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#!/usr/bin/python
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#
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# Copyright (C) 2006, 2007, 2008 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Node related commands"""
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# pylint: disable-msg=W0401,W0613,W0614,C0103
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# W0401: Wildcard import ganeti.cli
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# W0613: Unused argument, since all functions follow the same API
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# W0614: Unused import %s from wildcard import (since we need cli)
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# C0103: Invalid name gnt-node
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import sys
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from ganeti.cli import *
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from ganeti import opcodes
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from ganeti import utils
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from ganeti import constants
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from ganeti import errors
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from ganeti import bootstrap
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38

    
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#: default list of field for L{ListNodes}
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_LIST_DEF_FIELDS = [
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  "name", "dtotal", "dfree",
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  "mtotal", "mnode", "mfree",
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  "pinst_cnt", "sinst_cnt",
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  ]
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46

    
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#: default list of field for L{ListStorage}
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_LIST_STOR_DEF_FIELDS = [
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  constants.SF_NODE,
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  constants.SF_TYPE,
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  constants.SF_NAME,
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  constants.SF_SIZE,
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  constants.SF_USED,
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  constants.SF_FREE,
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  constants.SF_ALLOCATABLE,
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  ]
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58

    
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#: headers (and full field list for L{ListNodes}
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_LIST_HEADERS = {
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  "name": "Node", "pinst_cnt": "Pinst", "sinst_cnt": "Sinst",
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  "pinst_list": "PriInstances", "sinst_list": "SecInstances",
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  "pip": "PrimaryIP", "sip": "SecondaryIP",
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  "dtotal": "DTotal", "dfree": "DFree",
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  "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree",
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  "bootid": "BootID",
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  "ctotal": "CTotal", "cnodes": "CNodes", "csockets": "CSockets",
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  "tags": "Tags",
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  "serial_no": "SerialNo",
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  "master_candidate": "MasterC",
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  "master": "IsMaster",
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  "offline": "Offline", "drained": "Drained",
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  "role": "Role",
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  "ctime": "CTime", "mtime": "MTime", "uuid": "UUID"
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  }
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#: headers (and full field list for L{ListStorage}
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_LIST_STOR_HEADERS = {
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  constants.SF_NODE: "Node",
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  constants.SF_TYPE: "Type",
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  constants.SF_NAME: "Name",
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  constants.SF_SIZE: "Size",
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  constants.SF_USED: "Used",
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  constants.SF_FREE: "Free",
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  constants.SF_ALLOCATABLE: "Allocatable",
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  }
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89

    
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#: User-facing storage unit types
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_USER_STORAGE_TYPE = {
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  constants.ST_FILE: "file",
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  constants.ST_LVM_PV: "lvm-pv",
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  constants.ST_LVM_VG: "lvm-vg",
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  }
96

    
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_STORAGE_TYPE_OPT = \
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  cli_option("-t", "--storage-type",
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             dest="user_storage_type",
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             choices=_USER_STORAGE_TYPE.keys(),
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             default=None,
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             metavar="STORAGE_TYPE",
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             help=("Storage type (%s)" %
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                   utils.CommaJoin(_USER_STORAGE_TYPE.keys())))
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106
_REPAIRABLE_STORAGE_TYPES = \
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  [st for st, so in constants.VALID_STORAGE_OPERATIONS.iteritems()
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   if constants.SO_FIX_CONSISTENCY in so]
109

    
110
_MODIFIABLE_STORAGE_TYPES = constants.MODIFIABLE_STORAGE_FIELDS.keys()
111

    
112

    
113
def ConvertStorageType(user_storage_type):
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  """Converts a user storage type to its internal name.
115

    
116
  """
117
  try:
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    return _USER_STORAGE_TYPE[user_storage_type]
119
  except KeyError:
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    raise errors.OpPrereqError("Unknown storage type: %s" % user_storage_type,
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                               errors.ECODE_INVAL)
122

    
123

    
124
@UsesRPC
125
def AddNode(opts, args):
126
  """Add a node to the cluster.
127

    
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  @param opts: the command line options selected by the user
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  @type args: list
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  @param args: should contain only one element, the new node name
131
  @rtype: int
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  @return: the desired exit code
133

    
134
  """
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  cl = GetClient()
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  dns_data = utils.GetHostInfo(utils.HostInfo.NormalizeName(args[0]))
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  node = dns_data.name
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  readd = opts.readd
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140
  try:
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    output = cl.QueryNodes(names=[node], fields=['name', 'sip'],
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                           use_locking=False)
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    node_exists, sip = output[0]
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  except (errors.OpPrereqError, errors.OpExecError):
145
    node_exists = ""
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    sip = None
147

