Implement conversion from plain to drbd
[ganeti-local] / scripts / gnt-instance
index 0a1e5ee..45444f1 100755 (executable)
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301, USA.
 
+"""Instance related commands"""
 
-# pylint: disable-msg=W0401,W0614
+# pylint: disable-msg=W0401,W0614,C0103
 # W0401: Wildcard import ganeti.cli
 # W0614: Unused import %s from wildcard import (since we need cli)
+# C0103: Invalid name gnt-instance
 
 import sys
 import os
 import itertools
 import simplejson
-import time
 from cStringIO import StringIO
 
 from ganeti.cli import *
-from ganeti import cli
 from ganeti import opcodes
 from ganeti import constants
 from ganeti import utils
@@ -42,7 +42,16 @@ _SHUTDOWN_CLUSTER = "cluster"
 _SHUTDOWN_NODES_BOTH = "nodes"
 _SHUTDOWN_NODES_PRI = "nodes-pri"
 _SHUTDOWN_NODES_SEC = "nodes-sec"
+_SHUTDOWN_NODES_BOTH_BY_TAGS = "nodes-by-tags"
+_SHUTDOWN_NODES_PRI_BY_TAGS = "nodes-pri-by-tags"
+_SHUTDOWN_NODES_SEC_BY_TAGS = "nodes-sec-by-tags"
 _SHUTDOWN_INSTANCES = "instances"
+_SHUTDOWN_INSTANCES_BY_TAGS = "instances-by-tags"
+
+_SHUTDOWN_NODES_TAGS_MODES = (
+    _SHUTDOWN_NODES_BOTH_BY_TAGS,
+    _SHUTDOWN_NODES_PRI_BY_TAGS,
+    _SHUTDOWN_NODES_SEC_BY_TAGS)
 
 
 _VALUE_TRUE = "true"
@@ -76,42 +85,58 @@ def _ExpandMultiNames(mode, names, client=None):
   @raise errors.OpPrereqError: for invalid input parameters
 
   """
+  # pylint: disable-msg=W0142
+
   if client is None:
     client = GetClient()
   if mode == _SHUTDOWN_CLUSTER:
     if names:
-      raise errors.OpPrereqError("Cluster filter mode takes no arguments")
+      raise errors.OpPrereqError("Cluster filter mode takes no arguments",
+                                 errors.ECODE_INVAL)
     idata = client.QueryInstances([], ["name"], False)
     inames = [row[0] for row in idata]
 
   elif mode in (_SHUTDOWN_NODES_BOTH,
                 _SHUTDOWN_NODES_PRI,
-                _SHUTDOWN_NODES_SEC):
-    if not names:
-      raise errors.OpPrereqError("No node names passed")
-    ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
+                _SHUTDOWN_NODES_SEC) + _SHUTDOWN_NODES_TAGS_MODES:
+    if mode in _SHUTDOWN_NODES_TAGS_MODES:
+      if not names:
+        raise errors.OpPrereqError("No node tags passed", errors.ECODE_INVAL)
+      ndata = client.QueryNodes([], ["name", "pinst_list",
+                                     "sinst_list", "tags"], False)
+      ndata = [row for row in ndata if set(row[3]).intersection(names)]
+    else:
+      if not names:
+        raise errors.OpPrereqError("No node names passed", errors.ECODE_INVAL)
+      ndata = client.QueryNodes(names, ["name", "pinst_list", "sinst_list"],
                               False)
+
     ipri = [row[1] for row in ndata]
     pri_names = list(itertools.chain(*ipri))
     isec = [row[2] for row in ndata]
     sec_names = list(itertools.chain(*isec))
-    if mode == _SHUTDOWN_NODES_BOTH:
+    if mode in (_SHUTDOWN_NODES_BOTH, _SHUTDOWN_NODES_BOTH_BY_TAGS):
       inames = pri_names + sec_names
-    elif mode == _SHUTDOWN_NODES_PRI:
+    elif mode in (_SHUTDOWN_NODES_PRI, _SHUTDOWN_NODES_PRI_BY_TAGS):
       inames = pri_names
-    elif mode == _SHUTDOWN_NODES_SEC:
+    elif mode in (_SHUTDOWN_NODES_SEC, _SHUTDOWN_NODES_SEC_BY_TAGS):
       inames = sec_names
     else:
       raise errors.ProgrammerError("Unhandled shutdown type")
-
   elif mode == _SHUTDOWN_INSTANCES:
     if not names:
-      raise errors.OpPrereqError("No instance names passed")
+      raise errors.OpPrereqError("No instance names passed",
+                                 errors.ECODE_INVAL)
     idata = client.QueryInstances(names, ["name"], False)
     inames = [row[0] for row in idata]
-
+  elif mode == _SHUTDOWN_INSTANCES_BY_TAGS:
+    if not names:
+      raise errors.OpPrereqError("No instance tags passed",
+                                 errors.ECODE_INVAL)
+    idata = client.QueryInstances([], ["name", "tags"], False)
+    inames = [row[0] for row in idata if set(row[1]).intersection(names)]
   else:
-    raise errors.OpPrereqError("Unknown mode '%s'" % mode)
+    raise errors.OpPrereqError("Unknown mode '%s'" % mode, errors.ECODE_INVAL)
 
   return inames
 
@@ -172,7 +197,38 @@ def _EnsureInstancesExist(client, names):
   result = client.QueryInstances(names, ["name"], False)
   for orig_name, row in zip(names, result):
     if row[0] is None:
-      raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name)
+      raise errors.OpPrereqError("Instance '%s' does not exist" % orig_name,
+                                 errors.ECODE_NOENT)
+
+
+def GenericManyOps(operation, fn):
+  """Generic multi-instance operations.
+
+  The will return a wrapper that processes the options and arguments
+  given, and uses the passed function to build the opcode needed for
+  the specific operation. Thus all the generic loop/confirmation code
+  is abstracted into this function.
+
+  """
+  def realfn(opts, args):
+    if opts.multi_mode is None:
+      opts.multi_mode = _SHUTDOWN_INSTANCES
+    cl = GetClient()
+    inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
+    if not inames:
+      raise errors.OpPrereqError("Selection filter does not match"
+                                 " any instances", errors.ECODE_INVAL)
+    multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
+    if not (opts.force_multi or not multi_on
+            or _ConfirmOperation(inames, operation)):
+      return 1
+    jex = JobExecutor(verbose=multi_on, cl=cl, opts=opts)
+    for name in inames:
+      op = fn(name, opts)
+      jex.QueueJob(name, op)
+    jex.WaitOrShow(not opts.submit_only)
+    return 0
+  return realfn
 
