def get_iface_xml(params, arch=None, os_distro=None, os_version=None):
"""
<interface type='network'>
<source network='default'/>
<model type='virtio'/>
</interface>
"""
interface = E.interface(type=params['type'])
interface.append(E.source(network=params['network']))
model = params.get('model')
# no model specified; let's try querying osinfo
if model is None:
# if os_distro and os_version are invalid, nic_model will also be None
model = osinfo.lookup(os_distro, os_version).get('nic_model')
# only append 'model' to the XML if it's been specified as a parameter or
# returned by osinfo.lookup; otherwise let libvirt use its default value
if model is not None:
interface.append(E.model(type=model))
mac = params.get('mac', None)
if mac is not None:
interface.append(E.mac(address=mac))
# Hack to disable vhost feature in Ubuntu LE and SLES LE (PPC)
if arch == 'ppc64' and \
((os_distro == 'ubuntu' and
LooseVersion(os_version) >= LooseVersion('14.04')) or
(os_distro == 'sles' and
LooseVersion(os_version) >= LooseVersion('12'))):
interface.append(E.driver(name='qemu'))
return ET.tostring(interface, encoding='utf-8', pretty_print=True)
def test_modern_bases(self):
for distro, version in modern_version_bases[_get_arch()].iteritems():
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('modern', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('modern', 'nic_model'))
def test_modern_bases(self):
for distro, version in modern_version_bases[_get_arch()].iteritems():
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('modern', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('modern', 'nic_model'))
def test_modern_bases(self):
if not os.uname()[4] == 's390x':
for distro, version in modern_version_bases[_get_arch()].items():
entry = lookup(distro, version)
self.assertEqual(entry['disk_bus'],
get_template_default('modern', 'disk_bus'))
self.assertEqual(entry['nic_model'],
get_template_default('modern', 'nic_model'))
def test_lookup_unknown_distro_version_returns_old_distro(self):
distro = 'unknown_distro'
version = 'unknown_version'
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('old', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('old', 'nic_model'))
def test_lookup_unknown_distro_version_returns_old_distro(self):
distro = 'unknown_distro'
version = 'unknown_version'
entry = lookup(distro, version)
self.assertEqual(entry['disk_bus'],
get_template_default('old', 'disk_bus'))
self.assertEqual(entry['nic_model'],
get_template_default('old', 'nic_model'))
def test_old_distros(self):
old_versions = {'debian': '5.0', 'ubuntu': '7.04', 'opensuse': '10.1',
'centos': '5.1', 'rhel': '5.1', 'fedora': '15'}
for distro, version in old_versions.iteritems():
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('old', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('old', 'nic_model'))
def test_modern_distros(self):
# versions based on ppc64 modern distros
modern_versions = {'ubuntu': '14.04', 'opensuse': '13.1',
'rhel': '6.5', 'fedora': '19', 'sles': '11sp3'}
for distro, version in modern_versions.iteritems():
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('modern', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('modern', 'nic_model'))
def test_modern_bases(self):
if not os.uname()[4] == 's390x':
for distro, version in modern_version_bases[_get_arch()].items():
entry = lookup(distro, version)
self.assertEqual(
entry['disk_bus'], get_template_default(
'modern', 'disk_bus')
)
self.assertEqual(
entry['nic_model'], get_template_default(
'modern', 'nic_model')
)
def test_old_distros(self):
old_versions = {
'debian': '5.0',
'ubuntu': '7.04',
'opensuse': '10.1',
'centos': '5.1',
'rhel': '5.1',
'fedora': '15'
}
for distro, version in old_versions.iteritems():
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('old', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('old', 'nic_model'))
def test_modern_distros(self):
# versions based on ppc64 modern distros
modern_versions = {
'ubuntu': '14.04',
'opensuse': '13.1',
'rhel': '6.5',
'fedora': '19',
'sles': '11sp3'
}
for distro, version in modern_versions.iteritems():
entry = lookup(distro, version)
self.assertEquals(entry['disk_bus'],
get_template_default('modern', 'disk_bus'))
self.assertEquals(entry['nic_model'],
get_template_default('modern', 'nic_model'))
def __init__(self, args, scan=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom or a base img is present, the
operating system will be detected by probing the installation media.
