create-auto-scaling-group¶

Description¶

Creates an Auto Scaling group with the specified name and attributes.

If you exceed your maximum limit of Auto Scaling groups, the call fails. To query this limit, call the DescribeAccountLimits API. For information about updating this limit, see Amazon EC2 Auto Scaling Service Quotas in the Amazon EC2 Auto Scaling User Guide .

For introductory exercises for creating an Auto Scaling group, see Getting Started with Amazon EC2 Auto Scaling and Tutorial: Set Up a Scaled and Load-Balanced Application in the Amazon EC2 Auto Scaling User Guide . For more information, see Auto Scaling Groups in the Amazon EC2 Auto Scaling User Guide .

Synopsis¶

  create-auto-scaling-group
--auto-scaling-group-name <value>
[--launch-configuration-name <value>]
[--launch-template <value>]
[--mixed-instances-policy <value>]
[--instance-id <value>]
--min-size <value>
--max-size <value>
[--desired-capacity <value>]
[--default-cooldown <value>]
[--availability-zones <value>]
[--load-balancer-names <value>]
[--target-group-arns <value>]
[--health-check-type <value>]
[--health-check-grace-period <value>]
[--placement-group <value>]
[--vpc-zone-identifier <value>]
[--termination-policies <value>]
[--new-instances-protected-from-scale-in | --no-new-instances-protected-from-scale-in]
[--lifecycle-hook-specification-list <value>]
[--tags <value>]
[--service-linked-role-arn <value>]
[--max-instance-lifetime <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]

Options¶

--auto-scaling-group-name (string)

The name of the Auto Scaling group. This name must be unique per Region per account.

--launch-configuration-name (string)

The name of the launch configuration to use when an instance is launched. To get the launch configuration name, use the DescribeLaunchConfigurations API operation. New launch configurations can be created with the CreateLaunchConfiguration API.

You must specify one of the following parameters in your request: LaunchConfigurationName , LaunchTemplate , InstanceId , or MixedInstancesPolicy .

--launch-template (structure)

Parameters used to specify the launch template and version to use when an instance is launched.

For more information, see LaunchTemplateSpecification in the Amazon EC2 Auto Scaling API Reference .

You can alternatively associate a launch template to the Auto Scaling group by using the MixedInstancesPolicy parameter.

You must specify one of the following parameters in your request: LaunchConfigurationName , LaunchTemplate , InstanceId , or MixedInstancesPolicy .

LaunchTemplateId -> (string)

The ID of the launch template. To get the template ID, use the Amazon EC2 DescribeLaunchTemplates API operation. New launch templates can be created using the Amazon EC2 CreateLaunchTemplate API.

You must specify either a template ID or a template name.

LaunchTemplateName -> (string)

The name of the launch template. To get the template name, use the Amazon EC2 DescribeLaunchTemplates API operation. New launch templates can be created using the Amazon EC2 CreateLaunchTemplate API.

You must specify either a template ID or a template name.

Version -> (string)

The version number, $Latest , or $Default . To get the version number, use the Amazon EC2 DescribeLaunchTemplateVersions API operation. New launch template versions can be created using the Amazon EC2 CreateLaunchTemplateVersion API.

If the value is $Latest , Amazon EC2 Auto Scaling selects the latest version of the launch template when launching instances. If the value is $Default , Amazon EC2 Auto Scaling selects the default version of the launch template when launching instances. The default value is $Default .

Shorthand Syntax:

LaunchTemplateId=string,LaunchTemplateName=string,Version=string

JSON Syntax:

{
  "LaunchTemplateId": "string",
  "LaunchTemplateName": "string",
  "Version": "string"
}

--mixed-instances-policy (structure)

An embedded object that specifies a mixed instances policy. The required parameters must be specified. If optional parameters are unspecified, their default values are used.

The policy includes parameters that not only define the distribution of On-Demand Instances and Spot Instances, the maximum price to pay for Spot Instances, and how the Auto Scaling group allocates instance types to fulfill On-Demand and Spot capacity, but also the parameters that specify the instance configuration information—the launch template and instance types.