 
 def ListInstances(opts, args):
@@ -209,12 +265,12 @@ def ListInstances(opts, args):
       "network_port": "Network_port",
       "hv/kernel_path": "Kernel_path",
       "hv/initrd_path": "Initrd_path",
-      "hv/boot_order": "HVM_boot_order",
-      "hv/acpi": "HVM_ACPI",
-      "hv/pae": "HVM_PAE",
-      "hv/cdrom_image_path": "HVM_CDROM_image_path",
-      "hv/nic_type": "HVM_NIC_type",
-      "hv/disk_type": "HVM_Disk_type",
+      "hv/boot_order": "Boot_order",
+      "hv/acpi": "ACPI",
+      "hv/pae": "PAE",
+      "hv/cdrom_image_path": "CDROM_image_path",
+      "hv/nic_type": "NIC_type",
+      "hv/disk_type": "Disk_type",
       "hv/vnc_bind_address": "VNC_bind_address",
       "serial_no": "SerialNo", "hypervisor": "Hypervisor",
       "hvparams": "Hypervisor_parameters",
@@ -226,7 +282,7 @@ def ListInstances(opts, args):
       "nic.count": "NICs", "nic.ips": "NIC_IPs",
       "nic.modes": "NIC_modes", "nic.links": "NIC_links",
       "nic.bridges": "NIC_bridges", "nic.macs": "NIC_MACs",
-      "ctime": "CTime", "mtime": "MTime",
+      "ctime": "CTime", "mtime": "MTime", "uuid": "UUID",
       }
   else:
     headers = None
@@ -282,95 +338,10 @@ def ListInstances(opts, args):
 def AddInstance(opts, args):
   """Add an instance to the cluster.
 
-  @param opts: the command line options selected by the user
-  @type args: list
-  @param args: should contain only one element, the new instance name
-  @rtype: int
-  @return: the desired exit code
+  This is just a wrapper over GenericInstanceCreate.
 
   """
-  instance = args[0]
-
-  (pnode, snode) = SplitNodeOption(opts.node)
-
-  hypervisor = None
-  hvparams = {}
-  if opts.hypervisor:
-    hypervisor, hvparams = opts.hypervisor
-
-  if opts.nics:
-    try:
-      nic_max = max(int(nidx[0])+1 for nidx in opts.nics)
-    except ValueError, err:
-      raise errors.OpPrereqError("Invalid NIC index passed: %s" % str(err))
-    nics = [{}] * nic_max
-    for nidx, ndict in opts.nics:
-      nidx = int(nidx)
-      if not isinstance(ndict, dict):
-        msg = "Invalid nic/%d value: expected dict, got %s" % (nidx, ndict)
-        raise errors.OpPrereqError(msg)
-      nics[nidx] = ndict
-  elif opts.no_nics:
-    # no nics
-    nics = []
-  else:
-    # default of one nic, all auto
-    nics = [{}]
-
-  if opts.disk_template == constants.DT_DISKLESS:
-    if opts.disks or opts.sd_size is not None:
-      raise errors.OpPrereqError("Diskless instance but disk"
-                                 " information passed")
-    disks = []
-  else:
-    if not opts.disks and not opts.sd_size:
-      raise errors.OpPrereqError("No disk information specified")
-    if opts.disks and opts.sd_size is not None:
-      raise errors.OpPrereqError("Please use either the '--disk' or"
-                                 " '-s' option")
-    if opts.sd_size is not None:
-      opts.disks = [(0, {"size": opts.sd_size})]
-    try:
-      disk_max = max(int(didx[0])+1 for didx in opts.disks)
-    except ValueError, err:
-      raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
-    disks = [{}] * disk_max
-    for didx, ddict in opts.disks:
-      didx = int(didx)
-      if not isinstance(ddict, dict):
-        msg = "Invalid disk/%d value: expected dict, got %s" % (didx, ddict)
-        raise errors.OpPrereqError(msg)
-      elif "size" not in ddict:
-        raise errors.OpPrereqError("Missing size for disk %d" % didx)
-      try:
-        ddict["size"] = utils.ParseUnit(ddict["size"])
-      except ValueError, err:
-        raise errors.OpPrereqError("Invalid disk size for disk %d: %s" %
-                                   (didx, err))
-      disks[didx] = ddict
-
-  utils.ForceDictType(opts.beparams, constants.BES_PARAMETER_TYPES)
-  utils.ForceDictType(hvparams, constants.HVS_PARAMETER_TYPES)
-
-  op = opcodes.OpCreateInstance(instance_name=instance,
-                                disks=disks,
-                                disk_template=opts.disk_template,
-                                nics=nics,
-                                mode=constants.INSTANCE_CREATE,
-                                os_type=opts.os, pnode=pnode,
-                                snode=snode,
-                                start=opts.start, ip_check=opts.ip_check,
-                                wait_for_sync=opts.wait_for_sync,
-                                hypervisor=hypervisor,
-                                hvparams=hvparams,
-                                beparams=opts.beparams,
-                                iallocator=opts.iallocator,
-                                file_storage_dir=opts.file_storage_dir,
-                                file_driver=opts.file_driver,
-                                )
-
-  SubmitOrSend(op, opts)
-  return 0
+  return GenericInstanceCreate(constants.INSTANCE_CREATE, opts, args)
 
