<!-- Code generated from the comments of the RootBlockDevice struct in builder/amazon/ebssurrogate/root_block_device.go; DO NOT EDIT MANUALLY -->

-   `source_device_name` (string) - Source Device Name
-   `device_name` (string) - The device name exposed to the instance (for
    example, /dev/sdh or xvdh). Required for every device in the block
    device mapping.
    
-   `delete_on_termination` (bool) - Indicates whether the EBS volume is
    deleted on instance termination. Default false. NOTE: If this
    value is not explicitly set to true and volumes are not cleaned up by
    an alternative method, additional volumes will accumulate after every
    build.
    
-   `iops` (int64) - The number of I/O operations per second (IOPS) that
    the volume supports. See the documentation on
    IOPs
    for more information
    
-   `volume_type` (string) - The volume type. gp2 for General Purpose
    (SSD) volumes, io1 for Provisioned IOPS (SSD) volumes, st1 for
    Throughput Optimized HDD, sc1 for Cold HDD, and standard for
    Magnetic volumes.
    
-   `volume_size` (int64) - The size of the volume, in GiB. Required if
    not specifying a snapshot_id.
    