Use traefik as name based virtual hosts with only one public IP and port 443

Traefik Traefik v3 (latest)
1

Hi,

I read trough some support pages and documentation, however I did never find any statement if name based virtual hosting is working with traefik.

My scenario is the following
I only have one public IP available and I want to use the Port 443 for all connections and want to forward for example 3 subdomains to 3 different backends.

f.e.:
external: 172.16.100.100 Port 443 is having an A record of web.example.com, cloud.example.com, document.example.com

Internal 1: 192.168.1.10
Internal 2: 192.168.1.11
Internal 3: 192.168.1.12

so if want to access ttps://web.example.com I should first get to the traefic server, then it should forward the traffic to Internal server 1.
If I want to get to ttps://cloud.example.com it should go to Internal 2
and ttps://document.example.com to internal server 3.

I have read that traefik can do Let's Encrypt handling and hosting the certificates too, however is this working with this scenario or am I better off with apache or nginx/openresty?

If traefik can do that, is there any example configs I can check?

thanks devzero

2

That’s what a reverse proxy like Traefik is doing :slight_smile:

Check simple Traefik example. For proxying to "external" IPs (not containers), you need to use loadbalancer.servers.url in a dynamic config file, loaded with providers.file in static config. Another example.
.

3

Yes, I saw that ones, however they are only providing examples for one domain.
The question in that case is, do I need, for example if I am starting with this:

to add the second host in the layer where the traefik and whoami one is or do I need to add multiple domains in the command part?

4

When you want to use separate servers, you can’t use Traefik Configuration Discovery with containers with labels.

Instead you need to create a router and service for each (sub-) domain in dynamic config file. (Example)