https://stackoverflow.com/a/72600716
keycloak.auth-server-url=http://localhost:8080
would be enough
We are sorry... page not found... error
Mandatory Config in Keycloak
while hitting we are sorry page not found error
was using http://localhost:8080/auth for keycloak.auth-server
while testing with https://www.keycloak.org/app/
hit error if didn't fill: https://www.keycloak.org/app/
to:
Root URL: https://www.keycloak.org/app/
If cofnig below never in place, will trigger error: Invalid parameter: redirect_uri
Valid Redirect URIs: *