root / lib / hypervisor / __init__.py @ 4d32feba
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# Copyright (C) 2006, 2007, 2008 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (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, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# 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
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# 02110-1301, USA.
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"""Virtualization interface abstraction
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"""
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from ganeti import constants |
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from ganeti import errors |
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from ganeti.hypervisor import hv_fake |
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from ganeti.hypervisor import hv_xen |
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from ganeti.hypervisor import hv_kvm |
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from ganeti.hypervisor import hv_chroot |
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_HYPERVISOR_MAP = { |
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constants.HT_XEN_PVM: hv_xen.XenPvmHypervisor, |
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constants.HT_XEN_HVM: hv_xen.XenHvmHypervisor, |
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constants.HT_FAKE: hv_fake.FakeHypervisor, |
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constants.HT_KVM: hv_kvm.KVMHypervisor, |
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constants.HT_CHROOT: hv_chroot.ChrootManager, |
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} |
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def GetHypervisorClass(ht_kind): |
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"""Return a Hypervisor class.
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This function returns the hypervisor class corresponding to the
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given hypervisor name.
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@type ht_kind: string
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@param ht_kind: The requested hypervisor type
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"""
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if ht_kind not in _HYPERVISOR_MAP: |
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raise errors.HypervisorError("Unknown hypervisor type '%s'" % ht_kind) |
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cls = _HYPERVISOR_MAP[ht_kind] |
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return cls
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def GetHypervisor(ht_kind): |
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"""Return a Hypervisor instance.
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This is a wrapper over L{GetHypervisorClass} which returns an
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instance of the class.
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@type ht_kind: string
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@param ht_kind: The requested hypervisor type
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"""
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cls = GetHypervisorClass(ht_kind) |
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return cls()
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