virt-manager/virtManager/hoststorage.py

686 lines
24 KiB
Python

# Copyright (C) 2015 Red Hat, Inc.
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
from gi.repository import Gdk
from gi.repository import Gtk
from gi.repository import Pango
from virtinst import DeviceDisk
from virtinst import log
from virtinst import StoragePool
from .lib import uiutil
from .asyncjob import vmmAsyncJob
from .baseclass import vmmGObjectUI
from .createpool import vmmCreatePool
from .createvol import vmmCreateVolume
from .xmleditor import vmmXMLEditor
EDIT_POOL_IDS = (
EDIT_POOL_NAME,
EDIT_POOL_AUTOSTART,
EDIT_POOL_XML,
) = list(range(3))
VOL_NUM_COLUMNS = 7
(VOL_COLUMN_KEY,
VOL_COLUMN_NAME,
VOL_COLUMN_CAPACITY,
VOL_COLUMN_SIZESTR,
VOL_COLUMN_FORMAT,
VOL_COLUMN_INUSEBY,
VOL_COLUMN_SENSITIVE) = range(VOL_NUM_COLUMNS)
POOL_NUM_COLUMNS = 4
(POOL_COLUMN_CONNKEY,
POOL_COLUMN_LABEL,
POOL_COLUMN_ISACTIVE,
POOL_COLUMN_PERCENT) = range(POOL_NUM_COLUMNS)
ICON_RUNNING = "state_running"
ICON_SHUTOFF = "state_shutoff"
def _get_pool_size_percent(pool):
cap = pool.get_capacity()
alloc = pool.get_allocation()
if not cap or alloc is None:
per = 0
else:
per = int(((float(alloc) / float(cap)) * 100))
return "<span size='small' color='#484848'>%s%%</span>" % int(per)
class vmmHostStorage(vmmGObjectUI):
__gsignals__ = {
"browse-clicked": (vmmGObjectUI.RUN_FIRST, None, []),
"volume-chosen": (vmmGObjectUI.RUN_FIRST, None, [object]),
"cancel-clicked": (vmmGObjectUI.RUN_FIRST, None, []),
}
def __init__(self, conn, builder, topwin, vol_sensitive_cb=None):
vmmGObjectUI.__init__(self, "hoststorage.ui",
None, builder=builder, topwin=topwin)
self.conn = conn
# Callback function for setting volume row sensitivity. Used
# by storage browser to disallow selecting certain volumes
self._vol_sensitive_cb = vol_sensitive_cb
# Name hint passed to addvol. Set by storagebrowser
self._name_hint = None
self._active_edits = set()
self._addpool = None
self._addvol = None
self._volmenu = None
self._xmleditor = None
self.top_box = self.widget("storage-grid")
self.builder.connect_signals({
"on_pool_add_clicked": self._pool_add_cb,
"on_pool_stop_clicked": self._pool_stop_cb,
"on_pool_start_clicked": self._pool_start_cb,
"on_pool_delete_clicked": self._pool_delete_cb,
"on_pool_refresh_clicked": self._pool_refresh_cb,
"on_pool_apply_clicked": (lambda *x: self._pool_apply()),
"on_vol_delete_clicked": self._vol_delete_cb,
"on_vol_list_button_press_event": self._vol_popup_menu_cb,
"on_vol_list_changed": self._vol_selected_cb,
"on_vol_add_clicked": self._vol_add_cb,
"on_browse_cancel_clicked": self._cancel_clicked_cb,
"on_browse_local_clicked": self._browse_local_clicked_cb,
"on_choose_volume_clicked": self._choose_volume_clicked_cb,
"on_vol_list_row_activated": self._vol_list_row_activated_cb,
"on_pool_name_changed": (lambda *x:
self._enable_pool_apply(EDIT_POOL_NAME)),
"on_pool_autostart_toggled": self._pool_autostart_changed_cb,
})
self._init_ui()
self._populate_pools()
self.conn.connect("pool-added", self._conn_pools_changed_cb)
self.conn.connect("pool-removed", self._conn_pools_changed_cb)
self.conn.connect("state-changed", self._conn_state_changed_cb)
#######################
# Standard UI methods #
#######################
def _cleanup(self):
try:
self.conn.disconnect_by_obj(self)
except Exception:
pass
self.conn = None
if self._addpool:
self._addpool.cleanup()
self._addpool = None
if self._addvol:
self._addvol.cleanup()
self._addvol = None
self._volmenu.destroy()
self._volmenu = None
self._xmleditor.cleanup()
self._xmleditor = None
def close(self, ignore1=None, ignore2=None):
if self._addvol:
self._addvol.close()
if self._addpool:
self._addpool.close()
if self._volmenu:
self._volmenu.hide()
###########
# UI init #
###########
def _cap_sort_func_cb(self, model, iter1, iter2):
def _cmp(a, b):
return ((a > b) - (a < b))
return _cmp(int(model[iter1][VOL_COLUMN_CAPACITY]),
int(model[iter2][VOL_COLUMN_CAPACITY]))
def _init_ui(self):
self.widget("storage-pages").set_show_tabs(False)
