Create a scaling group

This document describes how to create a scaling group.

Procedure

1. Log in to the Auto Scaling console.

2. In the left navigation pane, click Scaling Group.

3. Select a region from the top navigation bar.

   After you select a region, only KEC instances in this region can be added to the scaling group to be created and only an SLB instance in this region can be attached to the scaling group.

   For example, if you select the CN North 1(Beijing) region, only KEC instances in this region can be added to the scaling group during scale-out. You can only attach an SLB instance in the CN North 1(Beijing) region to the scaling group.

4. Click Create.

5. Set the parameters of the scaling group.

   • Name: The name of the scaling group.
   • Min. Node Number: The minimum number of KEC instances in the scaling group.
   • Expected number of KEC instances: The initial number of KEC instances in the scaling group when the scaling group is created. After the scaling group is created, these KEC instances are automatically created.
   • Max. Node Number: The maximum number of KEC instances in the scaling group.
   • Removal Policy: The policy that decides which KEC instance are removed among multiple choices.
   • Launch Configuration: The launch configuration based on which KEC instances are created in the scaling group.
   • VPC, Associated Subnet, and Security Group (Firewall): The network attributes of the KEC instances to be created during scale-out. They specify the VPC, subnet, and security group of these KEC instances.
   • Server Load Balancing, Listener, and Server Port: The load balancing settings of the scaling group. They specify the SLB instance, listener, and server port for balancing traffic among KEC instances in the scaling group. KEC instances created during scale-out are automatically attached to the specified listener and server port on the specified SLB instance.