Specifies a block device mapping for a launch template. You must specify DeviceName
plus exactly one of the following properties: Ebs, NoDevice, or VirtualName.
BlockDeviceMapping is a property of AWS::EC2::LaunchTemplate LaunchTemplateData.
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
JSON
{
"DeviceName" : String,
"Ebs" : Ebs,
"NoDevice" : String,
"VirtualName" : String
}
YAML
DeviceName: String
Ebs:
Ebs
NoDevice: String
VirtualName: String
Properties
DeviceName-
The device name (for example, /dev/sdh or xvdh).
Required: No
Type: String
Update requires: No interruption
Ebs-
Parameters used to automatically set up EBS volumes when the instance is launched.
Required: No
Type: Ebs
Update requires: No interruption
NoDevice-
To omit the device from the block device mapping, specify an empty string.
Required: No
Type: String
Update requires: No interruption
VirtualName-
The virtual device name (ephemeralN). Instance store volumes are numbered starting from 0. An instance type with 2 available instance store volumes can specify mappings for ephemeral0 and ephemeral1. The number of available instance store volumes depends on the instance type. After you connect to the instance, you must mount the volume.
Required: No
Type: String
Update requires: No interruption
See also
-
Block device mappings in the Amazon EC2 User Guide.