# These are enabled in storagebrowser.py
self.widget("browse-local").set_visible(False)
self.widget("browse-cancel").set_visible(False)
self.widget("choose-volume").set_visible(False)
# Volume list popup menu
self._volmenu = Gtk.Menu()
volCopyPath = Gtk.ImageMenuItem.new_with_label(_("Copy Volume Path"))
volCopyImage = Gtk.Image()
volCopyImage.set_from_stock(Gtk.STOCK_COPY, Gtk.IconSize.MENU)
volCopyPath.set_image(volCopyImage)
volCopyPath.show()
volCopyPath.connect("activate", self._vol_copy_path_cb)
self._volmenu.add(volCopyPath)
# Volume list
# [key, name, sizestr, capacity, format, in use by string, sensitive]
volListModel = Gtk.ListStore(str, str, str, str, str, str, bool)
self.widget("vol-list").set_model(volListModel)
volCol = Gtk.TreeViewColumn(_("Volumes"))
vol_txt1 = Gtk.CellRendererText()
volCol.pack_start(vol_txt1, True)
volCol.add_attribute(vol_txt1, 'text', VOL_COLUMN_NAME)
volCol.add_attribute(vol_txt1, 'sensitive', VOL_COLUMN_SENSITIVE)
volCol.set_sort_column_id(VOL_COLUMN_NAME)
self.widget("vol-list").append_column(volCol)
volSizeCol = Gtk.TreeViewColumn(_("Size"))
vol_txt2 = Gtk.CellRendererText()
volSizeCol.pack_start(vol_txt2, False)
volSizeCol.add_attribute(vol_txt2, 'text', VOL_COLUMN_SIZESTR)
volSizeCol.add_attribute(vol_txt2, 'sensitive', VOL_COLUMN_SENSITIVE)
volSizeCol.set_sort_column_id(VOL_COLUMN_CAPACITY)
self.widget("vol-list").append_column(volSizeCol)
volListModel.set_sort_func(VOL_COLUMN_CAPACITY, self._cap_sort_func_cb)
volFormatCol = Gtk.TreeViewColumn(_("Format"))
vol_txt3 = Gtk.CellRendererText()
volFormatCol.pack_start(vol_txt3, False)
volFormatCol.add_attribute(vol_txt3, 'text', VOL_COLUMN_FORMAT)
volFormatCol.add_attribute(vol_txt3, 'sensitive', VOL_COLUMN_SENSITIVE)
volFormatCol.set_sort_column_id(VOL_COLUMN_FORMAT)
self.widget("vol-list").append_column(volFormatCol)
volUseCol = Gtk.TreeViewColumn(_("Used By"))
vol_txt4 = Gtk.CellRendererText()
volUseCol.pack_start(vol_txt4, False)
volUseCol.add_attribute(vol_txt4, 'text', VOL_COLUMN_INUSEBY)
volUseCol.add_attribute(vol_txt4, 'sensitive', VOL_COLUMN_SENSITIVE)
volUseCol.set_sort_column_id(VOL_COLUMN_INUSEBY)
self.widget("vol-list").append_column(volUseCol)
volListModel.set_sort_column_id(VOL_COLUMN_NAME,
Gtk.SortType.ASCENDING)
# Init pool list
# [connkey, label, pool.is_active(), percent string]
pool_list = self.widget("pool-list")
poolListModel = Gtk.ListStore(str, str, bool, str)
pool_list.set_model(poolListModel)
poolCol = Gtk.TreeViewColumn(_("Storage Pools"))
pool_txt = Gtk.CellRendererText()
pool_txt.set_property("ellipsize", Pango.EllipsizeMode.END)
pool_per = Gtk.CellRendererText()
poolCol.pack_start(pool_per, False)
poolCol.pack_start(pool_txt, True)
poolCol.add_attribute(pool_txt, 'markup', POOL_COLUMN_LABEL)
poolCol.add_attribute(pool_txt, 'sensitive', POOL_COLUMN_ISACTIVE)
poolCol.add_attribute(pool_per, 'markup', POOL_COLUMN_PERCENT)
pool_list.append_column(poolCol)
poolListModel.set_sort_column_id(POOL_COLUMN_LABEL,
Gtk.SortType.ASCENDING)
pool_list.get_selection().connect("changed", self._pool_selected_cb)
pool_list.get_selection().set_select_function(
(lambda *x: self._confirm_changes()), None)
self._xmleditor = vmmXMLEditor(self.builder, self.topwin,
self.widget("pool-details-align"),
self.widget("pool-details"))
self._xmleditor.connect("changed",
lambda s: self._enable_pool_apply(EDIT_POOL_XML))
self._xmleditor.connect("xml-requested",
self._xmleditor_xml_requested_cb)
self._xmleditor.connect("xml-reset",
self._xmleditor_xml_reset_cb)
###############
# Public APIs #
###############
def refresh_page(self):
self._populate_vols()
self.conn.schedule_priority_tick(pollpool=True)
def set_name_hint(self, val):
self._name_hint = val
#################
# UI populating #
#################
def _refresh_conn_state(self):
conn_active = self.conn.is_active()
self.widget("pool-add").set_sensitive(conn_active and
self.conn.is_storage_capable())
if conn_active and not self.conn.is_storage_capable():
self._set_error_page(
_("Libvirt connection does not support storage management."))
