Statistics
| Branch: | Tag: | Revision:

root / lib / hypervisor / __init__.py @ e69d05fd

History | View | Annotate | Download (1.6 kB)

1
#
2
#
3

    
4
# Copyright (C) 2006, 2007, 2008 Google Inc.
5
#
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.
10
#
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.
15
#
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
19
# 02110-1301, USA.
20

    
21

    
22
"""Virtualization interface abstraction
23

24
"""
25

    
26
from ganeti import constants
27
from ganeti import errors
28

    
29
from ganeti.hypervisor import hv_fake
30
from ganeti.hypervisor import hv_xen
31
from ganeti.hypervisor import hv_kvm
32

    
33

    
34
_HYPERVISOR_MAP = {
35
    constants.HT_XEN_PVM30: hv_xen.XenPvmHypervisor,
36
    constants.HT_XEN_HVM31: hv_xen.XenHvmHypervisor,
37
    constants.HT_FAKE: hv_fake.FakeHypervisor,
38
    constants.HT_KVM: hv_kvm.KVMHypervisor,
39
    }
40

    
41

    
42
def GetHypervisor(ht_kind):
43
  """Return a Hypervisor instance.
44

45
  This function parses the cluster hypervisor configuration file and
46
  instantiates a class based on the value of this file.
47

48
  @type ht_kind: string
49
  @param ht_kind: The requested hypervisor type
50

51
  """
52
  if ht_kind not in _HYPERVISOR_MAP:
53
    raise errors.HypervisorError("Unknown hypervisor type '%s'" % ht_kind)
54

    
55
  cls = _HYPERVISOR_MAP[ht_kind]
56
  return cls()