virt-manager/virtinst/cli.py

1906 lines
56 KiB
Python

#
# Utility functions for the command line drivers
#
# Copyright 2006-2007, 2013 Red Hat, Inc.
# Jeremy Katz <katzj@redhat.com>
#
# 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 locale
import logging
import logging.handlers
import optparse
import os
import shlex
import sys
import traceback
import libvirt
from virtcli import cliconfig
import virtinst
from virtinst import util
MIN_RAM = 64
force = False
quiet = False
doprompt = True
####################
# CLI init helpers #
####################
class VirtStreamHandler(logging.StreamHandler):
def emit(self, record):
"""
Based on the StreamHandler code from python 2.6: ripping out all
the unicode handling and just uncoditionally logging seems to fix
logging backtraces with unicode locales (for me at least).
No doubt this is atrocious, but it WORKSFORME!
"""
try:
msg = self.format(record)
stream = self.stream
fs = "%s\n"
stream.write(fs % msg)
self.flush()
except (KeyboardInterrupt, SystemExit):
raise
except:
self.handleError(record)
class VirtOptionParser(optparse.OptionParser):
'''Subclass to get print_help to work properly with non-ascii text'''
def _get_encoding(self, f):
encoding = getattr(f, "encoding", None)
if not encoding:
encoding = locale.getlocale()[1]
if not encoding:
encoding = "UTF-8"
return encoding
def print_help(self, file=None):
# pylint: disable=W0622
# Redefining built in type 'file'
if file is None:
file = sys.stdout
encoding = self._get_encoding(file)
helpstr = self.format_help()
try:
encodedhelp = helpstr.encode(encoding, "replace")
except UnicodeError:
# I don't know why the above fails hard, unicode makes my head
# spin. Just printing the format_help() output seems to work
# quite fine, with the occasional character ?.
encodedhelp = helpstr
file.write(encodedhelp)
class VirtHelpFormatter(optparse.IndentedHelpFormatter):
"""
Subclass the default help formatter to allow printing newline characters
in --help output. The way we do this is a huge hack :(
Inspiration: http://groups.google.com/group/comp.lang.python/browse_thread/thread/6df6e6b541a15bc2/09f28e26af0699b1
"""
oldwrap = None
def format_option(self, option):
self.oldwrap = optparse.textwrap.wrap
ret = []
try:
optparse.textwrap.wrap = self._textwrap_wrapper
ret = optparse.IndentedHelpFormatter.format_option(self, option)
finally:
optparse.textwrap.wrap = self.oldwrap
return ret
def _textwrap_wrapper(self, text, width):
ret = []
for line in text.split("\n"):
ret.extend(self.oldwrap(line, width))
return ret
def setupParser(usage, description):
parse_class = VirtOptionParser
parser = parse_class(usage=usage, description=description,
formatter=VirtHelpFormatter(),
version=cliconfig.__version__)
parser.epilog = _("See man page for examples and full option syntax.")
return parser
def earlyLogging():
logging.basicConfig(level=logging.DEBUG, format='%(message)s')
def setupLogging(appname, debug_stdout, do_quiet, cli_app=True):
global quiet
quiet = do_quiet
vi_dir = None
if not "VIRTINST_TEST_SUITE" in os.environ:
vi_dir = util.get_cache_dir()
if vi_dir and not os.access(vi_dir, os.W_OK):
if os.path.exists(vi_dir):
raise RuntimeError("No write access to directory %s" % vi_dir)
try:
os.makedirs(vi_dir, 0751)
except IOError, e:
raise RuntimeError("Could not create directory %s: %s" %
(vi_dir, e))
dateFormat = "%a, %d %b %Y %H:%M:%S"
fileFormat = ("[%(asctime)s " + appname + " %(process)d] "
"%(levelname)s (%(module)s:%(lineno)d) %(message)s")
streamErrorFormat = "%(levelname)-8s %(message)s"
rootLogger = logging.getLogger()
# Undo early logging
for handler in rootLogger.handlers:
rootLogger.removeHandler(handler)
rootLogger.setLevel(logging.DEBUG)
if vi_dir:
filename = os.path.join(vi_dir, appname + ".log")
fileHandler = logging.handlers.RotatingFileHandler(filename, "ae",
1024 * 1024, 5)
fileHandler.setFormatter(logging.Formatter(fileFormat,
dateFormat))
rootLogger.addHandler(fileHandler)
streamHandler = VirtStreamHandler(sys.stderr)
if debug_stdout:
streamHandler.setLevel(logging.DEBUG)
streamHandler.setFormatter(logging.Formatter(fileFormat,
dateFormat))
elif not cli_app:
streamHandler = None
else:
if quiet:
level = logging.ERROR
else:
level = logging.WARN
streamHandler.setLevel(level)
streamHandler.setFormatter(logging.Formatter(streamErrorFormat))
if streamHandler:
rootLogger.addHandler(streamHandler)
# Register libvirt handler
def libvirt_callback(ignore, err):
if err[3] != libvirt.VIR_ERR_ERROR:
# Don't log libvirt errors: global error handler will do that
logging.warn("Non-error from libvirt: '%s'", err[2])
libvirt.registerErrorHandler(f=libvirt_callback, ctx=None)
# Log uncaught exceptions
def exception_log(typ, val, tb):
logging.debug("Uncaught exception:\n%s",
"".join(traceback.format_exception(typ, val, tb)))
sys.__excepthook__(typ, val, tb)
sys.excepthook = exception_log
# Log the app command string
logging.debug("Launched with command line: %s", " ".join(sys.argv))
#######################################
# Libvirt connection helpers #
#######################################
def getConnection(uri):
logging.debug("Requesting libvirt URI %s", (uri or "default"))
conn = virtinst.VirtualConnection(uri)
conn.open(_do_creds_authname)
conn.cache_object_fetch = True
logging.debug("Received libvirt URI %s", conn.uri)
return conn
# SASL username/pass auth
def _do_creds_authname(creds):
retindex = 4
for cred in creds:
credtype, prompt, ignore, ignore, ignore = cred
prompt += ": "
res = cred[retindex]
if credtype == libvirt.VIR_CRED_AUTHNAME:
res = raw_input(prompt)
elif credtype == libvirt.VIR_CRED_PASSPHRASE:
import getpass
res = getpass.getpass(prompt)
else:
raise RuntimeError("Unknown auth type in creds callback: %d" %
credtype)
cred[retindex] = res
return 0
##############################
# Misc CLI utility functions #
##############################
def fail(msg, do_exit=True):
"""
Convenience function when failing in cli app
"""
logging.error(msg)
if traceback.format_exc().strip() != "None":
logging.debug("", exc_info=True)
if do_exit:
_fail_exit()
def print_stdout(msg, do_force=False):
if do_force or not quiet:
print msg
def print_stderr(msg):
logging.debug(msg)
print >> sys.stderr, msg
def _fail_exit():
sys.exit(1)
def nice_exit():
print_stdout(_("Exiting at user request."))
