Internal Server Error When Reverse Proxying with Traefik about docker-unms HOT 3 CLOSED

Had the same issue. Tried all sorts of combinations of Traefik labels but couldn't get it working.

Ended up explicitly defining a backend/frontend pair in traefik.toml which works without any issues. There are a couple of services I've had to do this for since the Traefik labels haven't worked (e.g. Nextcloud, Unifi Controller).

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@danteali Would you have an example of that .toml file? I'm struggling to get it online behind my Traefik reverse proxy as well.

from docker-unms.

@danteali Would you have an example of that .toml file? I'm struggling to get it online behind my Traefik reverse proxy as well.

Yeah, no problem. Just add the following to your traefik.toml file in the backend and frontend sections, point the backend at your internal UNMS address and port (I changed my UNMS port to 8040)...

[backends]
  [backends.unms]
    [backends.unms.servers]
      [backends.unms.servers.server1]
      url = "https://192.168.0.10:8040/"

[frontends]
  [frontends.unms]
  backend = "unms"
  passHostHeader = true
    [frontends.unms.routes]
      [frontends.unms.routes.route1]
      rule = "Host:unms.domain.com"

Defining frontends and backends like this allows you to use Traefik for any services on your internal network. It's really handy. Even though UNMS, and pihole docker containers run on the same server with Traefik, this was the only way I could expose them for external access. The labels wouldn't work for me.

Also remember that you can add authentication to the services exposed through Traefik like this. For example, pihole doesn't really have any authentication for it's admin page (UNMS has it's own username/password page) so you can add basic authentication by adding these lines to the [frontend] section...

  [frontends.pihole]
  backend = "pihole"
  passHostHeader = true
    [frontends.pihole.routes]
      [frontends.pihole.routes.route1]
      rule = "Host:pihole.domain.com"
    [frontends.pihole.auth.basic]
      removeHeader = true
      users = ["<username>:<password hash>"]

Generate the password hash with:
htpasswd -nb <username> '<password>'

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