Is there an equivalent to ReverseProxyPass for Apache in Traefik?

Question

I have setup Traefik to work in Docker Swarm mode. I have deployed Portainer into the cluster with the following command:

docker service create                            \
                                                 \
   --label "traefik.port=9000"                   \
   --label "traefik.docker.network =traefik-net" \
   --label "traefik.frontend.rule=Host:`hostname -f`;PathPrefixStrip:/portainer" \
   --label="traefik.backend=portainer" \
                                       \
   --network traefik-net               \
   --constraint "node.role == manager" \
   -p 9000:9000                        \
   --mount "type=bind,src=/var/run/docker.sock,dst=/var/run/docker.sock" \
   --name portainer \
   portainer/portainer

As can be seen I have configured Traefik, through the use of labels, to proxy the request for /portainer to the Portainer service. However the links that are served by Protainer are from / as it does not know it is being proxied, so the application does not work as Traefik does not know how to route each link.

I am trying to avoid having to change the deployments of services to work with Traefik as I want it to be transparent. To that end is it possible to get Traefik to rewrite the links from the service like ReverseProxyPass for Apache does?

I know that Traefik now sets the X-Forwarded-Prefix but I am not sure how to get things like Portainer to use it out of the box or indeed other services that are installed from the Docker Store for example.

score 4 · Accepted Answer · answered May 29 '17 at 18:30

4

My mistake, this is working. I was omitting the trailing / from the request. When I add this, it all works.

So now I call:

http://dummy.localhost/portainer/

answered May 29 '17 at 18:30

Russell Seymour

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Fine for you that it works now :-), but what did you exactly do? Did you modify your docker command? Did you modify the request? And if so: In which way? – eventhorizon Apr 04 '18 at 08:31
1

@eventhorizon He modified his PathPrefixStrip: value to have a / at the end, as he said in his answer. The original does not have the / – Joe Phillips Jul 22 '18 at 03:24
It's still annoying that the trailing / is required when hitting the page though – Joe Phillips Jul 22 '18 at 03:31
Anyone know how to redirect `/portainer` to `/portainer/` so the page always works properly? – Joe Phillips Jul 22 '18 at 22:33
@JoePhillips https://stackoverflow.com/a/61976953/667767 This is the way. – maxisam May 23 '20 at 18:44

Is there an equivalent to ReverseProxyPass for Apache in Traefik?

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