 
 def BatchCreate(opts, args):
@@ -409,6 +380,7 @@ def BatchCreate(opts, args):
                     "nics": None,
                     "start": True,
                     "ip_check": True,
+                    "name_check": True,
                     "hypervisor": None,
                     "hvparams": {},
                     "file_storage_dir": None,
@@ -426,29 +398,32 @@ def BatchCreate(opts, args):
     for required_field in ('os', 'template'):
       if required_field not in spec:
         raise errors.OpPrereqError('Required field "%s" is missing.' %
-                                   required_field)
+                                   required_field, errors.ECODE_INVAL)
     # Validate special fields
     if spec['primary_node'] is not None:
       if (spec['template'] in constants.DTS_NET_MIRROR and
           spec['secondary_node'] is None):
         raise errors.OpPrereqError('Template requires secondary node, but'
-                                   ' there was no secondary provided.')
+                                   ' there was no secondary provided.',
+                                   errors.ECODE_INVAL)
     elif spec['iallocator'] is None:
       raise errors.OpPrereqError('You have to provide at least a primary_node'
-                                 ' or an iallocator.')
+                                 ' or an iallocator.',
+                                 errors.ECODE_INVAL)
 
     if (spec['hvparams'] and
         not isinstance(spec['hvparams'], dict)):
-      raise errors.OpPrereqError('Hypervisor parameters must be a dict.')
+      raise errors.OpPrereqError('Hypervisor parameters must be a dict.',
+                                 errors.ECODE_INVAL)
 
   json_filename = args[0]
   try:
     instance_data = simplejson.loads(utils.ReadFile(json_filename))
-  except Exception, err:
+  except Exception, err: # pylint: disable-msg=W0703
     ToStderr("Can't parse the instance definition file: %s" % str(err))
     return 1
 
-  jex = JobExecutor()
+  jex = JobExecutor(opts=opts)
 
   # Iterate over the instances and do:
   #  * Populate the specs with default value
@@ -466,10 +441,10 @@ def BatchCreate(opts, args):
     for elem in specs['disk_size']:
       try:
         size = utils.ParseUnit(elem)
-      except ValueError, err:
+      except (TypeError, ValueError), err:
         raise errors.OpPrereqError("Invalid disk size '%s' for"
                                    " instance %s: %s" %
-                                   (elem, name, err))
+                                   (elem, name, err), errors.ECODE_INVAL)
       disks.append({"size": size})
 
     utils.ForceDictType(specs['backend'], constants.BES_PARAMETER_TYPES)
@@ -484,7 +459,8 @@ def BatchCreate(opts, args):
 
     if specs['nics'] is not None and tmp_nics:
       raise errors.OpPrereqError("'nics' list incompatible with using"
-                                 " individual nic fields as well")
+                                 " individual nic fields as well",
+                                 errors.ECODE_INVAL)
     elif specs['nics'] is not None:
       tmp_nics = specs['nics']
     elif not tmp_nics:
@@ -495,11 +471,13 @@ def BatchCreate(opts, args):
                                   disk_template=specs['template'],
                                   mode=constants.INSTANCE_CREATE,
                                   os_type=specs['os'],
+                                  force_variant=opts.force_variant,
                                   pnode=specs['primary_node'],
                                   snode=specs['secondary_node'],
                                   nics=tmp_nics,
                                   start=specs['start'],
                                   ip_check=specs['ip_check'],
+                                  name_check=specs['name_check'],
                                   wait_for_sync=True,
                                   iallocator=specs['iallocator'],
                                   hypervisor=hypervisor,
@@ -532,12 +510,14 @@ def ReinstallInstance(opts, args):
 
   inames = _ExpandMultiNames(opts.multi_mode, args)
   if not inames:
-    raise errors.OpPrereqError("Selection filter does not match any instances")
+    raise errors.OpPrereqError("Selection filter does not match any instances",
+                               errors.ECODE_INVAL)
 
   # second, if requested, ask for an OS
   if opts.select_os is True:
-    op = opcodes.OpDiagnoseOS(output_fields=["name", "valid"], names=[])
-    result = SubmitOpCode(op)
+    op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"],
+                              names=[])
+    result = SubmitOpCode(op, opts=opts)
 
     if not result:
       ToStdout("Can't get the OS list")
@@ -546,10 +526,12 @@ def ReinstallInstance(opts, args):
     ToStdout("Available OS templates:")
     number = 0
     choices = []
-    for entry in result:
-      ToStdout("%3s: %s", number, entry[0])
-      choices.append(("%s" % number, entry[0], entry[0]))
-      number = number + 1
+    for (name, valid, variants) in result:
+      if valid:
+        for entry in CalculateOSNames(name, variants):
+          ToStdout("%3s: %s", number, entry)
+          choices.append(("%s" % number, entry, entry))
+          number += 1
 
     choices.append(('x', 'exit', 'Exit gnt-instance reinstall'))
     selected = AskUser("Enter OS template number (or x to abort):",
@@ -578,10 +560,11 @@ def ReinstallInstance(opts, args):
       if not AskUser(usertext):
         return 1
 
-  jex = JobExecutor(verbose=multi_on)
+  jex = JobExecutor(verbose=multi_on, opts=opts)
   for instance_name in inames:
     op = opcodes.OpReinstallInstance(instance_name=instance_name,
-                                     os_type=os_name)
+                                     os_type=os_name,
+                                     force_variant=opts.force_variant)
     jex.QueueJob(instance_name, op)
 
   jex.WaitOrShow(not opts.submit_only)
@@ -613,7 +596,8 @@ def RemoveInstance(opts, args):
       return 1
 
   op = opcodes.OpRemoveInstance(instance_name=instance_name,
-                                ignore_failures=opts.ignore_failures)
+                                ignore_failures=opts.ignore_failures,
+                                shutdown_timeout=opts.shutdown_timeout)
   SubmitOrSend(op, opts, cl=cl)
   return 0
 
@@ -631,7 +615,7 @@ def RenameInstance(opts, args):
   """
   op = opcodes.OpRenameInstance(instance_name=args[0],
                                 new_name=args[1],
-                                ignore_ip=opts.ignore_ip)
+                                ignore_ip=not opts.ip_check)
   SubmitOrSend(op, opts)
   return 0
 
@@ -720,8 +704,9 @@ def GrowDisk(opts, args):
   disk = args[1]
   try:
     disk = int(disk)
-  except ValueError, err:
-    raise errors.OpPrereqError("Invalid disk index: %s" % str(err))
+  except (TypeError, ValueError), err:
+    raise errors.OpPrereqError("Invalid disk index: %s" % str(err),
+                               errors.ECODE_INVAL)
   amount = utils.ParseUnit(args[2])
   op = opcodes.OpGrowDisk(instance_name=instance, disk=disk, amount=amount,
                           wait_for_sync=opts.wait_for_sync)
@@ -729,109 +714,57 @@ def GrowDisk(opts, args):
   return 0
 
 
-def StartupInstance(opts, args):
+def _StartupInstance(name, opts):
   """Startup instances.
 
