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"""
Copyright (C) 2023 Michael Ablassmeier <abi@grinser.de>
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 3 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, see <https://www.gnu.org/licenses/>.
"""
import logging
import libvirt
log = logging.getLogger("fs")
def freeze(domObj: libvirt.virDomain, mountpoints: None) -> bool:
"""Attempt to freeze domain filesystems using qemu guest agent"""
state, _ = domObj.state()
if state == libvirt.VIR_DOMAIN_PAUSED:
log.info("Skip freezing filesystems: domain is in paused state")
return False
log.debug("Attempting to freeze filesystems.")
try:
if mountpoints is not None:
frozen = domObj.fsFreeze(mountpoints.split(","))
else:
frozen = domObj.fsFreeze()
log.info("Freezed [%s] filesystems.", frozen)
return True
except libvirt.libvirtError as errmsg:
log.warning(errmsg)
return False
def thaw(domObj: libvirt.virDomain) -> bool:
"""Thaw freezed filesystems"""
log.debug("Attempting to thaw filesystems.")
try:
thawed = domObj.fsThaw()
log.info("Thawed [%s] filesystems.", thawed)
return True
except libvirt.libvirtError as errmsg:
log.warning(errmsg)
return False
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