this post was submitted on 15 Jul 2023
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23
Stupid Question - Routing subdomains to various services on a single host. (lemmy.dbzer0.com)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/selfhosted
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Edit

Damn, Lemmy is so awesome!

Thanks so much everybody for the quick amazing replies! I will look into the suggested reverse proxy options and get something set up.

Thanks again for all of the insight!

End edit

Let's say I have multiple services and applications running on my server.

In this case, I'm using docker and have layer 2 docker network to give each container a dedicated IP.

Internally, I can navigate to the local IP to utilize or access them.

How would I go about accessing each service through the internet using different subdomains? Right now all subdomains and the primary domain route directly to my external IP and seem to all resolve to the same service /application.

I imagine this would have to be done with some sort of routing rules but would love some insight! I have a UniFi Dream Router.

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[–] [email protected] 11 points 1 year ago (2 children)

Look into traefik. Once it's set up I add a few labels to my compose files and traefik handles the rest.

[–] bjeanes 5 points 1 year ago

My thoughts also. Traefik docs can be a bit confusing if you're coming to it with no context, though, but it's definitely the ideal option for just routing to a bunch of docker containers!

[–] [email protected] 4 points 1 year ago (1 children)

Im using traefik as reverse proxy for everything, docker container or not.

Bonus: If you own a domain name, you can get https certificates without opening http ports to the outside via dns challenges. You can even get certs for wildcard domains like *.example.com

[–] theRealBassist 4 points 1 year ago (1 children)

Do you know of a good reference for using Traefik with non-docker uses? I've struggled to figure that one out lol

[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

What you need is a so called File Provider. The linked blog post seems to summarize this pretty good, at least better than the original docs.

You define your path as a "router" and the ip traefik should point to as "service". Optionally, you can define all kinds of "middlewares". Example:

# As YAML Configuration File
http:
  routers:
    router1:
      service: myService
      middlewares:
        - "foo-add-prefix"
      rule: "Host(`example.com`)"

  middlewares:
    foo-add-prefix:
      addPrefix:
        prefix: "/foo"

  services:
    service1:
      loadBalancer:
        servers:
          - url: "http://127.0.0.1:80"
[–] [email protected] 10 points 1 year ago (1 children)

Take a look at caddy server or the nginx proxy manager and set up a reverse proxy.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

I ended up setting Caddy. Super easy to add to the Caddyfile (config) and it just works!

I'm going to also look into Traefik as it looks like it has a nice gui.

Thanks a lot!

[–] [email protected] 7 points 1 year ago

My understanding is that you'd need a combination of a reverse proxy and a general proxy manager. Nginx Proxy Manager handles a lot of these tasks for me on my website, with most of my use being a simple redirect though.

[–] [email protected] 5 points 1 year ago

What you need is a reverse proxy server. All the major web servers have this feature.

[–] [email protected] 4 points 1 year ago

Damn, Lemmy is so awesome!

Thanks so much everybody for the quick amazing replies! I will look into the suggested reverse proxy options and get something set up.

Thanks again for all of the insight!

[–] breadsmasher 4 points 1 year ago* (last edited 1 year ago)

Do you have a reverse proxy? Thats the bit you need

https://stackoverflow.com/questions/55647323/how-to-setup-dynamic-subdomains-in-docker-with-nginx#55648213

And cloudflare possibly

https://developers.cloudflare.com/dns/zone-setups/subdomain-setup/

[–] TheInsane42 3 points 1 year ago* (last edited 1 year ago)

I'm an apache user myself. It's used for static websites as well as other services bia reverse proxying. Letsencrypt for the certs and ssl termination in apache. I'm even considering doing all ipv6 only.

Any webserver or reverse proxy will do though.

[–] netburnr 2 points 1 year ago

I like virtualmin as a web based solution. Includes proxy options

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