sys.exit(0)
def virsh_start_cmd(guest):
return ("virsh --connect %s start %s" % (guest.conn.uri, guest.name))
def install_fail(guest):
virshcmd = virsh_start_cmd(guest)
print_stderr(
_("Domain installation does not appear to have been successful.\n"
"If it was, you can restart your domain by running:\n"
" %s\n"
"otherwise, please restart your installation.") % virshcmd)
sys.exit(1)
#######################
# CLI Prompting utils #
#######################
def set_force(val=True):
global force
force = val
def set_prompt(prompt):
# Set whether we allow prompts, or fail if a prompt pops up
global doprompt
doprompt = prompt
if prompt:
logging.warning("--prompt mode is barely supported and likely to "
"be removed in a future release.\n")
def is_prompt():
return doprompt
def _yes_no_convert(s):
tvalues = ["y", "yes", "1", "true", "t", "on"]
fvalues = ["n", "no", "0", "false", "f", "off"]
s = (s or "").lower()
if s in tvalues:
return True
elif s in fvalues:
return False
return None
def _on_off_convert(key, val):
val = _yes_no_convert(val)
if val is not None:
return val
raise fail(_("%(key)s must be 'yes' or 'no'") % {"key": key})
def prompt_for_input(noprompt_err, prompt="", val=None, failed=False):
if val is not None:
return val
if force or not is_prompt():
if failed:
# We already failed validation in a previous function, just exit
_fail_exit()
fail(noprompt_err)
print_stdout(prompt + " ", do_force=True)
sys.stdout.flush()
return sys.stdin.readline().strip()
def prompt_for_yes_no(warning, question):
"""catches yes_no errors and ensures a valid bool return"""
if force:
logging.debug("Forcing return value of True to prompt '%s'")
return True
errmsg = warning + _(" (Use --force to override)")
while 1:
msg = warning
if question:
msg += ("\n" + question)
inp = prompt_for_input(errmsg, msg, None)
try:
res = _yes_no_convert(inp)
if res is None:
raise ValueError(_("A yes or no response is required"))
break
except ValueError, e:
logging.error(e)
continue
return res
def prompt_loop(prompt_txt, noprompt_err, passed_val, obj, param_name,
err_txt="%s", func=None):
"""
Prompt the user with 'prompt_txt' for a value. Set 'obj'.'param_name'
to the entered value. If it errors, use 'err_txt' to print a error
message, and then re prompt.
"""
failed = False
while True:
passed_val = prompt_for_input(noprompt_err, prompt_txt, passed_val,
failed)
try:
if func:
return func(passed_val)
setattr(obj, param_name, passed_val)
break
except (ValueError, RuntimeError), e:
logging.error(err_txt, e)
passed_val = None
failed = True
# Specific function for disk prompting. Returns a validated VirtualDisk
def disk_prompt(conn, origpath, origsize, origsparse,
prompt_txt=None,
warn_overwrite=False, check_size=True,
path_to_clone=None, origdev=None):
askmsg = _("Do you really want to use this disk (yes or no)")
retry_path = True
no_path_needed = (origdev and
(origdev.get_vol_install() or
origdev.get_vol_object() or
origdev.can_be_empty()))
def prompt_path(chkpath, chksize):
"""
Prompt for disk path if nec
"""
msg = None
patherr = _("A disk path must be specified.")
if path_to_clone:
patherr = (_("A disk path must be specified to clone '%s'.") %
path_to_clone)
if not prompt_txt:
msg = _("What would you like to use as the disk (file path)?")
if not chksize is None:
msg = _("Please enter the path to the file you would like to "
"use for storage. It will have size %sGB.") % chksize
if not no_path_needed:
path = prompt_for_input(patherr, prompt_txt or msg, chkpath)
else:
path = None
return path
def prompt_size(chkpath, chksize, path_exists):
"""
Prompt for disk size if nec.
"""
sizeerr = _("A size must be specified for non-existent disks.")
size_prompt = _("How large would you like the disk (%s) to "
"be (in gigabytes)?") % chkpath
if (not chkpath or
path_exists or
chksize is not None or
not check_size):
return False, chksize
try:
chksize = prompt_loop(size_prompt, sizeerr, chksize, None, None,
func=float)
return False, chksize
except Exception, e:
# Path is probably bogus, raise the error
fail(str(e), do_exit=not is_prompt())
return True, chksize
def prompt_path_exists(dev):
"""
Prompt if disk file already exists and preserve mode is not used
"""
does_collide = (path_exists and
dev.type == dev.TYPE_FILE and
dev.device == dev.DEVICE_DISK)
msg = (_("This will overwrite the existing path '%s'" % dev.path))
if not does_collide:
return False
if warn_overwrite or is_prompt():
return not prompt_for_yes_no(msg, askmsg)
return False
def prompt_inuse_conflict(dev):
"""
Check if disk is inuse by another guest
"""
names = dev.is_conflict_disk(conn)
if not names:
return False
msg = (_("Disk %s is already in use by other guests %s." %
(dev.path, names)))
return not prompt_for_yes_no(msg, askmsg)
def prompt_size_conflict(dev):
"""
Check if specified size exceeds available storage
"""
isfatal, errmsg = dev.is_size_conflict()
if isfatal:
fail(errmsg, do_exit=not is_prompt())
return True
if errmsg:
return not prompt_for_yes_no(errmsg, askmsg)
return False
while 1:
# If we fail within the loop, reprompt for size and path
if not retry_path:
origpath = None
if not path_to_clone:
origsize = None
retry_path = False
# Get disk path
path = prompt_path(origpath, origsize)
path_exists = virtinst.VirtualDisk.path_exists(conn, path)
# Get storage size
didfail, size = prompt_size(path, origsize, path_exists)
if didfail:
continue
# Build disk object for validation
try:
if origdev:
dev = origdev
if path is not None and path != dev.path:
dev.path = path
if size is not None and size != dev.get_size():
dev.set_create_storage(size=size, sparse=origsparse)
else:
dev = virtinst.VirtualDisk(conn)
dev.path = path
dev.set_create_storage(size=size, sparse=origsparse)
dev.validate()
except ValueError, e:
if is_prompt():
logging.error(e)
continue
else:
fail(_("Error with storage parameters: %s" % str(e)))
# Check if path exists
if prompt_path_exists(dev):
continue
# Check disk in use by other guests
if prompt_inuse_conflict(dev):
continue
# Check if disk exceeds available storage
if prompt_size_conflict(dev):
continue
# Passed all validation, return disk instance
return dev
#######################
# Validation wrappers #
#######################
name_missing = _("--name is required")
ram_missing = _("--ram amount in MB is required")
def get_name(guest, name):
prompt_txt = _("What is the name of your virtual machine?")
