大量のEBSをつけたインスタンスを起動する

so_many_ebs.rb

block_device_mappings = ("b".."n").map do |name|
  {
    device_name: "/dev/sd#{name}",
    ebs: {
      volume_size: 10,
      delete_on_termination: true,
    }
  }
end

ec2.instances.create(
  image_id: "ami-87206d86",
  instance_type: "t2.micro",
  block_device_mappings: block_device_mappings,
  key_pair: ec2.key_pairs["aws-yamaguchi_ap-northeast-1"]
)

# [ec2-user@ip-172-31-23-105 ~]$ lsblk
# NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
# xvda    202:0    0  10G  0 disk
# └─xvda1 202:1    0   6G  0 part /
# xvdb    202:16   0  10G  0 disk
# xvdc    202:32   0  10G  0 disk
# xvdd    202:48   0  10G  0 disk
# xvde    202:64   0  10G  0 disk
# xvdf    202:80   0  10G  0 disk
# xvdg    202:96   0  10G  0 disk
# xvdh    202:112  0  10G  0 disk
# xvdi    202:128  0  10G  0 disk
# xvdj    202:144  0  10G  0 disk
# xvdk    202:160  0  10G  0 disk
# xvdl    202:176  0  10G  0 disk
# xvdm    202:192  0  10G  0 disk
# xvdn    202:208  0  10G  0 disk