"""
self.info = {}
self.fc_host_support = args.get('fc_host_support')
# Fetch defaults based on the os distro and version
try:
distro, version = self._get_os_info(args, scan)
except ImageFormatError as e:
raise OperationFailed('KCHTMPL0020E', {'err': e.message})
os_distro = args.get('os_distro', distro)
os_version = args.get('os_version', version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Auto-generate a template name if no one is passed
if 'name' not in args or args['name'] == '':
args['name'] = self._gen_name(distro, version)
self.name = args['name']
# Merge graphics settings
graph_args = args.get('graphics')
if graph_args:
graphics = dict(self.info['graphics'])
graphics.update(graph_args)
args['graphics'] = graphics
# Merge disks dict
default_disk = self.info['disks'][0]
for i, d in enumerate(args.get('disks', [])):
disk = dict(default_disk)
disk.update(d)
# Assign right disk format to logical and [i]scsi storagepools
if self._get_storage_type() in ['logical', 'iscsi', 'scsi']:
disk['format'] = 'raw'
args['disks'][i] = disk
# Override template values according to 'args'
self.info.update(args)
def __init__(self, args, scan=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom or a base img is present, the
operating system will be detected by probing the installation media.
"""
self.info = {}
self.fc_host_support = args.get('fc_host_support')
# Fetch defaults based on the os distro and version
try:
distro, version = self._get_os_info(args, scan)
except ImageFormatError as e:
raise OperationFailed('KCHTMPL0020E', {'err': e.message})
os_distro = args.get('os_distro', distro)
os_version = args.get('os_version', version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Auto-generate a template name if no one is passed
if 'name' not in args or args['name'] == '':
args['name'] = self._gen_name(distro, version)
self.name = args['name']
# Merge graphics settings
graph_args = args.get('graphics')
if graph_args:
graphics = dict(self.info['graphics'])
graphics.update(graph_args)
args['graphics'] = graphics
# Merge disks dict
default_disk = self.info['disks'][0]
for i, d in enumerate(args.get('disks', [])):
disk = dict(default_disk)
disk.update(d)
# Assign right disk format to logical and [i]scsi storagepools
if self._get_storage_type() in ['logical', 'iscsi', 'scsi']:
disk['format'] = 'raw'
args['disks'][i] = disk
# Override template values according to 'args'
self.info.update(args)
def get_iface_network_xml(params, arch=None, os_distro=None, os_version=None):
"""
<interface type='network' name='ethX'>
<start mode='onboot'/>
<source network='default'/>
<model type='virtio'/>
</interface>
"""
name = params.get('name', None)
if name:
interface = E.interface(type=params.get('type', 'network'), name=name)
else:
interface = E.interface(type=params.get('type', 'network'))
stmode = params.get('startmode', None)
if stmode:
interface.append(E.start(mode=stmode))
nw = params.get('network', None)
if nw:
interface.append(E.source(network=nw))
model = params.get('model', None)
# no model specified; let's try querying osinfo
if model is None:
# if os_distro and os_version are invalid, nic_model will also be None
model = osinfo.lookup(os_distro, os_version).get('nic_model')
# only append 'model' to the XML if it's been specified as a parameter or
# returned by osinfo.lookup; otherwise let libvirt use its default value
if model is not None:
interface.append(E.model(type=model))
mac = params.get('mac', None)
if mac is not None:
interface.append(E.mac(address=mac))
return ET.tostring(interface, encoding='utf-8',
pretty_print=True).decode('utf-8')
def get_iface_xml(params, arch=None, os_distro=None, os_version=None):
"""
<interface type='network' name='ethX'>
<start mode='onboot'/>
<source network='default'/>
<model type='virtio'/>
</interface>
"""
name = params.get('name', None)
if name:
interface = E.interface(type=params.get('type', 'network'), name=name)
else:
interface = E.interface(type=params.get('type', 'network'))
stmode = params.get('startmode', None)
if stmode:
interface.append(E.start(mode=stmode))
nw = params.get('network', None)
if nw:
interface.append(E.source(network=nw))
model = params.get('model', None)
# no model specified; let's try querying osinfo
if model is None:
# if os_distro and os_version are invalid, nic_model will also be None
model = osinfo.lookup(os_distro, os_version).get('nic_model')
# only append 'model' to the XML if it's been specified as a parameter or
# returned by osinfo.lookup; otherwise let libvirt use its default value
if model is not None:
interface.append(E.model(type=model))
mac = params.get('mac', None)
if mac is not None:
interface.append(E.mac(address=mac))
return ET.tostring(interface, encoding='utf-8', pretty_print=True)
def test_default_lookup(self):
entry = lookup(None, None)
self.assertEqual('unknown', entry['os_distro'])
self.assertEqual('unknown', entry['os_version'])
if not os.uname()[4] == 's390x':
self.assertEqual(['default'], entry['networks'])
def test_default_lookup(self):
entry = lookup(None, None)
self.assertEquals('unknown', entry['os_distro'])
self.assertEquals('unknown', entry['os_version'])
if not os.uname()[4] == "s390x":
self.assertEquals(['default'], entry['networks'])
def test_default_lookup(self):
entry = lookup(None, None)
self.assertEquals('unknown', entry['os_distro'])
self.assertEquals('unknown', entry['os_version'])
self.assertEquals(['default'], entry['networks'])
def __init__(self, args, scan=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom or a base img is present, the
operating system will be detected by probing the installation media.
