How to get multiple host headers working for docker labels?

[dky]

Hello, I have multiple domains setup to one backend.
I'm trying to get multiple host headers to work using docker labels but no luck.

Here is what I'm trying:

   labels:
      - traefik.backend=test
      - traefik.frontend.rule=Host:example.com.com
      - traefik.port=80

Attempted this below but it only uses example2.com and not example.com.

  labels:
      - traefik.backend=test
      - traefik.frontend.rule=Host:example.com.com
      - traefik.frontend.rule=Host:example2.com.com
      - traefik.port=80

Any ideas on how I can get this working?

Thanks

[emilevauge]

@dky The documentation shows that you can use traefik.frontend.rule=example.com,example2.com ;)

[dky]

@emilevauge, Thanks, I'll retry that, I think I gave that a shot too.

[dky]

@emilevague, thanks, everything is working as planned. I'll dig harder throught he docs next time.

[ghost]

Hello @emilevauge ,
doing it like traefik.frontend.rule=example.com,example2.com seems to be bad for automated parsing, and rather hard to read.
Can it be done like
traefik.frontend.rule1=example.com
traefik.frontend.rule2=example2.com

?
Imagine that I have a hundred of hosts in traefik.frontend.rule, and several docker clusters with same hundred in each. And then I need to move one host from one cluster to another. Won't be funny if that hostname will be in one biiiig line with hosts.

[ldez]

Thanks for your interest in Traefik 😃

This issue is closed. Please discuss this in :

• the Traefik community Slack channel
• Stack Overflow using the "traefik" tag

[jdahlin]

The documentation is not particularly clear here, is it:

traefik.frontend.rule1=Host:example.com,Host:example2.com 

OR

traefik.frontend.rule1=Host:example.com,example2.com 

Examples would be helpful.

Just my two cents.

[linanw]

You may use:

traefik.frontend.rule1=Host:example.com;Host:example2.com

OR

traefik.frontend.rule1=Host:example.com,example2.com

Careful the separator ; or ,

[nicklayb]

Y'all having different version. Sometime you have
traefik.frontend.rule1=Host:example.com,example2.com traefik.frontend.rule1
traefik.frontend.rule=example.com,example2.com without the Host:
traefik.frontend.rule=Host:example.com,example2.com with the Host: but with rule instead of rule1.

Is it .rule or .rule1?
With or without Host:?

[ldez]

Thanks for your interest in Traefik 😃

This issue is closed. Please discuss this in the Traefik community Slack

---

https://docs.traefik.io/v1.7/configuration/backends/docker/#on-containers

traefik.frontend.rule=Host:example.com,example2.com

[Nuxij]

Why restrict us to Slack :( I'd also love to see the multiple label thing become possible. I don't mind if we do it like the 'route' configuration examples:

traefik.frontend.rule.alpha=Host....
or just

traefik.frontend.rule1=Host....
traefik.frontend.rule2=Host...

[gentunian]

I agree with following issues in github, or at least in another slack channel. Slack channel is like talking to the wall, you get no attention and everyone is asking its own question/issue.

I'm interested in this discussion, came here today. Imagine find this topic in slack.

Commenting this may be marked as offtopic like @grimmy , but as for now, it seems that documentation has changed and it's not in the doc link shared by @emilevauge :

[ldez]

https://docs.traefik.io/v1.7/basics/#matchers

[sgohl]

https://docs.traefik.io/v1.7/basics/#matchers 404

Problem still remains. its actually unclear how to write multiple different domains so that Traefik will not handle another domain as SAN

[gentunian]

@Port22 404 error is gone.

[kooskaspers]

https://docs.traefik.io/v1.7/basics/#matchers 404

Problem still remains. its actually unclear how to write multiple different domains so that Traefik will not handle another domain as SAN

This works fine here:

• "traefik.basic.frontend.rule=Host:dsmr.lan,test.lan"

tried this syntax already?

[sgohl]

Yes, but I have to say that I am using two hosts while the first public domain (like swarm.example.com) must have letsencrypt-acme, and the second is an intranet-domain (like swarm.intranet.lan) with self-made CA certificate, which is setup in the traefik.toml

    [entryPoints.https.tls]
      minVersion = "VersionTLS1"
      [[entryPoints.https.tls.certificates]]
      CertFile = "/ssl/pem"
      KeyFile = "/ssl/key"