Creates or updates a scaling policy for an Auto Scaling group.
autoscaling_put_scaling_policy(AutoScalingGroupName, PolicyName,
PolicyType, AdjustmentType, MinAdjustmentStep, MinAdjustmentMagnitude,
ScalingAdjustment, Cooldown, MetricAggregationType, StepAdjustments,
EstimatedInstanceWarmup, TargetTrackingConfiguration, Enabled)
[required] The name of the Auto Scaling group.
[required] The name of the policy.
One of the following policy types:
TargetTrackingScaling
StepScaling
SimpleScaling
(default)
Specifies how the scaling adjustment is interpreted (either an absolute
number or a percentage). The valid values are ChangeInCapacity
,
ExactCapacity
, and PercentChangeInCapacity
.
Required if the policy type is StepScaling
or SimpleScaling
. For
more information, see Scaling Adjustment Types
in the Amazon EC2 Auto Scaling User Guide.
Available for backward compatibility. Use MinAdjustmentMagnitude
instead.
The minimum value to scale by when the adjustment type is
PercentChangeInCapacity
. For example, suppose that you create a step
scaling policy to scale out an Auto Scaling group by 25 percent and you
specify a MinAdjustmentMagnitude
of 2. If the group has 4 instances
and the scaling policy is performed, 25 percent of 4 is 1. However,
because you specified a MinAdjustmentMagnitude
of 2, Amazon EC2 Auto
Scaling scales out the group by 2 instances.
Valid only if the policy type is StepScaling
or SimpleScaling
. For
more information, see Scaling Adjustment Types
in the Amazon EC2 Auto Scaling User Guide.
Some Auto Scaling groups use instance weights. In this case, set the
MinAdjustmentMagnitude
to a value that is at least as large as your
largest instance weight.
The amount by which to scale, based on the specified adjustment type. A positive value adds to the current capacity while a negative number removes from the current capacity. For exact capacity, you must specify a positive value.
Required if the policy type is SimpleScaling
. (Not used with any other
policy type.)
The duration of the policy\'s cooldown period, in seconds. When a cooldown period is specified here, it overrides the default cooldown period defined for the Auto Scaling group.
Valid only if the policy type is SimpleScaling
. For more information,
see Scaling Cooldowns for Amazon EC2 Auto Scaling
in the Amazon EC2 Auto Scaling User Guide.
The aggregation type for the CloudWatch metrics. The valid values are
Minimum
, Maximum
, and Average
. If the aggregation type is null,
the value is treated as Average
.
Valid only if the policy type is StepScaling
.
A set of adjustments that enable you to scale based on the size of the alarm breach.
Required if the policy type is StepScaling
. (Not used with any other
policy type.)
The estimated time, in seconds, until a newly launched instance can contribute to the CloudWatch metrics. If not provided, the default is to use the value from the default cooldown period for the Auto Scaling group.
Valid only if the policy type is TargetTrackingScaling
or
StepScaling
.
A target tracking scaling policy. Includes support for predefined or customized metrics.
The following predefined metrics are available:
ASGAverageCPUUtilization
ASGAverageNetworkIn
ASGAverageNetworkOut
ALBRequestCountPerTarget
If you specify ALBRequestCountPerTarget
for the metric, you must
specify the ResourceLabel
parameter with the
PredefinedMetricSpecification
.
For more information, see TargetTrackingConfiguration in the Amazon EC2 Auto Scaling API Reference.
Required if the policy type is TargetTrackingScaling
.
Indicates whether the scaling policy is enabled or disabled. The default is enabled. For more information, see Disabling a Scaling Policy for an Auto Scaling Group in the Amazon EC2 Auto Scaling User Guide.
svc$put_scaling_policy( AutoScalingGroupName = "string", PolicyName = "string", PolicyType = "string", AdjustmentType = "string", MinAdjustmentStep = 123, MinAdjustmentMagnitude = 123, ScalingAdjustment = 123, Cooldown = 123, MetricAggregationType = "string", StepAdjustments = list( list( MetricIntervalLowerBound = 123.0, MetricIntervalUpperBound = 123.0, ScalingAdjustment = 123 ) ), EstimatedInstanceWarmup = 123, TargetTrackingConfiguration = list( PredefinedMetricSpecification = list( PredefinedMetricType = "ASGAverageCPUUtilization"|"ASGAverageNetworkIn"|"ASGAverageNetworkOut"|"ALBRequestCountPerTarget", ResourceLabel = "string" ), CustomizedMetricSpecification = list( MetricName = "string", Namespace = "string", Dimensions = list( list( Name = "string", Value = "string" ) ), Statistic = "Average"|"Minimum"|"Maximum"|"SampleCount"|"Sum", Unit = "string" ), TargetValue = 123.0, DisableScaleIn = TRUE|FALSE ), Enabled = TRUE|FALSE )
For more information about using scaling policies to scale your Auto Scaling group, see Target Tracking Scaling Policies and Step and Simple Scaling Policies in the Amazon EC2 Auto Scaling User Guide.
# NOT RUN {
# This example adds the specified policy to the specified Auto Scaling
# group.
svc$put_scaling_policy(
AutoScalingGroupName = "my-auto-scaling-group",
PolicyName = "alb1000-target-tracking-scaling-policy",
PolicyType = "TargetTrackingScaling",
TargetTrackingConfiguration = list(
PredefinedMetricSpecification = list(
PredefinedMetricType = "ALBRequestCountPerTarget",
ResourceLabel = "app/EC2Co-EcsEl-1TKLTMITMM0EO/f37c06a68c1748aa/targetgroup/EC2Co-Defa..."
),
TargetValue = 1000
)
)
# }
# NOT RUN {
# }
Run the code above in your browser using DataLab