A service deploys perfectly clean. Pods Running, Endpoints populated, the Certificate resource says Ready: True , the IngressRoute shows no events. Then you curl the hostname and get back a 404 page rendered by your SSO provider, which you never attached to that route.
Source: [Dev.to](https://dev.to/futhgar/traefik-host-collision-why-duplicate-host-rules-break-ingressroutes-1jnd)