Graham Christensen

When creating an AMI through Packer, you’re able to describe what type of devices you want to attach to the device.

Using launch_block_device_mappings will provide the specified devices during the AMI configuration. Using ami_block_device_mappings will attach the devices to the server when it launches.

Amazon recommends starting device_name at sde.

VolumeTypes

• standard: magnetic disk
• gp2: SSD
• io1: Provisioned IOPS on SSD (requires iops to be specified.)

Example

{
  "builders": [{
    "ami_block_device_mappings": [
      {
        "device_name": "/dev/sde",
        "volume_type": "standard"
      },
      {
        "device_name": "/dev/sdf",
      },
      {
        "device_name": "/dev/sdg",
        "volume_type": "gp2"
      },
      {
        "device_name": "/dev/sdh",
        "volume_type": "io1",
        "iops": 1000
      }

    ]
  }]
}