For more information, see MixedInstancesPolicy in the Amazon EC2 Auto Scaling API Reference and Auto Scaling Groups with Multiple Instance Types and Purchase Options in the Amazon EC2 Auto Scaling User Guide .

You must specify one of the following parameters in your request: LaunchConfigurationName , LaunchTemplate , InstanceId , or MixedInstancesPolicy .

LaunchTemplate -> (structure)

The launch template and instance types (overrides).

Required when creating a mixed instances policy.

LaunchTemplateSpecification -> (structure)

The launch template to use. You must specify either the launch template ID or launch template name in the request.

LaunchTemplateId -> (string)

The ID of the launch template. To get the template ID, use the Amazon EC2 DescribeLaunchTemplates API operation. New launch templates can be created using the Amazon EC2 CreateLaunchTemplate API.

You must specify either a template ID or a template name.

LaunchTemplateName -> (string)

The name of the launch template. To get the template name, use the Amazon EC2 DescribeLaunchTemplates API operation. New launch templates can be created using the Amazon EC2 CreateLaunchTemplate API.

You must specify either a template ID or a template name.

Version -> (string)

The version number, $Latest , or $Default . To get the version number, use the Amazon EC2 DescribeLaunchTemplateVersions API operation. New launch template versions can be created using the Amazon EC2 CreateLaunchTemplateVersion API.

If the value is $Latest , Amazon EC2 Auto Scaling selects the latest version of the launch template when launching instances. If the value is $Default , Amazon EC2 Auto Scaling selects the default version of the launch template when launching instances. The default value is $Default .

Overrides -> (list)

Any parameters that you specify override the same parameters in the launch template. Currently, the only supported override is instance type. You can specify between 1 and 20 instance types.

If not provided, Amazon EC2 Auto Scaling will use the instance type specified in the launch template to launch instances.

(structure)

Describes an override for a launch template. Currently, the only supported override is instance type.

The maximum number of instance type overrides that can be associated with an Auto Scaling group is 20.

InstanceType -> (string)

The instance type. You must use an instance type that is supported in your requested Region and Availability Zones.

For information about available instance types, see Available Instance Types in the Amazon Elastic Compute Cloud User Guide.

WeightedCapacity -> (string)

The number of capacity units, which gives the instance type a proportional weight to other instance types. For example, larger instance types are generally weighted more than smaller instance types. These are the same units that you chose to set the desired capacity in terms of instances, or a performance attribute such as vCPUs, memory, or I/O.

For more information, see Instance Weighting for Amazon EC2 Auto Scaling in the Amazon EC2 Auto Scaling User Guide .

Valid Range: Minimum value of 1. Maximum value of 999.

InstancesDistribution -> (structure)

The instances distribution to use.

If you leave this parameter unspecified, the value for each parameter in InstancesDistribution uses a default value.

OnDemandAllocationStrategy -> (string)

Indicates how to allocate instance types to fulfill On-Demand capacity.

The only valid value is prioritized , which is also the default value. This strategy uses the order of instance type overrides for the LaunchTemplate to define the launch priority of each instance type. The first instance type in the array is prioritized higher than the last. If all your On-Demand capacity cannot be fulfilled using your highest priority instance, then the Auto Scaling groups launches the remaining capacity using the second priority instance type, and so on.

OnDemandBaseCapacity -> (integer)

The minimum amount of the Auto Scaling group’s capacity that must be fulfilled by On-Demand Instances. This base portion is provisioned first as your group scales.

Default if not set is 0. If you leave it set to 0, On-Demand Instances are launched as a percentage of the Auto Scaling group’s desired capacity, per the OnDemandPercentageAboveBaseCapacity setting.

Note

An update to this setting means a gradual replacement of instances to maintain the specified number of On-Demand Instances for your base capacity. When replacing instances, Amazon EC2 Auto Scaling launches new instances before terminating the old ones.