-  Depending on the options given, this will start one or more
-  instances.
+  This returns the opcode to start an instance, and its decorator will
+  wrap this into a loop starting all desired instances.
 
+  @param name: the name of the instance to act on
   @param opts: the command line options selected by the user
-  @type args: list
-  @param args: the instance or node names based on which we
-      create the final selection (in conjunction with the
-      opts argument)
-  @rtype: int
-  @return: the desired exit code
+  @return: the opcode needed for the operation
 
   """
-  cl = GetClient()
-  if opts.multi_mode is None:
-    opts.multi_mode = _SHUTDOWN_INSTANCES
-  inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
-  if not inames:
-    raise errors.OpPrereqError("Selection filter does not match any instances")
-  multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
-  if not (opts.force_multi or not multi_on
-          or _ConfirmOperation(inames, "startup")):
-    return 1
-  jex = cli.JobExecutor(verbose=multi_on, cl=cl)
-  for name in inames:
-    op = opcodes.OpStartupInstance(instance_name=name,
-                                   force=opts.force)
-    # do not add these parameters to the opcode unless they're defined
-    if opts.hvparams:
-      op.hvparams = opts.hvparams
-    if opts.beparams:
-      op.beparams = opts.beparams
-    jex.QueueJob(name, op)
-  jex.WaitOrShow(not opts.submit_only)
-  return 0
+  op = opcodes.OpStartupInstance(instance_name=name,
+                                 force=opts.force)
+  # do not add these parameters to the opcode unless they're defined
+  if opts.hvparams:
+    op.hvparams = opts.hvparams
+  if opts.beparams:
+    op.beparams = opts.beparams
+  return op
 
 
-def RebootInstance(opts, args):
+def _RebootInstance(name, opts):
   """Reboot instance(s).
 
-  Depending on the parameters given, this will reboot one or more
-  instances.
+  This returns the opcode to reboot an instance, and its decorator
+  will wrap this into a loop rebooting all desired instances.
 
+  @param name: the name of the instance to act on
   @param opts: the command line options selected by the user
-  @type args: list
-  @param args: the instance or node names based on which we
-      create the final selection (in conjunction with the
-      opts argument)
-  @rtype: int
-  @return: the desired exit code
+  @return: the opcode needed for the operation
 
   """
-  cl = GetClient()
-  if opts.multi_mode is None:
-    opts.multi_mode = _SHUTDOWN_INSTANCES
-  inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
-  if not inames:
-    raise errors.OpPrereqError("Selection filter does not match any instances")
-  multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
-  if not (opts.force_multi or not multi_on
-          or _ConfirmOperation(inames, "reboot")):
-    return 1
-  jex = JobExecutor(verbose=multi_on, cl=cl)
-  for name in inames:
-    op = opcodes.OpRebootInstance(instance_name=name,
+  return opcodes.OpRebootInstance(instance_name=name,
                                   reboot_type=opts.reboot_type,
-                                  ignore_secondaries=opts.ignore_secondaries)
-    jex.QueueJob(name, op)
-  jex.WaitOrShow(not opts.submit_only)
-  return 0
+                                  ignore_secondaries=opts.ignore_secondaries,
+                                  shutdown_timeout=opts.shutdown_timeout)
 
 
-def ShutdownInstance(opts, args):
+def _ShutdownInstance(name, opts):
   """Shutdown an instance.
 
+  This returns the opcode to shutdown an instance, and its decorator
+  will wrap this into a loop shutting down all desired instances.
+
+  @param name: the name of the instance to act on
   @param opts: the command line options selected by the user
-  @type args: list
-  @param args: the instance or node names based on which we
-      create the final selection (in conjunction with the
-      opts argument)
-  @rtype: int
-  @return: the desired exit code
+  @return: the opcode needed for the operation
 
   """
-  cl = GetClient()
-  if opts.multi_mode is None:
-    opts.multi_mode = _SHUTDOWN_INSTANCES
-  inames = _ExpandMultiNames(opts.multi_mode, args, client=cl)
-  if not inames:
-    raise errors.OpPrereqError("Selection filter does not match any instances")
-  multi_on = opts.multi_mode != _SHUTDOWN_INSTANCES or len(inames) > 1
-  if not (opts.force_multi or not multi_on
-          or _ConfirmOperation(inames, "shutdown")):
-    return 1
-
-  jex = cli.JobExecutor(verbose=multi_on, cl=cl)
-  for name in inames:
-    op = opcodes.OpShutdownInstance(instance_name=name)
-    jex.QueueJob(name, op)
-  jex.WaitOrShow(not opts.submit_only)
-  return 0
+  return opcodes.OpShutdownInstance(instance_name=name,
+                                    timeout=opts.timeout)
 
 
 def ReplaceDisks(opts, args):
@@ -844,21 +777,21 @@ def ReplaceDisks(opts, args):
   @return: the desired exit code
 
   """
-  instance_name = args[0]
-  new_2ndary = opts.new_secondary
+  new_2ndary = opts.dst_node
   iallocator = opts.iallocator
   if opts.disks is None:
     disks = []
   else:
     try:
       disks = [int(i) for i in opts.disks.split(",")]
-    except ValueError, err:
-      raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err))
+    except (TypeError, ValueError), err:
+      raise errors.OpPrereqError("Invalid disk index passed: %s" % str(err),
+                                 errors.ECODE_INVAL)
   cnt = [opts.on_primary, opts.on_secondary, opts.auto,
          new_2ndary is not None, iallocator is not None].count(True)
   if cnt != 1:
     raise errors.OpPrereqError("One and only one of the -p, -s, -a, -n and -i"
-                               " options must be passed")
+                               " options must be passed", errors.ECODE_INVAL)
   elif opts.on_primary:
     mode = constants.REPLACE_DISK_PRI
   elif opts.on_secondary:
@@ -867,14 +800,15 @@ def ReplaceDisks(opts, args):
     mode = constants.REPLACE_DISK_AUTO
     if disks:
       raise errors.OpPrereqError("Cannot specify disks when using automatic"
-                                 " mode")
+                                 " mode", errors.ECODE_INVAL)
   elif new_2ndary is not None or iallocator is not None:
     # replace secondary
     mode = constants.REPLACE_DISK_CHG
 
   op = opcodes.OpReplaceDisks(instance_name=args[0], disks=disks,
                               remote_node=new_2ndary, mode=mode,
-                              iallocator=iallocator)
+                              iallocator=iallocator,
+                              early_release=opts.early_release)
   SubmitOrSend(op, opts)
   return 0
 
