mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-09 06:50:22 +00:00
0ea50f0148
Reviewed-by: Peter Krempa <pkrempa@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
411 lines
14 KiB
ReStructuredText
411 lines
14 KiB
ReStructuredText
=======================
|
|
RPM Deployment Guidance
|
|
=======================
|
|
|
|
.. contents::
|
|
|
|
A complete libvirt build includes a wide range of features, many of which are
|
|
dynamically loadable at runtime. Applications using libvirt typically only
|
|
need to use a subset of these features, and so do not require a full install
|
|
of all libvirt RPM packages.
|
|
|
|
This document provides some guidance on the RPM packages available with libvirt
|
|
on Fedora and related distributions, to enable applications and administrators
|
|
to pick the optimal set for their needs.
|
|
|
|
The RHEL and CentOS distributions use the same RPM packaging split, but many
|
|
of the drivers will be disabled at build time, so not all of the packages
|
|
listed on this page will exist.
|
|
|
|
|
|
RPM packages
|
|
============
|
|
|
|
* libvirt
|
|
|
|
This is an empty package that exists solely as a convenient way to install
|
|
every other libvirt RPM package. Almost every deployment scenario would be
|
|
better served by picking one of the other RPMs listed below.
|
|
|
|
* libvirt-admin
|
|
|
|
The virt-admin tool, used for administrative operations on any libvirt
|
|
daemons. Most usefully it allows for logging filters and outputs to be
|
|
reconfigured on a running daemon without a restart. This is recommended
|
|
to be installed on any host running a libvirt daemon.
|
|
|
|
|
|
* libvirt-bash-completion
|
|
|
|
Argument auto-completion support for the Bash shell. This is shared code that
|
|
is pulled in by either the libvirt-admin or libvirt-clients RPMs, so there is
|
|
no need to explicitly ask for this package to be installed.
|
|
|
|
|
|
* libvirt-client
|
|
|
|
The virsh tool, used for interacting with any libvirt driver, both primary
|
|
virt drivers and secondary drivers for storage, networking, etc. All libvirt
|
|
installs should have this installed as it provides a useful way to view and
|
|
debug what is being done by other applications using libvirt.
|
|
|
|
|
|
* libvirt-daemon
|
|
|
|
The monolithic libvirtd daemon, traditionally used for running all the
|
|
stateful drivers. This package does not contain any drivers, so further
|
|
packages need to be installed to provide the desired drivers.
|
|
|
|
|
|
* libvirt-daemon-config-network
|
|
|
|
The sample configuration file providing the 'default' virtual network that
|
|
enables outbound NAT based connectivity for virtual machines. This is useful
|
|
on desktop installations, but is not typically desired on server
|
|
installations where VMs will use full bridged connectivity.
|
|
|
|
|
|
* libvirt-daemon-config-nwfilter
|
|
|
|
The sample configuration files providing the network filters for protecting
|
|
against common malicious guest traffic. This includes protection against ARP,
|
|
MAC and IP spoofing. This is typically desired on server installations, if
|
|
the mgmt app is using libvirt's network filtering features.
|
|
|
|
|
|
* libvirt-daemon-driver-interface
|
|
|
|
The dynamically loadable driver providing an implementation of the host
|
|
network interface management APIs, as well as the virtinterfaced daemon
|
|
binary.
|
|
|
|
|
|
* libvirt-daemon-driver-libxl
|
|
|
|
The dynamically loadable driver providing an implementation of the hypervisor
|
|
APIs for Xen using the libxl library, as well as the virtxend daemon
|
|
binary.
|
|
|
|
Note that this is a minimal package so does not actually pull in the full
|
|
Xen hypervisor package set. This be must requested separately.
|
|
|
|
|
|
* libvirt-daemon-driver-lxc
|
|
|
|
The dynamically loadable driver providing an implementation of the hypervisor
|
|
APIs for Linux containers, as well as the virtlxcd daemon binary.
|
|
|
|
|
|
* libvirt-daemon-driver-network
|
|
|
|
The dynamically loadable driver providing an implementation of the virtual
|
|
network interface management APIs, as well as the virtinterfaced daemon
|
|
binary. Typically the libvirt-daemon-config-network RPM will also be desired
|
|
when this is installed.
|
|
|
|
|
|
* libvirt-daemon-driver-nodedev
|
|
|
|
The dynamically loadable driver providing an implementation of the host
|
|
device management APIs, as well as the virtnodedevd daemon binary.
|
|
|
|
|
|
* libvirt-daemon-driver-nwfilter
|
|
|
|
The dynamically loadable driver providing an implementation of the host
|
|
network firewall management APIs, as well as the virtnwfilterd daemon
|
|
binary.
|
|
|
|
|
|
* libvirt-daemon-driver-qemu
|
|
|
|
The dynamically loadable driver providing an implementation of the hypervisor
|
|
network interface management APIs, as well as the virtqemud daemon
|
|
binary.
|
|
|
|
Note that this is a minimal package so does not actually pull in the full
|
|
QEMU or KVM package set. This be must requested separately.
