How to redirect http to https with Traefik 2.0 and Docker Compose labels?

Question

Please note that it is a Traefik V2 question. I had a solution on V1 but V2 is a total rewamp.

This above is supposed to redirect http://whoami.mysite.com to https://whoami.mysite.com.

• The https is working nicely.
• The http don't redirect to https and raise an error 404.

There is no other file. All is in this Docker-compose.yml for the moment since it is a test to prepare further deployement.

version: "3.3"

services:

  traefik:
    image: "traefik:v2.0"
    container_name: "traefik"
    command:
      - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.web-secure.address=:443"
      - "--certificatesresolvers.myhttpchallenge.acme.httpchallenge=true"
      - "--certificatesresolvers.myhttpchallenge.acme.httpchallenge.entrypoint=web-secure"
      #- "--certificatesresolvers.myhttpchallenge.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory"
      - "[email protected]"
      - "--certificatesresolvers.myhttpchallenge.acme.storage=/letsencrypt/acme.json"
    labels:
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"
    volumes:
      - "./letsencrypt:/letsencrypt"
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

  whoami:
    image: "containous/whoami"
    container_name: "whoami"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(`whoami.mysite.com`)"
      - "traefik.http.routers.whoami.entrypoints=web"
      - "traefik.http.routers.whoami.middlewares=redirect-to-https@docker"
      - "traefik.http.routers.whoami-secured.rule=Host(`whoami.mysite.com`)"
      - "traefik.http.routers.whoami-secured.entrypoints=web-secure"
      - "traefik.http.routers.whoami-secured.tls=true"
      - "traefik.http.routers.whoami-secured.tls.certresolver=myhttpchallenge"

Answer 1

I suggest to take a look here at the docs Entrypoint redirect 80 > 443

This worked for me and is the best solution if you want all traffic redirected from port 80 to 443.

--entrypoints.web.address=:80
--entrypoints.web.http.redirections.entryPoint.to=websecure
--entrypoints.web.http.redirections.entryPoint.scheme=https
--entrypoints.web.http.redirections.entrypoint.permanent=true
--entrypoints.websecure.address=:443

NOTE:

there are so many examples around. Just take a look at websecure.

Sometimes it is written web-secure.

Hope that helps ;o)

Answer 2

There is now a working solution in a tutorial from Gérald Croës at:

https://blog.containo.us/traefik-2-0-docker-101-fc2893944b9d

services:  
  traefik:  
    image: "traefik:v2.0.0"  
    # ...  
    labels:  
      # ...        
      # middleware redirect  
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"  
      # global redirect to https  
      - "traefik.http.routers.redirs.rule=hostregexp(`{host:.+}`)"  
      - "traefik.http.routers.redirs.entrypoints=web"  
      - "traefik.http.routers.redirs.middlewares=redirect-to-https"  

Answer 3

You don't need to configure the Traefik service itself. On Traefik you only need to have entrypoints to :443 (web-secure) and :80 (web)

Because Traefik only acts as entryPoint and will not do the redirect, the middleware on the target service will do that.

Now configure your target service as the following:

version: '2'
services:
  mywebserver:
    image: 'httpd:alpine'
    container_name: mywebserver
    labels:
      - traefik.enable=true
      - traefik.http.middlewares.mywebserver-redirect-web-secure.redirectscheme.scheme=https
      - traefik.http.routers.mywebserver-web.middlewares=mywebserver-redirect-web-secure
      - traefik.http.routers.mywebserver-web.rule=Host(`sub.domain.com`)
      - traefik.http.routers.mywebserver-web.entrypoints=web
      - traefik.http.routers.mywebserver-web-secure.rule=Host(`sub.domain.com`)
      - traefik.http.routers.mywebserver-web-secure.tls.certresolver=mytlschallenge
      - traefik.http.routers.mywebserver-web-secure.tls=true
      - traefik.http.routers.mywebserver-web-secure.entrypoints=web-secure
      # if you have multiple ports exposed on the service, specify port in the web-secure service
      - traefik.http.services.mywebserver-web-secure.loadbalancer.server.port=9000

So basically the flow goes like this:

Request: http://sub.domain.com:80 --> traefik (service) --> mywebserver-web (router, http rule) --> mywebserver-redirect-web-secure (middleware, redirect to https) --> mywebserver-web-secure (router, https rule) --> mywebserver (service)

Answer 4

You just need to add the following to the traefik config, not application;

- "--entrypoints.websecure.address=:443"
- "--entrypoints.web.address=:80"
- "--entrypoints.web.http.redirections.entryPoint.to=websecure"
- "--entrypoints.web.http.redirections.entryPoint.scheme=https"
- "--entrypoints.web.http.redirections.entrypoint.permanent=true"

Here is the full yaml config of the traefik

version: "3.3"

services:

  traefik:
    image: "traefik:v2.5"
    container_name: "traefik"
    command:
      # - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.websecure.address=:443"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.web.http.redirections.entryPoint.to=websecure"
      - "--entrypoints.web.http.redirections.entryPoint.scheme=https"
      - "--entrypoints.web.http.redirections.entrypoint.permanent=true"
      - "--certificatesresolvers.myresolver.acme.tlschallenge=true"
      #- "--certificatesresolvers.myresolver.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory"
      - "[email protected]"
      - "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"

    ports:
      - "443:443"
      - "80:80"
      - "8080:8080"
    volumes:
      - "./letsencrypt:/letsencrypt"
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

Example application

  whoami:
    image: "traefik/whoami"
    container_name: "simple-service"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(`subdomain.domain.com`)"
      - "traefik.http.routers.whoami.entrypoints=websecure"
      - "traefik.http.routers.whoami.tls.certresolver=myresolver"