Load Balancer

A Load Balancer distributes inbound traffic across several backend VMs automatically and provides:

• High availability — a failed backend is removed from the pool by the health check.
• Scale-out — add VMs to the pool to grow capacity.
• SSL termination — the Load Balancer handles HTTPS/TLS; the backends only see HTTP.

Architecture

Internet → Floating IP (LB) → Listener (HTTP/HTTPS) → Pool → Members (backend VMs)
                                                       ↑
                                                  Health check

• Listener — listens on one port and protocol.
• Pool — a group of backends with the same role.
• Member — a specific backend VM inside the pool.
• Health check — periodic probe that drops failed members from rotation.

Create a Load Balancer

Create a new Load Balancer with the right plan and connection mode (Public / Private).

Configure the Load Balancer

Add a Listener, Pool, Member, health check, import an SSL certificate and enable Monitoring.