"""
self.info = {}
self.fc_host_support = args.get('fc_host_support')
# Fetch defaults based on the os distro and version
try:
distro, version = self._get_os_info(args, scan)
except ImageFormatError as e:
raise OperationFailed('KCHTMPL0020E', {'err': e.message})
os_distro = args.get('os_distro', distro)
os_version = args.get('os_version', version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Auto-generate a template name if no one is passed
if 'name' not in args or args['name'] == '':
args['name'] = self._gen_name(distro, version)
self.name = args['name']
# Merge graphics settings
graph_args = args.get('graphics')
if graph_args:
graphics = dict(self.info['graphics'])
graphics.update(graph_args)
args['graphics'] = graphics
default_disk = self.info['disks'][0]
# Complete memory args, because dict method update is not recursive
if 'memory' in args:
if 'current' not in args['memory']:
args['memory']['current'] = self.info['memory']['current']
if 'maxmemory' not in args['memory']:
args['memory']['maxmemory'] = self.info['memory']['maxmemory']
# Override template values according to 'args'
self.info.update(args)
disks = self.info.get('disks')
basic_disk = ['index', 'format', 'pool', 'size']
ro_disk = ['index', 'format', 'pool', 'volume']
base_disk = ['index', 'base', 'pool', 'size', 'format']
for index, disk in enumerate(disks):
disk_info = dict(default_disk)
pool = disk.get('pool', default_disk['pool'])
pool_type = self._get_storage_type(pool['name'])
if pool_type in ['iscsi', 'scsi']:
disk_info = {'index': 0, 'format': 'raw', 'volume': None}
disk_info.update(disk)
pool_name = disk_info.get('pool', {}).get('name')
if pool_name is None:
raise MissingParameter('KCHTMPL0028E')
keys = sorted(disk_info.keys())
if ((keys != sorted(basic_disk)) and (keys != sorted(ro_disk))
and (keys != sorted(base_disk))):
raise MissingParameter('KCHTMPL0028E')
if pool_type in ['logical', 'iscsi', 'scsi']:
if disk_info['format'] != 'raw':
raise InvalidParameter('KCHTMPL0029E')
disk_info['pool']['type'] = pool_type
disk_info['index'] = disk_info.get('index', index)
self.info['disks'][index] = disk_info
def __init__(self, args, scan=False, netboot=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom or a base img is present, the
operating system will be detected by probing the installation media.
If netboot is True, no cdrom or base img will be used to boot the VM.
"""
self.info = {}
self.fc_host_support = args.get('fc_host_support')
# Fetch defaults based on the os distro and version
if netboot:
distro = version = 'unknown'
else:
try:
distro, version = self._get_os_info(args, scan)
except ImageFormatError as e:
raise OperationFailed('KCHTMPL0020E', {'err': e.message})
os_distro = args.get('os_distro', distro)
os_version = args.get('os_version', version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Auto-generate a template name if no one is passed
if 'name' not in args or args['name'] == '':
args['name'] = self._gen_name(distro, version)
self.name = args['name']
# Merge graphics settings
graph_args = args.get('graphics')
if graph_args:
graphics = dict(self.info['graphics'])
graphics.update(graph_args)
args['graphics'] = graphics
default_disk = self.info['disks'][0]
# Complete memory args, because dict method update is not recursive
if 'memory' in args:
if 'current' not in args['memory']:
args['memory']['current'] = self.info['memory']['current']
if 'maxmemory' not in args['memory']:
args['memory']['maxmemory'] = self.info['memory']['maxmemory']
# Override template values according to 'args'
self.info.update(args)
disks = self.info.get('disks')
basic_disk = ['index', 'format', 'pool', 'size']
ro_disk = ['index', 'format', 'pool', 'volume']
base_disk = ['index', 'base', 'pool', 'size', 'format']
for index, disk in enumerate(disks):
disk_info = dict(default_disk)
pool = disk.get('pool', default_disk['pool'])
pool_type = self._get_storage_type(pool['name'])
if pool_type in ['iscsi', 'scsi']:
disk_info = {'index': 0, 'format': 'raw', 'volume': None}
disk_info.update(disk)
pool_name = disk_info.get('pool', {}).get('name')
if pool_name is None:
raise MissingParameter('KCHTMPL0028E')
keys = sorted(disk_info.keys())
if ((keys != sorted(basic_disk)) and (keys != sorted(ro_disk)) and
(keys != sorted(base_disk))):
raise MissingParameter('KCHTMPL0028E')
if pool_type in ['logical', 'iscsi', 'scsi']:
if disk_info['format'] != 'raw':
raise InvalidParameter('KCHTMPL0029E')
disk_info['pool']['type'] = pool_type
disk_info['index'] = disk_info.get('index', index)
self.info['disks'][index] = disk_info
def _get_device_bus(dev_type, dom):
try:
version, distro = VMModel.vm_get_os_metadata(dom)
except:
version, distro = ('unknown', 'unknown')
return lookup(distro, version)[dev_type+'_bus']
def __init__(self, args, scan=False, netboot=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom or a base img is present, the
operating system will be detected by probing the installation media.
