Mixture of host and path based routing rules in traefik docker labels

Question

I'm trying to create a frontend rule using docker labels that directs both a couple host based routes and some path based routes from a domain to one backend but I'm having trouble getting the right magic for what turn out to be kind of complex rules.

frontend.rule="Host:HostA.domain,HostB.domain,HostC.domain,Host:svc.domain;PathPrefix=/api/users, Host:svc.domain;PathPrefix=/api/other"

This seemed like the right combination of or and And logic but I seem to be wrong.

Answer 1

• , is the OR operator (works only inside a matcher, ex: Host:foo.com,bar.com )
• ; is the AND operator (works only between matchers, ex: Host:foo.com;Path:/bar )

Host:api.service;PathPrefixStrip:/foo

To have a OR between matchers you need to use segment labels:

   # ...
   labels:
     - "traefik.enable=true"
     - "traefik.port=80"
     - "traefik.foo.frontend.rule=Host:api.mydomain.com"
     - "traefik.bar.frontend.rule=Host:www.mydomain.com,m.mydomain.com;PathPrefixStrp:/_"
   # ...

Documentation links:

• https://docs.traefik.io/v1.6/basics/#matchers
• https://docs.traefik.io/v1.6/basics/#combining-multiple-rules
• https://docs.traefik.io/v1.6/configuration/backends/docker/#on-containers-with-multiple-ports-segment-labels