Revision 71fe51f8 lib/hypervisor/hv_xen.py
| b/lib/hypervisor/hv_xen.py | ||
|---|---|---|
| 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 |
| ... | ... | |
| 319 | 321 |
CAN_MIGRATE = True |
| 320 | 322 |
REBOOT_RETRY_COUNT = 60 |
| 321 | 323 |
REBOOT_RETRY_INTERVAL = 10 |
| 324 |
_ROOT_DIR = pathutils.RUN_DIR + "/xen-hypervisor" |
|
| 325 |
_NICS_DIR = _ROOT_DIR + "/nic" # contains NICs' info |
|
| 326 |
_DIRS = [_ROOT_DIR, _NICS_DIR] |
|
| 322 | 327 |
|
| 323 | 328 |
ANCILLARY_FILES = [ |
| 324 | 329 |
XEND_CONFIG_FILE, |
| ... | ... | |
| 382 | 387 |
return utils.PathJoin(self._cfgdir, instance_name) |
| 383 | 388 |
|
| 384 | 389 |
@classmethod |
| 390 |
def _WriteNICInfoFile(cls, instance_name, idx, nic): |
|
| 391 |
"""Write the Xen config file for the instance. |
|
| 392 |
|
|
| 393 |
This version of the function just writes the config file from static data. |
|
| 394 |
|
|
| 395 |
""" |
|
| 396 |
dirs = [(dname, constants.RUN_DIRS_MODE) |
|
| 397 |
for dname in cls._DIRS + [cls._InstanceNICDir(instance_name)]] |
|
| 398 |
utils.EnsureDirs(dirs) |
|
| 399 |
|
|
| 400 |
cfg_file = cls._InstanceNICFile(instance_name, idx) |
|
| 401 |
data = StringIO() |
|
| 402 |
|
|
| 403 |
if nic.netinfo: |
|
| 404 |
netinfo = objects.Network.FromDict(nic.netinfo) |
|
| 405 |
data.write("NETWORK_NAME=%s\n" % netinfo.name)
|
|
| 406 |
if netinfo.network: |
|
| 407 |
data.write("NETWORK_SUBNET=%s\n" % netinfo.network)
|
|
| 408 |
if netinfo.gateway: |
|
| 409 |
data.write("NETWORK_GATEWAY=%s\n" % netinfo.gateway)
|
|
| 410 |
if netinfo.network6: |
|
| 411 |
data.write("NETWORK_SUBNET6=%s\n" % netinfo.network6)
|
|
| 412 |
if netinfo.gateway6: |
|
| 413 |
data.write("NETWORK_GATEWAY6=%s\n" % netinfo.gateway6)
|
|
| 414 |
if netinfo.mac_prefix: |
|
| 415 |
data.write("NETWORK_MAC_PREFIX=%s\n" % netinfo.mac_prefix)
|
|
| 416 |
if netinfo.tags: |
|
| 417 |
data.write("NETWORK_TAGS=%s\n" % "\ ".join(netinfo.tags))
|
|
| 418 |
|
|
| 419 |
data.write("MAC=%s\n" % nic.mac)
|
|
| 420 |
data.write("IP=%s\n" % nic.ip)
|
|
| 421 |
data.write("MODE=%s\n" % nic.nicparams[constants.NIC_MODE])
|
|
| 422 |
data.write("LINK=%s\n" % nic.nicparams[constants.NIC_LINK])
|
|
| 423 |
|
|
| 424 |
try: |
|
| 425 |
utils.WriteFile(cfg_file, data=data.getvalue()) |
|
| 426 |
except EnvironmentError, err: |
|
| 427 |
raise errors.HypervisorError("Cannot write Xen instance configuration"
|
|
| 428 |
" file %s: %s" % (cfg_file, err)) |
|
| 429 |
|
|
| 430 |
@classmethod |
|
| 431 |
def _InstanceNICDir(cls, instance_name): |
|
| 432 |
"""Returns the directory holding the tap device files for a given instance. |
|
| 433 |
|
|
| 434 |
""" |
|
| 435 |
return utils.PathJoin(cls._NICS_DIR, instance_name) |
|
| 436 |
|
|
| 437 |
@classmethod |
|
| 438 |
def _InstanceNICFile(cls, instance_name, seq): |
|
| 439 |
"""Returns the name of the file containing the tap device for a given NIC |
|
| 440 |
|
|
| 441 |
""" |
|
| 442 |
return utils.PathJoin(cls._InstanceNICDir(instance_name), str(seq)) |
|
| 443 |
|
|
| 444 |
@classmethod |
|
| 385 | 445 |
def _GetConfig(cls, instance, startup_memory, block_devices): |
| 386 | 446 |
