code.grnet.gr Git - ganeti-local/blob - scripts/gnt-backup

   1 #!/usr/bin/python
   2 #
   3
   4 # Copyright (C) 2006, 2007 Google Inc.
   5 #
   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.
  10 #
  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.
  15 #
  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
  19 # 02110-1301, USA.
  20
  21
  22 import sys
  23 from optparse import make_option
  24
  25 from ganeti.cli import *
  26 from ganeti import cmdlib
  27 from ganeti import opcodes
  28 from ganeti import constants
  29
  30
  31 _VALUE_TRUE = "true"
  32
  33 def PrintExportList(opts, args):
  34   """Prints a list of all the exported system images.
  35
  36   Args:
  37    opts - class with options as members (should be empty)
  38    args - should be empty
  39
  40   Returns:
  41     nothing
  42
  43   """
  44   exports = GetClient().QueryExports(opts.nodes)
  45   for node in exports:
  46     print ("Node: %s" % node)
  47     print ("Exports:")
  48     if isinstance(exports[node], list):
  49       for instance_name in exports[node]:
  50         print ("\t%s" % instance_name)
  51     else:
  52       print ("  Could not get exports list")
  53
  54
  55 def ExportInstance(opts, args):
  56   """Export an instance to an image in the cluster.
  57
  58   Args:
  59    opts - class with options as members
  60    args - list with a single element, the instance name
  61
  62   Returns:
  63     1 in case of error, 0 otherwise
  64
  65   """
  66   op = opcodes.OpExportInstance(instance_name=args[0],
  67                                 target_node=opts.node,
  68                                 shutdown=opts.shutdown)
  69
  70   SubmitOpCode(op)
  71
  72
  73 def ImportInstance(opts, args):
  74   """Add an instance to the cluster.
  75
  76   Args:
  77    opts - class with options as members
  78    args - list with a single element, the new instance name
  79   Opts used:
  80    memory - amount of memory to allocate to instance (MiB)
  81    size - amount of disk space to allocate to instance (MiB)
  82    os - which OS to run on instance
  83    node - node to run new instance on
  84    src_node - node containing the export
  85    src_dir - directory on the old node with the export in it
  86
  87   Returns:
  88     1 in case of error, 0 otherwise
  89
  90   """
  91   instance = args[0]
  92
  93   (pnode, snode) = SplitNodeOption(opts.node)
  94
  95   op = opcodes.OpCreateInstance(instance_name=instance, mem_size=opts.mem,
  96                                 disk_size=opts.size, swap_size=opts.swap,
  97                                 disk_template=opts.disk_template,
  98                                 mode=constants.INSTANCE_IMPORT,
  99                                 pnode=pnode, snode=snode,
 100                                 vcpus=opts.vcpus, ip_check=opts.ip_check,
 101                                 ip=opts.ip, bridge=opts.bridge, start=False,
 102                                 src_node=opts.src_node, src_path=opts.src_dir,
 103                                 wait_for_sync=opts.wait_for_sync, mac="auto",
 104                                 file_storage_dir=opts.file_storage_dir,
 105                                 file_driver=opts.file_driver,
 106                                 iallocator=opts.iallocator,
 107                                 auto_balance=auto_balance,
 108                                 hvm_boot_order=opts.hvm_boot_order,
 109                                 hvm_acpi=opts.hvm_acpi,
 110                                 hvm_nic_type=opts.hvm_nic_type,
 111                                 hvm_disk_type=opts.hvm_disk_type,
 112                                 hvm_pae=opts.hvm_pae,
 113                                 hvm_cdrom_image_path=opts.hvm_cdrom_image_path,
 114                                 vnc_bind_address=opts.vnc_bind_address)
 115
 116   SubmitOpCode(op)
 117   return 0
 118
 119
 120 def RemoveExport(opts, args):
 121   """Remove an export from the cluster.
