Jank way to use instance storage automatically in EC2

gistfile1.yml

#cloud-config

mounts:
 - [ ephemeral0, /var, ext4, "defaults,noatime", "0", "2" ]
 - [ swap, null ]

bootcmd:
 - mkdir -p /tmp/root
 - mount --bind / /tmp/root
 - rsync -aq /tmp/root/var/lib/cloud /var/lib/
 - [ cloud-init-per, instance, rsync_var, rsync, -aq, /tmp/root/var/, /var ]
 - [ cloud-init-per, instance, restart_cron, service, restart, cron ]

cloud_init_modules:
 - mounts
 - resizefs
 - bootcmd
 - set_hostname
 - update_hostname
 - update_etc_hosts
 - ca-certs
 - rsyslog
 - ssh

cloud_config_modules:
 - ssh-import-id
 - locale
 - set-passwords
 - grub-dpkg
 - apt-pipelining
 - apt-update-upgrade
 - landscape
 - timezone
 - disable-ec2-metadata
 - runcmd