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Traefik

Traefik is a modern HTTP reverse proxy and load balancer designed to make deploying microservices easy. It automatically discovers and configures routes as you deploy your services, eliminating the need for manual configuration updates.

Key Features

Automatic Service Discovery

Automatically detects services in Docker, Kubernetes, Consul, etcd, and other orchestrators.

Dynamic Configuration

Hot-reloadable configuration without restart, supporting multiple providers simultaneously.

Built-in Dashboard

Real-time monitoring dashboard showing routes, services, and metrics.

Let's Encrypt Integration

Automatic HTTPS with Let's Encrypt certificate management.

Use Cases

  • Microservices: Ideal for containerized microservices architectures
  • Kubernetes: Ingress controller with automatic route discovery
  • Docker: Reverse proxy for Docker containers
  • API Gateway: Centralized entry point for APIs
  • Load Balancing: Distribute traffic across multiple backend services

Configuration Example

Traefik automatically configures routes from Docker labels:

labels:
  - "traefik.enable=true"
  - "traefik.http.routers.myapp.rule=Host(`myapp.example.com`)"
  - "traefik.http.routers.myapp.entrypoints=websecure"
  - "traefik.http.routers.myapp.tls.certresolver=letsencrypt"

Advantages

  • Zero-configuration service discovery
  • Cloud-native and container-friendly
  • Built-in metrics and observability
  • Automatic HTTPS with Let's Encrypt
  • Active development and strong community

Official Resources