    
148
  if readd:
149
    if not node_exists:
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      ToStderr("Node %s not in the cluster"
151
               " - please retry without '--readd'", node)
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      return 1
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  else:
154
    if node_exists:
155
      ToStderr("Node %s already in the cluster (as %s)"
156
               " - please retry with '--readd'", node, node_exists)
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      return 1
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    sip = opts.secondary_ip
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160
  # read the cluster name from the master
161
  output = cl.QueryConfigValues(['cluster_name'])
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  cluster_name = output[0]
163

    
164
  if not readd:
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    ToStderr("-- WARNING -- \n"
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             "Performing this operation is going to replace the ssh daemon"
167
             " keypair\n"
168
             "on the target machine (%s) with the ones of the"
169
             " current one\n"
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             "and grant full intra-cluster ssh root access to/from it\n", node)
171

    
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  bootstrap.SetupNodeDaemon(cluster_name, node, opts.ssh_key_check)
173

    
174
  op = opcodes.OpAddNode(node_name=args[0], secondary_ip=sip,
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                         readd=opts.readd)
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  SubmitOpCode(op, opts=opts)
177

    
178

    
179
def ListNodes(opts, args):
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  """List nodes and their properties.
181

    
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  @param opts: the command line options selected by the user
183
  @type args: list
184
  @param args: should be an empty list
185
  @rtype: int
186
  @return: the desired exit code
187

    
188
  """
189
  if opts.output is None:
190
    selected_fields = _LIST_DEF_FIELDS
191
  elif opts.output.startswith("+"):
192
    selected_fields = _LIST_DEF_FIELDS + opts.output[1:].split(",")
193
  else:
194
    selected_fields = opts.output.split(",")
195

    
196
  output = GetClient().QueryNodes(args, selected_fields, opts.do_locking)
197

    
198
  if not opts.no_headers:
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    headers = _LIST_HEADERS
200
  else:
201
    headers = None
202

    
203
  unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
204

    
205
  numfields = ["dtotal", "dfree",
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               "mtotal", "mnode", "mfree",
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               "pinst_cnt", "sinst_cnt",
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               "ctotal", "serial_no"]
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210
  list_type_fields = ("pinst_list", "sinst_list", "tags")
211
  # change raw values to nicer strings
212
  for row in output:
213
    for idx, field in enumerate(selected_fields):
214
      val = row[idx]
215
      if field in list_type_fields:
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        val = ",".join(val)
217
      elif field in ('master', 'master_candidate', 'offline', 'drained'):
218
        if val:
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          val = 'Y'
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        else:
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          val = 'N'
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      elif field == "ctime" or field == "mtime":
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        val = utils.FormatTime(val)
224
      elif val is None:
225
        val = "?"
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      row[idx] = str(val)
227

    
228
  data = GenerateTable(separator=opts.separator, headers=headers,
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                       fields=selected_fields, unitfields=unitfields,
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                       numfields=numfields, data=output, units=opts.units)
231
  for line in data:
232
    ToStdout(line)
233

    
234
  return 0
235

    
236

    
237
def EvacuateNode(opts, args):
238
  """Relocate all secondary instance from a node.
239

    
240
  @param opts: the command line options selected by the user
241
  @type args: list
242
  @param args: should be an empty list
243
  @rtype: int
244
  @return: the desired exit code
245

    
246
  """
247
  cl = GetClient()
248
  force = opts.force
249

    
250
  dst_node = opts.dst_node
251
  iallocator = opts.iallocator
252

    
253
  cnt = [dst_node, iallocator].count(None)
254
  if cnt != 1:
255
    raise errors.OpPrereqError("One and only one of the -n and -I"
256
                               " options must be passed", errors.ECODE_INVAL)
257

    
258
  op = opcodes.OpNodeEvacuationStrategy(nodes=args,
259
                                        iallocator=iallocator,
260
                                        remote_node=dst_node)
261

    
262
  result = SubmitOpCode(op, cl=cl, opts=opts)
263
  if not result:
264
    # no instances to migrate
265
    ToStderr("No secondary instances on node(s) %s, exiting.",
266
             utils.CommaJoin(args))
267
    return constants.EXIT_SUCCESS
268

