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#!/usr/bin/python -tt
#
# Copyright(c) FUJITSU Limited 2007.
#
# Script to set up an cloning guest configuration and kick off an cloning
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA.
import sys
import logging
import virtinst.CloneManager as clmgr
import urlgrabber.progress as progress
import optparse
from optparse import OptionGroup
import virtinst.cli as cli
from virtinst.cli import fail, print_stdout, print_stderr
from virtinst.User import User
cli.setupGettext()
### General input gathering functions
def get_clone_name(new_name, auto_clone, design):
if not new_name and auto_clone:
# Generate a name to use
new_name = clmgr.generate_clone_name(design)
logging.debug("Auto-generated clone name '%s'", new_name)
prompt_txt = _("What is the name for the cloned virtual machine?")
err_txt = _("A name is required for the new virtual machine.")
cli.prompt_loop(prompt_txt, err_txt, new_name, design, "clone_name")
def get_original_guest(guest_name, origfile, design):
origxml = None
if origfile:
f = open(origfile, "r")
origxml = f.read()
f.close()
try:
design.original_xml = origxml
return
except (ValueError, RuntimeError), e:
fail(e)
prompt_txt = _("What is the name of the original virtual machine?")
err_txt = _("An original machine name or xml file is required.")
cli.prompt_loop(prompt_txt, err_txt,
guest_name, design, "original_guest")
def get_clone_macaddr(new_mac, design):
if new_mac is None:
pass
elif new_mac[0] == "RANDOM":
new_mac = None
else:
for i in new_mac:
design.clone_mac = i
def get_clone_uuid(new_uuid, design):
if new_uuid is not None:
design.clone_uuid = new_uuid
def get_clone_diskfile(new_diskfiles, design, conn, preserve=False,
auto_clone=False):
if new_diskfiles is None:
new_diskfiles = [None]
conn = design.original_conn
newidx = 0
for origdev in design.original_devices:
if len(new_diskfiles) <= newidx:
# Extend the new/passed paths list with None if it's not
# long enough
new_diskfiles.append(None)
disk = new_diskfiles[newidx]
if disk is None and auto_clone:
disk = clmgr.generate_clone_disk_path(origdev, design)
if origdev is None:
devpath = None
else:
dev = _check_disk(conn, disk, origdev, preserve)
devpath = dev.path
design.clone_devices = devpath
newidx += 1
def _check_disk(conn, clone_path, orig_path, preserve):
prompt_txt = (_("What would you like to use as the cloned disk "
"(file path) for '%s'?") % orig_path)
return cli.disk_prompt(conn, clone_path, .00001, False,
prompt_txt,
warn_overwrite=not preserve,
check_size=False,
path_to_clone=orig_path)
def get_clone_sparse(sparse, design):
design.clone_sparse = sparse
def get_preserve(preserve, design):
design.preserve = preserve
def get_force_target(target, design):
for i in target or []:
design.force_target = i
def parse_args():
parser = cli.setupParser()
cli.add_connect_option(parser)
geng = OptionGroup(parser, _("General Options"))
geng.add_option("-o", "--original", dest="original_guest",
help=_("Name of the original guest; "
"The status must be shut off or paused."))
geng.add_option("", "--original-xml", dest="original_xml",
help=_("XML file to use as the original guest."))
geng.add_option("", "--auto-clone", dest="auto_clone", action="store_true",
help=_("Auto generate clone name and storage paths from"
" the original guest configuration."))