"""Build Xen configuration for an instance. |
| 387 | 447 |
|
| ... | ... | |
| 422 | 482 |
|
| 423 | 483 |
""" |
| 424 | 484 |
utils.RemoveFile(self._ConfigFileName(instance_name)) |
| 485 |
try: |
|
| 486 |
shutil.rmtree(self._InstanceNICDir(instance_name)) |
|
| 487 |
except OSError, err: |
|
| 488 |
if err.errno != errno.ENOENT: |
|
| 489 |
raise |
|
| 425 | 490 |
|
| 426 | 491 |
def _StashConfigFile(self, instance_name): |
| 427 | 492 |
"""Move the Xen config file to the log directory and return its new path. |
| ... | ... | |
| 854 | 919 |
constants.HV_CPU_CAP: hv_base.OPT_NONNEGATIVE_INT_CHECK, |
| 855 | 920 |
constants.HV_CPU_WEIGHT: |
| 856 | 921 |
(False, lambda x: 0 < x < 65536, "invalid weight", None, None), |
| 922 |
constants.HV_VIF_SCRIPT: hv_base.OPT_FILE_CHECK, |
|
| 857 | 923 |
} |
| 858 | 924 |
|
| 859 | 925 |
def _GetConfig(self, instance, startup_memory, block_devices): |
| ... | ... | |
| 905 | 971 |
config.write("name = '%s'\n" % instance.name)
|
| 906 | 972 |
|
| 907 | 973 |
vif_data = [] |
| 908 |
for nic in instance.nics:
|
|
| 974 |
for idx, nic in enumerate(instance.nics):
|
|
| 909 | 975 |
nic_str = "mac=%s" % (nic.mac) |
| 910 | 976 |
ip = getattr(nic, "ip", None) |
| 911 | 977 |
if ip is not None: |
| 912 | 978 |
nic_str += ", ip=%s" % ip |
| 913 | 979 |
if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED: |
| 914 | 980 |
nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK] |
| 981 |
if hvp[constants.HV_VIF_SCRIPT]: |
|
| 982 |
nic_str += ", script=%s" % hvp[constants.HV_VIF_SCRIPT] |
|
| 915 | 983 |
vif_data.append("'%s'" % nic_str)
|
| 984 |
self._WriteNICInfoFile(instance.name, idx, nic) |
|
| 916 | 985 |
|
| 917 | 986 |
disk_data = \ |
| 918 | 987 |
_GetConfigFileDiskData(block_devices, hvp[constants.HV_BLOCKDEV_PREFIX]) |
| ... | ... | |
| 977 | 1046 |
constants.HV_VIF_TYPE: |
| 978 | 1047 |
hv_base.ParamInSet(False, constants.HT_HVM_VALID_VIF_TYPES), |
| 979 | 1048 |
constants.HV_VIRIDIAN: hv_base.NO_CHECK, |
| 1049 |
constants.HV_VIF_SCRIPT: hv_base.OPT_FILE_CHECK, |
|
| 980 | 1050 |
} |
| 981 | 1051 |
|
| 982 | 1052 |
def _GetConfig(self, instance, startup_memory, block_devices): |
| ... | ... | |
| 1070 | 1140 |
# parameter 'model' is only valid with type 'ioemu' |
| 1071 | 1141 |
nic_type_str = ", model=%s, type=%s" % \ |
| 1072 | 1142 |
(nic_type, constants.HT_HVM_VIF_IOEMU) |
| 1073 |
for nic in instance.nics:
|
|
| 1143 |
for idx, nic in enumerate(instance.nics):
|
|
| 1074 | 1144 |
nic_str = "mac=%s%s" % (nic.mac, nic_type_str) |
| 1075 | 1145 |
ip = getattr(nic, "ip", None) |
| 1076 | 1146 |
if ip is not None: |
| 1077 | 1147 |
nic_str += ", ip=%s" % ip |
| 1078 | 1148 |
if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED: |
| 1079 | 1149 |
nic_str += ", bridge=%s" % nic.nicparams[constants.NIC_LINK] |
| 1150 |
if hvp[constants.HV_VIF_SCRIPT]: |
|
| 1151 |
nic_str += ", script=%s" % hvp[constants.HV_VIF_SCRIPT] |
|
| 1080 | 1152 |
vif_data.append("'%s'" % nic_str)
|
| 1153 |
self._WriteNICInfoFile(instance.name, idx, nic) |
|
| 1081 | 1154 |
|
| 1082 | 1155 |
config.write("vif = [%s]\n" % ",".join(vif_data))
|
| 1083 | 1156 |
|
Also available in: Unified diff