4 # Copyright (C) 2010, 2011, 2012 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
21 """Node group related commands"""
23 # pylint: disable=W0401,W0614
24 # W0401: Wildcard import ganeti.cli
25 # W0614: Unused import %s from wildcard import (since we need cli)
27 from ganeti.cli import *
28 from ganeti import constants
29 from ganeti import objects
30 from ganeti import opcodes
31 from ganeti import utils
34 #: default list of fields for L{ListGroups}
35 _LIST_DEF_FIELDS = ["name", "node_cnt", "pinst_cnt", "alloc_policy", "ndparams"]
38 _ENV_OVERRIDE = frozenset(["list"])
41 def AddGroup(opts, args):
42 """Add a node group to the cluster.
44 @param opts: the command line options selected by the user
46 @param args: a list of length 1 with the name of the group to create
48 @return: the desired exit code
52 objects.CreateIPolicyFromOpts(ispecs_mem_size=opts.ispecs_mem_size,
53 ispecs_cpu_count=opts.ispecs_cpu_count,
54 ispecs_disk_count=opts.ispecs_disk_count,
55 ispecs_disk_size=opts.ispecs_disk_size,
56 ispecs_nic_count=opts.ispecs_nic_count,
60 diskparams = dict(opts.diskparams)
63 disk_state = utils.FlatToDict(opts.disk_state)
66 hv_state = dict(opts.hv_state)
68 op = opcodes.OpGroupAdd(group_name=group_name, ndparams=opts.ndparams,
69 alloc_policy=opts.alloc_policy,
70 diskparams=diskparams, ipolicy=ipolicy,
72 disk_state=disk_state)
73 SubmitOpCode(op, opts=opts)
76 def AssignNodes(opts, args):
77 """Assign nodes to a group.
79 @param opts: the command line options selected by the user
81 @param args: args[0]: group to assign nodes to; args[1:]: nodes to assign
83 @return: the desired exit code
89 op = opcodes.OpGroupAssignNodes(group_name=group_name, nodes=node_names,
91 SubmitOpCode(op, opts=opts)
95 """Format dict data into command-line format.
97 @param data: The input dict to be formatted
98 @return: The formatted dict
104 return utils.CommaJoin(["%s=%s" % (key, value)
105 for key, value in data.items()])
108 def ListGroups(opts, args):
109 """List node groups and their properties.
111 @param opts: the command line options selected by the user
113 @param args: groups to list, or empty for all
115 @return: the desired exit code
118 desired_fields = ParseFields(opts.output, _LIST_DEF_FIELDS)
120 "node_list": (",".join, False),
121 "pinst_list": (",".join, False),
122 "ndparams": (_FmtDict, False),
125 return GenericList(constants.QR_GROUP, desired_fields, args, None,
126 opts.separator, not opts.no_headers,
127 format_override=fmtoverride, verbose=opts.verbose,
128 force_filter=opts.force_filter)
131 def ListGroupFields(opts, args):
134 @param opts: the command line options selected by the user
136 @param args: fields to list, or empty for all
138 @return: the desired exit code
141 return GenericListFields(constants.QR_GROUP, args, opts.separator,
145 def SetGroupParams(opts, args):
146 """Modifies a node group's parameters.
148 @param opts: the command line options selected by the user
150 @param args: should contain only one element, the node group name
153 @return: the desired exit code
156 allmods = [opts.ndparams, opts.alloc_policy, opts.diskparams, opts.hv_state,
157 opts.disk_state, opts.ispecs_mem_size, opts.ispecs_cpu_count,
158 opts.ispecs_disk_count, opts.ispecs_disk_size,
159 opts.ispecs_nic_count, opts.diskparams]
160 if allmods.count(None) == len(allmods):
161 ToStderr("Please give at least one of the parameters.")
165 disk_state = utils.FlatToDict(opts.disk_state)
169 hv_state = dict(opts.hv_state)
171 diskparams = dict(opts.diskparams)
173 # set the default values
175 opts.ispecs_mem_size,
176 opts.ispecs_cpu_count,
177 opts.ispecs_disk_count,
178 opts.ispecs_disk_size,
179 opts.ispecs_nic_count,
181 for ispec in to_ipolicy:
183 if isinstance(ispec[param], basestring):
184 if ispec[param].lower() == "default":
185 ispec[param] = constants.VALUE_DEFAULT
186 # create ipolicy object
187 ipolicy = objects.CreateIPolicyFromOpts(\
188 ispecs_mem_size=opts.ispecs_mem_size,
189 ispecs_cpu_count=opts.ispecs_cpu_count,
190 ispecs_disk_count=opts.ispecs_disk_count,
191 ispecs_disk_size=opts.ispecs_disk_size,
192 ispecs_nic_count=opts.ispecs_nic_count,
193 ispecs_disk_templates=opts.ispecs_disk_templates,
195 allowed_values=[constants.VALUE_DEFAULT])
197 op = opcodes.OpGroupSetParams(group_name=args[0],
198 ndparams=opts.ndparams,
199 alloc_policy=opts.alloc_policy,
201 disk_state=disk_state,
202 diskparams=diskparams,
205 result = SubmitOrSend(op, opts)
208 ToStdout("Modified node group %s", args[0])
209 for param, data in result:
210 ToStdout(" - %-5s -> %s", param, data)
215 def RemoveGroup(opts, args):
216 """Remove a node group from the cluster.
