Create a Scaling Group - General

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.


This section is where you specify the basic configuration of your new auto scaling group.

  1. Type the name of your new auto scaling group in the Name textbox.
  2. Select a launch configuration from the Launch Configuration drop-down list box. A launch configuration defines the properties of the instances that are launched as part of your auto scaling group.
  3. From the VPC network drop-down list box, select No VPC or specify which of your VPCs you want to launch instances in this scaling group.
    If a VPC network is selected, the VPC subnet(s) drop-down list box displays.
  4. Select a CIDR range from the VPC subnet(s) drop-down list box.


Use the capacity values to manually scale your scaling groups.

  1. Specify the minimum number of instances you want running in your autoscaling group using the Min control.
  2. Specify the desired number of instances you want running using the Desired control.
  3. Specify the maximum number of instances you want running using the Max control.
  4. A termination policy defines how instances that are no longer needed in the scaling group are terminated. A default termination policy is already pre-selected but you can change the policy to a different one, or add more termination policies from the Termination policies text box. Termination policies are executed in the order they are listed.
    For information on termination policies, see Configure Instance Termination Policy for Your Auto Scaling Group.
  5. To apply tags, proceed to the next section. Otherwise, click Next to proceed to the Membership tab.


A tag is a key/value pair containing data that you can attach to resources in your cloud. This section of the Create Scaling Group wizard allows you to define tags for your scaling group and for instances that run in your scaling group.

  1. If you want to apply the new tag to instances running in the scaling group, select the Propagate check box.
  2. Type the key name for your tag into the name... text box.
    Note: Tags cannot start with "euca:" or "aws:".
  3. Type the value for your tag into the value... text box.
  4. Click the Add Tag button.
  5. If you wish to add additional tags, repeat the preceding steps.
  6. To delete one or more tags, move your mouse over the tag you wish to delete, and click the X button.