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docs: fix tailscale oidc typos and inaccuracies (#5367) 

Adjusts some inaccuracies and inconsistencies.

Fixes #5359

Signed-off-by: Amir Zarrinkafsh <nightah@me.com>
pull/5366/head
Amir Zarrinkafsh 2023-05-03 11:29:55 +10:00 committed by GitHub
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docs/content/en/integration/openid-connect/tailscale/index.md
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@ -17,7 +17,7 @@ community: true
* [Authelia] * [Authelia]
* [v4.37.5](https://github.com/authelia/authelia/releases/tag/v4.37.5) * [v4.37.5](https://github.com/authelia/authelia/releases/tag/v4.37.5)
* [Tailscale] - Note: Version not important, since configuration is via the web UI * [Tailscale] - **Note:** Version not important, since configuration is via the WebUI
* [1.38.4](https://github.com/tailscale/tailscale/releases/tag/v1.38.4) * [1.38.4](https://github.com/tailscale/tailscale/releases/tag/v1.38.4)
## Before You Begin ## Before You Begin
@ -36,35 +36,39 @@ This example makes the following assumptions:
## Configuration ## Configuration
The configuration in Authelia is straightforwarded: Tailscale is just another `identity_provider/oidc` entry. Complicating things is the necessary WebFinger reply for your domain - see the following [Application](#application) section. The configuration in Authelia is straight forward, Tailscale is just another `identity_provider/oidc` entry.
Tailscale also requires a WebFinger reply for your domain - see the following [Application](#application)
section.
### Application ### Application
To configure [Tailscale] to utilize Authelia as an [OpenID Connect 1.0] Provider, you will need a public WebFinger reply for your domain (see [RFC 7033](https://www.rfc-editor.org/rfc/rfc7033#section-3.1)) and point it to Authelia. The steps necessary are outlined in the Tailscale documentation on [Custom OIDC providers](https://tailscale.com/kb/1240/sso-custom-oidc/). This WebFinger reply is not generated by Authelia, so your external webserver hosted at the root of your domain will need to generate the reponse (Check [See also](#see-also) for example implementations). The following steps are necessary to get Tailscale working with Authelia: To configure [Tailscale] to utilize Authelia as a [OpenID Connect 1.0] Provider, you will need a public WebFinger reply
for your domain (see [RFC7033 Section 3.1]) and point it to Authelia. The steps necessary are outlined in the Tailscale
documentation on [Custom OIDC providers KB article]. This WebFinger reply is not generated by Authelia, so your external
webserver hosted at the root of your domain will need to generate the response (Check [See also](#see-also) for example
implementations). The following steps are necessary to get Tailscale working with Authelia:
1. Your domain will need to reply to a WebFinger request for your Authelia account 1. Your domain will need to reply to a WebFinger request for your Authelia account
2. Your domain root is `example.com` and the Authelia account in question is `user@example.com`, the WebFinger request will be: `https://example.com/.well-known/webfinger/?resource=acct:user@example.com` (the complete request is `https://example.com/.well-known/webfinger?rel=http%3A%2F%2Fopenid.net%2Fspecs%2Fconnect%2F1.0%2Fissuer&resource=acct%3Auser%40example.com`) 2. Your domain root is `example.com` and the Authelia account in question is `user@example.com` the WebFinger request
will be: `https://example.com/.well-known/webfinger/?resource=acct:user@example.com the complete request is `https://example.com/.well-known/webfinger?rel=http%3A%2F%2Fopenid.net%2Fspecs%2Fconnect%2F1.0%2Fissuer&resource=acct%3Auser%40example.com`
3. The WebFinger request needs to be answered with the following example reply: 3. The WebFinger request needs to be answered with the following example reply:
``` ```json
{ {
"subject" : "acct:user@example.com", "subject": "acct:user@example.com",
"links" : "links": [{
[ "rel": "http://openid.net/specs/connect/1.0/issuer",
{ "href": "https://auth.example.com"
"rel" : "http://openid.net/specs/connect/1.0/issuer", }]
