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
- Download: HAProxy Official Website
- 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
- 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.