def extract_paths_dead(self, paths, ignore_nopath):
"""
Extract the given paths from the domain using guestfs.
Using guestfs can have side-effects and should be used as a second
option, mainly when SSH is not available.
Args:
paths(list of str): paths to extract
ignore_nopath(boolean): if True will ignore none existing paths.
Returns:
None
Raises:
:exc:`~lago.utils.LagoException`: if :mod:`guestfs` is not
importable.
:exc:`~lago.plugins.vm.ExtractPathNoPathError`: if a none existing
path was found on the VM, and `ignore_nopath` is True.
:exc:`~lago.plugins.vm.ExtractPathError`: on failure extracting
the files.
"""
if not self._has_guestfs:
raise LagoException(('guestfs module not available, cannot '
)('extract files with libguestfs'))
LOGGER.debug('%s: attempting to extract files with libguestfs',
self.vm.name())
guestfs_tools.extract_paths(
disk_path=self.vm.spec['disks'][0]['path'],
disk_root=self.vm.spec['disks'][0]['metadata'].get(
'root-partition', 'root'),
paths=paths,
ignore_nopath=ignore_nopath)
def get_cpus_by_arch(cls, arch):
"""
Get all CPUs info by arch
Args:
arch(str): CPU architecture
Returns:
lxml.etree.element: CPUs by arch XML
Raises:
:exc:`~LagoException`: If no such ARCH is found
"""
cpu_map_xml = "/usr/share/libvirt/cpu_map.xml"
cpu_map_dir = "/usr/share/libvirt/cpu_map/"
cpu_map_index_xml = cpu_map_dir + "index.xml"
if not os.path.exists(cpu_map_xml):
cpu_xml = ET.ElementTree(
ET.fromstring(create_xml_map(cpu_map_index_xml, cpu_map_dir)))
else:
with open(cpu_map_xml, 'r') as cpu_map:
cpu_xml = ET.parse(cpu_map)
try:
return cpu_xml.xpath('/cpus/arch[@name="{0}"]'.format(arch))[0]
except IndexError:
raise LagoException('No such arch: {0}'.format(arch))
def get_cpus_by_arch(cls, arch):
"""
Get all CPUs info by arch
Args:
arch(str): CPU architecture
Returns:
lxml.etree.element: CPUs by arch XML
Raises:
:exc:`~LagoException`: If no such ARCH is found
"""
with open('/usr/share/libvirt/cpu_map.xml', 'r') as cpu_map:
cpu_xml = ET.parse(cpu_map)
try:
return cpu_xml.xpath('/cpus/arch[@name="{0}"]'.format(arch))[0]
except IndexError:
raise LagoException('No such arch: {0}'.format(arch))
def get_cpu_props(cls, family, arch='x86'):
"""
Get CPU info XML
Args:
family(str): CPU family
arch(str): CPU arch
Returns:
lxml.etree.Element: CPU xml
Raises:
:exc:`~LagoException`: If no such CPU family exists
"""
cpus = cls.get_cpus_by_arch(arch)
try:
return cpus.xpath('model[@name="{0}"]'.format(family))[0]
except IndexError:
raise LagoException('No such CPU family: {0}'.format(family))