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nova/doc/source/admin/configuration/hypervisors.rst
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Stephen Finucane 3a390c2c82 libvirt: Drop support for Xen
This hasn't been validated upstream and there doesn't appear to be
anyone using it. It's time to drop support for this. This is mostly test
and documentation damage, though there is some other cleanup going on,
like the removal of the essentially noop 'pick_disk_driver_name' helper.

Change-Id: I73305e82da5d8da548961b801a8e75fb0e8c4cf1
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
2021-01-22 10:06:40 +00:00

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3.3 KiB
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===========
Hypervisors
===========
.. toctree::
:maxdepth: 1
hypervisor-basics
hypervisor-kvm
hypervisor-qemu
hypervisor-lxc
hypervisor-vmware
hypervisor-hyper-v
hypervisor-virtuozzo
hypervisor-powervm
hypervisor-zvm
hypervisor-ironic
OpenStack Compute supports many hypervisors, which might make it difficult for
you to choose one. Most installations use only one hypervisor. However, you
can use :ref:`ComputeFilter` and :ref:`ImagePropertiesFilter` to schedule
different hypervisors within the same installation. The following links help
you choose a hypervisor. See :doc:`/user/support-matrix` for a detailed list
of features and support across the hypervisors.
The following hypervisors are supported:
* `KVM`_ - Kernel-based Virtual Machine. The virtual disk formats that it
supports is inherited from QEMU since it uses a modified QEMU program to
launch the virtual machine. The supported formats include raw images, the
qcow2, and VMware formats.
* `LXC`_ - Linux Containers (through libvirt), used to run Linux-based virtual
machines.
* `QEMU`_ - Quick EMUlator, generally only used for development purposes.
* `VMware vSphere`_ 5.1.0 and newer - Runs VMware-based Linux and Windows
images through a connection with a vCenter server.
* `Hyper-V`_ - Server virtualization with Microsoft Hyper-V, use to run
Windows, Linux, and FreeBSD virtual machines. Runs ``nova-compute`` natively
on the Windows virtualization platform.
* `Virtuozzo`_ 7.0.0 and newer - OS Containers and Kernel-based Virtual
Machines supported via libvirt virt_type=parallels. The supported formats
include ploop and qcow2 images.
* `PowerVM`_ - Server virtualization with IBM PowerVM for AIX, IBM i, and Linux
workloads on the Power Systems platform.
* `zVM`_ - Server virtualization on z Systems and IBM LinuxONE, it can run Linux,
z/OS and more.
* `Ironic`_ - OpenStack project which provisions bare metal (as opposed to virtual)
machines.
Nova supports hypervisors via virt drivers. Nova has the following in tree
virt drivers:
* :oslo.config:option:`compute_driver` = ``libvirt.LibvirtDriver``
This driver runs on Linux and supports multiple hypervisor backends, which
can be configured via the :oslo.config:option:`libvirt.virt_type` config
option.
* :oslo.config:option:`compute_driver` = ``ironic.IronicDriver``
* :oslo.config:option:`compute_driver` = ``vmwareapi.VMwareVCDriver``
* :oslo.config:option:`compute_driver` = ``hyperv.HyperVDriver``
* :oslo.config:option:`compute_driver` = ``powervm.PowerVMDriver``
* :oslo.config:option:`compute_driver` = ``zvm.ZVMDriver``
* :oslo.config:option:`compute_driver` = ``fake.FakeDriver``
This driver does not spawn any virtual machines and therefore should only be
used during testing.
.. _KVM: https://www.linux-kvm.org/page/Main_Page
.. _LXC: https://linuxcontainers.org
.. _QEMU: https://wiki.qemu.org/Manual
.. _VMware vSphere: https://www.vmware.com/support/vsphere-hypervisor.html
.. _Hyper-V: https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/hyper-v-technology-overview
.. _Virtuozzo: https://www.virtuozzo.com/products/vz7.html
.. _PowerVM: https://www.ibm.com/us-en/marketplace/ibm-powervm
.. _zVM: https://www.ibm.com/it-infrastructure/z/zvm
.. _Ironic: https://docs.openstack.org/ironic/latest/