A scaling group contains a collection of CVM instances that follow the same policies and have a shared purpose.
Creating a Scaling Group
Log in to Auto Scaling Console and click Scaling group in the left sidebar.
Select a region and click Create on the top of the scaling group list.
In Create scaling group pop-up, complete the basic configurations. Fields marked with are required, as shown below:
A scaling group maintains the number of CVM instances to meet the desired capacity between the minimum and maximum capacity values.
The initial capacity defines the default number of CVM instances in the scaling group.
If a scaling group has a number of CVM instances fewer than the minimum scaling capacity value, it will automatically add instances to meet the minimum condition.
If a scaling group has a number of CVM instances greater than the maximum scaling capacity value, it will automatically terminate instances until the number of instances is equal to the maximum value allowed.
Select an existing launch configuration or create one.
Select the supported networks and subnet.
(Optional) Associate with an existing CLB instance or create one.
After the configuration is completed, you will see this entry on the scaling group list, as shown below: