使用AWS cli 如何创建系统盘为SSD的EC2

Question

求教：使用AWS cli 如何创建系统盘为SSD的EC2  ？

Answer 1

在block-device-mappings显示指定使用gp2（ssd）的硬盘作为根设备（/dev/xvda）
aws ec2 run-instances --image-id=ami-146e2a7c --key-name=你的秘钥 --instance-type=t2.micro --block-device-mappings="[{\"DeviceName\":\"/dev/xvda\",\"Ebs\":{\"DeleteOnTermination\":true,\"VolumeSize\":8,\"VolumeType\":\"gp2\"}}]"
不同的image根设备路径不一样
下面的命令查看image的根设备路径，下面的RootDeviceName字段aws ec2 describe-images --image-ids ami-146e2a7c{
    "Images": [
        {
            "VirtualizationType": "hvm", 
            "Name": "amzn-ami-hvm-2014.09.2.x86_64-ebs", 
            "Hypervisor": "xen", 
            "ImageOwnerAlias": "amazon", 
            "SriovNetSupport": "simple", 
            "ImageId": "ami-146e2a7c", 
            "State": "available", 
            "BlockDeviceMappings": [
                {
                    "DeviceName": "/dev/xvda", 
                    "Ebs": {
                        "DeleteOnTermination": true, 
                        "SnapshotId": "snap-6a3ad4e7", 
                        "VolumeSize": 8, 
                        "VolumeType": "standard", 
                        "Encrypted": false
                    }
                }
            ], 
            "Architecture": "x86_64", 
            "ImageLocation": "amazon/amzn-ami-hvm-2014.09.2.x86_64-ebs", 
            "RootDeviceType": "ebs", 
            "OwnerId": "137112412989", 
            "RootDeviceName": "/dev/xvda", 
            "CreationDate": "2015-01-27T23:23:29.000Z", 
            "Public": true, 
            "ImageType": "machine", 
            "Description": "Amazon Linux AMI 2014.09.2 x86_64 HVM EBS"
        }
    ]
}