err_txt = name_missing
prompt_loop(prompt_txt, err_txt, name, guest, "name")
def get_memory(guest, memory):
prompt_txt = _("How much RAM should be allocated (in megabytes)?")
err_txt = ram_missing
def check_memory(mem):
mem = int(mem)
if mem < MIN_RAM:
raise ValueError(_("Installs currently require %d megs "
"of RAM.") % MIN_RAM)
guest.memory = mem * 1024
prompt_loop(prompt_txt, err_txt, memory, guest, "memory",
func=check_memory)
def get_uuid(guest, uuid):
if not uuid:
return
try:
guest.uuid = uuid
except ValueError, e:
fail(e)
def get_vcpus(guest, vcpus, check_cpu):
if vcpus is None:
vcpus = ""
parse_vcpu(guest, vcpus)
if not check_cpu:
return
hostinfo = guest.conn.getInfo()
pcpus = hostinfo[4] * hostinfo[5] * hostinfo[6] * hostinfo[7]
if guest.vcpus > pcpus:
msg = _("You have asked for more virtual CPUs (%d) than there "
"are physical CPUs (%d) on the host. This will work, "
"but performance will be poor. ") % (guest.vcpus, pcpus)
askmsg = _("Are you sure? (yes or no)")
if not prompt_for_yes_no(msg, askmsg):
nice_exit()
def get_cpuset(guest, cpuset):
memory = guest.memory
conn = guest.conn
if cpuset and cpuset != "auto":
guest.cpuset = cpuset
elif cpuset == "auto":
tmpset = None
try:
tmpset = virtinst.DomainNumatune.generate_cpuset(conn, memory)
except Exception, e:
logging.debug("Not setting cpuset: %s", str(e))
if tmpset:
logging.debug("Auto cpuset is: %s", tmpset)
guest.cpuset = tmpset
return
def _default_network_opts(guest):
opts = ""
if (guest.conn.is_qemu_session() or guest.conn.is_test()):
opts = "user"
else:
net = util.default_network(guest.conn)
opts = "%s=%s" % (net[0], net[1])
return opts
def convert_old_networks(guest, options, number_of_default_nics):
macs = util.listify(options.mac)
networks = util.listify(options.network)
bridges = util.listify(options.bridge)
if bridges and networks:
fail(_("Cannot mix both --bridge and --network arguments"))
if bridges:
# Convert old --bridges to --networks
networks = ["bridge:" + b for b in bridges]
def padlist(l, padsize):
l = util.listify(l)
l.extend((padsize - len(l)) * [None])
return l
# If a plain mac is specified, have it imply a default network
networks = padlist(networks, max(len(macs), number_of_default_nics))
macs = padlist(macs, len(networks))
for idx in range(len(networks)):
if networks[idx] is None:
networks[idx] = _default_network_opts(guest)
if macs[idx]:
networks[idx] += ",mac=%s" % macs[idx]
# Handle old format of bridge:foo instead of bridge=foo
for prefix in ["network", "bridge"]:
if networks[idx].startswith(prefix + ":"):
networks[idx] = networks[idx].replace(prefix + ":",
prefix + "=")
options.network = networks
def _determine_default_graphics(guest, default_override):
if default_override is True:
return "default"
elif default_override is False:
return "none"
if guest.os.is_container():
logging.debug("Container guest, defaulting to nographics")
return "none"
if "DISPLAY" not in os.environ.keys():
logging.debug("DISPLAY is not set: defaulting to nographics.")
return "none"
logging.debug("DISPLAY is set: using default graphics")
return "default"
def convert_old_graphics(guest, options, default_override=None):
vnc = options.vnc
vncport = options.vncport
vnclisten = options.vnclisten
nographics = options.nographics
sdl = options.sdl
keymap = options.keymap
graphics = options.graphics
if graphics and (vnc or sdl or keymap or vncport or vnclisten):
fail(_("Cannot mix --graphics and old style graphical options"))
optnum = sum([bool(g) for g in [vnc, nographics, sdl, graphics]])
if optnum > 1:
raise ValueError(_("Can't specify more than one of VNC, SDL, "
"--graphics or --nographics"))
if options.graphics:
return
if optnum == 0:
options.graphics = [_determine_default_graphics(guest,
default_override)]
return
# Build a --graphics command line from old style opts
optstr = ((vnc and "vnc") or
(sdl and "sdl") or
(nographics and ("none")))
if vnclisten:
optstr += ",listen=%s" % vnclisten
if vncport:
optstr += ",port=%s" % vncport
if keymap:
optstr += ",keymap=%s" % keymap
logging.debug("--graphics compat generated: %s", optstr)
options.graphics = [optstr]
def convert_old_features(options):
if getattr(options, "features", None):
return
opts = ""
if options.noacpi:
opts += "acpi=off"
if options.noapic:
if opts:
opts += ","
opts += "apic=off"
options.features = opts or None
def set_os_variant(obj, distro_type, distro_variant):
# This is used for both Guest and virtconv VM, so be careful
if (not distro_type and
not distro_variant and
hasattr(obj, "os_autodetect")):
# Default to distro autodetection
obj.os_autodetect = True
return
distro_variant = distro_variant and str(distro_variant).lower() or None
distro_type = distro_type and str(distro_type).lower() or None
distkey = distro_variant or distro_type
if not distkey or distkey == "none":
return
obj.os_variant = distkey
#############################
# Common CLI option/group #
#############################
def add_connect_option(parser):
parser.add_option("--connect", metavar="URI", dest="connect",
help=_("Connect to hypervisor with libvirt URI"))
def add_misc_options(grp, prompt=False, replace=False,
printxml=False, printstep=False,
noreboot=False, dryrun=False):
if prompt:
grp.add_option("--prompt", action="store_true", dest="prompt",
default=False, help=optparse.SUPPRESS_HELP)
grp.add_option("--force", action="store_true", dest="force",
default=False, help=optparse.SUPPRESS_HELP)
if noreboot:
grp.add_option("--noreboot", action="store_true", dest="noreboot",
help=_("Don't boot guest after completing install."))
