def _instance_supported(self, host_state, image_props,
hypervisor_version):
img_arch = image_props.get('architecture', None)
img_h_type = image_props.get('hypervisor_type', None)
img_vm_mode = image_props.get('vm_mode', None)
checked_img_props = (
arch.canonicalize(img_arch),
hv_type.canonicalize(img_h_type),
vm_mode.canonicalize(img_vm_mode)
)
# Supported if no compute-related instance properties are specified
if not any(checked_img_props):
return True
supp_instances = host_state.supported_instances
# Not supported if an instance property is requested but nothing
# advertised by the host.
if not supp_instances:
LOG.debug("Instance contains properties %(image_props)s, "
"but no corresponding supported_instances are "
"advertised by the compute node",
{'image_props': image_props})
return False
def _compare_props(props, other_props):
for i in props:
if i and i not in other_props:
return False
return True
def _compare_product_version(hyper_version, image_props):
version_required = image_props.get('hypervisor_version_requires')
if not(hypervisor_version and version_required):
return True
img_prop_predicate = versionpredicate.VersionPredicate(
'image_prop (%s)' % version_required)
hyper_ver_str = utils.convert_version_to_str(hyper_version)
return img_prop_predicate.satisfied_by(hyper_ver_str)
for supp_inst in supp_instances:
if _compare_props(checked_img_props, supp_inst):
if _compare_product_version(hypervisor_version, image_props):
return True
LOG.debug("Instance contains properties %(image_props)s "
"that are not provided by the compute node "
"supported_instances %(supp_instances)s or "
"hypervisor version %(hypervisor_version)s do not match",
{'image_props': image_props,
'supp_instances': supp_instances,
'hypervisor_version': hypervisor_version})
return False
def _instance_supported(self, host_state, image_props, hypervisor_version):
img_arch = image_props.get('architecture', None)
img_h_type = image_props.get('hypervisor_type', None)
img_vm_mode = image_props.get('vm_mode', None)
checked_img_props = (arch.canonicalize(img_arch),
hv_type.canonicalize(img_h_type),
vm_mode.canonicalize(img_vm_mode))
# Supported if no compute-related instance properties are specified
if not any(checked_img_props):
return True
supp_instances = host_state.supported_instances
# Not supported if an instance property is requested but nothing
# advertised by the host.
if not supp_instances:
LOG.debug(
"Instance contains properties %(image_props)s, "
"but no corresponding supported_instances are "
"advertised by the compute node", {'image_props': image_props})
return False
def _compare_props(props, other_props):
for i in props:
if i and i not in other_props:
return False
return True
def _compare_product_version(hyper_version, image_props):
version_required = image_props.get('hypervisor_version_requires')
if not (hypervisor_version and version_required):
return True
img_prop_predicate = versionpredicate.VersionPredicate(
'image_prop (%s)' % version_required)
hyper_ver_str = utils.convert_version_to_str(hyper_version)
return img_prop_predicate.satisfied_by(hyper_ver_str)
for supp_inst in supp_instances:
if _compare_props(checked_img_props, supp_inst):
if _compare_product_version(hypervisor_version, image_props):
return True
LOG.debug(
"Instance contains properties %(image_props)s "
"that are not provided by the compute node "
"supported_instances %(supp_instances)s or "
"hypervisor version %(hypervisor_version)s do not match", {
'image_props': image_props,
'supp_instances': supp_instances,
'hypervisor_version': hypervisor_version
})
return False
def to_supported_instances(host_capabilities):
if not host_capabilities:
return []
result = []
for capability in host_capabilities:
try:
# 'capability'is unicode but we want arch/ostype
# to be strings to match the standard constants
capability = str(capability)
ostype, _version, guestarch = capability.split("-")
guestarch = arch.canonicalize(guestarch)
ostype = vm_mode.canonicalize(ostype)
result.append((guestarch, hv_type.XEN, ostype))
except ValueError:
LOG.warning(_LW("Failed to extract instance support from %s"),
capability)
return result
def to_supported_instances(host_capabilities):
if not host_capabilities:
return []
result = []
for capability in host_capabilities:
try:
# 'capability'is unicode but we want arch/ostype
# to be strings to match the standard constants
capability = str(capability)
ostype, _version, guestarch = capability.split("-")
guestarch = arch.canonicalize(guestarch)
ostype = vm_mode.canonicalize(ostype)
result.append((guestarch, hv_type.XEN, ostype))
except ValueError:
LOG.warning(_LW("Failed to extract instance support from %s"),
capability)
return result
def test_name_none(self):
mode = vm_mode.canonicalize(None)
self.assertIsNone(mode)
def test_name_hvm(self):
mode = vm_mode.canonicalize('hvm')
self.assertEqual(vm_mode.HVM, mode)
def test_name_baremetal_compat(self):
mode = vm_mode.canonicalize('baremetal')
self.assertEqual(vm_mode.HVM, mode)
def test_name_pv_compat(self):
mode = vm_mode.canonicalize('pv')
self.assertEqual(vm_mode.XEN, mode)