    
269
  if not force and not AskUser("Relocate instance(s) %s from node(s) %s?" %
270
                               (",".join("'%s'" % name[0] for name in result),
271
                               utils.CommaJoin(args))):
272
    return constants.EXIT_CONFIRMATION
273

    
274
  jex = JobExecutor(cl=cl, opts=opts)
275
  for row in result:
276
    iname = row[0]
277
    node = row[1]
278
    ToStdout("Will relocate instance %s to node %s", iname, node)
279
    op = opcodes.OpReplaceDisks(instance_name=iname,
280
                                remote_node=node, disks=[],
281
                                mode=constants.REPLACE_DISK_CHG,
282
                                early_release=opts.early_release)
283
    jex.QueueJob(iname, op)
284
  results = jex.GetResults()
285
  bad_cnt = len([row for row in results if not row[0]])
286
  if bad_cnt == 0:
287
    ToStdout("All %d instance(s) failed over successfully.", len(results))
288
    rcode = constants.EXIT_SUCCESS
289
  else:
290
    ToStdout("There were errors during the failover:\n"
291
             "%d error(s) out of %d instance(s).", bad_cnt, len(results))
292
    rcode = constants.EXIT_FAILURE
293
  return rcode
294

    
295

    
296
def FailoverNode(opts, args):
297
  """Failover all primary instance on a node.
298

    
299
  @param opts: the command line options selected by the user
300
  @type args: list
301
  @param args: should be an empty list
302
  @rtype: int
303
  @return: the desired exit code
304

    
305
  """
306
  cl = GetClient()
307
  force = opts.force
308
  selected_fields = ["name", "pinst_list"]
309

    
310
  # these fields are static data anyway, so it doesn't matter, but
311
  # locking=True should be safer
312
  result = cl.QueryNodes(names=args, fields=selected_fields,
313
                         use_locking=False)
314
  node, pinst = result[0]
315

    
316
  if not pinst:
317
    ToStderr("No primary instances on node %s, exiting.", node)
318
    return 0
319

    
320
  pinst = utils.NiceSort(pinst)
321

    
322
  retcode = 0
323

    
324
  if not force and not AskUser("Fail over instance(s) %s?" %
325
                               (",".join("'%s'" % name for name in pinst))):
326
    return 2
327

    
328
  jex = JobExecutor(cl=cl, opts=opts)
329
  for iname in pinst:
330
    op = opcodes.OpFailoverInstance(instance_name=iname,
331
                                    ignore_consistency=opts.ignore_consistency)
332
    jex.QueueJob(iname, op)
333
  results = jex.GetResults()
334
  bad_cnt = len([row for row in results if not row[0]])
335
  if bad_cnt == 0:
336
    ToStdout("All %d instance(s) failed over successfully.", len(results))
337
  else:
338
    ToStdout("There were errors during the failover:\n"
339
             "%d error(s) out of %d instance(s).", bad_cnt, len(results))
340
  return retcode
341

    
342

    
343
def MigrateNode(opts, args):
344
  """Migrate all primary instance on a node.
345

    
346
  """
347
  cl = GetClient()
348
  force = opts.force
349
  selected_fields = ["name", "pinst_list"]
350

    
351
  result = cl.QueryNodes(names=args, fields=selected_fields, use_locking=False)
352
  node, pinst = result[0]
353

    
354
  if not pinst:
355
    ToStdout("No primary instances on node %s, exiting." % node)
356
    return 0
357

    
358
  pinst = utils.NiceSort(pinst)
359

    
360
  if not force and not AskUser("Migrate instance(s) %s?" %
361
                               (",".join("'%s'" % name for name in pinst))):
362
    return 2
363

    
364
  op = opcodes.OpMigrateNode(node_name=args[0], live=opts.live)
365
  SubmitOpCode(op, cl=cl, opts=opts)
366

    
367

    
368
def ShowNodeConfig(opts, args):
369
  """Show node information.
370

    
371
  @param opts: the command line options selected by the user
372
  @type args: list
373
  @param args: should either be an empty list, in which case
374
      we show information about all nodes, or should contain
375
      a list of nodes to be queried for information
376
  @rtype: int
377
  @return: the desired exit code
378

    
379
  """
380
  cl = GetClient()
381
  result = cl.QueryNodes(fields=["name", "pip", "sip",
382
                                 "pinst_list", "sinst_list",
383
                                 "master_candidate", "drained", "offline"],
384
                         names=args, use_locking=False)
385

