integration: authentik (#126)

Author: CodeShellDev

docs/integrations/authentik/authentik.md

@@ -0,0 +1,55 @@
+---
+title: Authentik
+---
+
+# Authentik
+
+This guide will show you how to use **Secured Signal API** as an Authenticator.
+
+## Setup
+
+### 1. Stage
+
+First you need to create the SMS Authenticator Setup Stage.
+
+![Stage 1](/integrations/authentik/stage_1.png)
+
+Then you need to fill in your **API TOKEN** and your **sender number** (make sure to use the `Generic` Provider).
+Point the **API URL** to your Secured Signal API `/v2/send` endpoint.
+
+![Stage 2](/integrations/authentik/stage_2.png)
+
+### 2. Flow
+
+After you have created the stage you need to use it in a setup flow.
+Create one like in the screenshot below.
+
+![Flow](/integrations/authentik/flow.png)
+
+Note down your slug, you will need it later...
+
+Once you've done that you will have to bind the previously created stage to the flow like so:
+
+![Binding](/integrations/authentik/binding.png)
+
+### 3. Webhook Mapping
+
+Now we have to create a custom **Webhook Mapping**:
+
+![Webhook Mapping](/integrations/authentik/mapping.png)
+
+### 4. Enable SMS-Verification
+
+To be able to use the newly created authenticator you need to enable **SMS-based Authenticators** in `default-authentication-mfa-validation`.
+
+![MFA Settings](/integrations/authentik/mfa_stage.png)
+
+Check `SMS-based Authenticators` and add your `signal-authentication-setup` stage.
+
+## Register
+
+After completing the Setup, you can finally go to `https://authentik.domain.com/if/flow/<your-slug>` and finish the SMS Authenticator Setup.
+
+## Sources
+
+- https://docs.goauthentik.io/add-secure-apps/flows-stages/stages/authenticator_sms