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SLB Instance Multi-Zone Deployment

ID: rule:aliyun:slb-instance-multi-zone
Severity: medium
IaC Types: ROS, Terraform

Description​

SLB instances should be deployed across multiple zones by configuring both master and slave zones for high availability.

Reason for Violation​

The SLB instance does not have a slave zone configured, which may affect availability during zone failures.

Recommendation​

Configure slave_zone_id to enable multi-zone deployment.

Resource Types​

  • ROS: ALIYUN::SLB::LoadBalancer
  • Terraform: alicloud_slb_load_balancer