imageId

The ID of the AMI in the format ami-17characters00000.

Alternatively, you can specify a Systems Manager parameter, using one of the following formats. The Systems Manager parameter will resolve to an AMI ID on launch.

To reference a public parameter:

• resolve:ssm:<i>public-parameter</i>

To reference a parameter stored in the same account:

• resolve:ssm:<i>parameter-name</i>

• resolve:ssm:<i>parameter-name:version-number</i>

• resolve:ssm:<i>parameter-name:label</i>

To reference a parameter shared from another Amazon Web Services account:

• resolve:ssm:<i>parameter-ARN</i>

• resolve:ssm:<i>parameter-ARN:version-number</i>

• resolve:ssm:<i>parameter-ARN:label</i>

For more information, see Use a Systems Manager parameter instead of an AMI ID in the Amazon EC2 User Guide.

This parameter is only available for fleets of type instant. For fleets of type maintain and request, you must specify the AMI ID in the launch template.