Create a Scaling Group - Membership

This page allows you to create a scaling group. An Auto Scaling group defines the parameters for the Eucalyptus instances that are used for scaling, as well as the minimum, maximum, and the desired number of instances to use for Auto Scaling your application. In order to create a scaling group, you must first have a launch configuration created. For more information on Auto Scaling, see Using Auto Scaling in the Eucalyptus User Guide.


In this tab, you can specify availability zones and health checks for the instances that run in your auto scaling group.

  1. If present, select one or more availability zones for your new scaling group from the Availability zones drop-down list box.
    Note: Availability zones are not applicable if a VPC network is selected.
    You can remove a selected availability zone by clicking on the x next to the availability zone's name in the Availability Zone(s) field.
  2. Select one or more load balancers for you new scaling group from the Load balancer(s) drop-down list box.
    You can add another load balancer to the new auto scaling group by clicking the + button next to the drop-down list box.
    The auto scaling health check uses EC2 instance status checks to determine the health state of each instance in your auto scaling group. If your auto scaling group is using a load balancer, auto scaling will use both EC2 instance status checks and load balancing instance health checks.
  3. Type the amount of grace period, in seconds, into the Health check grace period (secs) text box or use the scroll bars to incrementally adjust the values. This is the amount of time after a new instance is launched in your auto scaling group before health checks start for the instance.


This section allows you to specify whether to collect CloudWatch metrics for this scaling group.

Click the Enable monitoring check box to turn on the CloudWatch features for this scaling group and the instances it manages.

Saving the Scaling Group

  1. Once you are satisfied with the properties you defined for your scaling group, click the Create Scaling Group button to create your scaling group.
    The Next Step dialog box opens prompting you to add scaling policies for this scaling group.
  2. You may choose not to show this message again by checking the Do not show me this again checkbox.
  3. Click add scaling policies to continue. Refer to the help page of the Create scaling policy window to complete the required information.