218 @param opts: the command line options selected by the user
220 @param args: a list of length 1 with the name of the group to remove
222 @return: the desired exit code
226 op = opcodes.OpGroupRemove(group_name=group_name)
227 SubmitOpCode(op, opts=opts)
230 def RenameGroup(opts, args):
231 """Rename a node group.
233 @param opts: the command line options selected by the user
235 @param args: a list of length 2, [old_name, new_name]
237 @return: the desired exit code
240 group_name, new_name = args
241 op = opcodes.OpGroupRename(group_name=group_name, new_name=new_name)
242 SubmitOpCode(op, opts=opts)
245 def EvacuateGroup(opts, args):
246 """Evacuate a node group.
249 (group_name, ) = args
253 op = opcodes.OpGroupEvacuate(group_name=group_name,
254 iallocator=opts.iallocator,
255 target_groups=opts.to,
256 early_release=opts.early_release)
257 result = SubmitOpCode(op, cl=cl, opts=opts)
259 # Keep track of submitted jobs
260 jex = JobExecutor(cl=cl, opts=opts)
262 for (status, job_id) in result[constants.JOB_IDS_KEY]:
263 jex.AddJobId(None, status, job_id)
265 results = jex.GetResults()
266 bad_cnt = len([row for row in results if not row[0]])
268 ToStdout("All instances evacuated successfully.")
269 rcode = constants.EXIT_SUCCESS
271 ToStdout("There were %s errors during the evacuation.", bad_cnt)
272 rcode = constants.EXIT_FAILURE
278 AddGroup, ARGS_ONE_GROUP,
279 [DRY_RUN_OPT, ALLOC_POLICY_OPT, NODE_PARAMS_OPT, DISK_PARAMS_OPT,
280 HV_STATE_OPT, DISK_STATE_OPT] + INSTANCE_POLICY_OPTS,
281 "<group_name>", "Add a new node group to the cluster"),
283 AssignNodes, ARGS_ONE_GROUP + ARGS_MANY_NODES, [DRY_RUN_OPT, FORCE_OPT],
284 "<group_name> <node>...", "Assign nodes to a group"),
286 ListGroups, ARGS_MANY_GROUPS,
287 [NOHDR_OPT, SEP_OPT, FIELDS_OPT, VERBOSE_OPT, FORCE_FILTER_OPT],
289 "Lists the node groups in the cluster. The available fields can be shown"
290 " using the \"list-fields\" command (see the man page for details)."
291 " The default list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS)),
293 ListGroupFields, [ArgUnknown()], [NOHDR_OPT, SEP_OPT], "[fields...]",
294 "Lists all available fields for node groups"),
296 SetGroupParams, ARGS_ONE_GROUP,
297 [DRY_RUN_OPT, SUBMIT_OPT, ALLOC_POLICY_OPT, NODE_PARAMS_OPT, HV_STATE_OPT,
298 DISK_STATE_OPT, DISK_PARAMS_OPT] + INSTANCE_POLICY_OPTS,
299 "<group_name>", "Alters the parameters of a node group"),
301 RemoveGroup, ARGS_ONE_GROUP, [DRY_RUN_OPT],
302 "[--dry-run] <group-name>",
303 "Remove an (empty) node group from the cluster"),
305 RenameGroup, [ArgGroup(min=2, max=2)], [DRY_RUN_OPT],
306 "[--dry-run] <group-name> <new-name>", "Rename a node group"),
308 EvacuateGroup, [ArgGroup(min=1, max=1)],
309 [TO_GROUP_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT],
310 "[-I <iallocator>] [--to <group>]",
311 "Evacuate all instances within a group"),
313 ListTags, ARGS_ONE_GROUP, [PRIORITY_OPT],
314 "<instance_name>", "List the tags of the given instance"),
316 AddTags, [ArgGroup(min=1, max=1), ArgUnknown()],
317 [TAG_SRC_OPT, PRIORITY_OPT],
318 "<instance_name> tag...", "Add tags to the given instance"),
320 RemoveTags, [ArgGroup(min=1, max=1), ArgUnknown()],
321 [TAG_SRC_OPT, PRIORITY_OPT],
322 "<instance_name> tag...", "Remove tags from given instance"),
327 return GenericMain(commands,
328 override={"tag_type": constants.TAG_NODEGROUP},
329 env_override=_ENV_OVERRIDE)