Having issues with docker provider and redirect middleware

dalan · August 31, 2020, 12:31pm

Have a router defined in my traefik-dynamic.toml that makes use of http-to-https@docker but I'm getting this error message in the logs:

Is there a way to validate that my traefik yaml config is valid?
Have I missed something moving to v2.2?

traefik       | time="2020-08-31T12:16:55Z" level=error msg="middleware \"http-to-https@docker\" does not exist" entryPointName=http routerName=synology-http@file

Here is my yaml file:

version: "3"
volumes:
  traefik:
    driver: local
    driver_opts:
      type: nfs
      o: "addr=192.168.2.198,soft,rw,nfsvers=3,async"
      device: ":/volume1/docker/traefik"
services:
  traefik:
    container_name: traefik
    image: traefik:v2.2
    ports:
      - "80:80"
      - "443:443"
      - "9090:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /nfs/docker/traefik/traefik-dynamic.toml:/traefik-dynamic.toml
      - /nfs/docker/traefik/acme.json:/acme.json
    command:
      - "--log.level=DEBUG"

      - "--entrypoints.http.address=:80"
      - "--entrypoints.https.address=:443"

      - "--providers.docker=true"
      - "--providers.docker.exposedByDefault=false"
      - "--providers.docker.endpoint=unix:///var/run/docker.sock"
      - "--providers.docker.watch=true"

      - "--providers.file=true"
      - "--providers.file.filename=/traefik-dynamic.toml"
      - "--providers.file.watch=true"

      - "--api=true"
      - "--api.insecure=true"
      - "--api.dashboard=true"
      - "--api.debug=true"

      - "--certificatesresolvers.cloudflare.acme.dnschallenge=true"
      - "--certificatesresolvers.cloudflare.acme.email=email@gmail.com"
      - "--certificatesresolvers.cloudflare.acme.storage=acme.json"
      - "--certificatesresolvers.cloudflare.acme.dnschallenge.resolvers=1.1.1.1:53,8.8.8.8:53"
      - "--certificatesresolvers.cloudflare.acme.dnschallenge.provider=cloudflare"

      - "--serversTransport.insecureSkipVerify=true"
    restart: always
    env_file: ./traefik.env
    labels:
      - "traefik.enable=true"

      - "traefik.http.middlewares.compress.compress=true"

      - "traefik.http.middlewares.forward-auth.forwardauth.address=http://forward-auth/auth"
      - "traefik.http.middlewares.forward-auth.forwardauth.trustForwardHeader=true"
      
      - "traefik.http.middlewares.forward-auth.forwardauth.authResponeHeader=X-Forwarded-User"

      - "traefik.http.middlewares.http-to-https.redirectscheme.scheme=https"
      - "traefik.http.middlewares.http-to-https.redirectscheme.permanent=true"
  hello:
    container_name: hello
    image: containous/whoami
    labels:
      - "traefik.enable=true"

      - "traefik.http.routers.hello-http.rule=Host(`hello.example.com`)"
      - "traefik.http.routers.hello-http.service=hello-http"
      - "traefik.http.routers.hello-http.entryPoints=http"
      - "traefik.http.routers.hello-http.tls=false"
      - "traefik.http.routers.hello-http.middlewares=compress,http-to-https"

      - "traefik.http.routers.hello-https.rule=Host(`hello.example.com`)"
      - "traefik.http.routers.hello-https.service=hello-http"
      - "traefik.http.routers.hello-https.entryPoints=https"
      - "traefik.http.routers.hello-https.tls.certresolver=cloudflare"      
      - "traefik.http.routers.hello-https.middlewares=compress"

      - "traefik.http.services.hello-http.loadbalancer.server.port=80"
  hello-auth:
    container_name: hello-auth
    image: containous/whoami
    labels:
      - "traefik.enable=true"

      - "traefik.http.routers.hello-auth-http.rule=Host(`hello-auth.example.com`)"
      - "traefik.http.routers.hello-auth-http.service=hello-auth"
      - "traefik.http.routers.hello-auth-http.entrypoints=http"
      - "traefik.http.routers.hello-auth-http.middlewares=forward-auth,compress,http-to-https"

      - "traefik.http.routers.hello-auth.rule=Host(`hello-auth.example.com`)"
      - "traefik.http.routers.hello-auth.service=hello-auth"
      - "traefik.http.routers.hello-auth.entrypoints=https"
      - "traefik.http.routers.hello-auth.tls.certresolver=cloudflare"
      - "traefik.http.routers.hello-auth.middlewares=forward-auth,compress"

      - "traefik.http.services.hello-auth.loadbalancer.server.port=80"

cakiwi · August 31, 2020, 12:42pm

I see this only on startup with a docker provider middleware. But it works once the docker provider loads the config from docker labels.