if conn_active:
uiutil.set_list_selection_by_number(self.widget("pool-list"), 0)
return
self._set_error_page(_("Connection not active."))
self._populate_pools()
def _current_pool(self):
connkey = uiutil.get_list_selection(self.widget("pool-list"))
return connkey and self.conn.get_pool(connkey)
def _current_vol(self):
pool = self._current_pool()
if not pool:
return None
connkey = uiutil.get_list_selection(self.widget("vol-list"))
return connkey and pool.get_volume(connkey)
def _update_pool_row(self, connkey):
for row in self.widget("pool-list").get_model():
if row[POOL_COLUMN_CONNKEY] != connkey:
continue
# Update active sensitivity and percent available for passed key
pool = self.conn.get_pool(connkey)
row[POOL_COLUMN_ISACTIVE] = pool.is_active()
row[POOL_COLUMN_PERCENT] = _get_pool_size_percent(pool)
break
curpool = self._current_pool()
if not curpool or curpool.get_connkey() != connkey:
return
self._refresh_current_pool()
def _populate_pool_state(self, pool):
auto = pool.get_autostart()
active = pool.is_active()
# Set pool details state
self.widget("pool-details").set_sensitive(True)
self.widget("pool-name-entry").set_text(pool.get_name())
self.widget("pool-name-entry").set_editable(not active)
self.widget("pool-sizes").set_markup(
_("%s Free / <i>%s In Use</i>") %
(pool.get_pretty_available(), pool.get_pretty_allocation()))
self.widget("pool-location").set_text(
pool.get_target_path())
self.widget("pool-state-icon").set_from_icon_name(
((active and ICON_RUNNING) or ICON_SHUTOFF),
Gtk.IconSize.BUTTON)
self.widget("pool-state").set_text(
(active and _("Active")) or _("Inactive"))
self.widget("pool-autostart").set_label(_("On Boot"))
self.widget("pool-autostart").set_active(auto)
self.widget("vol-list").set_sensitive(active)
self._populate_vols()
self.widget("pool-delete").set_sensitive(not active)
self.widget("pool-stop").set_sensitive(active)
self.widget("pool-start").set_sensitive(not active)
self.widget("pool-refresh").set_sensitive(active)
self.widget("vol-add").set_sensitive(active)
self.widget("vol-add").set_tooltip_text(_("Create new volume"))
self.widget("vol-delete").set_sensitive(False)
if active and not pool.supports_volume_creation():
self.widget("vol-add").set_sensitive(False)
self.widget("vol-add").set_tooltip_text(
_("Pool does not support volume creation"))
self._xmleditor.set_xml_from_libvirtobject(pool)
def _set_error_page(self, msg):
self.widget("storage-pages").set_current_page(1)
self.widget("storage-error-label").set_text(msg)
def _refresh_current_pool(self):
pool = self._current_pool()
if not pool:
self._set_error_page(_("No storage pool selected."))
