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21 """Node group related commands"""
22
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25
26
27 from ganeti.cli import *
28 from ganeti import constants
29 from ganeti import opcodes
30 from ganeti import utils
31 from cStringIO import StringIO
32
33
34
35 _LIST_DEF_FIELDS = ["name", "node_cnt", "pinst_cnt", "alloc_policy", "ndparams"]
36
37
38 _ENV_OVERRIDE = frozenset(["list"])
39
40
42 """Add a node group to the cluster.
43
44 @param opts: the command line options selected by the user
45 @type args: list
46 @param args: a list of length 1 with the name of the group to create
47 @rtype: int
48 @return: the desired exit code
49
50 """
51 ipolicy = CreateIPolicyFromOpts(
52 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,
57 ipolicy_vcpu_ratio=opts.ipolicy_vcpu_ratio,
58 ipolicy_spindle_ratio=opts.ipolicy_spindle_ratio,
59 group_ipolicy=True)
60
61 (group_name,) = args
62 diskparams = dict(opts.diskparams)
63
64 if opts.disk_state:
65 disk_state = utils.FlatToDict(opts.disk_state)
66 else:
67 disk_state = {}
68 hv_state = dict(opts.hv_state)
69
70 op = opcodes.OpGroupAdd(group_name=group_name, ndparams=opts.ndparams,
71 alloc_policy=opts.alloc_policy,
72 diskparams=diskparams, ipolicy=ipolicy,
73 hv_state=hv_state,
74 disk_state=disk_state)
75 SubmitOrSend(op, opts)
76
77
79 """Assign nodes to a group.
80
81 @param opts: the command line options selected by the user
82 @type args: list
83 @param args: args[0]: group to assign nodes to; args[1:]: nodes to assign
84 @rtype: int
85 @return: the desired exit code
86
87 """
88 group_name = args[0]
89 node_names = args[1:]
90
91 op = opcodes.OpGroupAssignNodes(group_name=group_name, nodes=node_names,
92 force=opts.force)
93 SubmitOrSend(op, opts)
94
95
97 """Format dict data into command-line format.
98
99 @param data: The input dict to be formatted
100 @return: The formatted dict
101
102 """
103 if not data:
104 return "(empty)"
105
106 return utils.CommaJoin(["%s=%s" % (key, value)
107 for key, value in data.items()])
108
109
111 """List node groups and their properties.
112
113 @param opts: the command line options selected by the user
114 @type args: list
115 @param args: groups to list, or empty for all
116 @rtype: int
117 @return: the desired exit code
118
119 """
120 desired_fields = ParseFields(opts.output, _LIST_DEF_FIELDS)
121 fmtoverride = {
122 "node_list": (",".join, False),
123 "pinst_list": (",".join, False),
124 "ndparams": (_FmtDict, False),
125 }
126
127 return GenericList(constants.QR_GROUP, desired_fields, args, None,
128 opts.separator, not opts.no_headers,
129 format_override=fmtoverride, verbose=opts.verbose,
130 force_filter=opts.force_filter)
131
132
134 """List node fields.
135
136 @param opts: the command line options selected by the user
137 @type args: list
138 @param args: fields to list, or empty for all
139 @rtype: int
140 @return: the desired exit code
141
142 """
143 return GenericListFields(constants.QR_GROUP, args, opts.separator,
144 not opts.no_headers)
145
146
148 """Modifies a node group's parameters.
149
150 @param opts: the command line options selected by the user
151 @type args: list
152 @param args: should contain only one element, the node group name
153
154 @rtype: int
155 @return: the desired exit code
156
157 """
158 allmods = [opts.ndparams, opts.alloc_policy, opts.diskparams, opts.hv_state,
159 opts.disk_state, opts.ispecs_mem_size, opts.ispecs_cpu_count,
160 opts.ispecs_disk_count, opts.ispecs_disk_size,
161 opts.ispecs_nic_count, opts.ipolicy_vcpu_ratio,
162 opts.ipolicy_spindle_ratio, opts.diskparams]
163 if allmods.count(None) == len(allmods):
