traefik-dsd

Dead simple discovery for Traefik via overlay network in docker.

Basic implementation to discover containers over docker sock that are running connected to overlay network.

DISCLAIMER: If you looking for stable solution it is advertised to use traefik-kop.

Prequesites

To use traefik-dsd you need to init swarm mode and create overlay network. Traefik and all containers must be in the same overlay network.

Usage

services:
  traefik-dsd:
    image: "ghcr.io/drakkein/traefik-dsd:latest"
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - "REDIS_URL=redis://valkey:6379"
      - "DOCKER_NETWORK=traefik-public"
    networks:
      - traefik-public

  whoami:
    image: traefik/whoami
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(`myapp.example.com`)" 
      - "traefik.http.services.whoami.loadbalancer.server.port=80"
    networks:
      - traefik-public

networks:
  traefik-public:
    external: true

Test on traefik machine

curl -v -H "Host: myapp.example.com" http://127.0.0.1/

Configuration

Variable	Description	Default
REDIS_URL	URL to your redis/valkey instance	-
DOCKER_NETWORK	Name of your overlay network	-
REDIS_TTL	Expiry time of created records. Discovery loop starts 5s before	60
HOST_IP	IP address that will be passed to loadbalancer config instead of container IP	-