class Aws::AutoScaling::Types::RefreshPreferences
Describes the preferences for an instance refresh.
@note When making an API call, you may pass RefreshPreferences
data as a hash: { min_healthy_percentage: 1, instance_warmup: 1, checkpoint_percentages: [1], checkpoint_delay: 1, skip_matching: false, }
@!attribute [rw] min_healthy_percentage
The amount of capacity in the Auto Scaling group that must remain healthy during an instance refresh to allow the operation to continue. The value is expressed as a percentage of the desired capacity of the Auto Scaling group (rounded up to the nearest integer). The default is `90`. Setting the minimum healthy percentage to 100 percent limits the rate of replacement to one instance at a time. In contrast, setting it to 0 percent has the effect of replacing all instances at the same time. @return [Integer]
@!attribute [rw] instance_warmup
The number of seconds until a newly launched instance is configured and ready to use. During this time, Amazon EC2 Auto Scaling does not immediately move on to the next replacement. The default is to use the value for the health check grace period defined for the group. @return [Integer]
@!attribute [rw] checkpoint_percentages
Threshold values for each checkpoint in ascending order. Each number must be unique. To replace all instances in the Auto Scaling group, the last number in the array must be `100`. For usage examples, see [Adding checkpoints to an instance refresh][1] in the *Amazon EC2 Auto Scaling User Guide*. [1]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/asg-adding-checkpoints-instance-refresh.html @return [Array<Integer>]
@!attribute [rw] checkpoint_delay
The amount of time, in seconds, to wait after a checkpoint before continuing. This property is optional, but if you specify a value for it, you must also specify a value for `CheckpointPercentages`. If you specify a value for `CheckpointPercentages` and not for `CheckpointDelay`, the `CheckpointDelay` defaults to `3600` (1 hour). @return [Integer]
@!attribute [rw] skip_matching
A boolean value that indicates whether skip matching is enabled. If true, then Amazon EC2 Auto Scaling skips replacing instances that match the desired configuration. If no desired configuration is specified, then it skips replacing instances that have the same configuration that is already set on the group. The default is `false`. @return [Boolean]
@see docs.aws.amazon.com/goto/WebAPI/autoscaling-2011-01-01/RefreshPreferences AWS API Documentation
Constants
- SENSITIVE