def verify_image_name(name, checksum, expected):
img_meta = image_meta.ImageMeta(name=name, checksum=checksum)
self.assertEqual(expected, ssp._get_image_name(img_meta))
self.assertTrue(len(expected) <= const.MaxLen.FILENAME_DEFAULT)
def _validate_numa_node(flavor):
NUMA_NODES_KEY = 'hw:numa_nodes'
NUMA_NODE_PREFIX = 'hw:numa_node.'
specs = flavor.extra_specs
try:
hw_numa_nodes = int(specs.get(NUMA_NODES_KEY, 1))
except ValueError:
msg = _('hw:numa_nodes value must be an integer')
raise webob.exc.HTTPBadRequest(explanation=msg)
if hw_numa_nodes < 1:
msg = _('hw:numa_nodes value must be greater than 0')
raise webob.exc.HTTPBadRequest(explanation=msg)
for key in specs:
if key.startswith(NUMA_NODE_PREFIX):
# NUMA pinning not allowed when CPU policy is shared
if (specs.get(CPU_POLICY_KEY) ==
fields.CPUAllocationPolicy.SHARED):
msg = _('hw:numa_node not permitted when cpu policy '
'is set to shared')
raise webob.exc.HTTPConflict(explanation=msg)
suffix = key.split(NUMA_NODE_PREFIX, 1)[1]
try:
vnode = int(suffix)
except ValueError:
msg = _('virtual numa node number must be an integer')
raise webob.exc.HTTPBadRequest(explanation=msg)
if vnode < 0:
msg = _('virtual numa node number must be greater than or '
'equal to 0')
raise webob.exc.HTTPBadRequest(explanation=msg)
try:
pnode = int(specs[key])
except ValueError:
msg = _('%s must be an integer') % key
raise webob.exc.HTTPBadRequest(explanation=msg)
if pnode < 0:
msg = _('%s must be greater than or equal to 0') % key
raise webob.exc.HTTPBadRequest(explanation=msg)
if pnode >= MAX_HOST_NUMA_NODES:
msg = (_('%(K)s value %(P)d is not valid. It must '
'be an integer from 0 to %(N)d') %
{'K': key,
'P': pnode,
'N': MAX_HOST_NUMA_NODES - 1
})
raise webob.exc.HTTPBadRequest(explanation=msg)
if vnode >= hw_numa_nodes:
msg = _('all hw:numa_node keys must use vnode id less than'
' the specified hw:numa_nodes value (%s)') \
% hw_numa_nodes
raise webob.exc.HTTPBadRequest(explanation=msg)
# CPU scaling doesn't currently support multiple guest NUMA nodes
if hw_numa_nodes > 1 and CPU_SCALING_KEY in specs:
msg = _('CPU scaling not supported for instances with'
' multiple NUMA nodes.')
raise webob.exc.HTTPConflict(explanation=msg)
# CGTS-3716 Asymmetric NUMA topology protection
# Do common error check from numa_get_constraints with a clearer error
if hw_numa_nodes > 0 and specs.get('hw:numa_cpus.0') is None:
if (flavor.vcpus % hw_numa_nodes) > 0:
msg = _('flavor vcpus not evenly divisible by'
' the specified hw:numa_nodes value (%s)') \
% hw_numa_nodes
raise webob.exc.HTTPConflict(explanation=msg)
if (flavor.memory_mb % hw_numa_nodes) > 0:
msg = _('flavor memory not evenly divisible by'
' the specified hw:numa_nodes value (%s) so'
' per NUMA-node values must be explicitly specified') \
% hw_numa_nodes
raise webob.exc.HTTPConflict(explanation=msg)
# Catchall test
try:
# Check if this modified flavor would be valid assuming
# no image metadata.
hardware.numa_get_constraints(flavor, image_meta.ImageMeta(
properties=image_meta.ImageMetaProps()))
except Exception as error:
msg = _('%s') % error.message
raise webob.exc.HTTPConflict(explanation=msg)