root / lib / client / gnt_backup.py @ 4ff922a2
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# Copyright (C) 2006, 2007, 2010, 2011 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Backup related commands"""
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# pylint: disable-msg=W0401,W0613,W0614,C0103
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# W0401: Wildcard import ganeti.cli
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# W0613: Unused argument, since all functions follow the same API
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# W0614: Unused import %s from wildcard import (since we need cli)
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# C0103: Invalid name gnt-backup
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from ganeti.cli import * |
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from ganeti import opcodes |
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from ganeti import constants |
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from ganeti import errors |
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_VALUE_TRUE = "true"
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def PrintExportList(opts, args): |
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"""Prints a list of all the exported system images.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should be an empty list
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@rtype: int
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@return: the desired exit code
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"""
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exports = GetClient().QueryExports(opts.nodes, False)
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retcode = 0
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for node in exports: |
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ToStdout("Node: %s", node)
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ToStdout("Exports:")
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if isinstance(exports[node], list): |
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for instance_name in exports[node]: |
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ToStdout("\t%s", instance_name)
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else:
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ToStdout(" Could not get exports list")
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retcode = 1
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return retcode
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def ExportInstance(opts, args): |
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"""Export an instance to an image in the cluster.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain only one element, the name
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of the instance to be exported
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@rtype: int
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@return: the desired exit code
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"""
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ignore_remove_failures = opts.ignore_remove_failures |
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if not opts.node: |
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raise errors.OpPrereqError("Target node must be specified", |
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errors.ECODE_INVAL) |
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op = opcodes.OpBackupExport(instance_name=args[0],
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target_node=opts.node, |
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shutdown=opts.shutdown, |
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shutdown_timeout=opts.shutdown_timeout, |
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remove_instance=opts.remove_instance, |
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ignore_remove_failures=ignore_remove_failures) |
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SubmitOpCode(op, opts=opts) |
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return 0 |
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def ImportInstance(opts, args): |
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"""Add an instance to the cluster.
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This is just a wrapper over GenericInstanceCreate.
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"""
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return GenericInstanceCreate(constants.INSTANCE_IMPORT, opts, args)
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def RemoveExport(opts, args): |
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"""Remove an export from the cluster.
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@param opts: the command line options selected by the user
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@type args: list
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@param args: should contain only one element, the name of the
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instance whose backup should be removed
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@rtype: int
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@return: the desired exit code
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"""
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op = opcodes.OpRemoveExport(instance_name=args[0])
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SubmitOpCode(op, opts=opts) |
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return 0 |
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# this is defined separately due to readability only
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import_opts = [ |
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IDENTIFY_DEFAULTS_OPT, |
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SRC_DIR_OPT, |
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SRC_NODE_OPT, |
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] |
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commands = { |
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'list': (
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PrintExportList, ARGS_NONE, |
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[NODE_LIST_OPT], |
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"", "Lists instance exports available in the ganeti cluster"), |
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'export': (
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ExportInstance, ARGS_ONE_INSTANCE, |
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[FORCE_OPT, SINGLE_NODE_OPT, NOSHUTDOWN_OPT, SHUTDOWN_TIMEOUT_OPT, |
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REMOVE_INSTANCE_OPT, IGNORE_REMOVE_FAILURES_OPT, DRY_RUN_OPT, |
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PRIORITY_OPT], |
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"-n <target_node> [opts...] <name>",
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"Exports an instance to an image"),
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'import': (
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ImportInstance, ARGS_ONE_INSTANCE, COMMON_CREATE_OPTS + import_opts, |
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"[...] -t disk-type -n node[:secondary-node] <name>",
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"Imports an instance from an exported image"),
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'remove': (
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RemoveExport, [ArgUnknown(min=1, max=1)], [DRY_RUN_OPT, PRIORITY_OPT], |
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"<name>", "Remove exports of named instance from the filesystem."), |
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} |
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def Main(): |
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return GenericMain(commands)
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