Is it just the error concerning you or does it flat out not work ?

dalan · September 1, 2020, 10:32am

It just flat out does not work. ;(

traefik | time="2020-09-01T10:29:29Z" level=error msg="middleware "http-to-https@docker" does not exist" routerName=synology-http@file entryPointName=http

And none of the middlewares defined under the traefik service in the yaml file, show up in the dashboard.

ldez · September 1, 2020, 11:02am

By using the global redirection system (and with some configuration improvements)

version: "3"

volumes:
  traefik:
    driver: local
    driver_opts:
      type: nfs
      o: "addr=192.168.2.198,soft,rw,nfsvers=3,async"
      device: ":/volume1/docker/traefik"

services:

  traefik:
    container_name: traefik
    image: traefik:v2.2
    ports:
      - 80:80
      - 443:443
      - 9090:8080
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /nfs/docker/traefik/traefik-dynamic.toml:/traefik-dynamic.toml
      - /nfs/docker/traefik/acme.json:/acme.json
    command:
      - --log.level=INFO

      - --entrypoints.web.address=:80
      - --entrypoints.web.http.redirections.entrypoint.to=websecure
      - --entrypoints.web.http.redirections.entrypoint.scheme=https

      - --entrypoints.websecure.address=:443
      - --entrypoints.websecure.http.tls.certresolver=cloudflare

      - --providers.docker.exposedByDefault=false
      - --providers.docker.endpoint=unix:///var/run/docker.sock

      - --providers.file.filename=/traefik-dynamic.toml
      - --providers.file.watch=true

      - --api=true
      - --api.insecure=true

      - --certificatesresolvers.cloudflare.acme.dnschallenge=true
      - --certificatesresolvers.cloudflare.acme.email=email@gmail.com
      - --certificatesresolvers.cloudflare.acme.storage=acme.json
      - --certificatesresolvers.cloudflare.acme.dnschallenge.resolvers=1.1.1.1:53,8.8.8.8:53
      - --certificatesresolvers.cloudflare.acme.dnschallenge.provider=cloudflare

      - --serversTransport.insecureSkipVerify=true
    restart: always
    env_file: ./traefik.env
    labels:
      traefik.enable: 'true'

      traefik.http.middlewares.compress.compress: 'true'

      traefik.http.middlewares.forward-auth.forwardauth.address: http://forward-auth/auth
      traefik.http.middlewares.forward-auth.forwardauth.trustForwardHeader: 'true'
      
      traefik.http.middlewares.forward-auth.forwardauth.authResponeHeader: X-Forwarded-User

  hello:
    container_name: hello
    image: containous/whoami
    labels:
      traefik.enable: 'true'

      traefik.http.routers.hello.rule: Host(`hello.example.com`)
      traefik.http.routers.hello.service: hello
      traefik.http.routers.hello.entryPoints: websecure,web
      traefik.http.routers.hello.middlewares: compress

      traefik.http.services.hello.loadbalancer.server.port: 80

  hello-auth:
    container_name: hello-auth
    image: containous/whoami
    labels:
      traefik.enable: 'true'

      traefik.http.routers.hello-auth.rule: Host(`hello-auth.example.com`)
      traefik.http.routers.hello-auth.service: hello-auth
      traefik.http.routers.hello-auth.entrypoints: websecure,web
      traefik.http.routers.hello-auth.middlewares: forward-auth,compress

      traefik.http.services.hello-auth.loadbalancer.server.port: 80

dalan · September 2, 2020, 12:34pm

Just one nit @ldez, I believe that I'm having an issue because no hostname is specified for cert generation if I'm using dnschallenge for traefik's websecure entrypoint. Or am I missing something?