OnDemandPercentageAboveBaseCapacity -> (integer)

Controls the percentages of On-Demand Instances and Spot Instances for your additional capacity beyond OnDemandBaseCapacity .

Default if not set is 100. If you leave it set to 100, the percentages are 100% for On-Demand Instances and 0% for Spot Instances.

Note

An update to this setting means a gradual replacement of instances to maintain the percentage of On-Demand Instances for your additional capacity above the base capacity. When replacing instances, Amazon EC2 Auto Scaling launches new instances before terminating the old ones.

Valid Range: Minimum value of 0. Maximum value of 100.

SpotAllocationStrategy -> (string)

Indicates how to allocate instances across Spot Instance pools.

If the allocation strategy is lowest-price , the Auto Scaling group launches instances using the Spot pools with the lowest price, and evenly allocates your instances across the number of Spot pools that you specify. If the allocation strategy is capacity-optimized , the Auto Scaling group launches instances using Spot pools that are optimally chosen based on the available Spot capacity.

The default Spot allocation strategy for calls that you make through the API, the AWS CLI, or the AWS SDKs is lowest-price . The default Spot allocation strategy for the AWS Management Console is capacity-optimized .

Valid values: lowest-price | capacity-optimized

SpotInstancePools -> (integer)

The number of Spot Instance pools across which to allocate your Spot Instances. The Spot pools are determined from the different instance types in the Overrides array of LaunchTemplate . Default if not set is 2.

Used only when the Spot allocation strategy is lowest-price .

Valid Range: Minimum value of 1. Maximum value of 20.

SpotMaxPrice -> (string)

The maximum price per unit hour that you are willing to pay for a Spot Instance. If you leave the value of this parameter blank (which is the default), the maximum Spot price is set at the On-Demand price.

To remove a value that you previously set, include the parameter but leave the value blank.

JSON Syntax:

{
  "LaunchTemplate": {
    "LaunchTemplateSpecification": {
      "LaunchTemplateId": "string",
      "LaunchTemplateName": "string",
      "Version": "string"
    },
    "Overrides": [
      {
        "InstanceType": "string",
        "WeightedCapacity": "string"
      }
      ...
    ]
  },
  "InstancesDistribution": {
    "OnDemandAllocationStrategy": "string",
    "OnDemandBaseCapacity": integer,
    "OnDemandPercentageAboveBaseCapacity": integer,
    "SpotAllocationStrategy": "string",
    "SpotInstancePools": integer,
    "SpotMaxPrice": "string"
  }
}

--instance-id (string)

The ID of the instance used to create a launch configuration for the group. To get the instance ID, use the Amazon EC2 DescribeInstances API operation.

When you specify an ID of an instance, Amazon EC2 Auto Scaling creates a new launch configuration and associates it with the group. This launch configuration derives its attributes from the specified instance, except for the block device mapping.

You must specify one of the following parameters in your request: LaunchConfigurationName , LaunchTemplate , InstanceId , or MixedInstancesPolicy .

--min-size (integer)

The minimum size of the group.

--max-size (integer)

The maximum size of the group.

Note

With a mixed instances policy that uses instance weighting, Amazon EC2 Auto Scaling may need to go above MaxSize to meet your capacity requirements. In this event, Amazon EC2 Auto Scaling will never go above MaxSize by more than your maximum instance weight (weights that define how many capacity units each instance contributes to the capacity of the group).

--desired-capacity (integer)

The desired capacity is the initial capacity of the Auto Scaling group at the time of its creation and the capacity it attempts to maintain. It can scale beyond this capacity if you configure automatic scaling.

This number must be greater than or equal to the minimum size of the group and less than or equal to the maximum size of the group. If you do not specify a desired capacity, the default is the minimum size of the group.

--default-cooldown (integer)

The amount of time, in seconds, after a scaling activity completes before another scaling activity can start. The default value is 300 .

This setting applies when using simple scaling policies, but not when using other scaling policies or scheduled scaling. For more information, see Scaling Cooldowns for Amazon EC2 Auto Scaling in the Amazon EC2 Auto Scaling User Guide .