if replace:
grp.add_option("--replace", action="store_true", dest="replace",
help=_("Don't check name collision, overwrite any guest "
"with the same name."))
if printxml:
grp.add_option("--print-xml", action="store_true", dest="xmlonly",
help=_("Print the generated domain XML rather than define "
"and clone the guest."))
if printstep:
grp.add_option("--print-step", type="str", dest="xmlstep",
help=_("Print XML of a specific install step "
"(1, 2, 3, all) rather than define the guest."))
if dryrun:
grp.add_option("--dry-run", action="store_true", dest="dry",
help=_("Run through install process, but do not "
"create devices or define the guest."))
grp.add_option("-q", "--quiet", action="store_true", dest="quiet",
help=_("Suppress non-error output"))
grp.add_option("-d", "--debug", action="store_true", dest="debug",
help=_("Print debugging information"))
def vcpu_cli_options(grp, backcompat=True):
grp.add_option("--vcpus", dest="vcpus",
help=_("Number of vcpus to configure for your guest. Ex:\n"
"--vcpus 5\n"
"--vcpus 5,maxcpus=10\n"
"--vcpus sockets=2,cores=4,threads=2"))
grp.add_option("--cpuset", dest="cpuset",
help=_("Set which physical CPUs domain can use."))
grp.add_option("--cpu", dest="cpu",
help=_("CPU model and features. Ex: --cpu coreduo,+x2apic"))
if backcompat:
grp.add_option("--check-cpu", action="store_true",
dest="check_cpu", help=optparse.SUPPRESS_HELP)
def graphics_option_group(parser):
"""
Register vnc + sdl options for virt-install and virt-image
"""
vncg = optparse.OptionGroup(parser, _("Graphics Configuration"))
add_gfx_option(vncg)
vncg.add_option("--vnc", action="store_true", dest="vnc",
help=optparse.SUPPRESS_HELP)
vncg.add_option("--vncport", type="int", dest="vncport",
help=optparse.SUPPRESS_HELP)
vncg.add_option("--vnclisten", dest="vnclisten",
help=optparse.SUPPRESS_HELP)
vncg.add_option("-k", "--keymap", dest="keymap",
help=optparse.SUPPRESS_HELP)
vncg.add_option("--sdl", action="store_true", dest="sdl",
help=optparse.SUPPRESS_HELP)
vncg.add_option("--nographics", action="store_true",
help=optparse.SUPPRESS_HELP)
return vncg
def network_option_group(parser):
"""
Register common network options for virt-install and virt-image
"""
netg = optparse.OptionGroup(parser, _("Networking Configuration"))
add_net_option(netg)
# Deprecated net options
netg.add_option("-b", "--bridge", dest="bridge", action="append",
help=optparse.SUPPRESS_HELP)
netg.add_option("-m", "--mac", dest="mac", action="append",
help=optparse.SUPPRESS_HELP)
return netg
def add_net_option(devg):
devg.add_option("-w", "--network", dest="network", action="append",
help=_("Configure a guest network interface. Ex:\n"
"--network bridge=mybr0\n"
"--network network=my_libvirt_virtual_net\n"
"--network network=mynet,model=virtio,mac=00:11...\n"
"--network network=mynet,filterref=clean-traffic,model=virtio"))
def add_device_options(devg):
devg.add_option("--controller", dest="controller", action="append",
help=_("Configure a guest controller device. Ex:\n"
"--controller type=usb,model=ich9-ehci1"))
devg.add_option("--serial", dest="serials", action="append",
help=_("Configure a guest serial device"))
devg.add_option("--parallel", dest="parallels", action="append",
help=_("Configure a guest parallel device"))
devg.add_option("--channel", dest="channels", action="append",
help=_("Configure a guest communication channel"))
devg.add_option("--console", dest="consoles", action="append",
help=_("Configure a text console connection between "
"the guest and host"))
devg.add_option("--host-device", dest="hostdevs", action="append",
help=_("Configure physical host devices attached to the "
"guest"))
devg.add_option("--soundhw", dest="sound", action="append",
help=_("Configure guest sound device emulation"))
devg.add_option("--watchdog", dest="watchdog", action="append",
help=_("Configure a guest watchdog device"))
devg.add_option("--video", dest="video", action="append",
help=_("Configure guest video hardware."))