Also a million thank yous, this config is much cleaner than my katamari damacy config I've been lugging around from pre-2.0.

traefik                 | time="2020-09-02T12:31:53Z" level=error msg="Unable to obtain ACME certificate for domains \"traefik-docker\": unable to generate a certificate for the domains [traefik-docker]: acme: error: 400 :: POST :: https://acme-v02.api.letsencrypt.org/acme/new-order :: urn:ietf:params:acme:error:rejectedIdentifier :: Error creating new order :: Cannot issue for \"traefik-docker\": Domain name needs at least one dot, url: " providerName=cloudflare.acme routerName=https-traefik-docker@docker rule="Host(`traefik-docker`)"

ldez · September 2, 2020, 11:25pm

The behavior is expected and related to:

  traefik:
    image: traefik:v2.2
    # ...
    labels:
      traefik.enable: 'true'
      # ...

When you enable Traefik on a container, Traefik creates automatically one router and one service.
It's the same behavior when you set --providers.docker.exposedByDefault=true (the default behavior).

You have several solutions, one is to use the API in secure mode (instead of the insecure mode)

version: "3"

volumes:
  traefik:
    driver: local
    driver_opts:
      type: nfs
      o: "addr=192.168.2.198,soft,rw,nfsvers=3,async"
      device: ":/volume1/docker/traefik"

services:

  traefik:
    container_name: traefik
    image: traefik:v2.2
    ports:
      - 80:80
      - 443:443
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /nfs/docker/traefik/traefik-dynamic.toml:/traefik-dynamic.toml
      - /nfs/docker/traefik/acme.json:/acme.json
    command:
      - --log.level=INFO

      - --entrypoints.web.address=:80
      - --entrypoints.web.http.redirections.entrypoint.to=websecure
      - --entrypoints.web.http.redirections.entrypoint.scheme=https

      - --entrypoints.websecure.address=:443
      - --entrypoints.websecure.http.tls.certresolver=cloudflare

      - --providers.docker.exposedByDefault=false
      - --providers.docker.endpoint=unix:///var/run/docker.sock

      - --providers.file.filename=/traefik-dynamic.toml
      - --providers.file.watch=true

      - --api=true

      - --certificatesresolvers.cloudflare.acme.dnschallenge=true
      - --certificatesresolvers.cloudflare.acme.email=email@gmail.com
      - --certificatesresolvers.cloudflare.acme.storage=acme.json
      - --certificatesresolvers.cloudflare.acme.dnschallenge.resolvers=1.1.1.1:53,8.8.8.8:53
      - --certificatesresolvers.cloudflare.acme.dnschallenge.provider=cloudflare

      - --serversTransport.insecureSkipVerify=true
    restart: always
    env_file: ./traefik.env
    labels:
      traefik.enable: 'true'

      # Dashboard
      traefik.http.routers.traefik.rule: Host(`traefik.example.com`)
      traefik.http.routers.traefik.entrypoints: web, websecure
      traefik.http.routers.traefik.service: api@internal
      traefik.http.routers.traefik.middlewares: auth

      # Middlewares
      traefik.http.middlewares.auth.basicauth.users: user:$$apr1$$q8eZFHjF$$Fvmkk//V6Btlaf2i/ju5n/ # user/password

      traefik.http.middlewares.compress.compress: 'true'

      traefik.http.middlewares.forward-auth.forwardauth.address: http://forward-auth/auth
      traefik.http.middlewares.forward-auth.forwardauth.trustForwardHeader: 'true'
      
      traefik.http.middlewares.forward-auth.forwardauth.authResponeHeader: X-Forwarded-User

  hello:
    container_name: hello
    image: containous/whoami
    labels:
      traefik.enable: 'true'

      traefik.http.routers.hello.rule: Host(`hello.example.com`)
      traefik.http.routers.hello.service: hello
      traefik.http.routers.hello.entryPoints: websecure,web
      traefik.http.routers.hello.middlewares: compress

      traefik.http.services.hello.loadbalancer.server.port: 80

  hello-auth:
    container_name: hello-auth
    image: containous/whoami
    labels:
      traefik.enable: 'true'

      traefik.http.routers.hello-auth.rule: Host(`hello-auth.example.com`)
      traefik.http.routers.hello-auth.service: hello-auth
      traefik.http.routers.hello-auth.entrypoints: websecure,web
      traefik.http.routers.hello-auth.middlewares: forward-auth,compress

      traefik.http.services.hello-auth.loadbalancer.server.port: 80

Another solution can be to use the file provider to define the "shared middlewares" instead of using the labels on the Traefik container.

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Having issues with docker provider and redirect middleware

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