--availability-zones (list)

One or more Availability Zones for the group. This parameter is optional if you specify one or more subnets for VPCZoneIdentifier .

Conditional: If your account supports EC2-Classic and VPC, this parameter is required to launch instances into EC2-Classic.

(string)

Syntax:

"string" "string" ...

--load-balancer-names (list)

A list of Classic Load Balancers associated with this Auto Scaling group. For Application Load Balancers and Network Load Balancers, specify a list of target groups using the TargetGroupARNs property instead.

For more information, see Using a Load Balancer with an Auto Scaling Group in the Amazon EC2 Auto Scaling User Guide .

(string)

Syntax:

"string" "string" ...

--target-group-arns (list)

The Amazon Resource Names (ARN) of the target groups to associate with the Auto Scaling group. Instances are registered as targets in a target group, and traffic is routed to the target group.

For more information, see Using a Load Balancer with an Auto Scaling Group in the Amazon EC2 Auto Scaling User Guide .

(string)

Syntax:

"string" "string" ...

--health-check-type (string)

The service to use for the health checks. The valid values are EC2 and ELB . The default value is EC2 . If you configure an Auto Scaling group to use ELB health checks, it considers the instance unhealthy if it fails either the EC2 status checks or the load balancer health checks.

For more information, see Health Checks for Auto Scaling Instances in the Amazon EC2 Auto Scaling User Guide .

--health-check-grace-period (integer)

The amount of time, in seconds, that Amazon EC2 Auto Scaling waits before checking the health status of an EC2 instance that has come into service. During this time, any health check failures for the instance are ignored. The default value is 0 .

For more information, see Health Check Grace Period in the Amazon EC2 Auto Scaling User Guide .

Required if you are adding an ELB health check.

--placement-group (string)

The name of the placement group into which to launch your instances, if any. A placement group is a logical grouping of instances within a single Availability Zone. You cannot specify multiple Availability Zones and a placement group. For more information, see Placement Groups in the Amazon EC2 User Guide for Linux Instances .

--vpc-zone-identifier (string)

A comma-separated list of subnet IDs for your virtual private cloud (VPC).

If you specify VPCZoneIdentifier with AvailabilityZones , the subnets that you specify for this parameter must reside in those Availability Zones.

Conditional: If your account supports EC2-Classic and VPC, this parameter is required to launch instances into a VPC.

--termination-policies (list)

One or more termination policies used to select the instance to terminate. These policies are executed in the order that they are listed.

For more information, see Controlling Which Instances Auto Scaling Terminates During Scale In in the Amazon EC2 Auto Scaling User Guide .

(string)

Syntax:

"string" "string" ...

--new-instances-protected-from-scale-in | --no-new-instances-protected-from-scale-in (boolean)

Indicates whether newly launched instances are protected from termination by Amazon EC2 Auto Scaling when scaling in.

For more information about preventing instances from terminating on scale in, see Instance Protection in the Amazon EC2 Auto Scaling User Guide .

--lifecycle-hook-specification-list (list)

One or more lifecycle hooks.

(structure)

Describes information used to specify a lifecycle hook for an Auto Scaling group.

A lifecycle hook tells Amazon EC2 Auto Scaling to perform an action on an instance when the instance launches (before it is put into service) or as the instance terminates (before it is fully terminated).

This step is a part of the procedure for creating a lifecycle hook for an Auto Scaling group:

(Optional) Create a Lambda function and a rule that allows CloudWatch Events to invoke your Lambda function when Amazon EC2 Auto Scaling launches or terminates instances.

(Optional) Create a notification target and an IAM role. The target can be either an Amazon SQS queue or an Amazon SNS topic. The role allows Amazon EC2 Auto Scaling to publish lifecycle notifications to the target.

Create the lifecycle hook. Specify whether the hook is used when the instances launch or terminate.

If you need more time, record the lifecycle action heartbeat to keep the instance in a pending state.

