4 # Copyright (C) 2006, 2007, 2008 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 """Virtualization interface abstraction
26 from ganeti import constants
27 from ganeti import errors
29 from ganeti.hypervisor import hv_fake
30 from ganeti.hypervisor import hv_xen
31 from ganeti.hypervisor import hv_kvm
35 constants.HT_XEN_PVM: hv_xen.XenPvmHypervisor,
36 constants.HT_XEN_HVM: hv_xen.XenHvmHypervisor,
37 constants.HT_FAKE: hv_fake.FakeHypervisor,
38 constants.HT_KVM: hv_kvm.KVMHypervisor,
42 def GetHypervisorClass(ht_kind):
43 """Return a Hypervisor class.
45 This function returns the hypervisor class corresponding to the
46 given hypervisor name.
49 @param ht_kind: The requested hypervisor type
52 if ht_kind not in _HYPERVISOR_MAP:
53 raise errors.HypervisorError("Unknown hypervisor type '%s'" % ht_kind)
55 cls = _HYPERVISOR_MAP[ht_kind]
59 def GetHypervisor(ht_kind):
60 """Return a Hypervisor instance.
62 This is a wrapper over L{GetHypervisorClass} which returns an
63 instance of the class.
66 @param ht_kind: The requested hypervisor type
69 cls = GetHypervisorClass(ht_kind)