164 ToStderr("Please give at least one of the parameters.")
165 return 1
166
167 if opts.disk_state:
168 disk_state = utils.FlatToDict(opts.disk_state)
169 else:
170 disk_state = {}
171
172 hv_state = dict(opts.hv_state)
173
174 diskparams = dict(opts.diskparams)
175
176
177 to_ipolicy = [
178 opts.ispecs_mem_size,
179 opts.ispecs_cpu_count,
180 opts.ispecs_disk_count,
181 opts.ispecs_disk_size,
182 opts.ispecs_nic_count,
183 ]
184 for ispec in to_ipolicy:
185 for param in ispec:
186 if isinstance(ispec[param], basestring):
187 if ispec[param].lower() == "default":
188 ispec[param] = constants.VALUE_DEFAULT
189
190 ipolicy = CreateIPolicyFromOpts(
191 ispecs_mem_size=opts.ispecs_mem_size,
192 ispecs_cpu_count=opts.ispecs_cpu_count,
193 ispecs_disk_count=opts.ispecs_disk_count,
194 ispecs_disk_size=opts.ispecs_disk_size,
195 ispecs_nic_count=opts.ispecs_nic_count,
196 ipolicy_disk_templates=opts.ipolicy_disk_templates,
197 ipolicy_vcpu_ratio=opts.ipolicy_vcpu_ratio,
198 ipolicy_spindle_ratio=opts.ipolicy_spindle_ratio,
199 group_ipolicy=True,
200 allowed_values=[constants.VALUE_DEFAULT])
201
202 op = opcodes.OpGroupSetParams(group_name=args[0],
203 ndparams=opts.ndparams,
204 alloc_policy=opts.alloc_policy,
205 hv_state=hv_state,
206 disk_state=disk_state,
207 diskparams=diskparams,
208 ipolicy=ipolicy)
209
210 result = SubmitOrSend(op, opts)
211
212 if result:
213 ToStdout("Modified node group %s", args[0])
214 for param, data in result:
215 ToStdout(" - %-5s -> %s", param, data)
216
217 return 0
218
219
221 """Remove a node group from the cluster.
222
223 @param opts: the command line options selected by the user
224 @type args: list
225 @param args: a list of length 1 with the name of the group to remove
226 @rtype: int
227 @return: the desired exit code
228
229 """
230 (group_name,) = args
231 op = opcodes.OpGroupRemove(group_name=group_name)
232 SubmitOrSend(op, opts)
233
234
236 """Rename a node group.
237
238 @param opts: the command line options selected by the user
239 @type args: list
240 @param args: a list of length 2, [old_name, new_name]
241 @rtype: int
242 @return: the desired exit code
243
244 """
245 group_name, new_name = args
246 op = opcodes.OpGroupRename(group_name=group_name, new_name=new_name)
247 SubmitOrSend(op, opts)
248
249
251 """Evacuate a node group.
252
253 """
254 (group_name, ) = args
255
256 cl = GetClient()
257
258 op = opcodes.OpGroupEvacuate(group_name=group_name,
259 iallocator=opts.iallocator,
260 target_groups=opts.to,
261 early_release=opts.early_release)
262 result = SubmitOrSend(op, opts, cl=cl)
263
264
265 jex = JobExecutor(cl=cl, opts=opts)
266
267 for (status, job_id) in result[constants.JOB_IDS_KEY]:
268 jex.AddJobId(None, status, job_id)
269
270 results = jex.GetResults()
271 bad_cnt = len([row for row in results if not row[0]])
272 if bad_cnt == 0:
273 ToStdout("All instances evacuated successfully.")
274 rcode = constants.EXIT_SUCCESS
275 else:
276 ToStdout("There were %s errors during the evacuation.", bad_cnt)
277 rcode = constants.EXIT_FAILURE
278
279 return rcode
280
281
292
293
295 """Shows info about node group.
