4 # Copyright (C) 2006, 2007 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
23 from optparse import make_option
25 from ganeti.cli import *
26 from ganeti import opcodes
27 from ganeti import logger
28 from ganeti import utils
29 from ganeti import constants
30 from ganeti import errors
33 def AddNode(opts, args):
34 """Add node cli-to-processor bridge."""
35 logger.ToStderr("-- WARNING -- \n"
36 "Performing this operation is going to replace the ssh daemon keypair\n"
37 "on the target machine (%s) with the ones of the current one\n"
38 "and grant full intra-cluster ssh root access to/from it\n" % args[0])
39 op = opcodes.OpAddNode(node_name=args[0], secondary_ip=opts.secondary_ip)
43 def ListNodes(opts, args):
44 """List nodes and their properties.
47 if opts.output is None:
48 selected_fields = ["name", "dtotal", "dfree",
49 "mtotal", "mnode", "mfree",
50 "pinst_cnt", "sinst_cnt"]
52 selected_fields = opts.output.split(",")
54 op = opcodes.OpQueryNodes(output_fields=selected_fields, names=[])
55 output = SubmitOpCode(op)
57 if not opts.no_headers:
58 headers = {"name": "Node", "pinst_cnt": "Pinst", "sinst_cnt": "Sinst",
59 "pinst_list": "PriInstances", "sinst_list": "SecInstances",
60 "pip": "PrimaryIP", "sip": "SecondaryIP",
61 "dtotal": "DTotal", "dfree": "DFree",
62 "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree",
67 if opts.human_readable:
68 unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
72 numfields = ["dtotal", "dfree",
73 "mtotal", "mnode", "mfree",
74 "pinst_cnt", "sinst_cnt"]
76 # change raw values to nicer strings
78 for idx, field in enumerate(selected_fields):
80 if field == "pinst_list":
82 elif field == "sinst_list":
88 data = GenerateTable(separator=opts.separator, headers=headers,
89 fields=selected_fields, unitfields=unitfields,
90 numfields=numfields, data=output)
97 def EvacuateNode(opts, args):
98 """Relocate all secondary instance from a node.
102 selected_fields = ["name", "sinst_list"]
103 src_node, dst_node = args
105 op = opcodes.OpQueryNodes(output_fields=selected_fields, names=[src_node])
106 result = SubmitOpCode(op)
107 src_node, sinst = result[0]
108 op = opcodes.OpQueryNodes(output_fields=["name"], names=[dst_node])
109 result = SubmitOpCode(op)
110 dst_node = result[0][0]
112 if src_node == dst_node:
113 raise errors.OpPrereqError("Evacuate node needs different source and"
114 " target nodes (node %s given twice)" %
118 logger.ToStderr("No secondary instances on node %s, exiting." % src_node)
119 return constants.EXIT_SUCCESS
121 sinst = utils.NiceSort(sinst)
123 retcode = constants.EXIT_SUCCESS
125 if not force and not AskUser("Relocate instance(s) %s from node\n"
126 " %s to node\n %s?" %
127 (",".join("'%s'" % name for name in sinst),
128 src_node, dst_node)):
129 return constants.EXIT_CONFIRMATION
131 good_cnt = bad_cnt = 0
133 op = opcodes.OpReplaceDisks(instance_name=iname,
134 remote_node=dst_node,
135 mode=constants.REPLACE_DISK_ALL,
136 disks=["sda", "sdb"])
138 logger.ToStdout("Replacing disks for instance %s" % iname)
140 logger.ToStdout("Instance %s has been relocated" % iname)
142 except errors.GenericError, err:
143 nret, msg = FormatError(err)
145 logger.ToStderr("Error replacing disks for instance %s: %s" %
149 if retcode == constants.EXIT_SUCCESS:
150 logger.ToStdout("All %d instance(s) relocated successfully." % good_cnt)
152 logger.ToStdout("There were errors during the relocation:\n"
153 "%d error(s) out of %d instance(s)." %
154 (bad_cnt, good_cnt + bad_cnt))
158 def FailoverNode(opts, args):
159 """Failover all primary instance on a node.
163 selected_fields = ["name", "pinst_list"]
165 op = opcodes.OpQueryNodes(output_fields=selected_fields, names=args)
166 result = SubmitOpCode(op)
167 node, pinst = result[0]
170 logger.ToStderr("No primary instances on node %s, exiting." % node)
173 pinst = utils.NiceSort(pinst)
177 if not force and not AskUser("Fail over instance(s) %s?" %
178 (",".join("'%s'" % name for name in pinst))):
181 good_cnt = bad_cnt = 0
183 op = opcodes.OpFailoverInstance(instance_name=iname,
184 ignore_consistency=opts.ignore_consistency)
186 logger.ToStdout("Failing over instance %s" % iname)
188 logger.ToStdout("Instance %s has been failed over" % iname)
190 except errors.GenericError, err:
191 nret, msg = FormatError(err)
193 logger.ToStderr("Error failing over instance %s: %s" % (iname, msg))
197 logger.ToStdout("All %d instance(s) failed over successfully." % good_cnt)
199 logger.ToStdout("There were errors during the failover:\n"
200 "%d error(s) out of %d instance(s)." %
201 (bad_cnt, good_cnt + bad_cnt))
205 def ShowNodeConfig(opts, args):
206 """Show node information.