devg.add_option("--smartcard", dest="smartcard", action="append",
help=_("Configure a guest smartcard device. Ex:\n"
"--smartcard mode=passthrough"))
devg.add_option("--redirdev", dest="redirdev", action="append",
help=_("Configure a guest redirection device. Ex:\n"
"--redirdev usb,type=tcp,server=192.168.1.1:4000"))
devg.add_option("--memballoon", dest="memballoon", action="append",
help=_("Configure a guest memballoon device. Ex:\n"
"--memballoon model=virtio"))
devg.add_option("--tpm", dest="tpm", action="append",
help=_("Configure a guest TPM device. Ex:\n"
"--tpm /dev/tpm"))
devg.add_option("--rng", dest="rng", action="append",
help=_("Configure a guest RNG device. Ex:\n"
"--rng /dev/random\n"
"--rng egd,backend_host=localhost,backend_service=708,backend_type=tcp"))
def add_gfx_option(devg):
devg.add_option("--graphics", dest="graphics", action="append",
help=_("Configure guest display settings. Ex:\n"
"--graphics vnc\n"
"--graphics spice,port=5901,tlsport=5902\n"
"--graphics none\n"
"--graphics vnc,password=foobar,port=5910,keymap=ja"))
def add_fs_option(devg):
devg.add_option("--filesystem", dest="filesystems", action="append",
help=_("Pass host directory to the guest. Ex: \n"
"--filesystem /my/source/dir,/dir/in/guest\n"
"--filesystem template_name,/,type=template"))
def add_distro_options(g):
# Way back when, we required specifying both --os-type and --os-variant
# Nowadays the distinction is pointless, so hide the less useful
# --os-type option.
g.add_option("--os-type", dest="distro_type",
help=optparse.SUPPRESS_HELP)
g.add_option("--os-variant", dest="distro_variant",
help=_("The OS variant being installed guests, "
"e.g. 'fedora18', 'rhel6', 'winxp', etc."))
def add_old_feature_options(optg):
optg.add_option("--noapic", action="store_true", dest="noapic",
default=False, help=optparse.SUPPRESS_HELP)
optg.add_option("--noacpi", action="store_true", dest="noacpi",
default=False, help=optparse.SUPPRESS_HELP)
#############################################
# CLI complex parsing helpers #
# (for options like --disk, --network, etc. #
#############################################
def _handle_dev_opts(devclass, cb, guest, opts):
for optstr in util.listify(opts):
devtype = devclass.virtual_device_type
try:
dev = devclass(guest.conn)
devs = cb(guest, optstr, dev)
for dev in util.listify(devs):
dev.validate()
guest.add_device(dev)
except Exception, e:
logging.debug("Exception parsing devtype=%s optstr=%s",
devtype, optstr, exc_info=True)
fail(_("Error in %(devtype)s device parameters: %(err)s") %
{"devtype": devtype, "err": str(e)})
def _make_handler(devtype, parsefunc):
return lambda *args, **kwargs: _handle_dev_opts(devtype, parsefunc,
*args, **kwargs)
def get_opt_param(opts, key):
if key not in opts:
return None
val = opts[key]
del(opts[key])
return val
_CLI_UNSET = "__virtinst_cli_unset__"
def _build_set_param(inst, opts, support_cb=None):
def _set_param(paramname, keyname, convert_cb=None, ignore_default=False):
val = get_opt_param(opts, keyname)
if val is None:
return
if support_cb:
support_cb(inst, paramname, keyname)
if convert_cb:
val = convert_cb(keyname, val)
if val == _CLI_UNSET:
return
if val == "default" and ignore_default:
return
if type(paramname) is not str:
paramname(val)
else:
if not hasattr(inst, paramname):
raise RuntimeError("programming error: obj=%s does not have "
"member=%s" % (inst, paramname))
setattr(inst, paramname, val)
return _set_param
def _check_leftover_opts(opts):
if not opts:
return
raise fail(_("Unknown options %s") % opts.keys())
def parse_optstr_tuples(optstr, compress_first=False):
"""
Parse optstr into a list of ordered tuples
"""
optstr = str(optstr or "")
optlist = []
if compress_first and optstr and not optstr.count("="):
return [(optstr, None)]
argsplitter = shlex.shlex(optstr, posix=True)
argsplitter.commenters = ""
argsplitter.whitespace = ","
argsplitter.whitespace_split = True
for opt in list(argsplitter):
if not opt:
continue
opt_type = None
opt_val = None
if opt.count("="):
opt_type, opt_val = opt.split("=", 1)
optlist.append((opt_type, opt_val))
else:
optlist.append((opt, None))
return optlist
def parse_optstr(optstr, basedict=None, remove_first=None,
compress_first=False):
"""
Helper function for parsing opt strings of the form
opt1=val1,opt2=val2,...
@param basedict: starting dictionary, so the caller can easily set
default values, etc.
@param remove_first: List or parameters to peel off the front of
option string, and store in the returned dict.
remove_first=["char_type"] for --serial pty,foo=bar
returns {"char_type", "pty", "foo" : "bar"}
@param compress_first: If there are no options of the form opt1=opt2,
compress the string to a single option
@returns: a dictionary of {'opt1': 'val1', 'opt2': 'val2'}
"""
optlist = parse_optstr_tuples(optstr, compress_first=compress_first)
optdict = basedict or {}
paramlist = remove_first
if type(paramlist) is not list:
paramlist = paramlist and [paramlist] or []
for idx in range(len(paramlist)):
if len(optlist) < len(paramlist):
break
if optlist[idx][1] is None:
optlist[idx] = (paramlist[idx], optlist[idx][0])
for opt, val in optlist:
if type(optdict.get(opt)) is list:
optdict[opt].append(val)
else:
optdict[opt] = val
return optdict
######################
# --numatune parsing #
######################
def parse_numatune(guest, optstr):
opts = parse_optstr(optstr, remove_first="nodeset", compress_first=True)
set_param = _build_set_param(guest.numatune, opts)
set_param("memory_nodeset", "nodeset")
set_param("memory_mode", "mode")
_check_leftover_opts(opts)
##################
# --vcpu parsing #
##################
def parse_vcpu(guest, optstr):
if not optstr:
return
opts = parse_optstr(optstr, remove_first="vcpus")
set_param = _build_set_param(guest, opts)
set_cpu_param = _build_set_param(guest.cpu, opts)
has_max = ("maxvcpus" in opts)
has_vcpus = ("vcpus" in opts) or has_max
set_param(has_max and "curvcpus" or "vcpus", "vcpus")
set_param("vcpus", "maxvcpus")
set_cpu_param("sockets", "sockets")
set_cpu_param("cores", "cores")
set_cpu_param("threads", "threads")
if not has_vcpus:
guest.vcpus = guest.cpu.vcpus_from_topology()
_check_leftover_opts(opts)
#################
# --cpu parsing #
#################
def parse_cpu(guest, optstr):
default_dict = {
"force": [],
"require": [],
"optional": [],
