create openstack configdrive for cloud-init

create.sh

truncate -s 1M cloudconfig.img
/usr/sbin/mkfs.vfat -n config-2 cloudconfig.img
mmd -i cloudconfig.img ::openstack
mmd -i cloudconfig.img ::openstack/latest
mcopy -i cloudconfig.img meta_data.json network_data.json ::openstack/latest

meta_data.json

{
  "admin_pass": "Amgkg8aehSeZ",
  "availability_zone": "nova",
  "hostname": "XXXy",
  "launch_index": 0,
  "name": "XXXy",
  "project_id": "b884b287309140b495821eb8f0f9e30d",
  "uuid": "f8b406c4-7da1-4d20-8c44-a93dc42308e2"
}

network_data.json

{

 "networks": [
  {     "network_id": "99c7f06a-02ab-4519-894e-81dde1761ee5",
   "type": "ipv4",
   "netmask": "255.255.255.0",
   "link": "ens3",
   "routes": [
    {   "netmask": "0.0.0.0",
     "network": "0.0.0.0",
     "gateway": "1.1.1.1"}],
   "ip_address": "1.1.1.2",
   "id": "network0"}],

 "links": [
  {     "ethernet_mac_address": "52:54:00:12:34:56",
   "mtu": null,
   "type": "phy",
   "id": "ens3",
   "vif_id": "60b0567b-edf7-4af6-8d46-49eb885282eb"}]
}