Request: Argo CD documentation

Describe your question/ I use Authentik for many different services and I’m very impressed with the software. However, I have not managed to get it working with Argo CD. If I could get some guidance on this I would happily update the documentation with a guide for Argo CD.

Relevant infos I deploy argo-cd with a helm chart and I use these OIDC credentials. I have created a provider and an application, similarly to how I’ve done it before with Grafana/Harbor… The redirect url I use in Authentik is https://argo-cd.mydomain.com/auth/callback.

server:
  config:
    oidc.config: |
      name: Authentik
      issuer: https://authentik.mydomain.com/application/o/argo-cd/
      clientID: someclientid
      clientSecret: someclientsecret
      requestedIDTokenClaims:
        groups:
          essential: true
      requestedScopes:
        - openid
        - profile
        - email

Steps to reproduce:

1. Go to your argo-cd web app url which in my case is https://argo-cd.mydomain.com/
2. Press the “Login via Authentik” button.
3. You get redirected to this domain https://argo-cd.mydomain.com/auth/login?return_url=https%3A%2F%2Fargo-cd.mydomain.com%2Fapplications
4. You get this output:

Invalid redirect URL: the protocol and host (including port) must match and the path must be within allowed URLs if provided

I have also tried to add the supplied return_url as a redirect url in authentik, but it makes no difference.

Logs I cannot find any relevant logs.

Version and Deployment (please complete the following information):

• authentik helm chart version: 5.2.3
• authentik version: 2021.12.5
• Deployment: helm