Traefik v3 Host rule expects single value

[robflate]

Traefik v3 now expects all rules matchers to have a single value (except Header , HeaderRegexp , Query , and QueryRegexp which take two) and should be explicitly combined using logical operators to mimic previous v2 behaviour;

- "traefik.http.routers.lazyload.rule=Host(`whoami.example.com`, `lazyloader.example.com`)" - Old fails
- "traefik.http.routers.lazyload.rule=Host(`whoami.example.com`) || Host(`lazyloader.example.com`)" - New works

https://doc.traefik.io/traefik/routing/routers/

Using the Quick-Start Docker Compose fails on Traefik v3 until the syntax is corrected.