@@ -906,7 +840,8 @@ def FailoverInstance(opts, args):
       return 1
 
   op = opcodes.OpFailoverInstance(instance_name=instance_name,
-                                  ignore_consistency=opts.ignore_consistency)
+                                  ignore_consistency=opts.ignore_consistency,
+                                  shutdown_timeout=opts.shutdown_timeout)
   SubmitOrSend(op, opts, cl=cl)
   return 0
 
@@ -945,7 +880,7 @@ def MigrateInstance(opts, args):
 
   op = opcodes.OpMigrateInstance(instance_name=instance_name, live=opts.live,
                                  cleanup=opts.cleanup)
-  SubmitOpCode(op, cl=cl)
+  SubmitOpCode(op, cl=cl, opts=opts)
   return 0
 
 
@@ -971,7 +906,8 @@ def MoveInstance(opts, args):
       return 1
 
   op = opcodes.OpMoveInstance(instance_name=instance_name,
-                              target_node=opts.node)
+                              target_node=opts.node,
+                              shutdown_timeout=opts.shutdown_timeout)
   SubmitOrSend(op, opts, cl=cl)
   return 0
 
@@ -989,7 +925,7 @@ def ConnectToInstanceConsole(opts, args):
   instance_name = args[0]
 
   op = opcodes.OpConnectConsole(instance_name=instance_name)
-  cmd = SubmitOpCode(op)
+  cmd = SubmitOpCode(op, opts=opts)
 
   if opts.show_command:
     ToStdout("%s", utils.ShellQuoteArgs(cmd))
@@ -999,7 +935,7 @@ def ConnectToInstanceConsole(opts, args):
     finally:
       ToStderr("Can't run console command %s with arguments:\n'%s'",
                cmd[0], " ".join(cmd))
-      os._exit(1)
+      os._exit(1) # pylint: disable-msg=W0212
 
 
 def _FormatLogicalID(dev_type, logical_id):
@@ -1187,7 +1123,7 @@ def ShowInstanceConfig(opts, args):
 
   retcode = 0
   op = opcodes.OpQueryInstanceData(instances=args, static=opts.static)
-  result = SubmitOpCode(op)
+  result = SubmitOpCode(op, opts=opts)
   if not result:
     ToStdout("No instances.")
     return 1
@@ -1197,6 +1133,7 @@ def ShowInstanceConfig(opts, args):
   for instance_name in result:
     instance = result[instance_name]
     buf.write("Instance name: %s\n" % instance["name"])
+    buf.write("UUID: %s\n" % instance["uuid"])
     buf.write("Serial number: %s\n" % instance["serial_no"])
     buf.write("Creation time: %s\n" % utils.FormatTime(instance["ctime"]))
     buf.write("Modification time: %s\n" % utils.FormatTime(instance["mtime"]))
@@ -1208,7 +1145,7 @@ def ShowInstanceConfig(opts, args):
     ##          instance["auto_balance"])
     buf.write("  Nodes:\n")
     buf.write("    - primary: %s\n" % instance["pnode"])
-    buf.write("    - secondaries: %s\n" % ", ".join(instance["snodes"]))
+    buf.write("    - secondaries: %s\n" % utils.CommaJoin(instance["snodes"]))
     buf.write("  Operating system: %s\n" % instance["os"])
     if instance.has_key("network_port"):
       buf.write("  Allocated network port: %s\n" % instance["network_port"])
@@ -1246,7 +1183,7 @@ def ShowInstanceConfig(opts, args):
     buf.write("    - memory: %dMiB\n" %
               instance["be_actual"][constants.BE_MEMORY])
     buf.write("    - NICs:\n")
-    for idx, (mac, ip, mode, link) in enumerate(instance["nics"]):
+    for idx, (ip, mac, mode, link) in enumerate(instance["nics"]):
       buf.write("      - nic/%d: MAC: %s, IP: %s, mode: %s, link: %s\n" %
                 (idx, mac, ip, mode, link))
     buf.write("  Disks:\n")
@@ -1270,7 +1207,7 @@ def SetInstanceParams(opts, args):
   @return: the desired exit code
 
   """
-  if not (opts.nics or opts.disks or
+  if not (opts.nics or opts.disks or opts.disk_template or
           opts.hvparams or opts.beparams):
     ToStderr("Please give at least one of the parameters.")
     return 1
@@ -1295,23 +1232,33 @@ def SetInstanceParams(opts, args):
     try:
       nic_op = int(nic_op)
       opts.nics[idx] = (nic_op, nic_dict)
-    except ValueError:
+    except (TypeError, ValueError):
       pass
 
   for idx, (disk_op, disk_dict) in enumerate(opts.disks):
     try:
       disk_op = int(disk_op)
       opts.disks[idx] = (disk_op, disk_dict)
-    except ValueError:
+    except (TypeError, ValueError):
       pass
     if disk_op == constants.DDM_ADD:
       if 'size' not in disk_dict:
-        raise errors.OpPrereqError("Missing required parameter 'size'")
+        raise errors.OpPrereqError("Missing required parameter 'size'",
+                                   errors.ECODE_INVAL)
       disk_dict['size'] = utils.ParseUnit(disk_dict['size'])
 
