Hi, Before the last update to 3.6.3 I used this code to init VMs via Cloud-Init cloud_init = params.CloudInit(regenerate_ssh_keys=True, users=params.Users(user=[params.User(user_name="root", password=vm_config.rootpw)]), files=files, host=host, network_configuration=params.NetworkConfiguration( nics=params.Nics(nic=[params.NIC(name='eth0', boot_protocol='static', on_boot=True, network=params.Network( ip=params.IP(address=vm_config.ipaddress, netmask=vm_config.netmask, gateway=vm_config.gateway)))]), dns=params.DNS(servers=params.Hosts(host=[params.Host(address=vm_config.dns1), params.Host(address=vm_config.dns2)])))) action = params.Action(use_cloud_init=True, vm=params.VM(initialization=params.Initialization(regenerate_ssh_keys=True, cloud_init=cloud_init))) vm.start(action=action) After updating to 3.6.3 the code stopped working. After initializing I get this payload: # ll -R /mnt /mnt: total 2 drwxr-xr-x. 3 root root 2048 Feb 2 19:25 openstack /mnt/openstack: total 2 drwxr-xr-x. 2 root root 2048 Feb 2 19:25 latest /mnt/openstack/latest: total 1 -rw-r-----. 1 root root 200 Feb 2 19:25 meta_data.json -rw-r-----. 1 root root 316 Feb 2 19:25 user_data # cat /mnt/openstack/latest/user_data #cloud-config ssh_pwauth: true disable_root: 0 ssh_deletekeys: 'True' output: all: '>> /var/log/cloud-init-output.log' chpasswd: expire: false runcmd: - 'sed -i ''/^datasource_list: /d'' /etc/cloud/cloud.cfg; echo ''datasource_list: ["NoCloud", "ConfigDrive"]'' >> /etc/cloud/cloud.cfg' # cat /mnt/openstack/latest/meta_data.json { "launch_index" : "0", "availability_zone" : "nova", "uuid" : "d6309b89-c793-4db5-83bc-9c38a18b1bfa", "meta" : { "essential" : "false", "role" : "server", "dsmode" : "local" } } I believe, this commit [1] changed API. Can someone give me an advice on where to change the code so it will work again? [1] https://gerrit.ovirt.org/#/c/50240/