traefik/pkg/provider/kubernetes/crd/fixtures/with_externalname.yml

apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: test.route
  namespace: default

spec:
  entryPoints:
    - foo

  routes:
  - match: Host(`foo.com`)
    kind: Rule
    services:
    - name: external-svc
      port: 80