Traefik + Docker Swarm Mode

Question

Having a bizarre problem where I enable swarm mode in Traefik v2.2.0 using the following command:

command:
  - "--providers.docker.swarmMode=true"

It causes Traefik to fail completely (every url gives a page not found error).

Also, a side problem which may be related is how I managed to get the dashboard working. The only way which seemed to work is:

  - "traefik.enable=true"
  - "traefik.http.routers.api.rule=Host(`<site ip>`) && (PathPrefix(`/traefik`) || PathPrefix(`/api`))"
  - "traefik.http.routers.api.middlewares=strip-traefik"
  - "traefik.http.middlewares.strip-traefik.stripprefix.prefixes=/traefik"

Yet when I visit /traefik the URL that's shown is /traefik/dashboard.

I thought that the /traefik element is removed by stripprefix?

I'm using an Azure virtual machine which is only IP based, not sure if that's anything to do with it.

Thanks for any suggestions.

Cyril G. · Accepted Answer · 2020-08-06 15:24:09Z

2

In Swarm Mode, the labels should be defined in the deploy part of your service.

deploy:
  labels:
    - "traefik.enable=true"
    ...

answered Aug 6, 2020 at 15:24

Cyril G.

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