"disable": [],
"forbid": [],
}
opts = parse_optstr(optstr,
basedict=default_dict,
remove_first="model")
# Convert +feature, -feature into expected format
for key, value in opts.items():
policy = None
if value or len(key) == 1:
continue
if key.startswith("+"):
policy = "force"
elif key.startswith("-"):
policy = "disable"
if policy:
del(opts[key])
opts[policy].append(key[1:])
set_param = _build_set_param(guest.cpu, opts)
def set_features(policy):
for name in opts.get(policy):
guest.cpu.add_feature(name, policy)
del(opts[policy])
if opts.get("model") == "host":
guest.cpu.copy_host_cpu()
del(opts["model"])
set_param("model", "model")
set_param("match", "match")
set_param("vendor", "vendor")
set_features("force")
set_features("require")
set_features("optional")
set_features("disable")
set_features("forbid")
_check_leftover_opts(opts)
##################
# --boot parsing #
##################
def parse_boot(guest, optstr):
"""
Helper to parse --boot string
"""
opts = parse_optstr(optstr)
set_param = _build_set_param(guest.os, opts)
set_param("useserial", "useserial", convert_cb=_on_off_convert)
set_param("enable_bootmenu", "menu", convert_cb=_on_off_convert)
set_param("kernel", "kernel")
set_param("initrd", "initrd")
set_param("dtb", "dtb")
set_param("loader", "loader")
set_param("kernel_args", "extra_args")
set_param("kernel_args", "kernel_args")
# Build boot order
if opts:
optlist = [x[0] for x in parse_optstr_tuples(optstr)]
boot_order = []
for boot_dev in optlist:
if not boot_dev in guest.os.boot_devices:
continue
del(opts[boot_dev])
if boot_dev not in boot_order:
boot_order.append(boot_dev)
guest.os.bootorder = boot_order
_check_leftover_opts(opts)
######################
# --security parsing #
######################
def parse_security(guest, optstr):
if not optstr:
return
opts = parse_optstr(optstr)
arglist = optstr.split(",")
# Beware, adding boolean options here could upset label comma handling
mode = get_opt_param(opts, "type")
label = get_opt_param(opts, "label")
relabel = _yes_no_convert(get_opt_param(opts, "relabel"))
# Try to fix up label if it contained commas
if label:
tmparglist = arglist[:]
for idx in range(len(tmparglist)):
arg = tmparglist[idx]
if not arg.split("=")[0] == "label":
continue
for arg in tmparglist[idx + 1:]:
if arg.count("="):
break
if arg:
label += "," + arg
del(opts[arg])
break
if label:
guest.seclabel.label = label
if not mode:
mode = guest.seclabel.TYPE_STATIC
if mode:
guest.seclabel.type = mode
if relabel:
guest.seclabel.relabel = relabel
_check_leftover_opts(opts)
# Run for validation purposes
guest.seclabel.get_xml_config()
######################
# --features parsing #
######################
def parse_features(guest, optstr):
if not optstr:
return
opts = parse_optstr(optstr)
set_param = _build_set_param(guest.features, opts)
set_param("acpi", "acpi", convert_cb=_on_off_convert)
set_param("apic", "apic", convert_cb=_on_off_convert)
set_param("pae", "pae", convert_cb=_on_off_convert)
set_param("privnet", "privnet", convert_cb=_on_off_convert)
set_param("hap", "hap", convert_cb=_on_off_convert)
set_param("viridian", "viridian", convert_cb=_on_off_convert)
set_param("eoi", "eoi", convert_cb=_on_off_convert)
set_param("hyperv_vapic", "hyperv_vapic", convert_cb=_on_off_convert)
set_param("hyperv_relaxed", "hyperv_relaxed", convert_cb=_on_off_convert)
set_param("hyperv_spinlocks", "hyperv_spinlocks",
convert_cb=_on_off_convert)
set_param("hyperv_spinlocks_retries", "hyperv_spinlocks_retries")
_check_leftover_opts(opts)
###################
# --clock parsing #
###################
def parse_clock(guest, optstr):
opts = parse_optstr(optstr)
set_param = _build_set_param(guest.clock, opts)
set_param("offset", "offset")
timer_opt_names = ["tickpolicy", "present"]
timer_opts = {}
for key in opts.keys():
for name in timer_opt_names:
if not key.endswith("_" + name):
continue
timer_name = key[:-(len(name) + 1)]
if timer_name not in timer_opts:
timer_opts[timer_name] = {}
timer_opts[timer_name][key] = opts.pop(key)
_check_leftover_opts(opts)
for timer_name, subopts in timer_opts.items():
timer = guest.clock.add_timer()
timer.name = timer_name
set_param = _build_set_param(timer, subopts)
set_param("tickpolicy", "%s_tickpolicy" % timer_name)
set_param("present", "%s_present" % timer_name,
convert_cb=_on_off_convert)
_check_leftover_opts(subopts)
##########################
# Guest <device> parsing #
##########################
##################
# --disk parsing #
##################
def _parse_disk_source(guest, path, pool, vol, size, fmt, sparse):
abspath = None
volinst = None
volobj = None
# Strip media type
if sum([bool(p) for p in [path, pool, vol]]) > 1:
fail(_("Cannot specify more than 1 storage path"))
if path:
abspath = os.path.abspath(path)
if os.path.dirname(abspath) == "/var/lib/libvirt/images":
virtinst.StoragePool.build_default_pool(guest.conn)
elif pool:
if not size:
raise ValueError(_("Size must be specified with all 'pool='"))
if pool == "default":
virtinst.StoragePool.build_default_pool(guest.conn)
poolobj = guest.conn.storagePoolLookupByName(pool)
collidelist = []
for disk in guest.get_devices("disk"):
if (disk.get_vol_install() and
disk.get_vol_install().pool.name() == poolobj.name()):
collidelist.append(os.path.basename(disk.path))
vname = virtinst.StorageVolume.find_free_name(
poolobj, guest.name, suffix=".img", collidelist=collidelist)
volinst = virtinst.VirtualDisk.build_vol_install(
guest.conn, vname, poolobj, size, sparse)
if fmt:
if not volinst.supports_property("format"):
raise ValueError(_("Format attribute not supported for this "
"volume type"))
volinst.format = fmt
elif vol:
if not vol.count("/"):
raise ValueError(_("Storage volume must be specified as "
"vol=poolname/volname"))
vollist = vol.split("/")
voltuple = (vollist[0], vollist[1])
logging.debug("Parsed volume: as pool='%s' vol='%s'",
voltuple[0], voltuple[1])
if voltuple[0] == "default":
virtinst.StoragePool.build_default_pool(guest.conn)
volobj = virtinst.VirtualDisk.lookup_vol_object(guest.conn, voltuple)
return abspath, volinst, volobj
def parse_disk(guest, optstr, dev=None, validate=True):
"""
helper to properly parse --disk options
"""
def parse_perms(val):
ro = False
shared = False
if val is not None:
if val == "ro":
ro = True
elif val == "sh":
shared = True
elif val == "rw":
