Traefik - header matching

README.md

Traefik routing

Proxy to services based on Accept header.

Run

docker-compose up -d

Test

Headers

1. Get latest version: curl -H "Accept: application/json" http://localhost/
2. Get version 1: curl -H "Accept: application/json+v1" http://localhost/
3. Get specificaly version 2 (aka latest): curl -H "Accept: application/json+v2" http://localhost/

URL prefix and path matching

1. Get projects: curl http://localhost/api/projects
2. Get all events: curl http://localhost/api/events
3. Get all events related to a project: curl http://localhost/api/projects/1/events

docker-compose.yml

version: '2'
services:
  v1:
    image: nginx:alpine
    ports:
      - 80
    links:
      - reverse-proxy
    labels:
      - "traefik.enable=true"
      - "traefik.frontend.rule=PathPrefix:/;Headers: Accept, application/json+v1"
    volumes:
      - ./v1.json:/usr/share/nginx/html/index.html:ro
  v2:
    image: nginx:alpine
    ports:
      - 80
    links:
      - reverse-proxy
    labels:
      - "traefik.enable=true"
      - "traefik.frontend.rule=PathPrefix:/;HeadersRegexp: Accept, application/(json|json+v2)"
    volumes:
      - ./v2.json:/usr/share/nginx/html/index.html:ro
  prefixed:
    image: nginx:alpine
    ports:
      - 80
    links:
      - reverse-proxy
    labels:
      - "traefik.enable=true"
      - "traefik.frontend.priority=10"
      - "traefik.frontend.rule=PathPrefixStrip:/api/projects"
    volumes:
      - ./v1.json:/usr/share/nginx/html/index.html:ro
  events:
    image: nginx:alpine
    ports:
      - 80
    links:
      - reverse-proxy
    labels:
      - "traefik.enable=true"
      - "traefik.frontend.priority=20"
      - "traefik.frontend.rule=Path:/api{path:.*}/events"
    volumes:
      - ./v2.json:/usr/share/nginx/html/api/events:ro
      - ./v3.json:/usr/share/nginx/html/api/projects/1/events:ro
  reverse-proxy:
    image: traefik
    command: --web --web.address=:81 \
      --docker --docker.watch --docker.domain=localhost \
      --debug --logLevel=DEBUG \
      --defaultentrypoints=http \
      --entrypoints='Name:http Address::80' \
      --docker.exposedbydefault=false
    ports:
        - 80:80
        - 81:81
    volumes:
        - /var/run/docker.sock:/var/run/docker.sock
        - /dev/null:/traefik.toml

v1.json

{"version": 1}

v2.json

{"version": 2}

v3.json

{"version": 3}

Thanks for your example.

Have you used Traefik header matching with consul tags?

Here an example using consul

https://gist.github.com/juanpabloaj/f7dc576924f8e6c49222bcc098edd619