OAUTH2 Authentication with authentik

[chrisn-au]

For the record - google was not a great help here. The commonly suggested soln (adding the explicit ip to the port definition in pihole) did not work for me, however adding a explicit dns record in the node-red service of the docker compose file worked.

For anyone who has a similar issue

dns:
    - 192.168.2.50

Thx again