# It's default. Nothing to do.
pass
else:
fail(_("Unknown '%s' value '%s'" % ("perms", val)))
return ro, shared
def parse_size(val):
newsize = None
if val is not None:
try:
newsize = float(val)
except Exception, e:
fail(_("Improper value for 'size': %s" % str(e)))
return newsize
def parse_sparse(val):
sparse = True
if val is not None:
val = str(val).lower()
if val in ["true", "yes"]:
sparse = True
elif val in ["false", "no"]:
sparse = False
else:
fail(_("Unknown '%s' value '%s'") % ("sparse", val))
return sparse
def opt_get(key):
val = None
if key in opts:
val = opts.get(key)
del(opts[key])
return val
if not dev:
dev = virtinst.VirtualDisk(guest.conn)
# Parse out comma separated options
opts = parse_optstr(optstr, remove_first="path")
path = opt_get("path")
backing_store = opt_get("backing_store")
pool = opt_get("pool")
vol = opt_get("vol")
size = parse_size(opt_get("size"))
fmt = opt_get("format")
sparse = parse_sparse(opt_get("sparse"))
ro, shared = parse_perms(opt_get("perms"))
abspath, volinst, volobj = _parse_disk_source(guest, path, pool, vol,
size, fmt, sparse)
dev.path = volobj and volobj.path() or abspath
dev.read_only = ro
dev.shareable = shared
dev.set_create_storage(size=size, fmt=fmt, sparse=sparse,
vol_install=volinst, backing_store=backing_store)
set_param = _build_set_param(dev, opts)
set_param("device", "device")
set_param("bus", "bus")
set_param("removable", "removable", convert_cb=_on_off_convert)
set_param("driver_cache", "cache")
set_param("driver_name", "driver_name")
set_param("driver_type", "driver_type")
set_param("driver_io", "io")
set_param("error_policy", "error_policy")
set_param("serial", "serial")
set_param("target", "target")
set_param("sourceStartupPolicy", "startup_policy")
_check_leftover_opts(opts)
if validate:
dev.validate()
return dev, size
#####################
# --network parsing #
#####################
def parse_network(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="type")
set_param = _build_set_param(dev, opts)
if "type" not in opts:
if "network" in opts:
opts["type"] = virtinst.VirtualNetworkInterface.TYPE_VIRTUAL
opts["source"] = opts.pop("network")
elif "bridge" in opts:
opts["type"] = virtinst.VirtualNetworkInterface.TYPE_BRIDGE
opts["source"] = opts.pop("bridge")
def convert_mac(key, val):
ignore = key
if val == "RANDOM":
return None
return val
set_param("type", "type")
set_param("source", "source")
set_param("source_mode", "source_mode")
set_param("target_dev", "target")
set_param("model", "model")
set_param("macaddr", "mac", convert_cb=convert_mac)
set_param("filterref", "filterref")
_check_leftover_opts(opts)
return dev
get_networks = _make_handler(virtinst.VirtualNetworkInterface, parse_network)
######################
# --graphics parsing #
######################
def parse_graphics(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="type")
if opts.get("type") == "none":
return None
set_param = _build_set_param(dev, opts)
def convert_keymap(key, keymap):
ignore = key
from virtinst import hostkeymap
if not keymap:
return None
if keymap.lower() == "local":
return virtinst.VirtualGraphics.KEYMAP_LOCAL
if keymap.lower() == "none":
return None
use_keymap = hostkeymap.sanitize_keymap(keymap)
if not use_keymap:
raise ValueError(
_("Didn't match keymap '%s' in keytable!") % keymap)
return use_keymap
set_param("type", "type", ignore_default=True)
set_param("port", "port")
set_param("tlsPort", "tlsport")
set_param("listen", "listen")
set_param("keymap", "keymap", convert_cb=convert_keymap)
set_param("passwd", "password")
set_param("passwdValidTo", "passwordvalidto")
_check_leftover_opts(opts)
return dev
get_graphics = _make_handler(virtinst.VirtualGraphics, parse_graphics)
########################
# --controller parsing #
########################
def parse_controller(guest, optstr, dev):
if optstr == "usb2":
return virtinst.VirtualController.get_usb2_controllers(guest.conn)
elif optstr == "usb3":
dev.type = "usb"
dev.model = "nec-xhci"
return dev
opts = parse_optstr(optstr, remove_first="type")
set_param = _build_set_param(dev, opts)
set_param("type", "type")
set_param("model", "model")
set_param("index", "index")
set_param("master_startport", "master")
set_param(dev.address.set_addrstr, "address")
_check_leftover_opts(opts)
return dev
get_controllers = _make_handler(virtinst.VirtualController, parse_controller)
#######################
# --smartcard parsing #
#######################
def parse_smartcard(guest, optstr, dev=None):
ignore = guest
opts = parse_optstr(optstr, remove_first="mode")
if opts.get("mode") == "none":
return None
set_param = _build_set_param(dev, opts)
set_param("mode", "mode")
set_param("type", "type")
_check_leftover_opts(opts)
return dev
get_smartcards = _make_handler(virtinst.VirtualSmartCardDevice, parse_smartcard)
######################
# --redirdev parsing #
######################
def parse_redirdev(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="bus")
if opts.get("bus") == "none":
return None
set_param = _build_set_param(dev, opts)
set_param("bus", "bus")
set_param("type", "type")
set_param(dev.parse_friendly_server, "server")
_check_leftover_opts(opts)
return dev
get_redirdevs = _make_handler(virtinst.VirtualRedirDevice, parse_redirdev)
#################
# --tpm parsing #
#################
def parse_tpm(guest, optstr, dev=None):
ignore = guest
if optstr == "none":
return None
opts = parse_optstr(optstr, remove_first="type")
set_param = _build_set_param(dev, opts)
# Allow --tpm /dev/tpm
if opts.get("type", "").startswith("/"):
dev.device_path = opts.pop("type")
else:
set_param("type", "type")
set_param("model", "model")
