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SLB VServer Group Multi-Zone Deployment

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

Description​

Ensures that SLB virtual server groups contain instances from multiple availability zones.

Reason for Violation​

Deploying backend instances in multiple zones ensures high availability for the service.

Recommendation​

Add at least 2 servers entries to the alicloud_slb_server_group resource for multi-zone deployment.

Resource Types​

  • ROS: ALIYUN::SLB::VServerGroup
  • Terraform: alicloud_slb_server_group