In this article, I’ll walk you through setting up a highly available load balancing solution using HAProxy and Keepalived on bare metal infrastructure.
This architecture delivers 99.99% uptime—even if one of the front-end servers fails.
- Active-passive pair configuration using VRRP
- Integration with Consul for health checks
- Automatic failover in 2–3 seconds
- Monitoring via Prometheus + Grafana
We’ve successfully deployed this approach in production for clients with stringent availability requirements.
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