Source Code for Package ganeti.hypervisor

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29   
30   
31  """Virtualization interface abstraction 
32   
33  """ 
34   
35  from ganeti import constants 
36  from ganeti import errors 
37   
38  from ganeti.hypervisor import hv_fake 
39  from ganeti.hypervisor import hv_xen 
40  from ganeti.hypervisor import hv_kvm 
41  from ganeti.hypervisor import hv_chroot 
42  from ganeti.hypervisor import hv_lxc 
43   
44   
45  _HYPERVISOR_MAP = { 
46    constants.HT_XEN_PVM: hv_xen.XenPvmHypervisor, 
47    constants.HT_XEN_HVM: hv_xen.XenHvmHypervisor, 
48    constants.HT_FAKE: hv_fake.FakeHypervisor, 
49    constants.HT_KVM: hv_kvm.KVMHypervisor, 
50    constants.HT_CHROOT: hv_chroot.ChrootManager, 
51    constants.HT_LXC: hv_lxc.LXCHypervisor, 
52    } 
53   
54   
55 -def GetHypervisorClass(ht_kind): 
56    """Return a Hypervisor class. 
57   
58    This function returns the hypervisor class corresponding to the 
59    given hypervisor name. 
60   
61    @type ht_kind: string 
62    @param ht_kind: The requested hypervisor type 
63   
64    """ 
65    if ht_kind not in _HYPERVISOR_MAP: 
66      raise errors.HypervisorError("Unknown hypervisor type '%s'" % ht_kind) 
67   
68    cls = _HYPERVISOR_MAP[ht_kind] 
69    return cls 
70   
71   
72 -def GetHypervisor(ht_kind): 
73    """Return a Hypervisor instance. 
74   
75    This is a wrapper over L{GetHypervisorClass} which returns an 
76    instance of the class. 
77   
78    @type ht_kind: string 
79    @param ht_kind: The requested hypervisor type 
80   
81    """ 
82    cls = GetHypervisorClass(ht_kind) 
83   
84    return cls() 
85