If netboot is True, no cdrom or base img will be used to boot the VM.
"""
self.info = {}
self.fc_host_support = args.get('fc_host_support')
# Fetch defaults based on the os distro and version
if netboot:
distro = version = 'unknown'
else:
try:
distro, version = self._get_os_info(args, scan)
except ImageFormatError as e:
raise OperationFailed('KCHTMPL0020E', {'err': e.message})
os_distro = args.get('os_distro', distro)
os_version = args.get('os_version', version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Auto-generate a template name if no one is passed
if 'name' not in args or args['name'] == '':
args['name'] = self._gen_name(distro, version)
self.name = args['name']
# Merge graphics settings
graph_args = args.get('graphics')
if graph_args:
graphics = dict(self.info['graphics'])
graphics.update(graph_args)
args['graphics'] = graphics
default_disk = self.info['disks'][0]
# Complete memory args, because dict method update is not recursive
if 'memory' in args:
if 'current' not in args['memory']:
args['memory']['current'] = self.info['memory']['current']
if 'maxmemory' not in args['memory']:
args['memory']['maxmemory'] = self.info['memory']['maxmemory']
# Override template values according to 'args'
self.info.update(args)
disks = self.info.get('disks')
basic_disk = ['index', 'format', 'pool', 'size']
basic_path_disk = ['index', 'format', 'path', 'size']
ro_disk = ['index', 'format', 'pool', 'volume']
base_disk = ['index', 'base', 'pool', 'size', 'format']
base_path_disk = ['index', 'base', 'path', 'size', 'format']
for index, disk in enumerate(disks):
disk_info = dict(default_disk)
if is_s390x():
# Default disk should have either pool or path.
if 'pool' not in default_disk and 'path' not in default_disk:
raise InvalidParameter('KCHTMPL0040E')
# Each disk should have either pool or path.
# if not then use "default_disk" configuration.
pool = disk.get('pool')
path = disk.get('path')
if not path and not pool:
# If default disk is path then set disk with default path
if default_disk.get('path'):
path = default_disk.get('path')
# If default disk is pool then set disk with default pool
elif default_disk.get('pool'):
pool = default_disk.get('pool')
else:
pool = disk.get('pool', default_disk.get('pool'))
if pool:
pool_type = self._get_storage_type(pool['name'])
if pool_type in ['iscsi', 'scsi']:
disk_info = {'index': 0, 'format': 'raw', 'volume': None}
# This check is required where 'pool' disk
# has to be added and hence default path
# has to be removed during template update.
if 'path' in disk_info:
del disk_info['path']
disk_info.update(disk)
pool_name = disk_info.get('pool', {}).get('name')
if pool_name is None:
raise MissingParameter('KCHTMPL0028E')
keys = sorted(disk_info.keys())
if ((keys != sorted(basic_disk)) and (keys != sorted(ro_disk))
and (keys != sorted(base_disk))):
# Addition check required only on s390x
if not is_s390x() or (keys != sorted(basic_path_disk)):
raise MissingParameter('KCHTMPL0028E')
if pool_type in ['logical', 'iscsi', 'scsi']:
if disk_info['format'] != 'raw':
raise InvalidParameter('KCHTMPL0029E')
disk_info['pool']['type'] = pool_type
disk_info['index'] = disk_info.get('index', index)
self.info['disks'][index] = disk_info
elif is_s390x():
# This check is required where 'path' disk
# has to be added and hence default pool
# has to be removed during template update.
if 'pool' in disk_info:
del disk_info['pool']
disk_info.update(disk)
keys = sorted(disk_info.keys())
if ((keys != sorted(basic_path_disk))
and (keys != sorted(base_path_disk))):
raise MissingParameter('KCHTMPL0042E')
disk_info['path'] = path
disk_info['index'] = disk_info.get('index', index)
self.info['disks'][index] = disk_info
def __init__(self, args, scan=False, netboot=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom or a base img is present, the
operating system will be detected by probing the installation media.