+  if (opts.disk_template and
+      opts.disk_template in constants.DTS_NET_MIRROR and
+      not opts.node):
+    ToStderr("Changing the disk template to a mirrored one requires"
+             " specifying a secondary node")
+    return 1
+
   op = opcodes.OpSetInstanceParams(instance_name=args[0],
                                    nics=opts.nics,
                                    disks=opts.disks,
+                                   disk_template=opts.disk_template,
+                                   remote_node=opts.node,
                                    hvparams=opts.hvparams,
                                    beparams=opts.beparams,
                                    force=opts.force)
@@ -1323,7 +1270,7 @@ def SetInstanceParams(opts, args):
     ToStdout("Modified instance %s", args[0])
     for param, data in result:
       ToStdout(" - %-5s -> %s", param, data)
-    ToStdout("Please don't forget that these parameters take effect"
+    ToStdout("Please don't forget that most parameters take effect"
              " only at the next start of the instance.")
   return 0
 
@@ -1354,186 +1301,170 @@ m_inst_opt = cli_option("--instance", dest="multi_mode",
                         help="Filter by instance name [default]",
                         const=_SHUTDOWN_INSTANCES, action="store_const")
 
+m_node_tags_opt = cli_option("--node-tags", dest="multi_mode",
+                             help="Filter by node tag",
+                             const=_SHUTDOWN_NODES_BOTH_BY_TAGS,
+                             action="store_const")
+
+m_pri_node_tags_opt = cli_option("--pri-node-tags", dest="multi_mode",
+                                 help="Filter by primary node tag",
+                                 const=_SHUTDOWN_NODES_PRI_BY_TAGS,
+                                 action="store_const")
+
+m_sec_node_tags_opt = cli_option("--sec-node-tags", dest="multi_mode",
+                                 help="Filter by secondary node tag",
+                                 const=_SHUTDOWN_NODES_SEC_BY_TAGS,
+                                 action="store_const")
+
+m_inst_tags_opt = cli_option("--tags", dest="multi_mode",
+                             help="Filter by instance tag",
+                             const=_SHUTDOWN_INSTANCES_BY_TAGS,
+                             action="store_const")
 
 # this is defined separately due to readability only
 add_opts = [
-  DEBUG_OPT,
-  NODE_PLACEMENT_OPT,
-  OS_OPT,
   BACKEND_OPT,
-  DISK_TEMPLATE_OPT,
-  OS_SIZE_OPT,
   DISK_OPT,
-  NET_OPT,
-  NONICS_OPT,
-  NWSYNC_OPT,
-  NOSTART_OPT,
-  NOIPCHECK_OPT,
+  DISK_TEMPLATE_OPT,
   FILESTORE_DIR_OPT,
   FILESTORE_DRIVER_OPT,
-  IALLOCATOR_OPT,
   HYPERVISOR_OPT,
+  IALLOCATOR_OPT,
+  NET_OPT,
+  NODE_PLACEMENT_OPT,
+  NOIPCHECK_OPT,
+  NONAMECHECK_OPT,
+  NONICS_OPT,
+  NOSTART_OPT,
+  NWSYNC_OPT,
+  OS_OPT,
+  FORCE_VARIANT_OPT,
+  OS_SIZE_OPT,
   SUBMIT_OPT,
   ]
 
