Migrating minimal v1 traefik docker configuration to v2

Traefik Traefik v2
1

Hello everyone,

I am having troubles (as in I have been banging my head at the terminal for three hours troubles) migrating a simple v1 Traefik to its v2 equivalent:

# docker-compose.yml
networks:
  default:
    external: 
      name: traefik

services:
  reverse-proxy:
    command: --api --docker
    container_name: traefik
    image: traefik:1.7.12-alpine
    labels:
      - traefik.backend='traefik'
      - traefik.frontend.entryPoints=http
      - traefik.frontend.rule=Host:traefik.localhost
      - traefik.port=8080
    ports:
      - "80:80"
    volumes:
      - $PWD/traefik.toml:/traefik.toml
      - /var/run/docker.sock:/var/run/docker.sock

version: '3.4'

# traefik.toml
defaultEntryPoints = ["http"]
[entryPoints]
  [entryPoints.http]
  address = ":80"
[docker]
exposedbydefault = true
watch=true

This setup simply creates a container that makes the traefik dashboard accessible from http://traefik.localhost

What would the Traefik v2 equivalent be like ?

Thank you for your comments and reading.

2

Hello,

the equivalent with Traefik v2:

version: '3.7'

services:

  traefik:
    image: traefik:v2.1.6
    command:
      - --providers.docker
      - --entrypoints.web.address=:80
      - --api
    ports:
      - 80:80
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    labels:
      # Dashboard
      traefik.http.routers.traefik.rule: Host(`traefik.localhost`)
      traefik.http.routers.traefik.entrypoints: web
      traefik.http.routers.traefik.service: api@internal

Recommend read:

3

Thank you. I had finally made it work with this configuration (no entrypoints though):

# docker-compose.yml
networks:
  default:
    external: 
      name: traefik

services:
  reverse-proxy:
    container_name: traefik
    command: --api.insecure=true --providers.docker=true 
    image: traefik:2.1
    ports:
      - "80:80"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    labels:
      - traefik.http.routers.api.rule=Host(`traefik.localhost`)
      - traefik.http.routers.api.service=api@internal

version: '3.4'

I'll be reading you recommendations.

4

Don't use --api.insecure=true and api@internal: as you are using api@internal you don't need to use the insecure mode.