| 24 |
24 |
"""
|
| 25 |
25 |
|
| 26 |
26 |
import logging
|
|
27 |
import errno
|
| 27 |
28 |
import string # pylint: disable=W0402
|
|
29 |
import shutil
|
| 28 |
30 |
from cStringIO import StringIO
|
| 29 |
31 |
|
| 30 |
32 |
from ganeti import constants
|
| ... | ... | |
| 320 |
322 |
CAN_MIGRATE = True
|
| 321 |
323 |
REBOOT_RETRY_COUNT = 60
|
| 322 |
324 |
REBOOT_RETRY_INTERVAL = 10
|
|
325 |
_ROOT_DIR = pathutils.RUN_DIR + "/xen-hypervisor"
|
|
326 |
_NICS_DIR = _ROOT_DIR + "/nic" # contains NICs' info
|
|
327 |
_DIRS = [_ROOT_DIR, _NICS_DIR]
|
| 323 |
328 |
|
| 324 |
329 |
ANCILLARY_FILES = [
|
| 325 |
330 |
XEND_CONFIG_FILE,
|
| ... | ... | |
| 383 |
388 |
return utils.PathJoin(self._cfgdir, instance_name)
|
| 384 |
389 |
|
| 385 |
390 |
@classmethod
|
|
391 |
def _WriteNICInfoFile(cls, instance_name, idx, nic):
|
|
392 |
"""Write the Xen config file for the instance.
|
|
393 |
|
|
394 |
This version of the function just writes the config file from static data.
|
|
395 |
|
|
396 |
"""
|
|
397 |
dirs = [(dname, constants.RUN_DIRS_MODE)
|
|
398 |
for dname in cls._DIRS + [cls._InstanceNICDir(instance_name)]]
|
|
399 |
utils.EnsureDirs(dirs)
|
|
400 |
|
|
401 |
cfg_file = cls._InstanceNICFile(instance_name, idx)
|
|
402 |
data = StringIO()
|
|
403 |
|
|
404 |
if nic.netinfo:
|
|
405 |
netinfo = objects.Network.FromDict(nic.netinfo)
|
|
406 |
data.write("NETWORK_NAME=%s\n" % netinfo.name)
|
|
407 |
if netinfo.network:
|
|
408 |
data.write("NETWORK_SUBNET=%s\n" % netinfo.network)
|
|
409 |
if netinfo.gateway:
|
|
410 |
data.write("NETWORK_GATEWAY=%s\n" % netinfo.gateway)
|
|
411 |
if netinfo.network6:
|
|
412 |
data.write("NETWORK_SUBNET6=%s\n" % netinfo.network6)
|
|
413 |
if netinfo.gateway6:
|
|
414 |
data.write("NETWORK_GATEWAY6=%s\n" % netinfo.gateway6)
|
|
415 |
if netinfo.mac_prefix:
|
|
416 |
data.write("NETWORK_MAC_PREFIX=%s\n" % netinfo.mac_prefix)
|
|
417 |
if netinfo.tags:
|
|
418 |
data.write("NETWORK_TAGS=%s\n" % "\ ".join(netinfo.tags))
|
|
419 |
|
|
420 |
data.write("MAC=%s\n" % nic.mac)
|
|
421 |
data.write("IP=%s\n" % nic.ip)
|
|
422 |
data.write("MODE=%s\n" % nic.nicparams[constants.NIC_MODE])
|
|
423 |
data.write("LINK=%s\n" % nic.nicparams[constants.NIC_LINK])
|
|
424 |
|
|
425 |
try:
|
|
426 |
utils.WriteFile(cfg_file, data=data.getvalue())
|
|
427 |
except EnvironmentError, err:
|
|
428 |
raise errors.HypervisorError("Cannot write Xen instance configuration"
|
|
429 |
" file %s: %s" % (cfg_file, err))
|
|
430 |
|
|
431 |
@classmethod
|
|
432 |
def _InstanceNICDir(cls, instance_name):
|
|
433 |
"""Returns the directory holding the tap device files for a given instance.
|
|
434 |
|
|
435 |
"""
|
|
436 |
return utils.PathJoin(cls._NICS_DIR, instance_name)
|
|
437 |
|
|
438 |
@classmethod
|
|
439 |
def _InstanceNICFile(cls, instance_name, seq):
|
|
440 |
"""Returns the name of the file containing the tap device for a given NIC
|
|
441 |
|
|
442 |
"""
|
|
443 |
return utils.PathJoin(cls._InstanceNICDir(instance_name), str(seq))
|
|
444 |
|
|
445 |
@classmethod
|
| 386 |
446 |
def _GetConfig(cls, instance, startup_memory, block_devices):
|
| 387 |
447 |
"""Build Xen configuration for an instance.
