Initialize an OVB network called provision_bob.

def initialize_network(neutron):
    """Initialize an OVB network called provision_bob.
    """
    body_sample = {
        "network": {
            "name": 'provision_bob',
            "admin_state_up": True,
        }
    }
    netw = neutron.create_network(body=body_sample)['network']
    body_create_subnet = {
        'subnets': [{
            'name': 'rdo-m-subnet',
            'cidr': '192.0.2.0/24',
            'ip_version': 4,
            'network_id': netw['id'],
            'host_routes': [{
                'destination': '169.254.169.254/32',
                'nexthop': '192.0.2.240'
            }],
            'gateway_ip': '192.0.2.1',
            'dns_nameservers': ['8.8.8.8', '8.8.4.4'],
            'allocation_pools': [{'start': '192.0.2.30', 'end': '192.0.2.199'}]}]}
    response = neutron.create_subnet(body=body_create_subnet)
    subnet_id = response['subnets'][0]['id']
    router = neutron.list_routers(name='router').get('routers')[0]
    response = neutron.add_interface_router(router['id'], {'subnet_id': subnet_id})