441 lines
14 KiB
Python
441 lines
14 KiB
Python
# Copyright (C) 2009, 2013 Red Hat, Inc.
|
|
# Copyright (C) 2009 Cole Robinson <crobinso@redhat.com>
|
|
#
|
|
# This work is licensed under the GNU GPLv2 or later.
|
|
# See the COPYING file in the top-level directory.
|
|
|
|
import logging
|
|
import traceback
|
|
|
|
from gi.repository import Gdk
|
|
from gi.repository import Gtk
|
|
from gi.repository import Pango
|
|
|
|
from virtinst import util
|
|
|
|
from . import uiutil
|
|
from .asyncjob import vmmAsyncJob
|
|
from .baseclass import vmmGObjectUI
|
|
from .connmanager import vmmConnectionManager
|
|
from .domain import vmmDomain
|
|
|
|
|
|
NUM_COLS = 3
|
|
(COL_LABEL,
|
|
COL_URI,
|
|
COL_CAN_MIGRATE) = range(NUM_COLS)
|
|
|
|
|
|
class vmmMigrateDialog(vmmGObjectUI):
|
|
@classmethod
|
|
def show_instance(cls, parentobj, vm):
|
|
try:
|
|
if not cls._instance:
|
|
cls._instance = vmmMigrateDialog()
|
|
cls._instance.show(parentobj.topwin, vm)
|
|
except Exception as e:
|
|
parentobj.err.show_err(
|
|
_("Error launching migrate dialog: %s") % str(e))
|
|
|
|
def __init__(self):
|
|
vmmGObjectUI.__init__(self, "migrate.ui", "vmm-migrate")
|
|
self.vm = None
|
|
|
|
self.builder.connect_signals({
|
|
"on_vmm_migrate_delete_event": self._delete_event,
|
|
"on_migrate_cancel_clicked": self._cancel_clicked,
|
|
"on_migrate_finish_clicked": self._finish_clicked,
|
|
|
|
"on_migrate_dest_changed": self._destconn_changed,
|
|
"on_migrate_set_address_toggled": self._set_address_toggled,
|
|
"on_migrate_set_port_toggled": self._set_port_toggled,
|
|
"on_migrate_mode_changed": self._mode_changed,
|
|
})
|
|
self.bind_escape_key_close()
|
|
self._cleanup_on_app_close()
|
|
|
|
self._init_state()
|
|
|
|
|
|
def _cleanup(self):
|
|
self.vm = None
|
|
|
|
@property
|
|
def _connobjs(self):
|
|
return vmmConnectionManager.get_instance().conns
|
|
|
|
@property
|
|
def conn(self):
|
|
return self.vm and self.vm.conn or None
|
|
|
|
|
|
##############
|
|
# Public API #
|
|
##############
|
|
|
|
def show(self, parent, vm):
|
|
logging.debug("Showing migrate wizard")
|
|
self._set_vm(vm)
|
|
self._reset_state()
|
|
self.topwin.set_transient_for(parent)
|
|
self.topwin.present()
|
|
|
|
def close(self, ignore1=None, ignore2=None):
|
|
logging.debug("Closing migrate wizard")
|
|
self.topwin.hide()
|
|
self._set_vm(None)
|
|
return 1
|
|
|
|
def _vm_removed(self, _conn, connkey):
|
|
if self.vm.get_connkey() == connkey:
|
|
self.close()
|
|
|
|
def _set_vm(self, newvm):
|
|
oldvm = self.vm
|
|
if oldvm:
|
|
oldvm.conn.disconnect_by_obj(self)
|
|
if newvm:
|
|
newvm.conn.connect("vm-removed", self._vm_removed)
|
|
self.vm = newvm
|
|
|
|
|
|
################
|
|
# Init helpers #
|
|
################
|
|
|
|
def _init_state(self):
|
|
blue = Gdk.color_parse("#0072A8")
|
|
self.widget("header").modify_bg(Gtk.StateType.NORMAL, blue)
|
|
|
|
# Connection combo
|
|
cols = [None] * NUM_COLS
|
|
cols[COL_LABEL] = str
|
|
cols[COL_URI] = str
|
|
cols[COL_CAN_MIGRATE] = bool
|
|
model = Gtk.ListStore(*cols)
|
|
combo = self.widget("migrate-dest")
|
|
combo.set_model(model)
|
|
