tailnet/)):
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```shell
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headscale namespaces create myfirstnamespace
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```
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### Register a machine (normal login)
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On a client machine, execute the `tailscale` login command:
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```shell
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tailscale up --login-server YOUR_HEADSCALE_URL
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```
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Register the machine:
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```shell
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headscale --namespace myfirstnamespace nodes register --key <YOU_+MACHINE_KEY>
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```
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### Register machine using a pre authenticated key
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Generate a key using the command line:
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```shell
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headscale --namespace myfirstnamespace preauthkeys create --reusable --expiration 24h
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```
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This will return a pre-authenticated key that can be used to connect a node to `headscale` during the `tailscale` command:
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```shell
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tailscale up --login-server <YOUR_HEADSCALE_URL> --authkey <YOUR_AUTH_KEY>
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```
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## Running `headscale` in the background with rc.d
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This section demonstrates how to run `headscale` as a service in the background with [rc.d](https://man.openbsd.org/rc.d).
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1. Create a rc.d service at `/etc/rc.d/headscale` containing:
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```shell
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#!/bin/ksh
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daemon="/usr/local/sbin/headscale"
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daemon_logger="daemon.info"
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daemon_user="root"
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daemon_flags="serve"
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daemon_timeout=60
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. /etc/rc.d/rc.subr
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rc_bg=YES
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rc_reload=NO
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rc_cmd $1
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```
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2. `/etc/rc.d/headscale` needs execute permission:
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```shell
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chmod a+x /etc/rc.d/headscale
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```
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3. Start `headscale` service:
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```shell
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rcctl start headscale
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```
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4. Make `headscale` service start at boot:
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```shell
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rcctl enable headscale
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```
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5. Verify the headscale service:
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```shell
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rcctl check headscale
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```
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Verify `headscale` is available:
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```shell
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curl http://127.0.0.1:9090/metrics
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```
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`headscale` will now run in the background and start at boot.
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