 commands = {
-  'add': (AddInstance, [ArgHost(min=1, max=1)], add_opts,
-          "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
-          "Creates and adds a new instance to the cluster"),
-  'batch-create': (BatchCreate, [ArgFile(min=1, max=1)],
-                   [DEBUG_OPT],
-                   "<instances_file.json>",
-                   "Create a bunch of instances based on specs in the file."),
-  'console': (ConnectToInstanceConsole, ARGS_ONE_INSTANCE,
-              [DEBUG_OPT, SHOWCMD_OPT],
-              "[--show-cmd] <instance>",
-              "Opens a console on the specified instance"),
-  'failover': (FailoverInstance, ARGS_ONE_INSTANCE,
-               [DEBUG_OPT, FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT],
-               "[-f] <instance>",
-               "Stops the instance and starts it on the backup node, using"
-               " the remote mirror (only for instances of type drbd)"),
-  'migrate': (MigrateInstance, ARGS_ONE_INSTANCE,
-               [DEBUG_OPT, FORCE_OPT, NONLIVE_OPT, CLEANUP_OPT],
-               "[-f] <instance>",
-               "Migrate instance to its secondary node"
-               " (only for instances of type drbd)"),
-  'move': (MoveInstance, ARGS_ONE_INSTANCE,
-           [DEBUG_OPT, FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT],
-           "[-f] <instance>",
-           "Move instance to an arbitrary node"
-           " (only for instances of type file and lv)"),
-  'info': (ShowInstanceConfig, ARGS_MANY_INSTANCES,
-           [DEBUG_OPT, STATIC_OPT, ALL_OPT],
-           "[-s] {--all | <instance>...}",
-           "Show information on the specified instance(s)"),
-  'list': (ListInstances, ARGS_MANY_INSTANCES,
-           [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
-           "[<instance>...]",
-           "Lists the instances and their status. The available fields are"
-           " (see the man page for details): status, oper_state, oper_ram,"
-           " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
-           " ip, mac, mode, link, sda_size, sdb_size, vcpus, serial_no,"
-           " hypervisor."
-           " The default field"
-           " list is (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
-           ),
-  'reinstall': (ReinstallInstance, [ArgInstance(min=1)],
-                [DEBUG_OPT, FORCE_OPT, OS_OPT,
-                 m_force_multi,
-                 m_node_opt, m_pri_node_opt, m_sec_node_opt,
-                 m_clust_opt, m_inst_opt,
-                 cli_option("--select-os", dest="select_os",
-                            action="store_true", default=False,
-                            help="Interactive OS reinstall, lists available"
-                            " OS templates for selection"),
-                 SUBMIT_OPT,
-                 ],
-                "[-f] <instance>", "Reinstall a stopped instance"),
-  'remove': (RemoveInstance, ARGS_ONE_INSTANCE,
-             [DEBUG_OPT, FORCE_OPT,
-              cli_option("--ignore-failures", dest="ignore_failures",
-                         action="store_true", default=False,
-                         help=("Remove the instance from the cluster even"
-                               " if there are failures during the removal"
-                               " process (shutdown, disk removal, etc.)")),
-              SUBMIT_OPT,
-              ],
-             "[-f] <instance>", "Shuts down the instance and removes it"),
-  'rename': (RenameInstance,
-             [ArgInstance(min=1, max=1), ArgHost(min=1, max=1)],
-             [DEBUG_OPT, NOIPCHECK_OPT, SUBMIT_OPT],
-             "<instance> <new_name>", "Rename the instance"),
-  'replace-disks': (ReplaceDisks, ARGS_ONE_INSTANCE,
-                    [DEBUG_OPT,
-                     cli_option("-n", "--new-secondary", dest="new_secondary",
-                                help=("New secondary node (for secondary"
-                                      " node change)"), metavar="NODE",
-                                default=None,
-                                completion_suggest=OPT_COMPL_ONE_NODE),
-                     cli_option("-p", "--on-primary", dest="on_primary",
-                                default=False, action="store_true",
-                                help=("Replace the disk(s) on the primary"
-                                      " node (only for the drbd template)")),
-                     cli_option("-s", "--on-secondary", dest="on_secondary",
-                                default=False, action="store_true",
-                                help=("Replace the disk(s) on the secondary"
-                                      " node (only for the drbd template)")),
-                     cli_option("-a", "--auto", dest="auto",
-                                default=False, action="store_true",
-                                help=("Automatically replace faulty disks"
-                                      " (only for the drbd template)")),
-                     DISKIDX_OPT,
-                     IALLOCATOR_OPT,
-                     SUBMIT_OPT,
-                     ],
-                    "[-s|-p|-n NODE|-I NAME] <instance>",
-                    "Replaces all disks for the instance"),
-  'modify': (SetInstanceParams, ARGS_ONE_INSTANCE,
-             [BACKEND_OPT, DEBUG_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT,
-              NET_OPT, SUBMIT_OPT],
-             "<instance>", "Alters the parameters of an instance"),
-  'shutdown': (ShutdownInstance, [ArgInstance(min=1)],
-               [DEBUG_OPT, m_node_opt, m_pri_node_opt, m_sec_node_opt,
-                m_clust_opt, m_inst_opt, m_force_multi,
-                SUBMIT_OPT,
-                ],
-               "<instance>", "Stops an instance"),
-  'startup': (StartupInstance, [ArgInstance(min=1)],
-              [DEBUG_OPT, FORCE_OPT, m_force_multi,
-               m_node_opt, m_pri_node_opt, m_sec_node_opt,
-               m_clust_opt, m_inst_opt,
-               SUBMIT_OPT,
-               HVOPTS_OPT,
-               BACKEND_OPT,
-               ],
-              "<instance>", "Starts an instance"),
-  'reboot': (RebootInstance, [ArgInstance(min=1)],
-              [DEBUG_OPT, m_force_multi,
-               cli_option("-t", "--type", dest="reboot_type",
-                          help="Type of reboot: soft/hard/full",
-                          default=constants.INSTANCE_REBOOT_HARD,
-                          metavar="<REBOOT>",
-                          choices=list(constants.REBOOT_TYPES)),
-               cli_option("--ignore-secondaries", dest="ignore_secondaries",
-                          default=False, action="store_true",
-                          help="Ignore errors from secondaries"),
-               m_node_opt, m_pri_node_opt, m_sec_node_opt,
-               m_clust_opt, m_inst_opt,
-               SUBMIT_OPT,
-               ],
-            "<instance>", "Reboots an instance"),
-  'activate-disks': (ActivateDisks, ARGS_ONE_INSTANCE,
-                     [DEBUG_OPT, SUBMIT_OPT,
-                      cli_option("--ignore-size", dest="ignore_size",
-                                 default=False, action="store_true",
