Hello everybody! I have the following issue: I have two countainers, let’s call them C1 and C2, and they both expose the same port, let’s say 1234. I want to route both of them through a gluetun container. to do this, I added

network_mode: container:gluetun

at each container. But they both expose the same port, so there’s a conflict. Without routing them though gluetun I can just

ports:
  - 1235:1234

but using network_mode this cannot be done. What can I do? The only thing that comes to my mind is to use two gluetun containers, but I’d rather use a single one

thanks in advance!

  • Fedegenerate@lemmynsfw.com
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    2 days ago

    On mobile so you’ll have to forgive format jank.

    It depends how each image handles ports if C1 has the ports set up as 1234:100 and C2 has the ports set up as 1234:500 then:

    service:

    gluetun:

    ports:

     - 1234:100 #c1
     - 1235:500 #c2
    

    […]

    Will solve the conflict

    Sometimes an image will allow you to edit it’s internal ports with an environment so

    service:

    gluetun:

    ports:

      - 1234:1000 #c1
      -1235:1234 #c2
    

    c1:

    environent:

    - UI_PORT=1000
    

    […]

    When both contsiners use the same second number, C1: 1234:80, C21235:80, and neither documents suggest how to change that port, I personally haven’t found a way to resolve that conflict.

    • tubbadu@lemmy.kde.socialOP
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      2 days ago

      thanks for the detailed reply!

      When both contsiners use the same second number, C1: 1234:80, C21235:80, and neither documents suggest how to change that port, I personally haven’t found a way to resolve that conflict.

      unfortunately I’m in this situation, so I guess my only ways are to modify the container by hand or to create two instances of gluetun. thank you very much for your help!