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 get_arch(image_meta):
"""Determine the architecture of the guest (or host).
This method determines the CPU architecture that must be supported by
the hypervisor. It gets the (guest) arch info from image_meta properties,
and it will fallback to the patron-compute (host) arch if no architecture
info is provided in image_meta.
:param image_meta: the metadata associated with the instance image
:returns: guest (or host) architecture
"""
if image_meta:
image_arch = image_meta.get('properties', {}).get('architecture')
if image_arch is not None:
return arch.canonicalize(image_arch)
return arch.from_host()
def get_arch(image_meta):
"""Determine the architecture of the guest (or host).
This method determines the CPU architecture that must be supported by
the hypervisor. It gets the (guest) arch info from image_meta properties,
and it will fallback to the patron-compute (host) arch if no architecture
info is provided in image_meta.
:param image_meta: the metadata associated with the instance image
:returns: guest (or host) architecture
"""
if image_meta:
image_arch = image_meta.get('properties', {}).get('architecture')
if image_arch is not None:
return arch.canonicalize(image_arch)
return arch.from_host()
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 _node_resource(self, node):
"""Helper method to create resource dict from node stats."""
vcpus = int(node.properties.get('cpus', 0))
memory_mb = int(node.properties.get('memory_mb', 0))
local_gb = int(node.properties.get('local_gb', 0))
raw_cpu_arch = node.properties.get('cpu_arch', None)
try:
cpu_arch = arch.canonicalize(raw_cpu_arch)
except exception.InvalidArchitectureName:
cpu_arch = None
if not cpu_arch:
LOG.warning(_LW("cpu_arch not defined for node '%s'"), node.uuid)
nodes_extra_specs = {}
# NOTE(deva): In Havana and Icehouse, the flavor was required to link
# to an arch-specific deploy kernel and ramdisk pair, and so the flavor
# also had to have extra_specs['cpu_arch'], which was matched against
# the ironic node.properties['cpu_arch'].
# With Juno, the deploy image(s) may be referenced directly by the
# node.driver_info, and a flavor no longer needs to contain any of
# these three extra specs, though the cpu_arch may still be used
# in a heterogeneous environment, if so desired.
# NOTE(dprince): we use the raw cpu_arch here because extra_specs
# filters aren't canonicalized
nodes_extra_specs['cpu_arch'] = raw_cpu_arch
# NOTE(gilliard): To assist with more precise scheduling, if the
# node.properties contains a key 'capabilities', we expect the value
# to be of the form "k1:v1,k2:v2,etc.." which we add directly as
# key/value pairs into the node_extra_specs to be used by the
# ComputeCapabilitiesFilter
capabilities = node.properties.get('capabilities')
if capabilities:
for capability in str(capabilities).split(','):
parts = capability.split(':')
if len(parts) == 2 and parts[0] and parts[1]:
nodes_extra_specs[parts[0]] = parts[1]
else:
LOG.warning(
_LW("Ignoring malformed capability '%s'. "
"Format should be 'key:val'."), capability)
vcpus_used = 0
memory_mb_used = 0
local_gb_used = 0
if self._node_resources_used(node):
