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Tested with Rancher k3s. See k8s/README.md for site configuration and deployment instructions. Add cert-manager, tls, remote headscale script.
100 lines
2.9 KiB
Markdown
100 lines
2.9 KiB
Markdown
# Deploying Headscale on Kubernetes
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This directory contains [Kustomize](https://kustomize.io) templates that deploy
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Headscale in various configurations.
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These templates currently support Rancher k3s. Other clusters may require
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adaptation, especially around volume claims and ingress.
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Commands below assume this directory is your current working directory.
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# Generate secrets and site configuration
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Run `./init.bash` to generate keys, passwords, and site configuration files.
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Edit `base/site/public.env`, changing `public-hostname` to the public DNS name
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that will be used for your headscale deployment.
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Set `public-proto` to "https" if you're planning to use TLS & Let's Encrypt.
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Configure DERP servers by editing `base/site/derp.yaml` if needed.
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# Add the image to the registry
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You'll somehow need to get `headscale:latest` into your cluster image registry.
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An easy way to do this with k3s:
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- Reconfigure k3s to use docker instead of containerd (`k3s server --docker`)
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- `docker build -t headscale:latest ..` from here
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# Create the namespace
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If it doesn't already exist, `kubectl create ns headscale`.
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# Deploy headscale
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## sqlite
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`kubectl -n headscale apply -k ./sqlite`
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## postgres
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`kubectl -n headscale apply -k ./postgres`
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# TLS & Let's Encrypt
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Test a staging certificate with your configured DNS name and Let's Encrypt.
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`kubectl -n headscale apply -k ./staging-tls`
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Replace with a production certificate.
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`kubectl -n headscale apply -k ./production-tls`
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## Static / custom TLS certificates
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Only Let's Encrypt is supported. If you need other TLS settings, modify or patch the ingress.
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# Administration
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Use the wrapper script to remotely operate headscale to perform administrative
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tasks like creating namespaces, authkeys, etc.
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```
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[c@nix-slate:~/Projects/headscale/k8s]$ ./headscale.bash
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headscale is an open source implementation of the Tailscale control server
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Juan Font Alonso <juanfontalonso@gmail.com> - 2021
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https://gitlab.com/juanfont/headscale
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Usage:
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headscale [command]
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Available Commands:
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help Help about any command
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namespace Manage the namespaces of Headscale
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node Manage the nodes of Headscale
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preauthkey Handle the preauthkeys in Headscale
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routes Manage the routes of Headscale
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serve Launches the headscale server
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version Print the version.
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Flags:
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-h, --help help for headscale
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-o, --output string Output format. Empty for human-readable, 'json' or 'json-line'
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Use "headscale [command] --help" for more information about a command.
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```
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# TODO / Ideas
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- Github action to publish the docker image
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- Interpolate `email:` option to the ClusterIssuer from site configuration.
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This probably needs to be done with a transformer, kustomize vars don't seem to work.
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- Add kustomize examples for cloud-native ingress, load balancer
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- CockroachDB for the backend
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- DERP server deployment
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- Tor hidden service
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