$ aws ec2 describe-instances { "Reservations": [ { "OwnerId": "xxxxxxxxxxx", "ReservationId": "r-xxxxxxx", "Groups": [], "Instances": [ { "Monitoring": { "State": "disabled" }, "PublicDnsName": "", "State": { "Code": 16, "Name": "running" }, ・ ・ ・ "Architecture": "x86_64", "RootDeviceType": "ebs", "RootDeviceName": "/dev/xvda", "VirtualizationType": "hvm", "Tags": [ { "Value": "example.com", "Key"