HostSNIRegexp not working for IngressRouteTCP

Traefik Traefik v2
1

have an ingressroutetcp installed. If using a fixed string for HostSNI, the connection works well:

apiVersion: traefik.containo.us/v1alpha1
kind: IngressRouteTCP
metadata:
  name: kafka-route-0
  namespace: infra-components
spec:
  entryPoints:
    - kafka-0
  routes:
    - match: HostSNI(`tnap-dev-01.tnaplab.telekom.de`)
      services:
        - name: onap-strimzi-kafka-0
          namespace: onap
          port: 9094
  tls:
    passthrough: true

However, since I want to make this variable using a wildcard certificate, I changed the match expression to:

HostSNIRegexp(`{subdomain:[[:ascii:]]+.tnaplab.telekom.de}`)

traefik container logs:

time="2022-12-19T11:29:36Z" level=error msg="unknown rule HostSNIRegexp(`{subdomain:[[:ascii:]]+.tnaplab.telekom.de}`)" entryPointName=kafka-0 routerName=infra-components-kafka-route-0-bf0bad0556332126f919@kubernetescrd

I tried some more Regexp's, also tried HostRegexp - all resulting in errors.

/ $ traefik version
Version: 2.6.3
Codename: rocamadour
Go version: go1.17.8
Built: 2022-03-29T13:09:27Z
OS/Arch: linux/amd64

kubernetes version: 1.22.5

any advice appreciated!

2

Hello @jomuench,

The HostSNIRegexp matcher was not available in Traefik v2.6.3, you should update the image version.

3

Dear Tommoulard,
thanks, also now I found in the release notes that HostSNIRegexp has been introduced with v2.7.0 - sorry I didn't catch it myself earlier.

BR -
Michi