text = uiutil.init_combo_text_column(combo, COL_LABEL)
|
|
text.set_property("ellipsize", Pango.EllipsizeMode.MIDDLE)
|
|
text.set_property("width-chars", 30)
|
|
combo.add_attribute(text, 'sensitive', COL_CAN_MIGRATE)
|
|
model.set_sort_column_id(COL_LABEL, Gtk.SortType.ASCENDING)
|
|
|
|
def _sorter(model, iter1, iter2, ignore):
|
|
def _cmp(a, b):
|
|
return ((a > b) - (a < b))
|
|
|
|
row1 = model[iter1]
|
|
row2 = model[iter2]
|
|
if row1[COL_URI] is None:
|
|
return -1
|
|
if row2[COL_URI] is None:
|
|
return 1
|
|
return _cmp(row1[COL_LABEL], row2[COL_LABEL])
|
|
model.set_sort_func(COL_LABEL, _sorter)
|
|
|
|
# Mode combo
|
|
combo = self.widget("migrate-mode")
|
|
# label, is_tunnel
|
|
model = Gtk.ListStore(str, bool)
|
|
model.append([_("Direct"), False])
|
|
model.append([_("Tunnelled"), True])
|
|
combo.set_model(model)
|
|
uiutil.init_combo_text_column(combo, 0)
|
|
|
|
self.widget("migrate-dest").emit("changed")
|
|
|
|
self.widget("migrate-mode").set_tooltip_text(
|
|
self.widget("migrate-mode-label").get_tooltip_text())
|
|
self.widget("migrate-unsafe").set_tooltip_text(
|
|
self.widget("migrate-unsafe-label").get_tooltip_text())
|
|
self.widget("migrate-temporary").set_tooltip_text(
|
|
self.widget("migrate-temporary-label").get_tooltip_text())
|
|
|
|
def _reset_state(self):
|
|
title_str = ("<span size='large' color='white'>%s '%s'</span>" %
|
|
(_("Migrate"), util.xml_escape(self.vm.get_name())))
|
|
self.widget("header-label").set_markup(title_str)
|
|
|
|
self.widget("migrate-advanced-expander").set_expanded(False)
|
|
|
|
self.widget("migrate-cancel").grab_focus()
|
|
|
|
self.widget("config-box").set_visible(True)
|
|
|
|
hostname = self.conn.libvirt_gethostname()
|
|
srctext = "%s (%s)" % (hostname, self.conn.get_pretty_desc())
|
|
self.widget("migrate-label-name").set_text(self.vm.get_name_or_title())
|
|
self.widget("migrate-label-src").set_text(srctext)
|
|
self.widget("migrate-label-src").set_tooltip_text(self.conn.get_uri())
|
|
|
|
self.widget("migrate-set-address").set_active(True)
|
|
self.widget("migrate-set-address").emit("toggled")
|
|
self.widget("migrate-set-port").set_active(True)
|
|
|
|
self.widget("migrate-mode").set_active(0)
|
|
self.widget("migrate-unsafe").set_active(False)
|
|
self.widget("migrate-temporary").set_active(False)
|
|
|
|
if self.conn.is_xen():
|
|
# Default xen port is 8002
|
|
self.widget("migrate-port").set_value(8002)
|
|
else:
|
|
# QEMU migrate port range is 49152+64
|
|
self.widget("migrate-port").set_value(49152)
|
|
|
|
self._populate_destconn()
|
|
|
|
|
|
#############
|
|
# Listeners #
|
|
#############
|
|
|
|
def _delete_event(self, ignore1, ignore2):
|
|
self.close()
|
|
return 1
|
|
|
|
def _cancel_clicked(self, src):
|
|
ignore = src
|
|
self.close()
|
|
|
|
def _finish_clicked(self, src):
|
|
ignore = src
|
|
self._finish()
|
|
|
|
def _destconn_changed(self, src):
|
|
row = uiutil.get_list_selected_row(src)
|
|
if not row:
|
|
return
|
|
|
|
can_migrate = row and row[COL_CAN_MIGRATE] or False
|
|
uri = row[COL_URI]
|
|
|
|
tooltip = ""
|
|
if not can_migrate:
|
|
tooltip = _("A valid destination connection must be selected.")
