How to configure which network to use when starting traefik binary?

[gajus]

I am facing an issue using traefik binary when docker containers are on a different network.

This issue is described in detail here, #602 (comment).

To sum up the issue:

./dist/traefik --debug --docker.swarmmode

docker network create --driver overlay web
docker service create --network web --name whoami1 --label "traefik.frontend.rule=Host:whoami.anuary.com" --label "traefik.port=80" emilevauge/whoami

and then trying to access the started service:

$ curl -H 'Host: whoami.anuary.com' -v http://46.105.104.77
* Rebuilt URL to: http://46.105.104.77/
*   Trying 46.105.104.77...
* Connected to 46.105.104.77 (46.105.104.77) port 80 (#0)
> GET / HTTP/1.1
> Host: whoami.anuary.com
> User-Agent: curl/7.50.1
> Accept: */*
>
< HTTP/1.1 504 Gateway Timeout
< Date: Wed, 21 Sep 2016 19:35:06 GMT
< Content-Length: 15
< Content-Type: text/plain; charset=utf-8
<
* Connection #0 to host 46.105.104.77 left intact
Gateway Timeout%

which produces the following logs:

DEBU[2016-09-21T21:34:41+02:00] Error loading load balancer method '<nil>' for backend backend-whoami1: Invalid method, using default. Using default wrr.
DEBU[2016-09-21T21:34:41+02:00] Configuration received from provider docker: {"backends":{"backend-whoami1":{"servers":{"server-whoami1":{"url":"http://10.0.0.2:80","weight":1}},"loadBalancer":{"method":"wrr"}}},"frontends":{"frontend-Host-whoami-anuary-com":{"entryPoints":["http"],"backend":"backend-whoami1","routes":{"route-frontend-Host-whoami-anuary-com":{"rule":"Host:whoami.anuary.com"}},"passHostHeader":true,"priority":0}}}
INFO[2016-09-21T21:34:41+02:00] Skipping same configuration for provider docker
DEBU[2016-09-21T21:34:56+02:00] Error loading load balancer method '<nil>' for backend backend-whoami1: Invalid method, using default. Using default wrr.
DEBU[2016-09-21T21:34:56+02:00] Configuration received from provider docker: {"backends":{"backend-whoami1":{"servers":{"server-whoami1":{"url":"http://10.0.0.2:80","weight":1}},"loadBalancer":{"method":"wrr"}}},"frontends":{"frontend-Host-whoami-anuary-com":{"entryPoints":["http"],"backend":"backend-whoami1","routes":{"route-frontend-Host-whoami-anuary-com":{"rule":"Host:whoami.anuary.com"}},"passHostHeader":true,"priority":0}}}
INFO[2016-09-21T21:34:56+02:00] Skipping same configuration for provider docker
WARN[2016-09-21T21:35:06+02:00] Error forwarding to http://10.0.0.2:80, err: dial tcp 10.0.0.2:80: i/o timeout
DEBU[2016-09-21T21:35:11+02:00] Error loading load balancer method '<nil>' for backend backend-whoami1: Invalid method, using default. Using default wrr.
DEBU[2016-09-21T21:35:11+02:00] Configuration received from provider docker: {"backends":{"backend-whoami1":{"servers":{"server-whoami1":{"url":"http://10.0.0.2:80","weight":1}},"loadBalancer":{"method":"wrr"}}},"frontends":{"frontend-Host-whoami-anuary-com":{"entryPoints":["http"],"backend":"backend-whoami1","routes":{"route-frontend-Host-whoami-anuary-com":{"rule":"Host:whoami.anuary.com"}},"passHostHeader":true,"priority":0}}}
INFO[2016-09-21T21:35:11+02:00] Skipping same configuration for provider docker

[emilevauge]

As said here this has nothing to do with traefik, you have to run traefik on the same network.

[gajus]

@emilevauge Thats what I am asking – is there is a way to configure traefik binary on which network to run?

[gajus]

Looking at the ./dist/traefik --help output, it doesn't look like there is an option for this. However, this would be a useful feature, if this is technically possible.

[emilevauge]

You have to run traefik in Docker, and use the docker command to attach traefik to your network. This is how it is supposed to work.