spot-fleet-config.json

{
  "IamFleetRole": "arn:aws:iam::<aws-account-id>:role/<fleet-role-name>",
  "AllocationStrategy": "lowestPrice",
  "TargetCapacity": 2,
  "SpotPrice": "0.105",
  "ValidUntil": "2050-01-01T00:00:00Z",
  "TerminateInstancesWithExpiration": false,
  "LaunchSpecifications": [
    {
      "ImageId": "<ami-id-for-your-region>",
      "InstanceType": "c3.large",
      "KeyName": "<your-key-name>",
      "SpotPrice": "0.105",
      "IamInstanceProfile": {
        "Arn": "arn:aws:iam::<aws-account-id>:instance-profile/<instance-role-name>"
      },
      "BlockDeviceMappings": [
        {
          "DeviceName": "/dev/xvdcz",
          "Ebs": {
            "DeleteOnTermination": true,
            "VolumeType": "gp2",
            "VolumeSize": 22
          }
        }
      ]
    }
  ],
  "Type": "request"
}