def get_ovf_os_type(ovf_file):
oss = ovf_file.document.getElementsByTagName("OperatingSystemSection")
if len(oss) == 0:
return 'redhat' # default supported linux
os_section = oss[0]
for e in Ovf.getDict(os_section)['children']:
if e['name'] == u'Description':
return e['text']
return 'unknown'
def get_ovf_os_type(ovf_file):
oss = ovf_file.document.getElementsByTagName("OperatingSystemSection")
if len(oss) == 0:
return 'redhat' # default supported linux
os_section = oss[0]
for e in Ovf.getDict(os_section)['children']:
if e['name'] == u'Description':
return e['text']
return 'unknown'
def _get_ovf_vcpu(ovf_file, bound):
"""
Retrieves the number of virtual CPUs to be allocated for the virtual
machine from the Ovf file.
"""
vcpu = ''
virtual_hardware_node = ovf_file.document.getElementsByTagName("VirtualHardwareSection")[0]
rasd = Ovf.getDict(virtual_hardware_node)['children']
for resource in rasd:
if ('rasd:ResourceType' in resource and
resource['rasd:ResourceType'] == '3'):
_bound = resource.get('ovf:bound', 'normal')
if _bound == bound:
vcpu = resource['rasd:VirtualQuantity']
break
return vcpu
def _get_ovf_vcpu(ovf_file, bound):
"""
Retrieves the number of virtual CPUs to be allocated for the virtual
machine from the Ovf file.
"""
vcpu = ''
virtual_hardware_node = ovf_file.document.getElementsByTagName(
"VirtualHardwareSection")[0]
rasd = Ovf.getDict(virtual_hardware_node)['children']
for resource in rasd:
if ('rasd:ResourceType' in resource
and resource['rasd:ResourceType'] == '3'):
_bound = resource.get('ovf:bound', 'normal')
if _bound == bound:
vcpu = resource['rasd:VirtualQuantity']
break
return vcpu
def _get_ovf_memory_gb(ovf_file, bound):
"""
Retrieves the amount of memory (GB) to be allocated for the
virtual machine from the Ovf file.
@note: Implementation adopted from module ovf.Ovf
@note: DSP0004 v2.5.0 outlines the Programmatic Unit forms for
OVF. This pertains specifically to rasd:AllocationUnits, which accepts
both the current and deprecated forms. New implementations should not
use Unit Qualifiers as this form is deprecated.
- PUnit form, as in "byte * 2^20"
- PUnit form w/ Units Qualifier(deprecated), as in "MegaBytes"
@param ovf_file: Ovf template configuration file
@type ovf_file: OvfFile
@param bound: memory resource bound: min, max, normal
@type bound: String
@return: memory in GB or empty string if no information for the given bound is provided.
@rtype: String
"""
memory = ''
virtual_hardware_node = ovf_file.document.getElementsByTagName("VirtualHardwareSection")[0]
rasd = Ovf.getDict(virtual_hardware_node)['children']
for resource in rasd:
if(resource.has_key('rasd:ResourceType') and
resource['rasd:ResourceType'] == '4'):
memoryQuantity = resource['rasd:VirtualQuantity']
memoryUnits = resource['rasd:AllocationUnits']
_bound = resource.get('ovf:bound', 'normal')
if _bound == bound:
if (memoryUnits.startswith('byte') or
memoryUnits.startswith('bit')):
# Calculate PUnit numerical factor
memoryUnits = memoryUnits.replace('^', '**')
# Determine PUnit Quantifier DMTF DSP0004, {byte, bit}
# Convert to kilobytes
memoryUnits = memoryUnits.split(' ', 1)
quantifier = memoryUnits[0]
if quantifier not in ['bit', 'byte']:
raise ValueError("Incompatible PUnit quantifier for memory.")
else:
memoryUnits[0] = '2**-10' if quantifier is 'byte' else '2**-13'
memoryUnits = ' '.join(memoryUnits)
memoryFactor = int(eval(memoryUnits, {}, {}))
else:
if memoryUnits.startswith('Kilo'):
memoryFactor = 1024 ** 0
elif memoryUnits.startswith('Mega'):
memoryFactor = 1024 ** 1
elif memoryUnits.startswith('Giga'):
memoryFactor = 1024 ** 2
else:
raise ValueError("Incompatible PUnit quantifier for memory.")
if memoryUnits.endswith('Bytes'):
memoryFactor *= 1
elif memoryUnits.endswith('Bits'):
memoryFactor /= 8.0
else:
raise ValueError("Incompatible PUnit quantifier for memory.")
memory = str(float(memoryQuantity) * memoryFactor / 1024 ** 2)
break
return memory
def _get_ovf_memory_gb(ovf_file, bound):
"""
Retrieves the amount of memory (GB) to be allocated for the
virtual machine from the Ovf file.
@note: Implementation adopted from module ovf.Ovf
@note: DSP0004 v2.5.0 outlines the Programmatic Unit forms for
OVF. This pertains specifically to rasd:AllocationUnits, which accepts
both the current and deprecated forms. New implementations should not
use Unit Qualifiers as this form is deprecated.
- PUnit form, as in "byte * 2^20"
- PUnit form w/ Units Qualifier(deprecated), as in "MegaBytes"
@param ovf_file: Ovf template configuration file
@type ovf_file: OvfFile
@param bound: memory resource bound: min, max, normal
@type bound: String
@return: memory in GB or empty string if no information for the given bound is provided.
@rtype: String
"""
memory = ''
virtual_hardware_node = ovf_file.document.getElementsByTagName(
"VirtualHardwareSection")[0]
rasd = Ovf.getDict(virtual_hardware_node)['children']
for resource in rasd:
if (resource.has_key('rasd:ResourceType')
and resource['rasd:ResourceType'] == '4'):
memoryQuantity = resource['rasd:VirtualQuantity']
memoryUnits = resource['rasd:AllocationUnits']
_bound = resource.get('ovf:bound', 'normal')
if _bound == bound:
if (memoryUnits.startswith('byte')
or memoryUnits.startswith('bit')):
# Calculate PUnit numerical factor
memoryUnits = memoryUnits.replace('^', '**')
# Determine PUnit Quantifier DMTF DSP0004, {byte, bit}
# Convert to kilobytes
memoryUnits = memoryUnits.split(' ', 1)
quantifier = memoryUnits[0]
if quantifier not in ['bit', 'byte']:
raise ValueError(
"Incompatible PUnit quantifier for memory.")
else:
memoryUnits[
0] = '2**-10' if quantifier is 'byte' else '2**-13'
memoryUnits = ' '.join(memoryUnits)
memoryFactor = int(eval(memoryUnits, {}, {}))
else:
if memoryUnits.startswith('Kilo'):
memoryFactor = 1024**0
elif memoryUnits.startswith('Mega'):
memoryFactor = 1024**1
elif memoryUnits.startswith('Giga'):
memoryFactor = 1024**2
else:
raise ValueError(
"Incompatible PUnit quantifier for memory.")
if memoryUnits.endswith('Bytes'):
memoryFactor *= 1
elif memoryUnits.endswith('Bits'):
memoryFactor /= 8.0
else:
raise ValueError(
"Incompatible PUnit quantifier for memory.")
memory = str(float(memoryQuantity) * memoryFactor / 1024**2)
break
return memory