|
|
|
|
self.widget("config-box").set_visible(can_migrate)
|
|
self.widget("migrate-finish").set_sensitive(can_migrate)
|
|
self.widget("migrate-finish").set_tooltip_text(tooltip)
|
|
|
|
address = ""
|
|
address_warning = ""
|
|
tunnel_warning = ""
|
|
tunnel_uri = ""
|
|
|
|
if can_migrate and uri in self._connobjs:
|
|
destconn = self._connobjs[uri]
|
|
|
|
tunnel_uri = destconn.get_uri()
|
|
if not destconn.is_remote():
|
|
tunnel_warning = _("A remotely accessible libvirt URI "
|
|
"is required for tunneled migration, but the "
|
|
"selected connection is a local URI. Libvirt will "
|
|
"reject this unless you add a transport.")
|
|
tunnel_warning = ("<span size='small'>%s</span>" %
|
|
tunnel_warning)
|
|
|
|
address = destconn.libvirt_gethostname()
|
|
|
|
if self._is_localhost(address):
|
|
address_warning = _("The destination's hostname is "
|
|
"'localhost', which will be rejected by libvirt. "
|
|
"You must configure the destination to have a valid "
|
|
"publicly accessible hostname.")
|
|
address_warning = ("<span size='small'>%s</span>" %
|
|
address_warning)
|
|
|
|
self.widget("migrate-address").set_text(address)
|
|
uiutil.set_grid_row_visible(
|
|
self.widget("migrate-address-warning-box"), bool(address_warning))
|
|
self.widget("migrate-address-warning-label").set_markup(address_warning)
|
|
|
|
self.widget("migrate-tunnel-uri").set_text(tunnel_uri)
|
|
uiutil.set_grid_row_visible(
|
|
self.widget("migrate-tunnel-warning-box"), bool(tunnel_warning))
|
|
self.widget("migrate-tunnel-warning-label").set_markup(tunnel_warning)
|
|
|
|
|
|
def _set_address_toggled(self, src):
|
|
enable = src.get_active()
|
|
self.widget("migrate-address").set_visible(enable)
|
|
self.widget("migrate-address-label").set_visible(not enable)
|
|
|
|
port_enable = self.widget("migrate-set-port").get_active()
|
|
self.widget("migrate-set-port").set_active(enable and port_enable)
|
|
self.widget("migrate-set-port").emit("toggled")
|
|
|
|
def _set_port_toggled(self, src):
|
|
enable = src.get_active()
|
|
self.widget("migrate-port").set_visible(enable)
|
|
self.widget("migrate-port-label").set_visible(not enable)
|
|
|
|
def _is_tunnel_selected(self):
|
|
return uiutil.get_list_selection(self.widget("migrate-mode"), column=1)
|
|
|
|
def _mode_changed(self, src):
|
|
ignore = src
|
|
is_tunnel = self._is_tunnel_selected()
|
|
self.widget("migrate-direct-box").set_visible(not is_tunnel)
|
|
self.widget("migrate-tunnel-box").set_visible(is_tunnel)
|
|
|
|
|
|
###########################
|
|
# destconn combo handling #
|
|
###########################
|
|
|
|
def _is_localhost(self, addr):
|
|
return not addr or addr.startswith("localhost")
|
|
|
|
def _build_dest_row(self, destconn):
|
|
driver = self.conn.get_driver()
|
|
origuri = self.conn.get_uri()
|
|
|
|
can_migrate = False
|
|
desc = destconn.get_pretty_desc()
|
|
reason = ""
|
|
desturi = destconn.get_uri()
|
|
|
|
if destconn.get_driver() != driver:
|
|
reason = _("Hypervisors do not match")
|
|
elif destconn.is_disconnected():
|
|
reason = _("Disconnected")
|
|
elif destconn.get_uri() == origuri:
|
|
reason = _("Same connection")
|
|
elif destconn.is_active():
|
|
can_migrate = True
|
|
|
|
if reason:
|
|
desc = "%s (%s)" % (desc, reason)
|
|
return [desc, desturi, can_migrate]
|
|
|
|
def _populate_destconn(self):
|
|
combo = self.widget("migrate-dest")
|
|
model = combo.get_model()
|
|
