AWSAutoScalingInstanceMaintenancePolicy

Objective-C

@interface AWSAutoScalingInstanceMaintenancePolicy

Swift

class AWSAutoScalingInstanceMaintenancePolicy

Describes an instance maintenance policy.

For more information, see Set instance maintenance policy in the Amazon EC2 Auto Scaling User Guide.

  • Specifies the upper threshold as a percentage of the desired capacity of the Auto Scaling group. It represents the maximum percentage of the group that can be in service and healthy, or pending, to support your workload when replacing instances. Value range is 100 to 200. To clear a previously set value, specify a value of -1.

    Both MinHealthyPercentage and MaxHealthyPercentage must be specified, and the difference between them cannot be greater than 100. A large range increases the number of instances that can be replaced at the same time.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable maxHealthyPercentage;

    Swift

    var maxHealthyPercentage: NSNumber? { get set }

  • Specifies the lower threshold as a percentage of the desired capacity of the Auto Scaling group. It represents the minimum percentage of the group to keep in service, healthy, and ready to use to support your workload when replacing instances. Value range is 0 to 100. To clear a previously set value, specify a value of -1.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable minHealthyPercentage;

    Swift

    var minHealthyPercentage: NSNumber? { get set }