geng.add_option("-n", "--name", dest="new_name",
help=_("Name for the new guest"))
geng.add_option("-u", "--uuid", dest="new_uuid",
help=_("New UUID for the clone guest; Default is a "
"randomly generated UUID"))
parser.add_option_group(geng)
stog = OptionGroup(parser, _("Storage Configuration"))
stog.add_option("-f", "--file", dest="new_diskfile", action="append",
help=_("New file to use as the disk image for the "
"new guest"))
stog.add_option("", "--force-copy", dest="target", action="append",
help=_("Force to copy devices (eg, if 'hdc' is a "
"readonly cdrom device, --force-copy=hdc)"))
stog.add_option("", "--nonsparse", action="store_false", dest="sparse",
default=True,
help=_("Do not use a sparse file for the clone's "
"disk image"))
stog.add_option("", "--preserve-data", action="store_false",
dest="preserve", default=True,
help=_("Do not clone storage, new disk images specified "
"via --file are preserved unchanged"))
parser.add_option_group(stog)
netg = OptionGroup(parser, _("Networking Configuration"))
netg.add_option("-m", "--mac", dest="new_mac", action="append",
help=_("New fixed MAC address for the clone guest. "
"Default is a randomly generated MAC"))
parser.add_option_group(netg)
misc = OptionGroup(parser, _("Miscellaneous Options"))
misc.add_option("", "--print-xml", action="store_true", dest="xmlonly",
help=_("Print the generated domain XML rather than define "
"and clone the guest."))
misc.add_option("", "--replace", action="store_true", dest="replace",
help=_("Don't check for name collision. Allows replacing "
"an existing guest with the new clone"))
misc.add_option("-d", "--debug", action="store_true", dest="debug",
help=_("Print debugging information"))
misc.add_option("", "--prompt", action="store_true", dest="prompt",
default=False,
help=_("Request user input for ambiguous situations or "
"required options."))
misc.add_option("", "--force", action="store_true", dest="force",
default=False,
help=_("Do not prompt for input. Answers yes where "
"applicable, terminates for all other prompts"))
misc.add_option("-q", "--quiet", action="store_true", dest="quiet",
help=_("Suppress non-error output"))
misc.add_option("", "--clone-running", action="store_true",
dest="clone_running", default=False,
help=optparse.SUPPRESS_HELP)
parser.add_option_group(misc)
(options, parseargs) = parser.parse_args()
return options, parseargs
### Let's do it!
def main(conn=None):
cli.earlyLogging()
options, parseargs = parse_args()
options.quiet = options.quiet or options.xmlonly
cli.setupLogging("virt-clone", options.debug, options.quiet)
if parseargs:
fail(_("Unknown argument '%s'") % parseargs[0])
cli.set_prompt(options.prompt)
cli.set_force(options.force)
if conn is None:
conn = cli.getConnection(options.connect)
if not User.current().has_priv(User.PRIV_CLONE, conn.getURI()):
fail(_("Must be privileged to clone Xen guests"))
design = clmgr.CloneDesign(conn=conn)
design.clone_running = options.clone_running
design.replace = bool(options.replace)
get_original_guest(options.original_guest, options.original_xml,
design)
get_clone_name(options.new_name, options.auto_clone, design)
get_clone_macaddr(options.new_mac, design)
get_clone_uuid(options.new_uuid, design)
get_clone_sparse(options.sparse, design)
get_force_target(options.target, design)
get_preserve(options.preserve, design)
# This determines the devices that need to be cloned, so that
# get_clone_diskfile knows how many new disk paths it needs
design.setup_original()
get_clone_diskfile(options.new_diskfile, design, conn,
not options.preserve, options.auto_clone)
# setup design object
design.setup_clone()
if options.xmlonly:
print_stdout(design.clone_xml, do_force=True)
else:
# start cloning
meter = progress.TextMeter(fo=sys.stdout)
clmgr.start_duplicate(design, meter)
print_stdout("")
print_stdout(_("Clone '%s' created successfully.") % design.clone_name)
logging.debug("end clone")
return 0
if __name__ == "__main__":
try:
sys.exit(main())
except SystemExit, sys_e:
sys.exit(sys_e.code)
except KeyboardInterrupt:
print_stderr(_("Installation aborted at user request"))
except Exception, main_e:
fail(main_e)
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