4 # Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 """Tool to upgrade the configuration file.
24 This code handles only the types supported by simplejson. As an
25 example, 'set' is a 'list'.
36 from cStringIO import StringIO
38 from ganeti import constants
39 from ganeti import serializer
40 from ganeti import utils
41 from ganeti import cli
42 from ganeti import bootstrap
43 from ganeti import config
44 from ganeti import netutils
45 from ganeti import pathutils
52 #: Target major version we will upgrade to
54 #: Target minor version we will upgrade to
56 #: Target major version for downgrade
58 #: Target minor version for downgrade
62 class Error(Exception):
63 """Generic exception"""
68 """Configures the logging module.
71 formatter = logging.Formatter("%(asctime)s: %(message)s")
73 stderr_handler = logging.StreamHandler()
74 stderr_handler.setFormatter(formatter)
76 stderr_handler.setLevel(logging.NOTSET)
78 stderr_handler.setLevel(logging.INFO)
80 stderr_handler.setLevel(logging.WARNING)
82 root_logger = logging.getLogger("")
83 root_logger.setLevel(logging.NOTSET)
84 root_logger.addHandler(stderr_handler)
87 def CheckHostname(path):
88 """Ensures hostname matches ssconf value.
90 @param path: Path to ssconf file
93 ssconf_master_node = utils.ReadOneLineFile(path)
94 hostname = netutils.GetHostname().name
96 if ssconf_master_node == hostname:
99 logging.warning("Warning: ssconf says master node is '%s', but this"
100 " machine's name is '%s'; this tool must be run on"
101 " the master node", ssconf_master_node, hostname)
105 def _FillIPolicySpecs(default_ipolicy, ipolicy):
106 if "minmax" in ipolicy:
107 for (key, spec) in ipolicy["minmax"][0].items():
108 for (par, val) in default_ipolicy["minmax"][0][key].items():
113 def UpgradeIPolicy(ipolicy, default_ipolicy, isgroup):
114 minmax_keys = ["min", "max"]
115 if any((k in ipolicy) for k in minmax_keys):
117 for key in minmax_keys:
120 minmax[key] = ipolicy[key]
123 ipolicy["minmax"] = [minmax]
124 if isgroup and "std" in ipolicy:
126 _FillIPolicySpecs(default_ipolicy, ipolicy)
129 def UpgradeNetworks(config_data):
130 networks = config_data.get("networks", None)
132 config_data["networks"] = {}
135 def UpgradeCluster(config_data):
136 cluster = config_data.get("cluster", None)
138 raise Error("Cannot find cluster")
139 ipolicy = cluster.setdefault("ipolicy", None)
141 UpgradeIPolicy(ipolicy, constants.IPOLICY_DEFAULTS, False)
144 def UpgradeGroups(config_data):
145 cl_ipolicy = config_data["cluster"].get("ipolicy")
146 for group in config_data["nodegroups"].values():
147 networks = group.get("networks", None)
149 group["networks"] = {}
150 ipolicy = group.get("ipolicy", None)
152 if cl_ipolicy is None:
153 raise Error("A group defines an instance policy but there is no"
154 " instance policy at cluster level")
155 UpgradeIPolicy(ipolicy, cl_ipolicy, True)
158 def UpgradeInstances(config_data):
159 network2uuid = dict((n["name"], n["uuid"])
160 for n in config_data["networks"].values())
161 if "instances" not in config_data:
162 raise Error("Can't find the 'instances' key in the configuration!")
164 for instance, iobj in config_data["instances"].items():
165 for nic in iobj["nics"]:
166 name = nic.get("network", None)
168 uuid = network2uuid.get(name, None)
170 print("NIC with network name %s found."
