This article demonstrates how to deploy and load balance a web application across multiple Amazon ECS Anywhere external instances using Traefik Proxy.

• Amazon ECS Anywhere enables container management on customer-managed infrastructure like on-premises servers
• Traefik is an open-source cloud-native load balancer with automatic service discovery for multiple orchestrators
• Solution deploys Traefik LoadBalancer service on one external instance and Whoami web app on two others
• Traefik uses round-robin algorithm to distribute HTTP requests across four whoami application instances
• Supports both host-based routing (whoami.domain.com) and path-based routing (/whoami) rules
• Traefik automatically discovers and updates routing rules via Amazon ECS provider in real-time
• Includes step-by-step walkthrough with task definitions, AWS CLI commands, and validation examples

This guide provides a practical approach to implementing load balancing for distributed applications running on Amazon ECS Anywhere external instances using Traefik's dynamic discovery capabilities.