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#!/usr/bin/python |
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# |
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# Copyright (C) 2006, 2007 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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|
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|
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import sys |
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from optparse import make_option |
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|
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from ganeti.cli import * |
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from ganeti import cmdlib |
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from ganeti import opcodes |
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from ganeti import constants |
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|
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|
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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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|
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Args: |
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opts - class with options as members (should be empty) |
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args - should be empty |
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|
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Returns: |
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nothing |
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|
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""" |
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op = opcodes.OpQueryExports(nodes=opts.nodes) |
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exports = SubmitOpCode(op) |
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for node in exports: |
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print ("Node: %s" % node) |
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print ("Exports:") |
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if isinstance(exports[node], list): |
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for instance_name in exports[node]: |
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print ("\t%s" % instance_name) |
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else: |
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print (" Could not get exports list") |
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|
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|
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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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|
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Args: |
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opts - class with options as members |
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args - list with a single element, the instance name |
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|
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Returns: |
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1 in case of error, 0 otherwise |
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|
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""" |
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op = opcodes.OpExportInstance(instance_name=args[0], |
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target_node=opts.node, |
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shutdown=opts.shutdown) |
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|
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SubmitOpCode(op) |
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|
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|
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def ImportInstance(opts, args): |
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"""Add an instance to the cluster. |
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|
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Args: |
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opts - class with options as members |
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args - list with a single element, the new instance name |
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Opts used: |
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memory - amount of memory to allocate to instance (MiB) |
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size - amount of disk space to allocate to instance (MiB) |
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os - which OS to run on instance |
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node - node to run new instance on |
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src_node - node containing the export |
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src_dir - directory on the old node with the export in it |
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|
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Returns: |
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1 in case of error, 0 otherwise |
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|
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""" |
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instance = args[0] |
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|
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(pnode, snode) = SplitNodeOption(opts.node) |
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|
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op = opcodes.OpCreateInstance(instance_name=instance, mem_size=opts.mem, |
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disk_size=opts.size, swap_size=opts.swap, |
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disk_template=opts.disk_template, |
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mode=constants.INSTANCE_IMPORT, |
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pnode=pnode, snode=snode, |
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vcpus=opts.vcpus, ip_check=opts.ip_check, |
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ip=opts.ip, bridge=opts.bridge, start=False, |
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src_node=opts.src_node, src_path=opts.src_dir, |
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wait_for_sync=opts.wait_for_sync, mac="auto", |
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file_storage_dir=opts.file_storage_dir, |
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file_driver=opts.file_driver, |
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iallocator=opts.iallocator) |
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SubmitOpCode(op) |
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return 0 |
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|
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|
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def RemoveExport(opts, args): |
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"""Remove an export from the cluster. |
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|
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Args: |
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opts - class with options as members |
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args - list with a single element, the exported instance to remove |
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Opts used: |
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|
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Returns: |
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1 in case of error, 0 otherwise |
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|
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""" |
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instance = args[0] |
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op = opcodes.OpRemoveExport(instance_name=args[0]) |
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|
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SubmitOpCode(op) |
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return 0 |
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|
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|
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# this is defined separately due to readability only |
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import_opts = [ |
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DEBUG_OPT, |
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make_option("-n", "--node", dest="node", |
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help="Target node and optional secondary node", |
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metavar="<pnode>[:<snode>]"), |
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cli_option("-s", "--os-size", dest="size", help="Disk size, in MiB unless" |
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" a suffix is used", |
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default=20 * 1024, type="unit", metavar="<size>"), |
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cli_option("--swap-size", dest="swap", help="Swap size", |
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default=4 * 1024, type="unit", metavar="<size>"), |
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cli_option("-m", "--memory", dest="mem", help="Memory size", |
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default=128, type="unit", metavar="<mem>"), |
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make_option("-p", "--cpu", dest="vcpus", help="Number of virtual CPUs", |
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default=1, type="int", metavar="<PROC>"), |
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make_option("-t", "--disk-template", dest="disk_template", |
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help="Custom disk setup (diskless, file, plain, drbd)" |
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default=None, metavar="TEMPL"), |
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make_option("-i", "--ip", dest="ip", |
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help="IP address ('none' [default], 'auto', or specify address)", |
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default='none', type="string", metavar="<ADDRESS>"), |
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make_option("--no-wait-for-sync", dest="wait_for_sync", default=True, |
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action="store_false", help="Don't wait for sync (DANGEROUS!)"), |
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make_option("-b", "--bridge", dest="bridge", |
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help="Bridge to connect this instance to", |
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default=None, metavar="<bridge>"), |
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make_option("--src-node", dest="src_node", help="Source node", |
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metavar="<node>"), |
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make_option("--src-dir", dest="src_dir", help="Source directory", |
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metavar="<dir>"), |
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make_option("--no-ip-check", dest="ip_check", default=True, |
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action="store_false", help="Don't check that the instance's IP" |
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" is alive"), |
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make_option("--iallocator", metavar="<NAME>", |
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help="Select nodes for the instance automatically using the" |
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" <NAME> iallocator plugin", default=None, type="string"), |
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make_option("--file-storage-dir", dest="file_storage_dir", |
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help="Relative path under default cluster-wide file storage dir" |
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" to store file-based disks", default=None, |
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metavar="<DIR>"), |
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make_option("--file-driver", dest="file_driver", help="Driver to use" |
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" for image files", default="loop", metavar="<DRIVER>"), |
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] |
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|
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commands = { |
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'list': (PrintExportList, ARGS_NONE, |
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[DEBUG_OPT, |
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make_option("--node", dest="nodes", default=[], action="append", |
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help="List only backups stored on this node" |
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" (can be used multiple times)"), |
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], |
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"", "Lists instance exports available in the ganeti cluster"), |
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'export': (ExportInstance, ARGS_ONE, |
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[DEBUG_OPT, FORCE_OPT, |
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make_option("-n", "--node", dest="node", help="Target node", |
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metavar="<node>"), |
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make_option("","--noshutdown", dest="shutdown", |
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action="store_false", default=True, |
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help="Don't shutdown the instance (unsafe)"), ], |
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"-n <target_node> [opts...] <name>", |
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"Exports an instance to an image"), |
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'import': (ImportInstance, ARGS_ONE, import_opts, |
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("[...] -t disk-type -n node[:secondary-node]" |
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" --src-node node --src-dir dir" |
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" <name>"), |
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"Imports an instance from an exported image"), |
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'remove': (RemoveExport, ARGS_ONE, |
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[DEBUG_OPT], |
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"<name>", |
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"Remove exports of named instance from the filesystem."), |
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} |
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|
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if __name__ == '__main__': |
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sys.exit(GenericMain(commands)) |