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
21 """Backup related commands"""
23 # pylint: disable-msg=W0401,W0613,W0614,C0103
24 # W0401: Wildcard import ganeti.cli
25 # W0613: Unused argument, since all functions follow the same API
26 # W0614: Unused import %s from wildcard import (since we need cli)
27 # C0103: Invalid name gnt-backup
31 from ganeti.cli import *
32 from ganeti import opcodes
33 from ganeti import constants
39 def PrintExportList(opts, args):
40 """Prints a list of all the exported system images.
42 @param opts: the command line options selected by the user
44 @param args: should be an empty list
46 @return: the desired exit code
49 exports = GetClient().QueryExports(opts.nodes, False)
52 ToStdout("Node: %s", node)
54 if isinstance(exports[node], list):
55 for instance_name in exports[node]:
56 ToStdout("\t%s", instance_name)
58 ToStdout(" Could not get exports list")
63 def ExportInstance(opts, args):
64 """Export an instance to an image in the cluster.
66 @param opts: the command line options selected by the user
68 @param args: should contain only one element, the name
69 of the instance to be exported
71 @return: the desired exit code
74 op = opcodes.OpExportInstance(instance_name=args[0],
75 target_node=opts.node,
76 shutdown=opts.shutdown,
77 shutdown_timeout=opts.shutdown_timeout)
79 fin_resu, dlist = SubmitOpCode(op, opts=opts)
80 if not isinstance(dlist, list):
81 ToStderr("Cannot parse execution results")
83 # TODO: handle diskless instances
84 if dlist.count(False) == 0:
87 elif dlist.count(True) == 0:
88 ToStderr("Error: No disks were backed up successfully."
89 " The export doesn't have any valid data,"
90 " it is recommended to retry the operation.")
93 ToStderr("Partial export failure: %d disks backed up, %d disks failed.",
94 dlist.count(True), dlist.count(False))
100 def ImportInstance(opts, args):
101 """Add an instance to the cluster.
103 This is just a wrapper over GenericInstanceCreate.
106 return GenericInstanceCreate(constants.INSTANCE_IMPORT, opts, args)
109 def RemoveExport(opts, args):
110 """Remove an export from the cluster.
112 @param opts: the command line options selected by the user
114 @param args: should contain only one element, the name of the
115 instance whose backup should be removed
117 @return: the desired exit code
120 op = opcodes.OpRemoveExport(instance_name=args[0])
122 SubmitOpCode(op, opts=opts)
126 # this is defined separately due to readability only
132 FILESTORE_DRIVER_OPT,
135 IDENTIFY_DEFAULTS_OPT,
150 PrintExportList, ARGS_NONE,
152 "", "Lists instance exports available in the ganeti cluster"),
154 ExportInstance, ARGS_ONE_INSTANCE,
155 [FORCE_OPT, SINGLE_NODE_OPT, NOSHUTDOWN_OPT, SHUTDOWN_TIMEOUT_OPT],
156 "-n <target_node> [opts...] <name>",
157 "Exports an instance to an image"),
159 ImportInstance, ARGS_ONE_INSTANCE, import_opts,
160 "[...] -t disk-type -n node[:secondary-node] <name>",
161 "Imports an instance from an exported image"),
163 RemoveExport, [ArgUnknown(min=1, max=1)], [],
164 "<name>", "Remove exports of named instance from the filesystem."),
168 if __name__ == '__main__':
169 sys.exit(GenericMain(commands))