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Docs: Troubleshooting help for Docker Swarm labels

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Greg Berns 2019-05-03 01:28:05 -07:00 committed by Traefiker Bot
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docs/configuration/backends/docker.md
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@ -257,6 +257,20 @@ services:
traefik.docker.network: traefik
```
Required labels:
- `traefik.frontend.rule`
- `traefik.port` - Without this the debug logs will show this service is deliberately filtered out.
- `traefik.docker.network` - Without this a 504 may occur.
#### Troubleshooting
If service doesn't show up in the dashboard, check the debug logs to see if the port is missing:
`Filtering container without port, <SERVICE_NAME>: port label is missing, ...')`
If `504 Gateway Timeout` occurs and there are networks used, ensure that `traefik.docker.network` is defined.
The complete name is required, meaning if the network is internal the name needs to be `<project_name>_<network_name>`.
### Using Docker Compose
If you are intending to use only Docker Compose commands (e.g. `docker-compose up --scale whoami=2 -d`), labels should be under your service, otherwise they will be ignored.