aws iam create-role --role-name vmimport --assume-role-policy-document "file://trust-policy.json"

aws iam put-role-policy --role-name vmimport \
                        --policy-name vmimport \
                        --policy-document "file://role-policy.json"

bucket_name="n-backup"
# Add the appropriate S3 Prefix to the VM Image
vm_image_name="VM-Import/xxx.vmdk"
aws ec2 import-image --description "centosv7" --disk-containers "file://containers.json"

aws ec2 describe-import-image-tasks --import-task-ids "import-ami-0d6db3a35d431e4e3"
->
{
    "ImportImageTasks": [
        {
            "Architecture": "x86_64",
            "Description": "centosv7",
            "ImageId": "ami-0da97e2296167b5ca",
            "ImportTaskId": "import-ami-0d6db3a35d431e4e3",
            "LicenseType": "BYOL",
            "Platform": "Linux",
            "SnapshotDetails": [
                {
                    "Description": "centosv7",
                    "DeviceName": "/dev/sda1",
                    "DiskImageSize": 931182592.0,
                    "Format": "VMDK",
                    "SnapshotId": "snap-0dc6d32a5924b22c7",
                    "Status": "completed",
                    "UserBucket": {
                        "S3Bucket": "n-backup",
                        "S3Key": "VM-Import/xxx.vmdk"
                    }
                }
            ],
            "Status": "completed"
        }
    ]
}