    
386
  for (name, primary_ip, secondary_ip, pinst, sinst,
387
       is_mc, drained, offline) in result:
388
    ToStdout("Node name: %s", name)
389
    ToStdout("  primary ip: %s", primary_ip)
390
    ToStdout("  secondary ip: %s", secondary_ip)
391
    ToStdout("  master candidate: %s", is_mc)
392
    ToStdout("  drained: %s", drained)
393
    ToStdout("  offline: %s", offline)
394
    if pinst:
395
      ToStdout("  primary for instances:")
396
      for iname in utils.NiceSort(pinst):
397
        ToStdout("    - %s", iname)
398
    else:
399
      ToStdout("  primary for no instances")
400
    if sinst:
401
      ToStdout("  secondary for instances:")
402
      for iname in utils.NiceSort(sinst):
403
        ToStdout("    - %s", iname)
404
    else:
405
      ToStdout("  secondary for no instances")
406

    
407
  return 0
408

    
409

    
410
def RemoveNode(opts, args):
411
  """Remove a node from the cluster.
412

    
413
  @param opts: the command line options selected by the user
414
  @type args: list
415
  @param args: should contain only one element, the name of
416
      the node to be removed
417
  @rtype: int
418
  @return: the desired exit code
419

    
420
  """
421
  op = opcodes.OpRemoveNode(node_name=args[0])
422
  SubmitOpCode(op, opts=opts)
423
  return 0
424

    
425

    
426
def PowercycleNode(opts, args):
427
  """Remove a node from the cluster.
428

    
429
  @param opts: the command line options selected by the user
430
  @type args: list
431
  @param args: should contain only one element, the name of
432
      the node to be removed
433
  @rtype: int
434
  @return: the desired exit code
435

    
436
  """
437
  node = args[0]
438
  if (not opts.confirm and
439
      not AskUser("Are you sure you want to hard powercycle node %s?" % node)):
440
    return 2
441

    
442
  op = opcodes.OpPowercycleNode(node_name=node, force=opts.force)
443
  result = SubmitOpCode(op, opts=opts)
444
  ToStderr(result)
445
  return 0
446

    
447

    
448
def ListVolumes(opts, args):
449
  """List logical volumes on node(s).
450

    
451
  @param opts: the command line options selected by the user
452
  @type args: list
453
  @param args: should either be an empty list, in which case
454
      we list data for all nodes, or contain a list of nodes
455
      to display data only for those
456
  @rtype: int
457
  @return: the desired exit code
458

    
459
  """
460
  if opts.output is None:
461
    selected_fields = ["node", "phys", "vg",
462
                       "name", "size", "instance"]
463
  else:
464
    selected_fields = opts.output.split(",")
465

    
466
  op = opcodes.OpQueryNodeVolumes(nodes=args, output_fields=selected_fields)
467
  output = SubmitOpCode(op, opts=opts)
468

    
469
  if not opts.no_headers:
470
    headers = {"node": "Node", "phys": "PhysDev",
471
               "vg": "VG", "name": "Name",
472
               "size": "Size", "instance": "Instance"}
473
  else:
474
    headers = None
475

    
476
  unitfields = ["size"]
477

    
478
  numfields = ["size"]
479

    
480
  data = GenerateTable(separator=opts.separator, headers=headers,
481
                       fields=selected_fields, unitfields=unitfields,
482
                       numfields=numfields, data=output, units=opts.units)
483

    
484
  for line in data:
485
    ToStdout(line)
486

    
487
  return 0
488

    
489

    
490
def ListStorage(opts, args):
491
  """List physical volumes on node(s).
492

    
493
  @param opts: the command line options selected by the user
494
  @type args: list
495
  @param args: should either be an empty list, in which case
496
      we list data for all nodes, or contain a list of nodes
497
      to display data only for those
498
  @rtype: int
499
  @return: the desired exit code
500

    
501
  """
502
  # TODO: Default to ST_FILE if LVM is disabled on the cluster
503
  if opts.user_storage_type is None:
504
    opts.user_storage_type = constants.ST_LVM_PV
505

    
506
  storage_type = ConvertStorageType(opts.user_storage_type)
507

    
508
  if opts.output is None:
509
    selected_fields = _LIST_STOR_DEF_FIELDS
510
  elif opts.output.startswith("+"):
511
    selected_fields = _LIST_STOR_DEF_FIELDS + opts.output[1:].split(",")
512
  else:
513
    selected_fields = opts.output.split(",")
514