 122
 123   Args:
 124    opts - class with options as members
 125    args - list with a single element, the exported instance to remove
 126   Opts used:
 127
 128   Returns:
 129     1 in case of error, 0 otherwise
 130
 131   """
 132   instance = args[0]
 133   op = opcodes.OpRemoveExport(instance_name=args[0])
 134
 135   SubmitOpCode(op)
 136   return 0
 137
 138
 139 # this is defined separately due to readability only
 140 import_opts = [
 141   DEBUG_OPT,
 142   make_option("-n", "--node", dest="node",
 143               help="Target node and optional secondary node",
 144               metavar="<pnode>[:<snode>]"),
 145   cli_option("-s", "--os-size", dest="size", help="Disk size, in MiB unless"
 146              " a suffix is used",
 147              default=20 * 1024, type="unit", metavar="<size>"),
 148   cli_option("--swap-size", dest="swap", help="Swap size",
 149              default=4 * 1024, type="unit", metavar="<size>"),
 150   cli_option("-m", "--memory", dest="mem", help="Memory size",
 151              default=128, type="unit", metavar="<mem>"),
 152   make_option("-p", "--cpu", dest="vcpus", help="Number of virtual CPUs",
 153               default=1, type="int", metavar="<PROC>"),
 154   make_option("-t", "--disk-template", dest="disk_template",
 155               help="Custom disk setup (diskless, file, plain, drbd)",
 156               default=None, metavar="TEMPL"),
 157   make_option("-i", "--ip", dest="ip",
 158               help="IP address ('none' [default], 'auto', or specify address)",
 159               default='none', type="string", metavar="<ADDRESS>"),
 160   make_option("--no-wait-for-sync", dest="wait_for_sync", default=True,
 161               action="store_false", help="Don't wait for sync (DANGEROUS!)"),
 162   make_option("-b", "--bridge", dest="bridge",
 163               help="Bridge to connect this instance to",
 164               default=None, metavar="<bridge>"),
 165   make_option("--src-node", dest="src_node", help="Source node",
 166               metavar="<node>"),
 167   make_option("--src-dir", dest="src_dir", help="Source directory",
 168               metavar="<dir>"),
 169   make_option("--no-ip-check", dest="ip_check", default=True,
 170               action="store_false", help="Don't check that the instance's IP"
 171               " is alive"),
 172   make_option("--iallocator", metavar="<NAME>",
 173               help="Select nodes for the instance automatically using the"
 174               " <NAME> iallocator plugin", default=None, type="string"),
 175   make_option("--file-storage-dir", dest="file_storage_dir",
 176               help="Relative path under default cluster-wide file storage dir"
 177               " to store file-based disks", default=None,
 178               metavar="<DIR>"),
 179   make_option("--file-driver", dest="file_driver", help="Driver to use"
 180               " for image files", default="loop", metavar="<DRIVER>"),
 181   make_option("--hvm-boot-order", dest="hvm_boot_order",
 182               help="Boot device order for HVM (one or more of [acdn])",
 183               default=None, type="string", metavar="<BOOTORDER>"),
 184   make_option("--hvm-acpi", dest="hvm_acpi",
 185               help="ACPI support for HVM (true|false)",
 186               metavar="<BOOL>", choices=["true", "false"]),
 187   make_option("--hvm-nic-type", dest="hvm_nic_type",
 188               help="Type of virtual NIC for HVM "
 189               "(rtl8139,ne2k_pci,ne2k_isa,paravirtual)",
 190               metavar="NICTYPE", choices=[constants.HT_HVM_NIC_RTL8139,
 191                                           constants.HT_HVM_NIC_NE2K_PCI,
 192                                           constants.HT_HVM_NIC_NE2K_ISA,
 193                                           constants.HT_HVM_DEV_PARAVIRTUAL],
 194               default=constants.HT_HVM_NIC_RTL8139),
 195   make_option("--hvm-disk-type", dest="hvm_disk_type",
 196               help="Type of virtual disks for HVM (ioemu,paravirtual)",
 197               metavar="DISKTYPE", choices=[constants.HT_HVM_DEV_IOEMU,
 198                                            constants.HT_HVM_DEV_PARAVIRTUAL],
 199               default=constants.HT_HVM_DEV_IOEMU,),
 200   make_option("--hvm-pae", dest="hvm_pae",
 201               help="PAE support for HVM (true|false)",
 202               metavar="<BOOL>", choices=["true", "false"]),
 203   make_option("--hvm-cdrom-image-path", dest="hvm_cdrom_image_path",
 204               help="CDROM image path for HVM (absolute path or None)",
 205               default=None, type="string", metavar="<CDROMIMAGE>"),
 206   make_option("--vnc-bind-address", dest="vnc_bind_address",
 207               help="bind address for VNC (IP address)",
 208               default=None, type="string", metavar="<VNCADDRESS>"),
 209   ]
 210
 211 commands = {
 212   'list': (PrintExportList, ARGS_NONE,
 213            [DEBUG_OPT,
 214             make_option("--node", dest="nodes", default=[], action="append",
 215                         help="List only backups stored on this node"
 216                              " (can be used multiple times)"),
 217             ],
 218            "", "Lists instance exports available in the ganeti cluster"),
 219   'export': (ExportInstance, ARGS_ONE,
 220              [DEBUG_OPT, FORCE_OPT,
 221               make_option("-n", "--node", dest="node", help="Target node",
 222                           metavar="<node>"),
 223               make_option("","--noshutdown", dest="shutdown",
 224                           action="store_false", default=True,
 225                           help="Don't shutdown the instance (unsafe)"), ],
 226              "-n <target_node> [opts...] <name>",
 227              "Exports an instance to an image"),
 228   'import': (ImportInstance, ARGS_ONE, import_opts,
 229              ("[...] -t disk-type -n node[:secondary-node]"
 230               " --src-node node --src-dir dir"
 231               " <name>"),
 232              "Imports an instance from an exported image"),
 233   'remove': (RemoveExport, ARGS_ONE,
 234              [DEBUG_OPT],
 235              "<name>",
 236              "Remove exports of named instance from the filesystem."),
 237   }
 238
 239 if __name__ == '__main__':
 240   sys.exit(GenericMain(commands))