"href" : "https://auth.example.com"
}
]
} }
``` ```
4. For any other users that you want to add to Tailscale, you will need to to provide similar WebFinger replies (e.g. for `user2@example.com` or `user3@example.com`) 4. For any other users that you want to add to Tailscale, you will need to provide similar WebFinger replies (e.g. for `user2@example.com` or `user3@example.com`)
5. Once you have the WebFinger reply set up and your [Authelia OpenID Connect Discovery endpoint](https://www.authelia.com/integration/openid-connect/introduction/#well-known-discovery-endpoints) is working (e.g. `https://auth.example.com/.well-known/openid-configuration`), you can sign up for a **new Tailnet** (currently migration isn't supported) via the link: [Sign up with OIDC](https://login.tailscale.com/start/oidc) where you will see the following screen: 5. Once you have the WebFinger reply set up and your [Authelia OpenID Connect Discovery endpoint](https://www.authelia.com/integration/openid-connect/introduction/#well-known-discovery-endpoints) is working (e.g. `https://auth.example.com/.well-known/openid-configuration`), you can sign up for a **new Tailnet** (migration can only be done if the Tailnet is associated with a custom domain) via the link: [Sign up with OIDC](https://login.tailscale.com/start/oidc) where you will see the following screen: \
{{< figure src="tailscale_signup_1.png" alt="Tailscale Signup Screen 1" width="300" >}} {{< figure src="tailscale_signup_1.png" alt="Tailscale Signup Screen 1" width="300" >}} \
**Note:** Even though the WebFinger URL displayed is `https://example.com/.well-known/webfinger`, the actual GET request will be including request parameters, most importantly `resource`. **Note:** Even though the WebFinger URL displayed is `https://example.com/.well-known/webfinger`, the actual GET request will be including request parameters, most importantly `resource`.
6. After clicking on **Get OIDC Issuer**, Tailscale will fetch the WebFinger reply via `https://example.com/.well-known/webfinger/?resource=acct:user@example.com` and follow the set `href` to `https://auth.example.com/.well-known/openid-configuration`. 6. After clicking on **Get OIDC Issuer**, Tailscale will fetch the WebFinger reply via `https://example.com/.well-known/webfinger/?resource=acct:user@example.com` and follow the set `href` to `https://auth.example.com/.well-known/openid-configuration`. \
**Note:** make sure that the `href` URL matches the `issuer` URL returned from the Authelia OIDC dicsovery endpoint **Note:** Make sure that the `href` URL matches the `issuer` URL returned from the Authelia OIDC discovery endpoint
7. On the next screen you will need to add your client ID & secret configured in Authelia to finish the OIDC provider registration in [Tailscale]. See the following example screenshot: 7. On the next screen you will need to add your client ID & secret configured in Authelia to finish the OIDC provider registration in [Tailscale]. See the following example screenshot: \
{{< figure src="tailscale_signup_2.png" alt="Tailscale Signup Screen 2" width="300" >}} {{< figure src="tailscale_signup_2.png" alt="Tailscale Signup Screen 2" width="300" >}}
@ -93,10 +97,12 @@ identity_providers:
## See Also ## See Also
- [Tailscale] [Custom OIDC Provider Knowledge Base entry](https://tailscale.com/kb/1240/sso-custom-oidc/): - [Tailscale] [Custom OIDC providers KB article]
- [RFC 7033, Identity Provider Discovery for OpenID Connect](https://www.rfc-editor.org/rfc/rfc7033#section-3.1) - [RFC7033 Section 3.1] _WebFinger: Identity Provider Discovery for OpenID Connect_
- [WebFinger example implementations](https://webfinger.net/code/) - [WebFinger example implementations](https://webfinger.net/code/)
[Authelia]: https://www.authelia.com [Authelia]: https://www.authelia.com
[Tailscale]: https://tailscale.com [Tailscale]: https://tailscale.com
[Custom OIDC providers KB article]: https://tailscale.com/kb/1240/sso-custom-oidc/
[RFC7033 Section 3.1]: https://datatracker.ietf.org/doc/html/rfc7033#section-3.1
[OpenID Connect 1.0]: ../../openid-connect/introduction.md [OpenID Connect 1.0]: ../../openid-connect/introduction.md