return
self.widget("storage-pages").set_current_page(0)
try:
self._populate_pool_state(pool)
except Exception as e:
log.exception(e)
self._set_error_page(_("Error selecting pool: %s") % e)
self._disable_pool_apply()
def _populate_pools(self):
pool_list = self.widget("pool-list")
curpool = self._current_pool()
model = pool_list.get_model()
# Prevent events while the model is modified
pool_list.set_model(None)
try:
pool_list.get_selection().unselect_all()
model.clear()
for pool in self.conn.list_pools():
pool.disconnect_by_obj(self)
pool.connect("state-changed", self._pool_changed_cb)
pool.connect("refreshed", self._pool_changed_cb)
name = pool.get_name()
typ = StoragePool.get_pool_type_desc(pool.get_type())
label = "%s\n<span size='small'>%s</span>" % (name, typ)
row = [None] * POOL_NUM_COLUMNS
row[POOL_COLUMN_CONNKEY] = pool.get_connkey()
row[POOL_COLUMN_LABEL] = label
row[POOL_COLUMN_ISACTIVE] = pool.is_active()
row[POOL_COLUMN_PERCENT] = _get_pool_size_percent(pool)
model.append(row)
finally:
pool_list.set_model(model)
uiutil.set_list_selection(pool_list,
curpool and curpool.get_connkey() or None)
def _populate_vols(self):
list_widget = self.widget("vol-list")
pool = self._current_pool()
vols = pool and pool.get_volumes() or []
model = list_widget.get_model()
list_widget.get_selection().unselect_all()
model.clear()
vadj = self.widget("vol-scroll").get_vadjustment()
vscroll_percent = vadj.get_value() // max(vadj.get_upper(), 1)
for vol in vols:
key = vol.get_connkey()
try:
path = vol.get_target_path()
name = vol.get_pretty_name(pool.get_type())
cap = str(vol.get_capacity())
sizestr = vol.get_pretty_capacity()
fmt = vol.get_format() or ""
except Exception:
log.debug("Error getting volume info for '%s', "
"hiding it", key, exc_info=True)
continue
namestr = None
try:
if path:
names = DeviceDisk.path_in_use_by(vol.conn.get_backend(),
path)
namestr = ", ".join(names)
if not namestr:
namestr = None
except Exception:
log.exception("Failed to determine if storage volume in "
"use.")
sensitive = True
if self._vol_sensitive_cb:
sensitive = self._vol_sensitive_cb(fmt)
row = [None] * VOL_NUM_COLUMNS
row[VOL_COLUMN_KEY] = key
row[VOL_COLUMN_NAME] = name
row[VOL_COLUMN_SIZESTR] = sizestr
row[VOL_COLUMN_CAPACITY] = cap
row[VOL_COLUMN_FORMAT] = fmt
row[VOL_COLUMN_INUSEBY] = namestr
row[VOL_COLUMN_SENSITIVE] = sensitive
model.append(row)
def _reset_vscroll_position():
vadj.set_value(vadj.get_upper() * vscroll_percent)
self.idle_add(_reset_vscroll_position)
##########################
# Pool lifecycle actions #
##########################
def _pool_stop_cb(self, src):
pool = self._current_pool()
if pool is None:
return
log.debug("Stopping pool '%s'", pool.get_name())
vmmAsyncJob.simple_async_noshow(pool.stop, [], self,
_("Error stopping pool '%s'") % pool.get_name())
def _pool_start_cb(self, src):
pool = self._current_pool()
if pool is None:
return
log.debug("Starting pool '%s'", pool.get_name())
vmmAsyncJob.simple_async_noshow(pool.start, [], self,
_("Error starting pool '%s'") % pool.get_name())
def _pool_add_cb(self, src):
log.debug("Launching 'Add Pool' wizard")
try:
if self._addpool is None:
self._addpool = vmmCreatePool(self.conn)
self._addpool.connect("pool-created", self._pool_created_cb)
self._addpool.show(self.topwin)
except Exception as e:
self.err.show_err(_("Error launching pool wizard: %s") % str(e))
def _pool_delete_cb(self, src):
pool = self._current_pool()
if pool is None:
return
result = self.err.yes_no(_("Are you sure you want to permanently "
"delete the pool %s?") % pool.get_name())
if not result:
return
log.debug("Deleting pool '%s'", pool.get_name())
vmmAsyncJob.simple_async_noshow(pool.delete, [], self,
_("Error deleting pool '%s'") % pool.get_name())
def _pool_refresh_cb(self, src):
pool = self._current_pool()
if pool is None:
return
self._confirm_changes()
log.debug("Refresh pool '%s'", pool.get_name())
vmmAsyncJob.simple_async_noshow(pool.refresh, [], self,
_("Error refreshing pool '%s'") % pool.get_name())
###########################
# Volume action listeners #
###########################
def _vol_copy_path_cb(self, src):
vol = self._current_vol()
if not vol:
return
clipboard = Gtk.Clipboard.get(Gdk.SELECTION_CLIPBOARD)
