enable-fast-launch¶

Description¶

When you enable faster launching for a Windows AMI, images are pre-provisioned, using snapshots to launch instances up to 65% faster. To create the optimized Windows image, Amazon EC2 launches an instance and runs through Sysprep steps, rebooting as required. Then it creates a set of reserved snapshots that are used for subsequent launches. The reserved snapshots are automatically replenished as they are used, depending on your settings for launch frequency.

Note

To change these settings, you must own the AMI.

Synopsis¶

  enable-fast-launch
--image-id <value>
[--resource-type <value>]
[--snapshot-configuration <value>]
[--launch-template <value>]
[--max-parallel-launches <value>]
[--dry-run | --no-dry-run]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--image-id (string)

The ID of the image for which you’re enabling faster launching.

--resource-type (string)

The type of resource to use for pre-provisioning the Windows AMI for faster launching. Supported values include: snapshot , which is the default value.

--snapshot-configuration (structure)

Configuration settings for creating and managing the snapshots that are used for pre-provisioning the Windows AMI for faster launching. The associated ResourceType must be snapshot .

TargetResourceCount -> (integer)

The number of pre-provisioned snapshots to keep on hand for a fast-launch enabled Windows AMI.

Shorthand Syntax:

TargetResourceCount=integer

JSON Syntax:

{
  "TargetResourceCount": integer
}

--launch-template (structure)

The launch template to use when launching Windows instances from pre-provisioned snapshots. Launch template parameters can include either the name or ID of the launch template, but not both.

LaunchTemplateId -> (string)

The ID of the launch template to use for faster launching for a Windows AMI.

LaunchTemplateName -> (string)

The name of the launch template to use for faster launching for a Windows AMI.

Version -> (string)

The version of the launch template to use for faster launching for a Windows AMI.

Shorthand Syntax:

LaunchTemplateId=string,LaunchTemplateName=string,Version=string

JSON Syntax:

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

--max-parallel-launches (integer)

The maximum number of parallel instances to launch for creating resources. Value must be 6 or greater.

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--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. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To start fast launching for an image

The following enable-fast-launch example starts fast launching on the specified AMI and sets the maximum number of parallel instances to launch to 6. The type of resource to use to pre-provision the AMI is set to snapshot, which is also the default value.

aws ec2 enable-fast-launch \
    --image-id ami-01234567890abcedf \
    --max-parallel-launches 6 \
    --resource-type snapshot

Output:

{
    "ImageId": "ami-01234567890abcedf",
    "ResourceType": "snapshot",
    "SnapshotConfiguration": {
        "TargetResourceCount": 10
    },
    "LaunchTemplate": {},
    "MaxParallelLaunches": 6,
    "OwnerId": "0123456789123",
    "State": "enabling",
    "StateTransitionReason": "Client.UserInitiated",
    "StateTransitionTime": "2022-01-27T22:16:03.199000+00:00"
}

For more information about configuring a Windows AMI for faster launching, see Configure your AMI for faster launching in the Amazon EC2 User Guide.

Output¶

ImageId -> (string)

The image ID that identifies the Windows AMI for which faster launching was enabled.

ResourceType -> (string)

The type of resource that was defined for pre-provisioning the Windows AMI for faster launching.

SnapshotConfiguration -> (structure)

The configuration settings that were defined for creating and managing the pre-provisioned snapshots for faster launching of the Windows AMI. This property is returned when the associated resourceType is snapshot .

TargetResourceCount -> (integer)

The number of pre-provisioned snapshots requested to keep on hand for a fast-launch enabled Windows AMI.

LaunchTemplate -> (structure)

The launch template that is used when launching Windows instances from pre-provisioned snapshots.

LaunchTemplateId -> (string)

The ID of the launch template for faster launching of the associated Windows AMI.

LaunchTemplateName -> (string)

The name of the launch template for faster launching of the associated Windows AMI.

Version -> (string)

The version of the launch template for faster launching of the associated Windows AMI.

MaxParallelLaunches -> (integer)

The maximum number of parallel instances to launch for creating resources.

OwnerId -> (string)

The owner ID for the Windows AMI for which faster launching was enabled.

State -> (string)

The current state of faster launching for the specified Windows AMI.

StateTransitionReason -> (string)

The reason that the state changed for faster launching for the Windows AMI.

StateTransitionTime -> (timestamp)

The time that the state changed for faster launching for the Windows AMI.

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