def lookup(self, pool, name):
vol = self._get_storagevolume(pool, name)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
try:
fmt = xmlutils.xpath_get_text(
xml, "/volume/target/format/@type")[0]
except IndexError:
# Not all types of libvirt storage can provide volume format
# infomation. When there is no format information, we assume
# it's 'raw'.
fmt = 'raw'
ref_cnt = self._get_ref_cnt(pool, name, path)
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
ref_cnt=ref_cnt,
format=fmt)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro, os_version=os_version, path=path,
bootable=bootable))
return res
def lookup(self, pool, name):
vol = self._get_storagevolume(pool, name)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
fmt = xmlutils.xpath_get_text(xml, "/volume/target/format/@type")[0]
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
format=fmt)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro, os_version=os_version, path=path,
bootable=bootable))
return res
def lookup(self, pool, name):
vol = StorageVolumeModel.get_storagevolume(pool, name, self.conn)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
try:
fmt = xpath_get_text(xml, "/volume/target/format/@type")[0]
except IndexError:
# Not all types of libvirt storage can provide volume format
# infomation. When there is no format information, we assume
# it's 'raw'.
fmt = 'raw'
ref_cnt = get_disk_ref_cnt(self.objstore, self.conn, path)
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
ref_cnt=ref_cnt,
format=fmt)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro,
os_version=os_version,
path=path,
bootable=bootable))
return res
def lookup(self, pool, name):
vol = self._get_storagevolume(pool, name)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
fmt = xmlutils.xpath_get_text(xml, "/volume/target/format/@type")[0]
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
format=fmt)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro,
os_version=os_version,
path=path,
bootable=bootable))
return res
def get_iso_info(self, iso):
iso_prefixes = ['/', 'http', 'https', 'ftp', 'ftps', 'tftp']
if len(filter(iso.startswith, iso_prefixes)) == 0:
raise InvalidParameter("KCHTMPL0006E", {'param': iso})
try:
iso_img = IsoImage(iso)
return iso_img.probe()
except IsoFormatError:
raise InvalidParameter("KCHISO0001E", {'filename': iso})
def get_iso_info(self, iso):
iso_prefixes = ['/', 'http', 'https', 'ftp', 'ftps', 'tftp']
if len(filter(iso.startswith, iso_prefixes)) == 0:
raise InvalidParameter("KCHTMPL0006E", {'param': iso})
try:
iso_img = IsoImage(iso)
return iso_img.probe()
except IsoFormatError:
raise InvalidParameter("KCHISO0001E", {'filename': iso})
def get_iso_info(self, iso):
iso_prefixes = ["/", "http", "https", "ftp", "ftps", "tftp"]
if len(filter(iso.startswith, iso_prefixes)) == 0:
raise InvalidParameter("KCHTMPL0006E", {"param": iso})
try:
iso_img = IsoImage(iso)
return iso_img.probe()
except IsoFormatError:
raise InvalidParameter("KCHISO0001E", {"filename": iso})
def updater(iso_info):
iso_name = os.path.basename(iso_info['path'])[:-3]
duplicates = "%s/%s*" % (params['pool_path'], iso_name)
for f in glob.glob(duplicates):
iso_img = IsoImage(f)
if (iso_info['distro'], iso_info['version']) == iso_img.probe():
return
iso_path = iso_name + hashlib.md5(iso_info['path']).hexdigest() + '.iso'
link_name = os.path.join(params['pool_path'],
os.path.basename(iso_path))
os.symlink(iso_info['path'], link_name)
def lookup(self, pool, name):
vol = StorageVolumeModel.get_storagevolume(pool, name, self.conn)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
try:
fmt = xpath_get_text(xml, "/volume/target/format/@type")[0]
except IndexError:
# Not all types of libvirt storage can provide volume format
# infomation. When there is no format information, we assume
# it's 'raw'.
fmt = 'raw'
iso_img = None
# 'raw' volumes from 'logical' pools may actually be 'iso';
# libvirt always reports them as 'raw'
pool_info = self.storagepool.lookup(pool)
if pool_info['type'] == 'logical' and fmt == 'raw':
try:
iso_img = IsoImage(path)
except IsoFormatError:
# not 'iso' afterall
pass
else:
fmt = 'iso'
used_by = get_disk_used_by(self.objstore, self.conn, path)
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
used_by=used_by,
format=fmt)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
if iso_img is None:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro,
os_version=os_version,
path=path,
bootable=bootable))
return res
def lookup(self, pool, name):
vol = StorageVolumeModel.get_storagevolume(pool, name, self.conn)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
try:
fmt = xpath_get_text(xml, "/volume/target/format/@type")[0]
except IndexError:
# Not all types of libvirt storage can provide volume format
# infomation. When there is no format information, we assume
# it's 'raw'.
fmt = 'raw'
iso_img = None
# 'raw' volumes from 'logical' pools may actually be 'iso';
# libvirt always reports them as 'raw'
pool_info = self.storagepool.lookup(pool)
if pool_info['type'] == 'logical' and fmt == 'raw':
try:
iso_img = IsoImage(path)
except IsoFormatError:
# not 'iso' afterall
pass
else:
fmt = 'iso'
used_by = get_disk_used_by(self.objstore, self.conn, path)
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
used_by=used_by,
format=fmt)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
if iso_img is None:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro, os_version=os_version, path=path,
bootable=bootable))
return res
def updater(iso_info):
iso_name = os.path.basename(iso_info['path'])[:-3]
duplicates = "%s/%s*" % (params['pool_path'], iso_name)
for f in glob.glob(duplicates):
iso_img = IsoImage(f)
if (iso_info['distro'],
iso_info['version']) == iso_img.probe():
return
iso_path = iso_name + hashlib.md5(
iso_info['path']).hexdigest() + '.iso'
link_name = os.path.join(params['pool_path'],
os.path.basename(iso_path))
os.symlink(iso_info['path'], link_name)
def __init__(self, args, scan=False):
"""
Construct a VM Template from a widely variable amount of information.
The only required parameter is a name for the VMTemplate. If present,
the os_distro and os_version fields are used to lookup recommended
settings. Any parameters provided by the caller will override the
defaults. If scan is True and a cdrom is present, the operating system
will be detected by probing the installation media.
"""
self.name = args['name']
self.info = {}
# Identify the cdrom if present
iso_distro = iso_version = 'unknown'
iso = args.get('cdrom', '')
if scan and len(iso) > 0:
iso_prefixes = ['/', 'http', 'https', 'ftp', 'ftps', 'tftp']
if len(filter(iso.startswith, iso_prefixes)) == 0:
raise InvalidParameter("KCHTMPL0006E", {'param': iso})
if not iso.startswith('/'):
self.info.update({'iso_stream': True})
try:
iso_img = IsoImage(iso)
iso_distro, iso_version = iso_img.probe()
except IsoFormatError:
raise InvalidParameter("KCHISO0001E", {'filename': iso})
# Fetch defaults based on the os distro and version
os_distro = args.get('os_distro', iso_distro)
os_version = args.get('os_version', iso_version)
entry = osinfo.lookup(os_distro, os_version)
self.info.update(entry)
# Override with the passed in parameters
graph_args = args.get('graphics')
if graph_args:
graphics = dict(self.info['graphics'])
graphics.update(graph_args)
args['graphics'] = graphics
self.info.update(args)
def lookup(self, pool, name):
vol = StorageVolumeModel.get_storagevolume(pool, name, self.conn)
path = vol.path()
info = vol.info()
xml = vol.XMLDesc(0)
try:
fmt = xpath_get_text(xml, "/volume/target/format/@type")[0]
except IndexError:
# Not all types of libvirt storage can provide volume format
# infomation. When there is no format information, we assume
# it's 'raw'.
fmt = 'raw'
iso_img = None
# 'raw' volumes from 'logical' pools may actually be 'iso';
# libvirt always reports them as 'raw'
pool_info = self.storagepool.lookup(pool)
if pool_info['type'] == 'logical' and fmt == 'raw':
try:
iso_img = IsoImage(path)
except IsoFormatError:
# not 'iso' afterall
pass
else:
fmt = 'iso'
# 'raw' volumes can not be valid image disks (e.g. XML, PDF, TXT are
# raw files), so it's necessary check the 'content' of them
isvalid = True
if fmt == 'raw':
try:
ms = magic.open(magic.NONE)
ms.load()
if ms.file(path).lower() not in VALID_RAW_CONTENT:
isvalid = False
ms.close()
except UnicodeDecodeError:
isvalid = False
used_by = get_disk_used_by(self.objstore, self.conn, path)
res = dict(type=VOLUME_TYPE_MAP[info[0]],
capacity=info[1],
allocation=info[2],
path=path,
used_by=used_by,
format=fmt,
isvalid=isvalid)
if fmt == 'iso':
if os.path.islink(path):
path = os.path.join(os.path.dirname(path), os.readlink(path))
os_distro = os_version = 'unknown'
try:
if iso_img is None:
iso_img = IsoImage(path)
os_distro, os_version = iso_img.probe()
bootable = True
except IsoFormatError:
bootable = False
res.update(
dict(os_distro=os_distro, os_version=os_version, path=path,
bootable=bootable))
return res