If you finish before the timeout period ends, complete the lifecycle action.

For more information, see Amazon EC2 Auto Scaling Lifecycle Hooks in the Amazon EC2 Auto Scaling User Guide .

LifecycleHookName -> (string)

The name of the lifecycle hook.

LifecycleTransition -> (string)

The state of the EC2 instance to which you want to attach the lifecycle hook. The valid values are:

autoscaling:EC2_INSTANCE_LAUNCHING

autoscaling:EC2_INSTANCE_TERMINATING

NotificationMetadata -> (string)

Additional information that you want to include any time Amazon EC2 Auto Scaling sends a message to the notification target.

HeartbeatTimeout -> (integer)

The maximum time, in seconds, that can elapse before the lifecycle hook times out.

If the lifecycle hook times out, Amazon EC2 Auto Scaling performs the action that you specified in the DefaultResult parameter. You can prevent the lifecycle hook from timing out by calling RecordLifecycleActionHeartbeat .

DefaultResult -> (string)

Defines the action the Auto Scaling group should take when the lifecycle hook timeout elapses or if an unexpected failure occurs. The valid values are CONTINUE and ABANDON . The default value is ABANDON .

NotificationTargetARN -> (string)

The ARN of the target that Amazon EC2 Auto Scaling sends notifications to when an instance is in the transition state for the lifecycle hook. The notification target can be either an SQS queue or an SNS topic.

RoleARN -> (string)

The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target, for example, an Amazon SNS topic or an Amazon SQS queue.

Shorthand Syntax:

LifecycleHookName=string,LifecycleTransition=string,NotificationMetadata=string,HeartbeatTimeout=integer,DefaultResult=string,NotificationTargetARN=string,RoleARN=string ...

JSON Syntax:

[
  {
    "LifecycleHookName": "string",
    "LifecycleTransition": "string",
    "NotificationMetadata": "string",
    "HeartbeatTimeout": integer,
    "DefaultResult": "string",
    "NotificationTargetARN": "string",
    "RoleARN": "string"
  }
  ...
]

--tags (list)

One or more tags. You can tag your Auto Scaling group and propagate the tags to the Amazon EC2 instances it launches.

Tags are not propagated to Amazon EBS volumes. To add tags to Amazon EBS volumes, specify the tags in a launch template but use caution. If the launch template specifies an instance tag with a key that is also specified for the Auto Scaling group, Amazon EC2 Auto Scaling overrides the value of that instance tag with the value specified by the Auto Scaling group.

For more information, see Tagging Auto Scaling Groups and Instances in the Amazon EC2 Auto Scaling User Guide .

(structure)

Describes a tag for an Auto Scaling group.

ResourceId -> (string)

The name of the group.

ResourceType -> (string)

The type of resource. The only supported value is auto-scaling-group .

Key -> (string)

The tag key.

Value -> (string)

The tag value.

PropagateAtLaunch -> (boolean)

Determines whether the tag is added to new instances as they are launched in the group.

Shorthand Syntax:

ResourceId=string,ResourceType=string,Key=string,Value=string,PropagateAtLaunch=boolean ...

JSON Syntax:

[
  {
    "ResourceId": "string",
    "ResourceType": "string",
    "Key": "string",
    "Value": "string",
    "PropagateAtLaunch": true|false
  }
  ...
]

--service-linked-role-arn (string)

The Amazon Resource Name (ARN) of the service-linked role that the Auto Scaling group uses to call other AWS services on your behalf. By default, Amazon EC2 Auto Scaling uses a service-linked role named AWSServiceRoleForAutoScaling, which it creates if it does not exist. For more information, see Service-Linked Roles in the Amazon EC2 Auto Scaling User Guide .

--max-instance-lifetime (integer)

The maximum amount of time, in seconds, that an instance can be in service. The default is null.

This parameter is optional, but if you specify a value for it, you must specify a value of at least 604,800 seconds (7 days). To clear a previously set value, specify a new value of 0.