171 " Substituting with uuid %s." % (name, uuid))
172 nic["network"] = uuid
174 if "disks" not in iobj:
175 raise Error("Instance '%s' doesn't have a disks entry?!" % instance)
176 disks = iobj["disks"]
177 for idx, dobj in enumerate(disks):
178 expected = "disk/%s" % idx
179 current = dobj.get("iv_name", "")
180 if current != expected:
181 logging.warning("Updating iv_name for instance %s/disk %s"
182 " from '%s' to '%s'",
183 instance, idx, current, expected)
184 dobj["iv_name"] = expected
187 def UpgradeRapiUsers():
188 if (os.path.isfile(options.RAPI_USERS_FILE_PRE24) and
189 not os.path.islink(options.RAPI_USERS_FILE_PRE24)):
190 if os.path.exists(options.RAPI_USERS_FILE):
191 raise Error("Found pre-2.4 RAPI users file at %s, but another file"
192 " already exists at %s" %
193 (options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE))
194 logging.info("Found pre-2.4 RAPI users file at %s, renaming to %s",
195 options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE)
196 if not options.dry_run:
197 utils.RenameFile(options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE,
198 mkdir=True, mkdir_mode=0750)
200 # Create a symlink for RAPI users file
201 if (not (os.path.islink(options.RAPI_USERS_FILE_PRE24) or
202 os.path.isfile(options.RAPI_USERS_FILE_PRE24)) and
203 os.path.isfile(options.RAPI_USERS_FILE)):
204 logging.info("Creating symlink from %s to %s",
205 options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE)
206 if not options.dry_run:
207 os.symlink(options.RAPI_USERS_FILE, options.RAPI_USERS_FILE_PRE24)
210 def UpgradeWatcher():
211 # Remove old watcher state file if it exists
212 if os.path.exists(options.WATCHER_STATEFILE):
213 logging.info("Removing watcher state file %s", options.WATCHER_STATEFILE)
214 if not options.dry_run:
215 utils.RemoveFile(options.WATCHER_STATEFILE)
218 def UpgradeFileStoragePaths(config_data):
219 # Write file storage paths
220 if not os.path.exists(options.FILE_STORAGE_PATHS_FILE):
221 cluster = config_data["cluster"]
222 file_storage_dir = cluster.get("file_storage_dir")
223 shared_file_storage_dir = cluster.get("shared_file_storage_dir")
226 logging.info("Ganeti 2.7 and later only allow whitelisted directories"
227 " for file storage; writing existing configuration values"
229 options.FILE_STORAGE_PATHS_FILE)
232 logging.info("File storage directory: %s", file_storage_dir)
233 if shared_file_storage_dir:
234 logging.info("Shared file storage directory: %s",
235 shared_file_storage_dir)
238 buf.write("# List automatically generated from configuration by\n")
239 buf.write("# cfgupgrade at %s\n" % time.asctime())
241 buf.write("%s\n" % file_storage_dir)
242 if shared_file_storage_dir:
243 buf.write("%s\n" % shared_file_storage_dir)
244 utils.WriteFile(file_name=options.FILE_STORAGE_PATHS_FILE,
247 dry_run=options.dry_run,
251 def UpgradeAll(config_data):
252 config_data["version"] = constants.BuildVersion(TARGET_MAJOR,
256 UpgradeFileStoragePaths(config_data)
257 UpgradeNetworks(config_data)
258 UpgradeCluster(config_data)
259 UpgradeGroups(config_data)
260 UpgradeInstances(config_data)
263 def DowngradeDisks(disks, owner):
265 # Remove spindles to downgrade to 2.8
266 if "spindles" in disk:
267 logging.warning("Removing spindles (value=%s) from disk %s (%s) of"
269 disk["spindles"], disk["iv_name"], disk["uuid"], owner)
273 def DowngradeInstances(config_data):
274 if "instances" not in config_data:
275 raise Error("Cannot find the 'instances' key in the configuration!")
276 for (iname, iobj) in config_data["instances"].items():
277 if "disks" not in iobj:
278 raise Error("Cannot find 'disks' key for instance %s" % iname)
279 DowngradeDisks(iobj["disks"], iname)
282 def DowngradeAll(config_data):
283 # Any code specific to a particular version should be labeled that way, so
284 # it can be removed when updating to the next version.
285 DowngradeInstances(config_data)
292 global options, args # pylint: disable=W0603
295 parser = optparse.OptionParser(usage="%prog [--debug|--verbose] [--force]")
296 parser.add_option("--dry-run", dest="dry_run",
298 help="Try to do the conversion, but don't write"
300 parser.add_option(cli.FORCE_OPT)
301 parser.add_option(cli.DEBUG_OPT)
302 parser.add_option(cli.VERBOSE_OPT)
303 parser.add_option("--ignore-hostname", dest="ignore_hostname",
304 action="store_true", default=False,
305 help="Don't abort if hostname doesn't match")
306 parser.add_option("--path", help="Convert configuration in this"
307 " directory instead of '%s'" % pathutils.DATA_DIR,
308 default=pathutils.DATA_DIR, dest="data_dir")
309 parser.add_option("--confdir",
310 help=("Use this directory instead of '%s'" %
312 default=pathutils.CONF_DIR, dest="conf_dir")
313 parser.add_option("--no-verify",
314 help="Do not verify configuration after upgrade",
315 action="store_true", dest="no_verify", default=False)
316 parser.add_option("--downgrade",
317 help="Downgrade to the previous stable version",
318 action="store_true", dest="downgrade", default=False)
319 (options, args) = parser.parse_args()
321 # We need to keep filenames locally because they might be renamed between
323 options.data_dir = os.path.abspath(options.data_dir)
324 options.CONFIG_DATA_PATH = options.data_dir + "/config.data"