-                                 help="Ignore current recorded size"
-                                 " (useful for forcing activation when"
-                                 " the recorded size is wrong)"),
-                      ],
-                     "<instance>",
-                     "Activate an instance's disks"),
-  'deactivate-disks': (DeactivateDisks, ARGS_ONE_INSTANCE,
-                       [DEBUG_OPT, SUBMIT_OPT],
-                       "<instance>",
-                       "Deactivate an instance's disks"),
-  'recreate-disks': (RecreateDisks, ARGS_ONE_INSTANCE,
-                     [DEBUG_OPT, SUBMIT_OPT, DISKIDX_OPT],
-                     "<instance>",
-                     "Recreate an instance's disks"),
-  'grow-disk': (GrowDisk,
-                [ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1),
-                 ArgUnknown(min=1, max=1)],
-                [DEBUG_OPT, SUBMIT_OPT, NWSYNC_OPT],
-                "<instance> <disk> <size>", "Grow an instance's disk"),
-  'list-tags': (ListTags, ARGS_ONE_INSTANCE, [DEBUG_OPT],
-                "<instance_name>", "List the tags of the given instance"),
-  'add-tags': (AddTags, [ArgInstance(min=1, max=1), ArgUnknown()],
-               [DEBUG_OPT, TAG_SRC_OPT],
-               "<instance_name> tag...", "Add tags to the given instance"),
-  'remove-tags': (RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()],
-                  [DEBUG_OPT, TAG_SRC_OPT],
-                  "<instance_name> tag...", "Remove tags from given instance"),
+  'add': (
+    AddInstance, [ArgHost(min=1, max=1)], add_opts,
+    "[...] -t disk-type -n node[:secondary-node] -o os-type <name>",
+    "Creates and adds a new instance to the cluster"),
+  'batch-create': (
+    BatchCreate, [ArgFile(min=1, max=1)], [],
+    "<instances.json>",
+    "Create a bunch of instances based on specs in the file."),
+  'console': (
+    ConnectToInstanceConsole, ARGS_ONE_INSTANCE,
+    [SHOWCMD_OPT],
+    "[--show-cmd] <instance>", "Opens a console on the specified instance"),
+  'failover': (
+    FailoverInstance, ARGS_ONE_INSTANCE,
+    [FORCE_OPT, IGNORE_CONSIST_OPT, SUBMIT_OPT, SHUTDOWN_TIMEOUT_OPT],
+    "[-f] <instance>", "Stops the instance and starts it on the backup node,"
+    " using the remote mirror (only for instances of type drbd)"),
+  'migrate': (
+    MigrateInstance, ARGS_ONE_INSTANCE,
+    [FORCE_OPT, NONLIVE_OPT, CLEANUP_OPT],
+    "[-f] <instance>", "Migrate instance to its secondary node"
+    " (only for instances of type drbd)"),
+  'move': (
+    MoveInstance, ARGS_ONE_INSTANCE,
+    [FORCE_OPT, SUBMIT_OPT, SINGLE_NODE_OPT, SHUTDOWN_TIMEOUT_OPT],
+    "[-f] <instance>", "Move instance to an arbitrary node"
+    " (only for instances of type file and lv)"),
+  'info': (
+    ShowInstanceConfig, ARGS_MANY_INSTANCES,
+    [STATIC_OPT, ALL_OPT],
+    "[-s] {--all | <instance>...}",
+    "Show information on the specified instance(s)"),
+  'list': (
+    ListInstances, ARGS_MANY_INSTANCES,
+    [NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, SYNC_OPT],
+    "[<instance>...]",
+    "Lists the instances and their status. The available fields are"
+    " (see the man page for details): status, oper_state, oper_ram,"
+    " name, os, pnode, snodes, admin_state, admin_ram, disk_template,"
+    " ip, mac, nic_mode, nic_link, sda_size, sdb_size, vcpus, serial_no,"
+    " nic.count, nic.mac/N, nic.ip/N, nic.mode/N, nic.link/N,"
+    " nic.macs, nic.ips, nic.modes, nic.links,"
+    " disk.count, disk.size/N, disk.sizes,"
+    " hv/NAME, be/memory, be/vcpus, be/auto_balance,"
+    " hypervisor."
+    " The default field"
+    " list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS),
+    ),
+  'reinstall': (
+    ReinstallInstance, [ArgInstance()],
+    [FORCE_OPT, OS_OPT, FORCE_VARIANT_OPT, m_force_multi, m_node_opt,
+     m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, m_node_tags_opt,
+     m_pri_node_tags_opt, m_sec_node_tags_opt, m_inst_tags_opt, SELECT_OS_OPT,
+     SUBMIT_OPT],
+    "[-f] <instance>", "Reinstall a stopped instance"),
+  'remove': (
+    RemoveInstance, ARGS_ONE_INSTANCE,
+    [FORCE_OPT, SHUTDOWN_TIMEOUT_OPT, IGNORE_FAILURES_OPT, SUBMIT_OPT],
+    "[-f] <instance>", "Shuts down the instance and removes it"),
+  'rename': (
+    RenameInstance,
+    [ArgInstance(min=1, max=1), ArgHost(min=1, max=1)],
+    [NOIPCHECK_OPT, SUBMIT_OPT],
+    "<instance> <new_name>", "Rename the instance"),
+  'replace-disks': (
+    ReplaceDisks, ARGS_ONE_INSTANCE,
+    [AUTO_REPLACE_OPT, DISKIDX_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT,
+     NEW_SECONDARY_OPT, ON_PRIMARY_OPT, ON_SECONDARY_OPT, SUBMIT_OPT],
+    "[-s|-p|-n NODE|-I NAME] <instance>",
+    "Replaces all disks for the instance"),
+  'modify': (
+    SetInstanceParams, ARGS_ONE_INSTANCE,
+    [BACKEND_OPT, DISK_OPT, FORCE_OPT, HVOPTS_OPT, NET_OPT, SUBMIT_OPT,
+     DISK_TEMPLATE_OPT, SINGLE_NODE_OPT],
+    "<instance>", "Alters the parameters of an instance"),
+  'shutdown': (
+    GenericManyOps("shutdown", _ShutdownInstance), [ArgInstance()],
+    [m_node_opt, m_pri_node_opt, m_sec_node_opt, m_clust_opt,
+     m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
+     m_inst_tags_opt, m_inst_opt, m_force_multi, TIMEOUT_OPT, SUBMIT_OPT],
+    "<instance>", "Stops an instance"),
+  'startup': (
+    GenericManyOps("startup", _StartupInstance), [ArgInstance()],
+    [FORCE_OPT, m_force_multi, m_node_opt, m_pri_node_opt, m_sec_node_opt,
+     m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
+     m_inst_tags_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT, HVOPTS_OPT,
+     BACKEND_OPT],
+    "<instance>", "Starts an instance"),
+  'reboot': (
+    GenericManyOps("reboot", _RebootInstance), [ArgInstance()],
+    [m_force_multi, REBOOT_TYPE_OPT, IGNORE_SECONDARIES_OPT, m_node_opt,
+     m_pri_node_opt, m_sec_node_opt, m_clust_opt, m_inst_opt, SUBMIT_OPT,
+     m_node_tags_opt, m_pri_node_tags_opt, m_sec_node_tags_opt,
+     m_inst_tags_opt, SHUTDOWN_TIMEOUT_OPT],
+    "<instance>", "Reboots an instance"),
+  'activate-disks': (
+    ActivateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT, IGNORE_SIZE_OPT],
+    "<instance>", "Activate an instance's disks"),
+  'deactivate-disks': (
+    DeactivateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT],
+    "<instance>", "Deactivate an instance's disks"),
+  'recreate-disks': (
+    RecreateDisks, ARGS_ONE_INSTANCE, [SUBMIT_OPT, DISKIDX_OPT],
+    "<instance>", "Recreate an instance's disks"),
+  'grow-disk': (
+    GrowDisk,
+    [ArgInstance(min=1, max=1), ArgUnknown(min=1, max=1),
+     ArgUnknown(min=1, max=1)],
+    [SUBMIT_OPT, NWSYNC_OPT],
+    "<instance> <disk> <size>", "Grow an instance's disk"),
+  'list-tags': (
+    ListTags, ARGS_ONE_INSTANCE, [],
+    "<instance_name>", "List the tags of the given instance"),
+  'add-tags': (
+    AddTags, [ArgInstance(min=1, max=1), ArgUnknown()],
+    [TAG_SRC_OPT],
+    "<instance_name> tag...", "Add tags to the given instance"),
+  'remove-tags': (
+    RemoveTags, [ArgInstance(min=1, max=1), ArgUnknown()],
+    [TAG_SRC_OPT],
+    "<instance_name> tag...", "Remove tags from given instance"),
   }
 
 #: dictionary with aliases for commands