model.clear()
|
|
|
|
rows = []
|
|
for conn in list(self._connobjs.values()):
|
|
rows.append(self._build_dest_row(conn))
|
|
|
|
if not any([row[COL_CAN_MIGRATE] for row in rows]):
|
|
rows.insert(0,
|
|
[_("No usable connections available."), None, False])
|
|
|
|
for row in rows:
|
|
model.append(row)
|
|
|
|
combo.set_active(0)
|
|
for idx, row in enumerate(model):
|
|
if row[COL_CAN_MIGRATE]:
|
|
combo.set_active(idx)
|
|
break
|
|
|
|
|
|
####################
|
|
# migrate handling #
|
|
####################
|
|
|
|
def _build_regular_migrate_uri(self):
|
|
address = None
|
|
if self.widget("migrate-address").get_visible():
|
|
address = self.widget("migrate-address").get_text()
|
|
|
|
port = None
|
|
if self.widget("migrate-port").get_visible():
|
|
port = int(self.widget("migrate-port").get_value())
|
|
|
|
if not address:
|
|
return
|
|
|
|
if self.conn.is_xen():
|
|
uri = "%s" % address
|
|
else:
|
|
uri = "tcp:%s" % address
|
|
if port:
|
|
uri += ":%s" % port
|
|
return uri
|
|
|
|
def _finish_cb(self, error, details, destconn):
|
|
self.reset_finish_cursor()
|
|
|
|
if error:
|
|
error = _("Unable to migrate guest: %s") % error
|
|
self.err.show_err(error, details=details)
|
|
else:
|
|
destconn.schedule_priority_tick(pollvm=True)
|
|
self.conn.schedule_priority_tick(pollvm=True)
|
|
self.close()
|
|
|
|
def _finish(self):
|
|
try:
|
|
row = uiutil.get_list_selected_row(self.widget("migrate-dest"))
|
|
destlabel = row[COL_LABEL]
|
|
destconn = self._connobjs.get(row[COL_URI])
|
|
|
|
tunnel = self._is_tunnel_selected()
|
|
unsafe = self.widget("migrate-unsafe").get_active()
|
|
temporary = self.widget("migrate-temporary").get_active()
|
|
|
|
if tunnel:
|
|
uri = self.widget("migrate-tunnel-uri").get_text()
|
|
else:
|
|
uri = self._build_regular_migrate_uri()
|
|
except Exception as e:
|
|
details = "".join(traceback.format_exc())
|
|
self.err.show_err((_("Uncaught error validating input: %s") %
|
|
str(e)),
|
|
details=details)
|
|
return
|
|
|
|
self.set_finish_cursor()
|
|
|
|
cancel_cb = None
|
|
if self.vm.getjobinfo_supported:
|
|
cancel_cb = (self._cancel_migration, self.vm)
|
|
|
|
if uri:
|
|
destlabel += " " + uri
|
|
|
|
progWin = vmmAsyncJob(
|
|
self._async_migrate,
|
|
[self.vm, destconn, uri, tunnel, unsafe, temporary],
|
|
self._finish_cb, [destconn],
|
|
_("Migrating VM '%s'") % self.vm.get_name(),
|
|
(_("Migrating VM '%s' to %s. This may take a while.") %
|
|
(self.vm.get_name(), destlabel)),
|
|
self.topwin, cancel_cb=cancel_cb)
|
|
progWin.run()
|
|
|
|
def _cancel_migration(self, asyncjob, vm):
|
|
logging.debug("Cancelling migrate job")
|
|
if not vm:
|
|
return
|
|
|
|
try:
|
|
vm.abort_job()
|
|
except Exception as e:
|
|
logging.exception("Error cancelling migrate job")
|
|
asyncjob.show_warning(_("Error cancelling migrate job: %s") % e)
|
|
return
|
|
|
|
asyncjob.job_canceled = True
|
|
return
|
|
|
|
def _async_migrate(self, asyncjob,
|
|
origvm, origdconn, migrate_uri, tunnel, unsafe, temporary):
|
|
meter = asyncjob.get_meter()
|
|
|
|
srcconn = origvm.conn
|
|
dstconn = origdconn
|
|
|
|
vminst = srcconn.get_backend().lookupByName(origvm.get_name())
|
|
vm = vmmDomain(srcconn, vminst, vminst.UUID())
|
|
|
|
logging.debug("Migrating vm=%s from %s to %s", vm.get_name(),
|
|
srcconn.get_uri(), dstconn.get_uri())
|
|
|
|
vm.migrate(dstconn, migrate_uri, tunnel, unsafe, temporary,
|
|
meter=meter)
|