    
515
  op = opcodes.OpQueryNodeStorage(nodes=args,
516
                                  storage_type=storage_type,
517
                                  output_fields=selected_fields)
518
  output = SubmitOpCode(op, opts=opts)
519

    
520
  if not opts.no_headers:
521
    headers = {
522
      constants.SF_NODE: "Node",
523
      constants.SF_TYPE: "Type",
524
      constants.SF_NAME: "Name",
525
      constants.SF_SIZE: "Size",
526
      constants.SF_USED: "Used",
527
      constants.SF_FREE: "Free",
528
      constants.SF_ALLOCATABLE: "Allocatable",
529
      }
530
  else:
531
    headers = None
532

    
533
  unitfields = [constants.SF_SIZE, constants.SF_USED, constants.SF_FREE]
534
  numfields = [constants.SF_SIZE, constants.SF_USED, constants.SF_FREE]
535

    
536
  # change raw values to nicer strings
537
  for row in output:
538
    for idx, field in enumerate(selected_fields):
539
      val = row[idx]
540
      if field == constants.SF_ALLOCATABLE:
541
        if val:
542
          val = "Y"
543
        else:
544
          val = "N"
545
      row[idx] = str(val)
546

    
547
  data = GenerateTable(separator=opts.separator, headers=headers,
548
                       fields=selected_fields, unitfields=unitfields,
549
                       numfields=numfields, data=output, units=opts.units)
550

    
551
  for line in data:
552
    ToStdout(line)
553

    
554
  return 0
555

    
556

    
557
def ModifyStorage(opts, args):
558
  """Modify storage volume on a node.
559

    
560
  @param opts: the command line options selected by the user
561
  @type args: list
562
  @param args: should contain 3 items: node name, storage type and volume name
563
  @rtype: int
564
  @return: the desired exit code
565

    
566
  """
567
  (node_name, user_storage_type, volume_name) = args
568

    
569
  storage_type = ConvertStorageType(user_storage_type)
570

    
571
  changes = {}
572

    
573
  if opts.allocatable is not None:
574
    changes[constants.SF_ALLOCATABLE] = opts.allocatable
575

    
576
  if changes:
577
    op = opcodes.OpModifyNodeStorage(node_name=node_name,
578
                                     storage_type=storage_type,
579
                                     name=volume_name,
580
                                     changes=changes)
581
    SubmitOpCode(op, opts=opts)
582
  else:
583
    ToStderr("No changes to perform, exiting.")
584

    
585

    
586
def RepairStorage(opts, args):
587
  """Repairs a storage volume on a node.
588

    
589
  @param opts: the command line options selected by the user
590
  @type args: list
591
  @param args: should contain 3 items: node name, storage type and volume name
592
  @rtype: int
593
  @return: the desired exit code
594

    
595
  """
596
  (node_name, user_storage_type, volume_name) = args
597

    
598
  storage_type = ConvertStorageType(user_storage_type)
599

    
600
  op = opcodes.OpRepairNodeStorage(node_name=node_name,
601
                                   storage_type=storage_type,
602
                                   name=volume_name,
603
                                   ignore_consistency=opts.ignore_consistency)
604
  SubmitOpCode(op, opts=opts)
605

    
606

    
607
def SetNodeParams(opts, args):
608
  """Modifies a node.
609

    
610
  @param opts: the command line options selected by the user
611
  @type args: list
612
  @param args: should contain only one element, the node name
613
  @rtype: int
614
  @return: the desired exit code
615

    
616
  """
617
  if [opts.master_candidate, opts.drained, opts.offline].count(None) == 3:
618
    ToStderr("Please give at least one of the parameters.")
619
    return 1
620

    
621
  op = opcodes.OpSetNodeParams(node_name=args[0],
622
                               master_candidate=opts.master_candidate,
623
                               offline=opts.offline,
624
                               drained=opts.drained,
625
                               force=opts.force,
626
                               auto_promote=opts.auto_promote)
627

    
628
  # even if here we process the result, we allow submit only
629
  result = SubmitOrSend(op, opts)
630

    
631
  if result:
632
    ToStdout("Modified node %s", args[0])
633
    for param, data in result:
634
      ToStdout(" - %-5s -> %s", param, data)
635
  return 0
636

