traefik inconsistency
reddit / selfhosted

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SillyLilBear · 2023-11-14 11:14

I'm having some weird issues with Traefik in front of various
containers.  Initially it all worked fine, but as I got more
containers behind Traefik, I started having weird results.  Some
containers that were working would stop responding with "gateway
timeout" yet still could be accessed without HTTP on their port if I
still exposed it.

I seem to have a group of containers that usually are the ones that
stop working (metabase, windmill, nextcloud, invidious, searxng).  A
lot of them continue to work and have never seen them go down.

If I restart containers over and over again or restart traefik will
make some combination of them work again, but I can't get them all
working at once, but sometimes I can get most of them but one working.

For example, I stop all the problematic containers.  I start change
detection, it works fine via ssl.  I start metabase, now change
detection and metabase aren't working.  Traefik logs are giving me no
errors though.  If I shutdown metabase, then try again, change
detection doesn't work, but if I restart traefik it starts working.

All the other containers like homepage, portainer, and so on are
working fine.

​

UPDATE:

I needed to specify docker network for traefik using
\`traefik.docker.network=proxy\` since I had more than one network
specified.

Thanks /u/TearDrainer

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rafipiccolo · 2023-11-14 11:56

good luck for you if you dont show any config :) it looks like a bad
config. like same labels applied to multiple containers

Or you could have some healthchecks failing. That would remove the
container from traefik until it becomes healthy again

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SillyLilBear · 2023-11-14 12:05

I attached three docker compose files to the original post.

If I start one of them, then start the other it shuts down both.  If I
bring it to one, then restart traefik (sometimes just restarting the
one) I can get that one back.  If I start all of my containers, I
usually get 2-3 of the 5 problematic ones to work.

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TearDrainer · 2023-11-14 12:15

If you have multiple networks on a service you need to specifiy on
which one Traefik can reach your service. For example for metabase you
need to add:
`traefik.docker.network=proxy`
Otherwise it will be random and you'll end up with erratic gateway
timeouts.

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SillyLilBear · 2023-11-14 12:16

This sounds like it might be it, will test.  Thanks.