209 op = opcodes.OpQueryNodes(output_fields=["name", "pip", "sip",
210 "pinst_list", "sinst_list"],
212 result = SubmitOpCode(op)
214 for name, primary_ip, secondary_ip, pinst, sinst in result:
215 logger.ToStdout("Node name: %s" % name)
216 logger.ToStdout(" primary ip: %s" % primary_ip)
217 logger.ToStdout(" secondary ip: %s" % secondary_ip)
219 logger.ToStdout(" primary for instances:")
221 logger.ToStdout(" - %s" % iname)
223 logger.ToStdout(" primary for no instances")
225 logger.ToStdout(" secondary for instances:")
227 logger.ToStdout(" - %s" % iname)
229 logger.ToStdout(" secondary for no instances")
234 def RemoveNode(opts, args):
235 """Remove node cli-to-processor bridge."""
236 op = opcodes.OpRemoveNode(node_name=args[0])
240 def ListVolumes(opts, args):
241 """List logical volumes on node(s).
244 if opts.output is None:
245 selected_fields = ["node", "phys", "vg",
246 "name", "size", "instance"]
248 selected_fields = opts.output.split(",")
250 op = opcodes.OpQueryNodeVolumes(nodes=args, output_fields=selected_fields)
251 output = SubmitOpCode(op)
253 if not opts.no_headers:
254 headers = {"node": "Node", "phys": "PhysDev",
255 "vg": "VG", "name": "Name",
256 "size": "Size", "instance": "Instance"}
260 if opts.human_readable:
261 unitfields = ["size"]
267 data = GenerateTable(separator=opts.separator, headers=headers,
268 fields=selected_fields, unitfields=unitfields,
269 numfields=numfields, data=output)
272 logger.ToStdout(line)
278 'add': (AddNode, ARGS_ONE,
280 make_option("-s", "--secondary-ip", dest="secondary_ip",
281 help="Specify the secondary ip for the node",
282 metavar="ADDRESS", default=None),],
283 "[-s ip] <node_name>", "Add a node to the cluster"),
284 'evacuate': (EvacuateNode, ARGS_FIXED(2),
285 [DEBUG_OPT, FORCE_OPT],
286 "[-f] <src_node> <dst_node>",
287 "Relocate the secondary instances from the first node"
288 " to the second one (only for instances of type remote_raid1"
290 'failover': (FailoverNode, ARGS_ONE,
291 [DEBUG_OPT, FORCE_OPT,
292 make_option("--ignore-consistency", dest="ignore_consistency",
293 action="store_true", default=False,
294 help="Ignore the consistency of the disks on"
298 "Stops the primary instances on a node and start them on their"
299 " secondary node (only for instances of type remote_raid1"
301 'info': (ShowNodeConfig, ARGS_ANY, [DEBUG_OPT],
302 "[<node_name>...]", "Show information about the node(s)"),
303 'list': (ListNodes, ARGS_NONE,
304 [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
305 "", "Lists the nodes in the cluster. The available fields"
306 " are (see the man page for details): name, pinst_cnt, pinst_list,"
307 " sinst_cnt, sinst_list, pip, sip, dtotal, dfree, mtotal, mnode,"
308 " mfree, bootid. The default field list is (in order): name,"
309 " dtotal, dfree, mtotal, mnode, mfree, pinst_cnt, sinst_cnt."),
310 'remove': (RemoveNode, ARGS_ONE, [DEBUG_OPT],
311 "<node_name>", "Removes a node from the cluster"),
312 'volumes': (ListVolumes, ARGS_ANY,
313 [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
314 "[<node_name>...]", "List logical volumes on node(s)"),
315 'list-tags': (ListTags, ARGS_ONE, [DEBUG_OPT],
316 "<node_name>", "List the tags of the given node"),
317 'add-tags': (AddTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
318 "<node_name> tag...", "Add tags to the given node"),
319 'remove-tags': (RemoveTags, ARGS_ATLEAST(1), [DEBUG_OPT, TAG_SRC_OPT],
320 "<node_name> tag...", "Remove tags from the given node"),
324 if __name__ == '__main__':
325 sys.exit(GenericMain(commands, override={"tag_type": constants.TAG_NODE}))