    
637

    
638
commands = {
639
  'add': (
640
    AddNode, [ArgHost(min=1, max=1)],
641
    [SECONDARY_IP_OPT, READD_OPT, NOSSH_KEYCHECK_OPT],
642
    "[-s ip] [--readd] [--no-ssh-key-check] <node_name>",
643
    "Add a node to the cluster"),
644
  'evacuate': (
645
    EvacuateNode, [ArgNode(min=1)],
646
    [FORCE_OPT, IALLOCATOR_OPT, NEW_SECONDARY_OPT, EARLY_RELEASE_OPT],
647
    "[-f] {-I <iallocator> | -n <dst>} <node>",
648
    "Relocate the secondary instances from a node"
649
    " to other nodes (only for instances with drbd disk template)"),
650
  'failover': (
651
    FailoverNode, ARGS_ONE_NODE, [FORCE_OPT, IGNORE_CONSIST_OPT],
652
    "[-f] <node>",
653
    "Stops the primary instances on a node and start them on their"
654
    " secondary node (only for instances with drbd disk template)"),
655
  'migrate': (
656
    MigrateNode, ARGS_ONE_NODE, [FORCE_OPT, NONLIVE_OPT],
657
    "[-f] <node>",
658
    "Migrate all the primary instance on a node away from it"
659
    " (only for instances of type drbd)"),
660
  'info': (
661
    ShowNodeConfig, ARGS_MANY_NODES, [],
662
    "[<node_name>...]", "Show information about the node(s)"),
663
  'list': (
664
    ListNodes, ARGS_MANY_NODES,
665
    [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
666
    "[nodes...]",
667
    "Lists the nodes in the cluster. The available fields are (see the man"
668
    " page for details): %s. The default field list is (in order): %s." %
669
    (utils.CommaJoin(_LIST_HEADERS), utils.CommaJoin(_LIST_DEF_FIELDS))),
670
  'modify': (
671
    SetNodeParams, ARGS_ONE_NODE,
672
    [FORCE_OPT, SUBMIT_OPT, MC_OPT, DRAINED_OPT, OFFLINE_OPT,
673
     AUTO_PROMOTE_OPT],
674
    "<node_name>", "Alters the parameters of a node"),
675
  'powercycle': (
676
    PowercycleNode, ARGS_ONE_NODE,
677
    [FORCE_OPT, CONFIRM_OPT],
678
    "<node_name>", "Tries to forcefully powercycle a node"),
679
  'remove': (
680
    RemoveNode, ARGS_ONE_NODE, [],
681
    "<node_name>", "Removes a node from the cluster"),
682
  'volumes': (
683
    ListVolumes, [ArgNode()],
684
    [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
685
    "[<node_name>...]", "List logical volumes on node(s)"),
686
  'list-storage': (
687
    ListStorage, ARGS_MANY_NODES,
688
    [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, _STORAGE_TYPE_OPT],
689
    "[<node_name>...]", "List physical volumes on node(s). The available"
690
    " fields are (see the man page for details): %s." %
691
    (utils.CommaJoin(_LIST_STOR_HEADERS))),
692
  'modify-storage': (
693
    ModifyStorage,
694
    [ArgNode(min=1, max=1),
695
     ArgChoice(min=1, max=1, choices=_MODIFIABLE_STORAGE_TYPES),
696
     ArgFile(min=1, max=1)],
697
    [ALLOCATABLE_OPT],
698
    "<node_name> <storage_type> <name>", "Modify storage volume on a node"),
699
  'repair-storage': (
700
    RepairStorage,
701
    [ArgNode(min=1, max=1),
702
     ArgChoice(min=1, max=1, choices=_REPAIRABLE_STORAGE_TYPES),
703
     ArgFile(min=1, max=1)],
704
    [IGNORE_CONSIST_OPT],
705
    "<node_name> <storage_type> <name>",
706
    "Repairs a storage volume on a node"),
707
  'list-tags': (
708
    ListTags, ARGS_ONE_NODE, [],
709
    "<node_name>", "List the tags of the given node"),
710
  'add-tags': (
711
    AddTags, [ArgNode(min=1, max=1), ArgUnknown()], [TAG_SRC_OPT],
712
    "<node_name> tag...", "Add tags to the given node"),
713
  'remove-tags': (
714
    RemoveTags, [ArgNode(min=1, max=1), ArgUnknown()], [TAG_SRC_OPT],
715
    "<node_name> tag...", "Remove tags from the given node"),
716
  }
717

    
718

    
719
if __name__ == '__main__':
720
  sys.exit(GenericMain(commands, override={"tag_type": constants.TAG_NODE}))