Comments: Traefik on Docker for Web Developers

[jtreminio]

https://jtreminio.com/blog/traefik-on-docker-for-web-developers/

[Lemmork]

Hi, thanks for this great post, which works fine for my http connection.
I'm wondering if I can have http and https on .localhost.
I tried some label settings like this to access my container on port 80 and 443:

      - traefik.docker.network=traefik_webgateway
      - traefik.app.frontend.rule=Host:project.localhost
      - traefik.app.backend=web-http
      - traefik.port=80
      - traefik.frontend.entryPoints=http
      - traefik.https.frontend.rule=Host:project.localhost
      - traefik.https.port=443
      - traefik.https.frontend.entryPoints=https
      - traefik.https.backend=web-https

But this does not work. If I try to access https://project.localhost I get an ERR_CONNECTION_RESET in Chrome.
I'm not sure, if chrome does a loopback on https at all, or if I have a misconfiguration in traefik.

[jtreminio]

@Lemmork Let's Encrypt will not work on a private (local) hostname unless DNS is pointed to your computer's IP.

In other words, too much hassle. I recommend creating a real subdomain on your project's public website, like dev.mysite.com, and creating an SSL cert for that subdomain, then using that cert for local development.

[Lemmork]

Finaly I solved it by terminating ssl on treafik with a self-signed certificate.

version:  '3.5'

services:
  proxy:
    image: traefik
    command: --api --docker --docker.domain=docker.localhost --defaultentrypoints=http,https --entryPoints='Name:http Address::80 Redirect.EntryPoint:https' --entryPoints='Name:https Address::443 TLS:/ssl/localhost.crt,/ssl/localhost.key.pem' --logLevel=DEBUG
    networks:
      - webgateway
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /dev/null:/traefik.toml
      - ./ssl:/ssl
networks:
  webgateway:
    driver: bridge

[kidpixo]

Great article, thanks! The TCP issue seems to be closed and resolved now in containous/traefik #4587.
I must definitely start using traefik, you convinced me.

[kidpixo]

Just another question : how do you include the comments here on the jekyll generated website???

[speto]

If you would like to get rid of usual port dance with databases you could try this simple utility speto/docker-db-tunnel

[tenshi13]

Hi there, thank you first for this great post, am playing with traefik and was doing tutorials, your post was real helpfull. Would like to just notify, it seems that some of the commands might be outdated with latest traefik docker image, to spin a container with working dashboard up now needs:

docker container run -d --name traefik_proxy \
    --network traefik_webgateway \
    -p 80:80 \
    -p 8080:8080 \
    --restart always \
    --volume /var/run/docker.sock:/var/run/docker.sock \
    --volume /dev/null:/dyn-traefik.toml \
    traefik --api.dashboard=true --api.insecure=true --providers.docker

note:

• traefik.toml => dyn-traefik.toml
• --api => --api.dashboard=true --api.insecure=true
• --docker => --providers.docker

if not, i believe the version for when you wrote the tutorial was v1.7, you can hard version it to that also maybe :D

please keep on writing awesome posts!

[tenshi13]

@kidpixo I was curious also and I believe it would be the js magic at jtreminio.com/static/js/gh-commentify.js

[majidalikhn]

Hi, thanks for this great post, which works fine for my http connection.
I'm wondering if I can have http and https on .localhost.
I tried some label settings like this to access my container on port 80 and 443:

      - traefik.docker.network=traefik_webgateway
      - traefik.app.frontend.rule=Host:project.localhost
      - traefik.app.backend=web-http
      - traefik.port=80
      - traefik.frontend.entryPoints=http
      - traefik.https.frontend.rule=Host:project.localhost
      - traefik.https.port=443
      - traefik.https.frontend.entryPoints=https
      - traefik.https.backend=web-https

But this does not work. If I try to access https://project.localhost I get an ERR_CONNECTION_RESET in Chrome.
I'm not sure, if chrome does a loopback on https at all, or if I have a misconfiguration in traefik.

@Lemmork I have run across a similar issue, is there any chance you can help me? Could you share your .toml file?

[Lemmork]

@majidalikhn The traefik version I used two years ago is outdated now. Maybe this is why you are having trouble with it. If you want to use https on localhost you need to provide a self-signed certificate.
Maybe this works with the newer version too:
#13 (comment)