35cb82cd2b
We still can't support running HVM template and its VMs simultaneously (easily), but still, have root-cow.img handled for HVM template, to allow qvm-revert-template-changes. Fixes QubesOS/qubes-issues#1573
111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
#!/usr/bin/python2
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# -*- coding: utf-8 -*-
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2010 Joanna Rutkowska <joanna@invisiblethingslab.com>
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# Copyright (C) 2013 Marek Marczykowski <marmarek@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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import os
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import os.path
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import subprocess
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import stat
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import sys
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import re
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from qubes.qubes import QubesHVm,register_qubes_vm_class,dry_run,vmm
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from qubes.qubes import QubesException,QubesVmCollection
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from qubes.qubes import system_path,defaults
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class QubesTemplateHVm(QubesHVm):
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"""
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A class that represents an HVM template. A child of QubesHVm.
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"""
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# In which order load this VM type from qubes.xml
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load_order = 50
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def get_attrs_config(self):
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attrs_config = super(QubesTemplateHVm, self).get_attrs_config()
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attrs_config['dir_path']['func'] = \
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lambda value: value if value is not None else \
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os.path.join(system_path["qubes_templates_dir"], self.name)
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attrs_config['label']['default'] = defaults["template_label"]
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return attrs_config
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def __init__(self, **kwargs):
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super(QubesTemplateHVm, self).__init__(**kwargs)
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self.appvms = QubesVmCollection()
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@property
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def type(self):
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return "TemplateHVM"
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@property
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def updateable(self):
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return True
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def is_template(self):
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return True
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def is_appvm(self):
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return False
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@property
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def rootcow_img(self):
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return self.storage.rootcow_img
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@classmethod
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def is_template_compatible(cls, template):
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if template is None:
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return True
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return False
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def resize_root_img(self, size):
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for vm in self.appvms.values():
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if vm.is_running():
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raise QubesException("Cannot resize root.img while any VM "
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"based on this tempate is running")
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return super(QubesTemplateHVm, self).resize_root_img(size)
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def start(self, *args, **kwargs):
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for vm in self.appvms.values():
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if vm.is_running():
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raise QubesException("Cannot start HVM template while VMs based on it are running")
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return super(QubesTemplateHVm, self).start(*args, **kwargs)
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def commit_changes (self, verbose = False):
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self.log.debug('commit_changes()')
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if not vmm.offline_mode:
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assert not self.is_running(), "Attempt to commit changes on running Template VM!"
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if verbose:
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print >> sys.stderr, "--> Commiting template updates... COW: {0}...".format (self.rootcow_img)
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if dry_run:
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return
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self.storage.commit_template_changes()
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register_qubes_vm_class(QubesTemplateHVm)
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