target_path = vol.get_target_path()
if target_path:
clipboard.set_text(target_path, -1)
def _vol_add_cb(self, src):
pool = self._current_pool()
if pool is None:
return
log.debug("Launching 'Add Volume' wizard for pool '%s'",
pool.get_name())
try:
if self._addvol is None:
self._addvol = vmmCreateVolume(self.conn, pool)
self._addvol.connect("vol-created", self._vol_created_cb)
else:
self._addvol.set_parent_pool(self.conn, pool)
self._addvol.set_modal(self.topwin.get_modal())
self._addvol.set_name_hint(self._name_hint)
self._addvol.show(self.topwin)
except Exception as e:
self.err.show_err(_("Error launching volume wizard: %s") % str(e))
def _vol_delete_cb(self, src):
vol = self._current_vol()
if vol is None:
return
pool = self._current_pool()
result = self.err.yes_no(_("Are you sure you want to permanently "
"delete the volume %s?") % vol.get_name())
if not result:
return
def cb():
vol.delete()
def idlecb():
pool.refresh()
self.idle_add(idlecb)
log.debug("Deleting volume '%s'", vol.get_name())
vmmAsyncJob.simple_async_noshow(cb, [], self,
_("Error deleting volume '%s'") % vol.get_name())
#############################
# pool apply/config actions #
#############################
def _pool_apply(self):
pool = self._current_pool()
if pool is None:
return
log.debug("Applying changes for pool '%s'", pool.get_name())
try:
if EDIT_POOL_AUTOSTART in self._active_edits:
auto = self.widget("pool-autostart").get_active()
pool.set_autostart(auto)
if EDIT_POOL_NAME in self._active_edits:
pool.define_name(self.widget("pool-name-entry").get_text())
self.idle_add(self._populate_pools)
if EDIT_POOL_XML in self._active_edits:
pool.define_xml(self._xmleditor.get_xml())
except Exception as e:
self.err.show_err(_("Error changing pool settings: %s") % str(e))
return
self._disable_pool_apply()
def _enable_pool_apply(self, edittype):
self._active_edits.add(edittype)
self.widget("pool-apply").set_sensitive(True)
self._xmleditor.details_changed = True
def _disable_pool_apply(self):
self._active_edits = set()
self.widget("pool-apply").set_sensitive(False)
self._xmleditor.details_changed = False
def _confirm_changes(self):
if (self.is_visible() and
self._active_edits and
self.err.confirm_unapplied_changes()):
self._pool_apply()
self._disable_pool_apply()
return True
#############
# Listeners #
#############
def _browse_local_clicked_cb(self, src):
self.emit("browse-clicked")
def _choose_volume_clicked_cb(self, src):
self.emit("volume-chosen", self._current_vol())
def _vol_list_row_activated_cb(self, src, treeiter, viewcol):
self.emit("volume-chosen", self._current_vol())
def _pool_created_cb(self, src, connkey):
# The pool list will have already been updated, since this
# signal arrives only after pool-added. So all we do here is
# select the pool we just created.
uiutil.set_list_selection(self.widget("pool-list"), connkey)
def _vol_created_cb(self, src, pool_connkey, volname):
# The vol list will have already been updated, since this
# signal arrives only after pool-refreshed. So all we do here is
# select the vol we just created.
pool = self._current_pool()
if not pool or pool.get_connkey() != pool_connkey:
return
# Select the new volume
uiutil.set_list_selection(self.widget("vol-list"), volname)
def _pool_autostart_changed_cb(self, src):
self._enable_pool_apply(EDIT_POOL_AUTOSTART)
def _vol_selected_cb(self, src):
model, treeiter = src.get_selected()
self.widget("vol-delete").set_sensitive(bool(treeiter))
can_choose = bool(treeiter and model[treeiter][VOL_COLUMN_SENSITIVE])
self.widget("choose-volume").set_sensitive(can_choose)
def _vol_popup_menu_cb(self, src, event):
if event.button != 3:
return
self._volmenu.popup_at_pointer(event)
def _cancel_clicked_cb(self, src):
self.emit("cancel-clicked")
def _pool_changed_cb(self, pool):
self._update_pool_row(pool.get_connkey())
def _conn_state_changed_cb(self, conn):
self._refresh_conn_state()
def _conn_pools_changed_cb(self, src, connkey):
self._populate_pools()
def _pool_selected_cb(self, selection):
self._refresh_current_pool()
def _xmleditor_xml_requested_cb(self, src):
self._refresh_current_pool()
def _xmleditor_xml_reset_cb(self, src):
self._refresh_current_pool()