authentik/website/integrations/services/komga/index.md

title	sidebar_label	support_level
Integrate with Komga	Komga	community

What is Komga

Komga is an open-source comic and manga server that lets users organize, read, and stream their digital comic collections with ease.

-- https://komga.org/

Preparation

The following placeholders are used in this guide:

• komga.company is the FQDN of the Komga installation.
• authentik.company is the FQDN of the authentik installation.

:::note This documentation lists only the settings that you need to change from their default values. Be aware that any changes other than those explicitly mentioned in this guide could cause issues accessing your application. :::

authentik configuration

1. From the authentik Admin interface, navigate to Applications -> Applications.
2. Use the wizard to create a new application and provider. During this process:
   • Note the Client ID, Client Secret, and slug values because they will be required later.
   • Set the redirect URI to https://komga.company/login/oauth2/code/authentik.
   • Select any available signing key.

Komga configuration

To configure Komga, update its application.yml file to include the following options:

:::info All configuration options can be found in Komga's OAuth2 Advanced configuration documentation. :::

:::warning You can configure Komga to use either the sub or preferred_username as the UID field under user-name-attribute. When using preferred_username as the user identifier, ensure that the Allow users to change username setting is disabled to prevent authentication issues. The sub option uses a unique, stable identifier for the user, while preferred_username uses the username configured in authentik. :::

spring:
    security:
        oauth2:
            client:
                registration:
                    authentik:
                        provider: authentik
                        client-id: <client id>
                        client-secret: <client secret>
                        client-name: authentik
                        scope: openid,email,profile
                        authorization-grant-type: authorization_code
                        redirect-uri: "{baseUrl}/{action}/oauth2/code/{registrationId}"
                provider:
                    authentik:
                        user-name-attribute: preferred_username
                        issuer-uri: https://authentik.company/application/o/<application slug>/