For more information, see Replacing Auto Scaling Instances Based on Maximum Instance Lifetime in the Amazon EC2 Auto Scaling User Guide .

Valid Range: Minimum value of 0.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

--cli-auto-prompt (boolean) Automatically prompt for CLI input parameters.

See ‘aws help’ for descriptions of global parameters.

Examples¶

To create an Auto Scaling group using a launch configuration

This example creates an Auto Scaling group in a VPC using a launch configuration to specify the type of EC2 instance that Amazon EC2 Auto Scaling creates:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --launch-configuration-name my-launch-config --min-size 1 --max-size 3 --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782"

This example creates an Auto Scaling group and configures it to use an Elastic Load Balancing load balancer:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --launch-configuration-name my-launch-config --load-balancer-names my-load-balancer --health-check-type ELB --health-check-grace-period 120 --min-size 1 --max-size 3 --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782"

This example specifies a desired capacity as well as a minimum and maximum capacity. It also launches instances into a placement group and sets the termination policy to terminate the oldest instances first:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --launch-configuration-name my-launch-config --min-size 1 --max-size 3 --desired-capacity 1 --placement-group my-placement-group --termination-policies "OldestInstance" --availability-zones us-west-2c

To create an Auto Scaling group using an EC2 instance

This example creates an Auto Scaling group from the specified EC2 instance and assigns a tag to instances in the group:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --instance-id i-22c99e2a --min-size 1 --max-size 3 --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782" --tags "ResourceId=my-asg,ResourceType=auto-scaling-group,Key=Role,Value=WebServer,PropagateAtLaunch=true"

To create an Auto Scaling group using a launch template

This example creates an Auto Scaling group in a VPC using a launch template to specify the type of EC2 instance that Amazon EC2 Auto Scaling creates:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --launch-template "LaunchTemplateName=my-template-for-auto-scaling,Version=1" --min-size 1 --max-size 3 --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782"

This example uses the default version of the specified launch template. It specifies Availability Zones and subnets and enables the instance protection setting:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --launch-template LaunchTemplateId=lt-0a4872e2c396d941c --min-size 1 --max-size 3 --desired-capacity 2 --availability-zones us-west-2a us-west-2b us-west-2c --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782" --new-instances-protected-from-scale-in

This example creates an Auto Scaling group that launches a single instance using a launch template to optionally specify the ID of an existing network interface (ENI ID) to use. It specifies an Availability Zone that matches the specified network interface:

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg-single-instance --launch-template "LaunchTemplateName=my-single-instance-asg-template,Version=2" --min-size 1 --max-size 1 --availability-zones us-west-2a

This example creates an Auto Scaling group with a lifecycle hook that supports a custom action at instance termination:

aws autoscaling create-auto-scaling-group --cli-input-json file://~/config.json

Contents of config.json file:

{
    "AutoScalingGroupName": "my-asg",
    "LaunchTemplate": {
        "LaunchTemplateId": "lt-0a4872e2c396d941c"
    },
    "LifecycleHookSpecificationList": [{
        "LifecycleHookName": "my-hook",
        "LifecycleTransition": "autoscaling:EC2_INSTANCE_TERMINATING",
        "NotificationTargetARN": "arn:aws:sqs:us-west-2:123456789012:my-sqs-queue",
        "RoleARN": "arn:aws:iam::123456789012:role/my-notification-role",
        "HeartbeatTimeout": 300,
        "DefaultResult": "CONTINUE"
    }],
    "MinSize": 1,
    "MaxSize": 5,
    "VPCZoneIdentifier": "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782",
    "Tags": [{
          "ResourceType": "auto-scaling-group",
          "ResourceId": "my-asg",
          "PropagateAtLaunch": true,
          "Value": "test",
          "Key": "environment"
    }]
}

For more information, see the Amazon EC2 Auto Scaling User Guide.

Output¶

None

Table of Contents

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User Guide

create-auto-scaling-group¶

Description¶

Synopsis¶

Options¶

Examples¶

Output¶