296
297 """
298 cl = GetClient()
299 selected_fields = ["name",
300 "ndparams", "custom_ndparams",
301 "diskparams", "custom_diskparams",
302 "ipolicy", "custom_ipolicy"]
303 result = cl.QueryGroups(names=args, fields=selected_fields,
304 use_locking=False)
305
306 for (name,
307 ndparams, custom_ndparams,
308 diskparams, custom_diskparams,
309 ipolicy, custom_ipolicy) in result:
310 ToStdout("Node group: %s" % name)
311 ToStdout(" Node parameters:")
312 ToStdout(_FormatDict(custom_ndparams, ndparams))
313 ToStdout(" Disk parameters:")
314 ToStdout(_FormatDict(custom_diskparams, diskparams))
315 ToStdout(" Instance policy:")
316 ToStdout(_FormatDict(custom_ipolicy, ipolicy))
317
318
319 commands = {
320 "add": (
321 AddGroup, ARGS_ONE_GROUP,
322 [DRY_RUN_OPT, ALLOC_POLICY_OPT, NODE_PARAMS_OPT, DISK_PARAMS_OPT,
323 HV_STATE_OPT, DISK_STATE_OPT, PRIORITY_OPT,
324 SUBMIT_OPT] + INSTANCE_POLICY_OPTS,
325 "<group_name>", "Add a new node group to the cluster"),
326 "assign-nodes": (
327 AssignNodes, ARGS_ONE_GROUP + ARGS_MANY_NODES,
328 [DRY_RUN_OPT, FORCE_OPT, PRIORITY_OPT, SUBMIT_OPT],
329 "<group_name> <node>...", "Assign nodes to a group"),
330 "list": (
331 ListGroups, ARGS_MANY_GROUPS,
332 [NOHDR_OPT, SEP_OPT, FIELDS_OPT, VERBOSE_OPT, FORCE_FILTER_OPT],
333 "[<group_name>...]",
334 "Lists the node groups in the cluster. The available fields can be shown"
335 " using the \"list-fields\" command (see the man page for details)."
336 " The default list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS)),
337 "list-fields": (
338 ListGroupFields, [ArgUnknown()], [NOHDR_OPT, SEP_OPT], "[fields...]",
339 "Lists all available fields for node groups"),
340 "modify": (
341 SetGroupParams, ARGS_ONE_GROUP,
342 [DRY_RUN_OPT, SUBMIT_OPT, ALLOC_POLICY_OPT, NODE_PARAMS_OPT, HV_STATE_OPT,
343 DISK_STATE_OPT, DISK_PARAMS_OPT, PRIORITY_OPT] + INSTANCE_POLICY_OPTS,
344 "<group_name>", "Alters the parameters of a node group"),
345 "remove": (
346 RemoveGroup, ARGS_ONE_GROUP, [DRY_RUN_OPT, PRIORITY_OPT, SUBMIT_OPT],
347 "[--dry-run] <group-name>",
348 "Remove an (empty) node group from the cluster"),
349 "rename": (
350 RenameGroup, [ArgGroup(min=2, max=2)],
351 [DRY_RUN_OPT, SUBMIT_OPT, PRIORITY_OPT],
352 "[--dry-run] <group-name> <new-name>", "Rename a node group"),
353 "evacuate": (
354 EvacuateGroup, [ArgGroup(min=1, max=1)],
355 [TO_GROUP_OPT, IALLOCATOR_OPT, EARLY_RELEASE_OPT, SUBMIT_OPT, PRIORITY_OPT],
356 "[-I <iallocator>] [--to <group>]",
357 "Evacuate all instances within a group"),
358 "list-tags": (
359 ListTags, ARGS_ONE_GROUP, [],
360 "<group_name>", "List the tags of the given group"),
361 "add-tags": (
362 AddTags, [ArgGroup(min=1, max=1), ArgUnknown()],
363 [TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT],
364 "<group_name> tag...", "Add tags to the given group"),
365 "remove-tags": (
366 RemoveTags, [ArgGroup(min=1, max=1), ArgUnknown()],
367 [TAG_SRC_OPT, PRIORITY_OPT, SUBMIT_OPT],
368 "<group_name> tag...", "Remove tags from the given group"),
369 "info": (
370 GroupInfo, ARGS_MANY_GROUPS, [], "<group_name>", "Show group information"),
371 }
372
373
375 return GenericMain(commands,
376 override={"tag_type": constants.TAG_NODEGROUP},
377 env_override=_ENV_OVERRIDE)
378