set_param("device_path", "path")
_check_leftover_opts(opts)
return dev
get_tpms = _make_handler(virtinst.VirtualTPMDevice, parse_tpm)
#################
# --rng parsing #
#################
def parse_rng(guest, optstr, dev):
ignore = guest
if optstr == "none":
return None
opts = parse_optstr(optstr, remove_first="type")
set_param = _build_set_param(dev, opts)
# Allow --rng /dev/random
if opts.get("type", "").startswith("/"):
dev.device = opts.pop("type")
dev.type = "random"
else:
set_param("type", "type")
set_param("backend_type", "backend_type")
backend_mode = opts.get("backend_mode", "connect")
if backend_mode == "connect":
set_param("connect_host", "backend_host")
set_param("connect_service", "backend_service")
if backend_mode == "bind":
set_param("bind_host", "backend_host")
set_param("bind_service", "backend_service")
if opts.get("backend_type", "udp"):
set_param("connect_host", "backend_connect_host")
set_param("connect_service", "backend_connect_service")
set_param("device", "device")
set_param("model", "model")
set_param("rate_bytes", "rate_bytes")
set_param("rate_period", "rate_period")
return dev
get_rngs = _make_handler(virtinst.VirtualRNGDevice, parse_rng)
######################
# --watchdog parsing #
######################
def parse_watchdog(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="model")
set_param = _build_set_param(dev, opts)
set_param("model", "model")
set_param("action", "action")
_check_leftover_opts(opts)
return dev
get_watchdogs = _make_handler(virtinst.VirtualWatchdog, parse_watchdog)
########################
# --memballoon parsing #
########################
def parse_memballoon(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="model")
set_param = _build_set_param(dev, opts)
set_param("model", "model")
_check_leftover_opts(opts)
return dev
get_memballoons = _make_handler(virtinst.VirtualMemballoon, parse_memballoon)
######################################################
# --serial, --parallel, --channel, --console parsing #
######################################################
def _parse_char(guest, optstr, dev):
"""
Helper to parse --serial/--parallel options
"""
ignore = guest
dev_type = dev.virtual_device_type
opts = parse_optstr(optstr, remove_first="char_type")
ctype = opts.get("char_type")
if ctype == "none" and dev_type == "console":
guest.skip_default_console = True
return
if ctype == "none" and dev_type == "channel":
guest.skip_default_channel = True
return
def support_check(dev, paramname, dictname):
if type(paramname) is not str:
return
if not dev.supports_property(paramname):
raise ValueError(_("%(devtype)s type '%(chartype)s' does not "
"support '%(optname)s' option.") %
{"devtype" : dev_type, "chartype": ctype,
"optname" : dictname})
def parse_host(val):
host, ignore, port = (val or "").partition(":")
return host or None, port or None
def set_host(hostparam, portparam, val):
host, port = parse_host(val)
if host:
setattr(dev, hostparam, host)
if port:
setattr(dev, portparam, port)
set_param = _build_set_param(dev, opts, support_cb=support_check)
set_param("type", "char_type")
set_param("source_path", "path")
set_param("source_mode", "mode")
set_param("protocol", "protocol")
set_param("target_type", "target_type")
set_param("target_name", "name")
set_param(lambda v: set_host("source_host", "source_port", v), "host")
set_param(lambda v: set_host("bind_host", "bind_port", v), "bind_host")
set_param(lambda v: set_host("target_address", "target_port", v),
"target_address")
_check_leftover_opts(opts)
return dev
get_serials = _make_handler(virtinst.VirtualSerialDevice, _parse_char)
get_parallels = _make_handler(virtinst.VirtualParallelDevice, _parse_char)
get_channels = _make_handler(virtinst.VirtualChannelDevice, _parse_char)
get_consoles = _make_handler(virtinst.VirtualConsoleDevice, _parse_char)
########################
# --filesystem parsing #
########################
def parse_filesystem(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first=["source", "target"])
set_param = _build_set_param(dev, opts)
set_param("type", "type")
set_param("mode", "mode")
set_param("source", "source")
set_param("target", "target")
_check_leftover_opts(opts)
return dev
get_filesystems = _make_handler(virtinst.VirtualFilesystem, parse_filesystem)
###################
# --video parsing #
###################
def parse_video(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="model")
set_param = _build_set_param(dev, opts)
def convert_model(key, val):
ignore = key
if val == "default":
return _CLI_UNSET
return val
set_param("model", "model", convert_cb=convert_model)
_check_leftover_opts(opts)
return dev
get_videos = _make_handler(virtinst.VirtualVideoDevice, parse_video)
#####################
# --soundhw parsing #
#####################
def parse_sound(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="model")
set_param = _build_set_param(dev, opts)
def convert_model(key, val):
ignore = key
if val == "default":
return _CLI_UNSET
return val
set_param("model", "model", convert_cb=convert_model)
_check_leftover_opts(opts)
return dev
get_sounds = _make_handler(virtinst.VirtualAudio, parse_sound)
#####################
# --hostdev parsing #
#####################
def parse_hostdev(guest, optstr, dev):
ignore = guest
opts = parse_optstr(optstr, remove_first="name")
set_param = _build_set_param(dev, opts)
def convert_name(key, val):
ignore = key
return virtinst.NodeDevice.lookupNodeName(guest.conn, val)
set_param(dev.set_from_nodedev, "name", convert_cb=convert_name)
_check_leftover_opts(opts)
return dev
get_hostdevs = _make_handler(virtinst.VirtualHostDevice, parse_hostdev)