Interface CfnNodegroup.IScalingConfigProperty
An object representing the scaling configuration details for the Amazon EC2 Auto Scaling group that is associated with your node group.
Namespace: Amazon.CDK.AWS.EKS
Assembly: Amazon.CDK.Lib.dll
Syntax (csharp)
public interface CfnNodegroup.IScalingConfigPropertySyntax (vb)
Public Interface CfnNodegroup.IScalingConfigPropertyRemarks
When creating a node group, you must specify all or none of the properties. When updating a node group, you can specify any or none of the properties.
ExampleMetadata: fixture=_generated
Examples
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
using Amazon.CDK.AWS.EKS;
var scalingConfigProperty = new ScalingConfigProperty {
DesiredSize = 123,
MaxSize = 123,
MinSize = 123
};Synopsis
Properties
| DesiredSize | The current number of nodes that the managed node group should maintain. |
| MaxSize | The maximum number of nodes that the managed node group can scale out to. |
| MinSize | The minimum number of nodes that the managed node group can scale in to. |
Properties
DesiredSize
The current number of nodes that the managed node group should maintain.
double? DesiredSize { get; }Property Value
Remarks
If you use the Kubernetes <a href="https://docs.aws.amazon.com/https://github.com/kubernetes/autoscaler#kubernetes-autoscaler">Cluster Autoscaler</a> , you shouldn't change the <code>desiredSize</code> value directly, as this can cause the Cluster Autoscaler to suddenly scale up or scale down.
Whenever this parameter changes, the number of worker nodes in the node group is updated to the specified size. If this parameter is given a value that is smaller than the current number of running worker nodes, the necessary number of worker nodes are terminated to match the given value. When using CloudFormation, no action occurs if you remove this parameter from your CFN template.
This parameter can be different from minSize in some cases, such as when starting with extra hosts for testing. This parameter can also be different when you want to start with an estimated number of needed hosts, but let the Cluster Autoscaler reduce the number if there are too many. When the Cluster Autoscaler is used, the desiredSize parameter is altered by the Cluster Autoscaler (but can be out-of-date for short periods of time). the Cluster Autoscaler doesn't scale a managed node group lower than minSize or higher than maxSize .
MaxSize
The maximum number of nodes that the managed node group can scale out to.
double? MaxSize { get; }Property Value
Remarks
For information about the maximum number that you can specify, see Amazon EKS service quotas in the Amazon EKS User Guide .
MinSize
The minimum number of nodes that the managed node group can scale in to.
double? MinSize { get; }