Deploy Traefik as a Dynamic Cloud‑Native Reverse Proxy with Docker

What is Traefik

Traefik is a modern HTTP reverse proxy and load balancer designed for micro‑service deployments. It receives external requests and routes them to the appropriate backend services automatically.

Key Advantages

Traditional reverse proxies require manual route configuration, which is error‑prone in dynamic environments. Traefik watches service registries or orchestrator APIs and generates routes in real time, removing the need for manual updates.

Core components:

Client requests

Entry points

Routers (matching rules)

Middlewares (modify requests)

Services (backend applications)

Installation

Create a docker-compose.yml file with the following content:

services:
  traefik:
    image: traefik:v3.6
    command:
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--entrypoints.web.address=:80"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

Start Traefik:

docker-compose up -d

Deploy the First Service

Deploy a simple whoami service to test routing. Create a whoami.yml file:

services:
  whoami:
    image: traefik/whoami
    labels:
      - "traefik.http.routers.whoami.rule=Host(`whoami.localhost`)"

Launch the service:

docker-compose -f whoami.yml up -d

Testing the Setup

Option 1: curl http://whoami.localhost Option 2: Open a browser and navigate to http://whoami.localhost. Expected response includes hostname, IP addresses and forwarded headers, e.g.:

Hostname: 068c0a29a8b7
IP: 127.0.0.1
IP: ::1
IP: 192.168.147.3
RemoteAddr: 192.168.147.2:56006
GET / HTTP/1.1
Host: whoami.localhost
User-Agent: curl/8.7.1
Accept: */*
Accept-Encoding: gzip
X-Forwarded-For: 192.168.147.1
X-Forwarded-Host: whoami.localhost
X-Forwarded-Port: 80
X-Forwarded-Proto: http
X-Forwarded-Server: 9232cdd4fd6c
X-Real-Ip: 192.168.147.1

Highlighted Features

Automatic service discovery – new containers are detected without restarting Traefik.

Dynamic configuration – routes are updated in real time.

Docker integration – native support via Docker labels.

Dashboard – visual interface for managing routes.