start_vm_with_cloud_init.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

#
# Copyright (c) 2016 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

import logging

import ovirtsdk4 as sdk
import ovirtsdk4.types as types

logging.basicConfig(level=logging.DEBUG, filename='example.log')

# This example will connect to the server and start a virtual machine
# with cloud-init, in order to automatically configure the network and
# the password of the `root` user.

# Create the connection to the server:
connection = sdk.Connection(
    url='https://engine41.example.com/ovirt-engine/api',
    username='admin@internal',
    password='redhat123',
    ca_file='ca.pem',
    debug=True,
    log=logging.getLogger(),
)

# Find the virtual machine:
vms_service = connection.system_service().vms_service()
vm = vms_service.list(search = 'name=myvm')[0]

# Find the service that manages the virtual machine:
vm_service = vms_service.vm_service(vm.id)

# Create cloud-init script, which you want to execute in
# deployed virtual machine, please note that the script must
# be properly formatted and indented as it's using YAML.
my_script="""
write_files:
  - content: |
      Hello, world!
    path: /tmp/greeting.txt
    permissions: '0644'
"""

# Start the virtual machine enabling cloud-init and providing the
# password for the `root` user and the network configuration:
vm_service.start(
    use_cloud_init=True,
    vm=types.Vm(
        initialization=types.Initialization(
            user_name='root',
            root_password='redhat123',
            host_name='myvm.example.com',
            nic_configurations=[
                types.NicConfiguration(
                    name='eth0',
                    on_boot=True,
                    boot_protocol=types.BootProtocol.STATIC,
                    ip=types.Ip(
                        version=types.IpVersion.V4,
                        address='192.168.0.100',
                        netmask='255.255.255.0',
                        gateway='192.168.0.1'
                    )
                )
            ],
            dns_servers='192.168.0.1 192.168.0.2 192.168.0.3',
            dns_search='example.com',
            custom_script=my_script,
        )
    )
)

# Close the connection to the server:
connection.close()