Skip to main content

SLB Default Server Group Has Multiple Servers

ID: rule:aliyun:slb-default-server-group-multi-server
Severity: medium
IaC Types: ROS, Terraform

Description​

The default server group of SLB instances should have at least two servers to avoid single point of failure.

Reason for Violation​

A single backend server creates a single point of failure and reduces availability.

Recommendation​

Add at least two backend_servers entries for high availability.

Resource Types​

  • ROS: ALIYUN::SLB::LoadBalancer
  • Terraform: alicloud_slb_backend_server