# Node is in the process of deploying, is deployed, or is in
# the process of cleaning up from a deploy. Report all of its
# resources as in use.
vcpus_used = vcpus
memory_mb_used = memory_mb
local_gb_used = local_gb
elif self._node_resources_unavailable(node):
# The node's current state is such that it should not present any
# of its resources to Nova
vcpus = 0
memory_mb = 0
local_gb = 0
dic = {
'hypervisor_hostname':
str(node.uuid),
'hypervisor_type':
self._get_hypervisor_type(),
'hypervisor_version':
self._get_hypervisor_version(),
# The Ironic driver manages multiple hosts, so there are
# likely many different CPU models in use. As such it is
# impossible to provide any meaningful info on the CPU
# model of the "host"
'cpu_info':
None,
'vcpus':
vcpus,
'vcpus_used':
vcpus_used,
'local_gb':
local_gb,
'local_gb_used':
local_gb_used,
'disk_available_least':
local_gb - local_gb_used,
'memory_mb':
memory_mb,
'memory_mb_used':
memory_mb_used,
'supported_instances':
jsonutils.dumps(_get_nodes_supported_instances(cpu_arch)),
'stats':
jsonutils.dumps(nodes_extra_specs),
}
return dic
def test_canonicalize_case(self):
self.assertEqual(arch.X86_64, arch.canonicalize("X86_64"))
def test_canonicalize_compat_xen2(self):
self.assertEqual(arch.I686, arch.canonicalize("x86_32p"))
def test_canonicalize_i386(self):
self.assertEqual(arch.I686, arch.canonicalize("i386"))
def test_canonicalize_amd64(self):
self.assertEqual(arch.X86_64, arch.canonicalize("amd64"))
def test_canonicalize_compat_xen2(self):
self.assertEqual(arch.I686, arch.canonicalize("x86_32p"))
def test_canonicalize_case(self):
self.assertEqual(arch.X86_64, arch.canonicalize("X86_64"))
def test_canonicalize_amd64(self):
self.assertEqual(arch.X86_64, arch.canonicalize("amd64"))
def test_canonicalize_i386(self):
self.assertEqual(arch.I686, arch.canonicalize("i386"))
def _node_resource(self, node):
"""Helper method to create resource dict from node stats."""
vcpus = int(node.properties.get('cpus', 0))
memory_mb = int(node.properties.get('memory_mb', 0))
local_gb = int(node.properties.get('local_gb', 0))
raw_cpu_arch = node.properties.get('cpu_arch', None)
try:
cpu_arch = arch.canonicalize(raw_cpu_arch)
except exception.InvalidArchitectureName:
cpu_arch = None
if not cpu_arch:
LOG.warning(_LW("cpu_arch not defined for node '%s'"), node.uuid)
nodes_extra_specs = {}
# NOTE(deva): In Havana and Icehouse, the flavor was required to link
# to an arch-specific deploy kernel and ramdisk pair, and so the flavor
# also had to have extra_specs['cpu_arch'], which was matched against
# the ironic node.properties['cpu_arch'].
# With Juno, the deploy image(s) may be referenced directly by the
# node.driver_info, and a flavor no longer needs to contain any of
# these three extra specs, though the cpu_arch may still be used
# in a heterogeneous environment, if so desired.
# NOTE(dprince): we use the raw cpu_arch here because extra_specs
# filters aren't canonicalized
nodes_extra_specs['cpu_arch'] = raw_cpu_arch
# NOTE(gilliard): To assist with more precise scheduling, if the
# node.properties contains a key 'capabilities', we expect the value
# to be of the form "k1:v1,k2:v2,etc.." which we add directly as
# key/value pairs into the node_extra_specs to be used by the
# ComputeCapabilitiesFilter
capabilities = node.properties.get('capabilities')
if capabilities:
for capability in str(capabilities).split(','):
parts = capability.split(':')
if len(parts) == 2 and parts[0] and parts[1]:
nodes_extra_specs[parts[0]] = parts[1]
else:
LOG.warning(_LW("Ignoring malformed capability '%s'. "
"Format should be 'key:val'."), capability)
vcpus_used = 0
memory_mb_used = 0
local_gb_used = 0
if self._node_resources_used(node):
# Node is in the process of deploying, is deployed, or is in
# the process of cleaning up from a deploy. Report all of its
# resources as in use.
vcpus_used = vcpus
memory_mb_used = memory_mb
local_gb_used = local_gb
elif self._node_resources_unavailable(node):
# The node's current state is such that it should not present any
# of its resources to Nova
vcpus = 0
memory_mb = 0
local_gb = 0
dic = {
'hypervisor_hostname': str(node.uuid),
'hypervisor_type': self._get_hypervisor_type(),
'hypervisor_version': self._get_hypervisor_version(),
# The Ironic driver manages multiple hosts, so there are
# likely many different CPU models in use. As such it is
# impossible to provide any meaningful info on the CPU
# model of the "host"
'cpu_info': None,
'vcpus': vcpus,
'vcpus_used': vcpus_used,
'local_gb': local_gb,
'local_gb_used': local_gb_used,
'disk_available_least': local_gb - local_gb_used,
'memory_mb': memory_mb,
'memory_mb_used': memory_mb_used,
'supported_instances': jsonutils.dumps(
_get_nodes_supported_instances(cpu_arch)),
'stats': jsonutils.dumps(nodes_extra_specs),
}
return dic
