HAProxy (High Availability Proxy) is a free, open-source, and high-performance TCP/HTTP load balancer. It ensures reliable distribution of network traffic across servers, enhancing scalability and redundancy. 🚀

📚 Key Features

  • High availability with health checks and failover
  • Load balancing algorithms: round-robin, least-connection, source IP
  • Proxying support for HTTP, TCP, and UDP
  • SSL termination and compression
  • Flexible configuration using haproxy.cfg

🧰 Installation Guide

  1. Download: HAProxy Official Website
  2. Compile:
    wget https://www.haproxy.org/download/2.8.00/src/haproxy-2.8.00.tar.gz  
    tar -xzvf haproxy-2.8.00.tar.gz  
    cd haproxy-2.8.00  
    make TARGET=linux-glibc USE_LIBCRYPTO=1  
    
  3. Deploy: Linux Installation Docs

📌 Configuration Examples

global  
    log /dev/log local0  
    chroot /usr/local/haproxy  
    stats socket /run/haproxy.sock  
    stats timeout 30s  

defaults  
    mode http  
    timeout connect 5s  
    timeout client 30s  
    timeout server 30s  

frontend http-in  
    bind *:80  
    default_backend servers  

backend servers  
    balance round-robin  
    server server1 192.168.1.10:80  
    server server2 192.168.1.11:80  

🎯 Use Cases

  • Web load balancing: Distribute traffic to multiple web servers
  • Microservices architecture: Route requests to backend services
  • API gateways: Secure and manage API endpoints

📚 Further Reading

For advanced configurations, check out our HAProxy Best Practices guide.

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