Package ganeti :: Package client :: Module gnt_backup
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Source Code for Module ganeti.client.gnt_backup

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 29   
 30  """Backup related commands""" 
 31   
 32  # pylint: disable=W0401,W0613,W0614,C0103 
 33  # W0401: Wildcard import ganeti.cli 
 34  # W0613: Unused argument, since all functions follow the same API 
 35  # W0614: Unused import %s from wildcard import (since we need cli) 
 36  # C0103: Invalid name gnt-backup 
 37   
 38  from ganeti.cli import * 
 39  from ganeti import opcodes 
 40  from ganeti import constants 
 41  from ganeti import errors 
 42  from ganeti import qlang 
 43   
 44   
 45  _LIST_DEF_FIELDS = ["node", "export"] 
 46   
 47   
48 -def PrintExportList(opts, args):
49 """Prints a list of all the exported system images. 50 51 @param opts: the command line options selected by the user 52 @type args: list 53 @param args: should be an empty list 54 @rtype: int 55 @return: the desired exit code 56 57 """ 58 selected_fields = ParseFields(opts.output, _LIST_DEF_FIELDS) 59 60 qfilter = qlang.MakeSimpleFilter("node", opts.nodes) 61 62 cl = GetClient(query=True) 63 64 return GenericList(constants.QR_EXPORT, selected_fields, None, opts.units, 65 opts.separator, not opts.no_headers, 66 verbose=opts.verbose, qfilter=qfilter, cl=cl)
67 68
69 -def ListExportFields(opts, args):
70 """List export fields. 71 72 @param opts: the command line options selected by the user 73 @type args: list 74 @param args: fields to list, or empty for all 75 @rtype: int 76 @return: the desired exit code 77 78 """ 79 cl = GetClient(query=True) 80 81 return GenericListFields(constants.QR_EXPORT, args, opts.separator, 82 not opts.no_headers, cl=cl)
83 84
85 -def ExportInstance(opts, args):
86 """Export an instance to an image in the cluster. 87 88 @param opts: the command line options selected by the user 89 @type args: list 90 @param args: should contain only one element, the name 91 of the instance to be exported 92 @rtype: int 93 @return: the desired exit code 94 95 """ 96 ignore_remove_failures = opts.ignore_remove_failures 97 98 if not opts.node: 99 raise errors.OpPrereqError("Target node must be specified", 100 errors.ECODE_INVAL) 101 102 op = opcodes.OpBackupExport(instance_name=args[0], 103 target_node=opts.node, 104 shutdown=opts.shutdown, 105 shutdown_timeout=opts.shutdown_timeout, 106 remove_instance=opts.remove_instance, 107 ignore_remove_failures=ignore_remove_failures) 108 109 SubmitOrSend(op, opts) 110 return 0
111 112
113 -def ImportInstance(opts, args):
114 """Add an instance to the cluster. 115 116 This is just a wrapper over GenericInstanceCreate. 117 118 """ 119 return GenericInstanceCreate(constants.INSTANCE_IMPORT, opts, args)
120 121
122 -def RemoveExport(opts, args):
123 """Remove an export from the cluster. 124 125 @param opts: the command line options selected by the user 126 @type args: list 127 @param args: should contain only one element, the name of the 128 instance whose backup should be removed 129 @rtype: int 130 @return: the desired exit code 131 132 """ 133 op = opcodes.OpBackupRemove(instance_name=args[0]) 134 135 SubmitOrSend(op, opts) 136 return 0
137 138 139 # this is defined separately due to readability only 140 import_opts = [ 141 IDENTIFY_DEFAULTS_OPT, 142 SRC_DIR_OPT, 143 SRC_NODE_OPT, 144 IGNORE_IPOLICY_OPT, 145 ] 146 147 148 commands = { 149 "list": ( 150 PrintExportList, ARGS_NONE, 151 [NODE_LIST_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT, VERBOSE_OPT], 152 "", "Lists instance exports available in the ganeti cluster"), 153 "list-fields": ( 154 ListExportFields, [ArgUnknown()], 155 [NOHDR_OPT, SEP_OPT], 156 "[fields...]", 157 "Lists all available fields for exports"), 158 "export": ( 159 ExportInstance, ARGS_ONE_INSTANCE, 160 [FORCE_OPT, SINGLE_NODE_OPT, NOSHUTDOWN_OPT, SHUTDOWN_TIMEOUT_OPT, 161 REMOVE_INSTANCE_OPT, IGNORE_REMOVE_FAILURES_OPT, DRY_RUN_OPT, 162 PRIORITY_OPT] + SUBMIT_OPTS, 163 "-n <target_node> [opts...] <name>", 164 "Exports an instance to an image"), 165 "import": ( 166 ImportInstance, ARGS_ONE_INSTANCE, COMMON_CREATE_OPTS + import_opts, 167 "[...] -t disk-type -n node[:secondary-node] <name>", 168 "Imports an instance from an exported image"), 169 "remove": ( 170 RemoveExport, [ArgUnknown(min=1, max=1)], 171 [DRY_RUN_OPT, PRIORITY_OPT] + SUBMIT_OPTS, 172 "<name>", "Remove exports of named instance from the filesystem."), 173 } 174 175
176 -def Main():
177 return GenericMain(commands)
178