|
| 388 |
448 |
|
| ... | ... | |
| 423 |
483 |
|
| 424 |
484 |
"""
|
| 425 |
485 |
utils.RemoveFile(self._ConfigFileName(instance_name))
|
|
486 |
try:
|
|
487 |
shutil.rmtree(self._InstanceNICDir(instance_name))
|
|
488 |
except OSError, err:
|
|
489 |
if err.errno != errno.ENOENT:
|
|
490 |
raise
|
| 426 |
491 |
|
| 427 |
492 |
def _StashConfigFile(self, instance_name):
|
| 428 |
493 |
"""Move the Xen config file to the log directory and return its new path.
|
| ... | ... | |
| 855 |
920 |
constants.HV_CPU_CAP: hv_base.OPT_NONNEGATIVE_INT_CHECK,
|
| 856 |
921 |
constants.HV_CPU_WEIGHT:
|
| 857 |
922 |
(False, lambda x: 0 < x < 65536, "invalid weight", None, None),
|
|
923 |
constants.HV_VIF_SCRIPT: hv_base.OPT_FILE_CHECK,
|
| 858 |
924 |
}
|
| 859 |
925 |
|
| 860 |
926 |
def _GetConfig(self, instance, startup_memory, block_devices):
|
| ... | ... | |
| 906 |
972 |
config.write("name = '%s'\n" % instance.name)
|
| 907 |
973 |
|
| 908 |
974 |
vif_data = []
|
| 909 |
|
for nic in instance.nics:
|
|
975 |
for idx, nic in enumerate(instance.nics):
|
| 910 |
976 |
nic_str = "mac=%s" % (nic.mac)
|
| 911 |
977 |
ip = getattr(nic, "ip", None)
|
| 912 |
978 |
if ip is not None:
|
| 913 |
979 |
nic_str += ", ip=%s" % ip
|
| 914 |
980 |
if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
| 915 |
981 |
nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
|
982 |
if hvp[constants.HV_VIF_SCRIPT]:
|
|
983 |
nic_str += ", script=%s" % hvp[constants.HV_VIF_SCRIPT]
|
| 916 |
984 |
vif_data.append("'%s'" % nic_str)
|
|
985 |
self._WriteNICInfoFile(instance.name, idx, nic)
|
| 917 |
986 |
|
| 918 |
987 |
disk_data = \
|
| 919 |
988 |
_GetConfigFileDiskData(block_devices, hvp[constants.HV_BLOCKDEV_PREFIX])
|
| ... | ... | |
| 978 |
1047 |
constants.HV_VIF_TYPE:
|
| 979 |
1048 |
hv_base.ParamInSet(False, constants.HT_HVM_VALID_VIF_TYPES),
|
| 980 |
1049 |
constants.HV_VIRIDIAN: hv_base.NO_CHECK,
|
|
1050 |
constants.HV_VIF_SCRIPT: hv_base.OPT_FILE_CHECK,
|
| 981 |
1051 |
}
|
| 982 |
1052 |
|
| 983 |
1053 |
def _GetConfig(self, instance, startup_memory, block_devices):
|
| ... | ... | |
| 1071 |
1141 |
# parameter 'model' is only valid with type 'ioemu'
|
| 1072 |
1142 |
nic_type_str = ", model=%s, type=%s" % \
|
| 1073 |
1143 |
(nic_type, constants.HT_HVM_VIF_IOEMU)
|
| 1074 |
|
for nic in instance.nics:
|
|
1144 |
for idx, nic in enumerate(instance.nics):
|
| 1075 |
1145 |
nic_str = "mac=%s%s" % (nic.mac, nic_type_str)
|
| 1076 |
1146 |
ip = getattr(nic, "ip", None)
|
| 1077 |
1147 |
if ip is not None:
|
| 1078 |
1148 |
nic_str += ", ip=%s" % ip
|
| 1079 |
1149 |
if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
| 1080 |
1150 |
nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK]
|
|
1151 |
if hvp[constants.HV_VIF_SCRIPT]:
|
|
1152 |
nic_str += ", script=%s" % hvp[constants.HV_VIF_SCRIPT]
|
| 1081 |
1153 |
vif_data.append("'%s'" % nic_str)
|
|
1154 |
self._WriteNICInfoFile(instance.name, idx, nic)
|
| 1082 |
1155 |
|
| 1083 |
1156 |
config.write("vif = [%s]\n" % ",".join(vif_data))
|
| 1084 |
1157 |
|