Use DescribeLaunchConfigurations with a CLI

Example 1: To describe the specified launch configuration

This example describes the specified launch configuration.

aws autoscaling describe-launch-configurations \
    --launch-configuration-names my-launch-config

Output:

{
    "LaunchConfigurations": [
        {
            "LaunchConfigurationName": "my-launch-config",
            "LaunchConfigurationARN": "arn:aws:autoscaling:us-west-2:123456789012:launchConfiguration:98d3b196-4cf9-4e88-8ca1-8547c24ced8b:launchConfigurationName/my-launch-config",
            "ImageId": "ami-0528a5175983e7f28",
            "KeyName": "my-key-pair-uswest2",
            "SecurityGroups": [
                "sg-05eaec502fcdadc2e"
            ],
            "ClassicLinkVPCSecurityGroups": [],
            "UserData": "",
            "InstanceType": "t2.micro",
            "KernelId": "",
            "RamdiskId": "",
            "BlockDeviceMappings": [
                {
                    "DeviceName": "/dev/xvda",
                    "Ebs": {
                        "SnapshotId": "snap-06c1606ba5ca274b1",
                        "VolumeSize": 8,
                        "VolumeType": "gp2",
                        "DeleteOnTermination": true,
                        "Encrypted": false
                    }
                }
            ],
            "InstanceMonitoring": {
                "Enabled": true
            },
            "CreatedTime": "2020-10-28T02:39:22.321Z",
            "EbsOptimized": false,
            "AssociatePublicIpAddress": true,
            "MetadataOptions": {
                "HttpTokens": "required",
                "HttpPutResponseHopLimit": 1,
                "HttpEndpoint": "disabled"
            }
        }
    ]
}

Example 2: To describe a specified number of launch configurations

To return a specific number of launch configurations, use the --max-items option.

aws autoscaling describe-launch-configurations \
    --max-items 1

If the output includes a NextToken field, there are more launch configurations. To get the additional launch configurations, use the value of this field with the --starting-token option in a subsequent call as follows.

aws autoscaling describe-launch-configurations \
    --starting-token Z3M3LMPEXAMPLE

Example 1: This example lists the names of your launch configurations.

Get-ASLaunchConfiguration | format-table -property LaunchConfigurationName

Output:

LaunchConfigurationName
-----------------------
my-lc-1
my-lc-2
my-lc-3
my-lc-4
my-lc-5

Example 2: This example describes the specified launch configuration.

Get-ASLaunchConfiguration -LaunchConfigurationName my-lc-1

Output:

AssociatePublicIpAddress     : True
BlockDeviceMappings          : {/dev/xvda}
ClassicLinkVPCId             :
ClassicLinkVPCSecurityGroups : {}
CreatedTime                  : 12/12/2014 3:22:08 PM
EbsOptimized                 : False
IamInstanceProfile           :
ImageId                      : ami-043a5034
InstanceMonitoring           : Amazon.AutoScaling.Model.InstanceMonitoring
InstanceType                 : t2.micro
KernelId                     :
KeyName                      : 
LaunchConfigurationARN       : arn:aws:autoscaling:us-west-2:123456789012:launchConfiguration:7e5f31e4-693b-4604-9322-
                               e6f68d7fafad:launchConfigurationName/my-lc-1
LaunchConfigurationName      : my-lc-1
PlacementTenancy             :
RamdiskId                    :
SecurityGroups               : {sg-67ef0308}
SpotPrice                    :
UserData                     :

Example 3: This example describes the specified two launch configurations.

Get-ASLaunchConfiguration -LaunchConfigurationName @("my-lc-1", "my-lc-2")

Example 4: This example describes all your launch configurations.

Get-ASLaunchConfiguration