325 options.SERVER_PEM_PATH = options.data_dir + "/server.pem"
326 options.KNOWN_HOSTS_PATH = options.data_dir + "/known_hosts"
327 options.RAPI_CERT_FILE = options.data_dir + "/rapi.pem"
328 options.SPICE_CERT_FILE = options.data_dir + "/spice.pem"
329 options.SPICE_CACERT_FILE = options.data_dir + "/spice-ca.pem"
330 options.RAPI_USERS_FILE = options.data_dir + "/rapi/users"
331 options.RAPI_USERS_FILE_PRE24 = options.data_dir + "/rapi_users"
332 options.CONFD_HMAC_KEY = options.data_dir + "/hmac.key"
333 options.CDS_FILE = options.data_dir + "/cluster-domain-secret"
334 options.SSCONF_MASTER_NODE = options.data_dir + "/ssconf_master_node"
335 options.WATCHER_STATEFILE = options.data_dir + "/watcher.data"
336 options.FILE_STORAGE_PATHS_FILE = options.conf_dir + "/file-storage-paths"
342 raise Error("No arguments expected")
343 if options.downgrade and not options.no_verify:
344 options.no_verify = True
347 if not (CheckHostname(options.SSCONF_MASTER_NODE) or options.ignore_hostname):
348 logging.error("Aborting due to hostname mismatch")
349 sys.exit(constants.EXIT_FAILURE)
351 if not options.force:
352 if options.downgrade:
353 usertext = ("The configuration is going to be DOWNGRADED to version %s.%s"
354 " Some configuration data might be removed if they don't fit"
355 " in the old format. Please make sure you have read the"
356 " upgrade notes (available in the UPGRADE file and included"
357 " in other documentation formats) to understand what they"
358 " are. Continue with *DOWNGRADING* the configuration?" %
359 (DOWNGRADE_MAJOR, DOWNGRADE_MINOR))
361 usertext = ("Please make sure you have read the upgrade notes for"
362 " Ganeti %s (available in the UPGRADE file and included"
363 " in other documentation formats). Continue with upgrading"
364 " configuration?" % constants.RELEASE_VERSION)
365 if not cli.AskUser(usertext):
366 sys.exit(constants.EXIT_FAILURE)
368 # Check whether it's a Ganeti configuration directory
369 if not (os.path.isfile(options.CONFIG_DATA_PATH) and
370 os.path.isfile(options.SERVER_PEM_PATH) and
371 os.path.isfile(options.KNOWN_HOSTS_PATH)):
372 raise Error(("%s does not seem to be a Ganeti configuration"
373 " directory") % options.data_dir)
375 if not os.path.isdir(options.conf_dir):
376 raise Error("Not a directory: %s" % options.conf_dir)
378 config_data = serializer.LoadJson(utils.ReadFile(options.CONFIG_DATA_PATH))
381 config_version = config_data["version"]
383 raise Error("Unable to determine configuration version")
385 (config_major, config_minor, config_revision) = \
386 constants.SplitVersion(config_version)
388 logging.info("Found configuration version %s (%d.%d.%d)",
389 config_version, config_major, config_minor, config_revision)
391 if "config_version" in config_data["cluster"]:
392 raise Error("Inconsistent configuration: found config_version in"
393 " configuration file")
395 # Downgrade to the previous stable version
396 if options.downgrade:
397 if config_major != TARGET_MAJOR or config_minor != TARGET_MINOR:
398 raise Error("Downgrade supported only from the latest version (%s.%s),"
399 " found %s (%s.%s.%s) instead" %
400 (TARGET_MAJOR, TARGET_MINOR, config_version, config_major,
401 config_minor, config_revision))
402 DowngradeAll(config_data)
404 # Upgrade from 2.{0..7} to 2.7
405 elif config_major == 2 and config_minor in range(0, 8):
406 if config_revision != 0:
407 logging.warning("Config revision is %s, not 0", config_revision)
408 UpgradeAll(config_data)
410 elif config_major == TARGET_MAJOR and config_minor == TARGET_MINOR:
411 logging.info("No changes necessary")
414 raise Error("Configuration version %d.%d.%d not supported by this tool" %
415 (config_major, config_minor, config_revision))
418 logging.info("Writing configuration file to %s", options.CONFIG_DATA_PATH)
419 utils.WriteFile(file_name=options.CONFIG_DATA_PATH,
420 data=serializer.DumpJson(config_data),
422 dry_run=options.dry_run,
425 if not options.dry_run:
426 bootstrap.GenerateClusterCrypto(
427 False, False, False, False, False,
428 nodecert_file=options.SERVER_PEM_PATH,
429 rapicert_file=options.RAPI_CERT_FILE,
430 spicecert_file=options.SPICE_CERT_FILE,
431 spicecacert_file=options.SPICE_CACERT_FILE,
432 hmackey_file=options.CONFD_HMAC_KEY,
433 cds_file=options.CDS_FILE)
436 logging.critical("Writing configuration failed. It is probably in an"
437 " inconsistent state and needs manual intervention.")
440 # test loading the config file
442 if not (options.dry_run or options.no_verify):
443 logging.info("Testing the new config file...")
444 cfg = config.ConfigWriter(cfg_file=options.CONFIG_DATA_PATH,
445 accept_foreign=options.ignore_hostname,
447 # if we reached this, it's all fine
448 vrfy = cfg.VerifyConfig()
450 logging.error("Errors after conversion:")
452 logging.error(" - %s", item)
455 logging.info("File loaded successfully after upgrading")
458 if options.downgrade:
459 action = "downgraded"
460 out_ver = "%s.%s" % (DOWNGRADE_MAJOR, DOWNGRADE_MINOR)
463 out_ver = constants.RELEASE_VERSION
465 cli.ToStderr("Configuration successfully %s to version %s.",
468 cli.ToStderr("Configuration %s to version %s, but there are errors."
469 "\nPlease review the file.", action, out_ver)
472 if __name__ == "__main__":