If netboot is True, no cdrom or base img will be used to boot the VM.
"""
self.info = {}
self.fc_host_support = args.get("fc_host_support")
# Fetch defaults based on the os distro and version
if netboot:
distro = version = "unknown"
else:
try:
distro, version = self._get_os_info(args, scan)
except ImageFormatError as e:
raise OperationFailed("KCHTMPL0020E", {"err": e.message})
os_distro = args.get("os_distro", distro)
os_version = args.get("os_version", version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Auto-generate a template name if no one is passed
if "name" not in args or args["name"] == "":
args["name"] = self._gen_name(distro, version)
self.name = args["name"]
# Merge graphics settings
graph_args = args.get("graphics")
if graph_args:
graphics = dict(self.info["graphics"])
graphics.update(graph_args)
args["graphics"] = graphics
default_disk = self.info["disks"][0]
# Complete memory args, because dict method update is not recursive
if "memory" in args:
if "current" not in args["memory"]:
args["memory"]["current"] = self.info["memory"]["current"]
if "maxmemory" not in args["memory"]:
args["memory"]["maxmemory"] = self.info["memory"]["maxmemory"]
# Override template values according to 'args'
self.info.update(args)
disks = self.info.get("disks")
basic_disk = ["index", "format", "pool", "size"]
basic_path_disk = ["index", "format", "path", "size"]
ro_disk = ["index", "format", "pool", "volume"]
base_disk = ["index", "base", "pool", "size", "format"]
base_path_disk = ["index", "base", "path", "size", "format"]
for index, disk in enumerate(disks):
disk_info = dict(default_disk)
if is_s390x():
# Default disk should have either pool or path.
if "pool" not in default_disk and "path" not in default_disk:
raise InvalidParameter("KCHTMPL0040E")
# Each disk should have either pool or path.
# if not then use "default_disk" configuration.
pool = disk.get("pool")
path = disk.get("path")
if not path and not pool:
# If default disk is path then set disk with default path
if default_disk.get("path"):
path = default_disk.get("path")
# If default disk is pool then set disk with default pool
elif default_disk.get("pool"):
pool = default_disk.get("pool")
else:
pool = disk.get("pool", default_disk.get("pool"))
if pool:
pool_type = self._get_storage_type(pool["name"])
if pool_type in ["iscsi", "scsi"]:
disk_info = {"index": 0, "format": "raw", "volume": None}
# This check is required where 'pool' disk
# has to be added and hence default path
# has to be removed during template update.
if "path" in disk_info:
del disk_info["path"]
disk_info.update(disk)
pool_name = disk_info.get("pool", {}).get("name")
if pool_name is None:
raise MissingParameter("KCHTMPL0028E")
keys = sorted(disk_info.keys())
if (keys != sorted(basic_disk)) and (keys != sorted(ro_disk)) and (keys != sorted(base_disk)):
# Addition check required only on s390x
if not is_s390x() or (keys != sorted(basic_path_disk)):
raise MissingParameter("KCHTMPL0028E")
if pool_type in ["logical", "iscsi", "scsi"]:
if disk_info["format"] != "raw":
raise InvalidParameter("KCHTMPL0029E")
disk_info["pool"]["type"] = pool_type
disk_info["index"] = disk_info.get("index", index)
self.info["disks"][index] = disk_info
elif is_s390x():
# This check is required where 'path' disk
# has to be added and hence default pool
# has to be removed during template update.
if "pool" in disk_info:
del disk_info["pool"]
disk_info.update(disk)
keys = sorted(disk_info.keys())
if (keys != sorted(basic_path_disk)) and (keys != sorted(base_path_disk)):
raise MissingParameter("KCHTMPL0042E")
disk_info["path"] = path
disk_info["index"] = disk_info.get("index", index)
self.info["disks"][index] = disk_info
def _get_device_bus(dev_type, dom):
try:
version, distro = VMModel.vm_get_os_metadata(dom)
except:
version, distro = ('unknown', 'unknown')
return lookup(distro, version)[dev_type+'_bus']
def test_default_lookup(self):
entry = lookup(None, None)
self.assertEquals('unknown', entry['os_distro'])
self.assertEquals('unknown', entry['os_version'])
self.assertEquals(['default'], entry['networks'])