|
|
|
|
|
|
* libvirt-daemon-driver-secret
|
|
The dynamically loadable driver providing an implementation of the secret
|
|
data management APIs, as well as the virtsecretd daemon binary.
|
|
|
|
|
|
* libvirt-daemon-driver-storage
|
|
|
|
This is an empty package that exists only as a convenient way to request
|
|
installation of all the storage pool drivers.
|
|
|
|
If the application only supports a subset of storage pool types, then
|
|
a smaller install footprint can be obtained by requesting the individual
|
|
drivers.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-core
|
|
|
|
The dynamically loadable driver providing an implementation of the host
|
|
storage pool/volume management APIs, as well as the virtstoraged daemon
|
|
binary.
|
|
|
|
Note that this is a minimal package so does not actually pull in any pool
|
|
implementations.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-disk
|
|
|
|
The dynamically loadable driver providing an implementation of the disk
|
|
partition storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-gluster
|
|
|
|
The dynamically loadable driver providing an implementation of the GlusterFS
|
|
file storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-iscsi
|
|
|
|
The dynamically loadable driver providing an implementation of the ISCSI
|
|
disk storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-iscsi-direct
|
|
|
|
The dynamically loadable driver providing an implementation of the ISCSI
|
|
network storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-logical
|
|
|
|
The dynamically loadable driver providing an implementation of the LVM
|
|
storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-mpath
|
|
|
|
The dynamically loadable driver providing an implementation of the multipath
|
|
disk storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-rbd
|
|
|
|
The dynamically loadable driver providing an implementation of the RBD
|
|
network storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-scsi
|
|
|
|
The dynamically loadable driver providing an implementation of the SCSI
|
|
disk storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-sheepdog
|
|
|
|
The dynamically loadable driver providing an implementation of the SheepDog
|
|
network storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-storage-zfs
|
|
|
|
The dynamically loadable driver providing an implementation of the ZFS
|
|
file storage pool type, for the storage pool management APIs.
|
|
|
|
|
|
* libvirt-daemon-driver-vbox
|
|
|
|
The dynamically loadable driver providing an implementation of the host
|
|
network interface management APIs, as well as the virtinterfaced daemon
|
|
binary.
|
|
|
|
|
|
* libvirt-daemon-kvm
|
|
|
|
This is an empty package that exists only as a convenient way to request
|
|
installation of all the libvirt features that are relevant to the management
|
|
of KVM guests. This includes the QEMU driver, and the secondary drivers for
|
|
secrets, storage pools, virtual networks, host interfaces, host devices
|
|
and network filtering.
|
|
|
|
It will also pull in the full set of QEMU features that can be utilized with
|
|
native architecture KVM guests.
|
|
|
|
This is a good default for an installation to use KVM if the specific set of
|
|
required features is not known. To have finer grained control over the
|
|
features, the subset of libvirt-daemon-driver-XXX packages should be used
|
|
instead.
|
|
|
|
|
|
* libvirt-daemon-lxc
|
|
|
|
This is an empty package that exists only as a convenient way to request
|
|
installation of all the libvirt features that are relevant to the management
|
|
of Linux containers. This includes the LXC driver, and the secondary drivers
|
|
for secrets, storage pools, virtual networks, host interfaces, host devices
|
|
and network filtering.
|
|
|
|
This is a good default for an installation to use LXC if the specific set of
|
|
required features is not known. To have finer grained control over the
|
|
features, the subset of libvirt-daemon-driver-XXX packages should be used
|
|
instead.
|
|
|
|
|
|
* libvirt-daemon-qemu
|
|
|
|
This is an empty package that exists only as a convenient way to request
|
|
installation of all the libvirt features that are relevant to the management
|
|
of QEMU guests. This includes the QEMU driver, and the secondary drivers for
|
|
secrets, storage pools, virtual networks, host interfaces, host devices
|
|
and network filtering.
|
|
|
|
It will also pull in the full set of QEMU features that can be utilized to
|
|
emulate any guests architecture supported by QEMU.
|
|
|
|
This is a good default for an installation to use QEMU if the specific set of
|
|
required features is not known. To have finer grained control over the
|
|
features, the subset of libvirt-daemon-driver-XXX packages should be used
|
|
instead.
|
|
|
|
|
|
* libvirt-daemon-vbox
|
|
|
|
This is an empty package that exists only as a convenient way to request
|
|
installation of all the libvirt features that are relevant to the management
|
|
of KVM guests. This includes the QEMU driver, and the secondary drivers for
|
|
secrets, storage pools, virtual networks, host interfaces, host devices
|
|
and network filtering.
|
|
|
|
This is a good default for an installation to use VirtualBox if the specific
|
|
set of required features is not known. To have finer grained control over the
|
|
features, the subset of libvirt-daemon-driver-XXX packages should be used
|
|
instead.
|
|
|
|
|
|
* libvirt-daemon-xen
|
|
|
|
This is an empty package that exists only as a convenient way to request
|
|
installation of all the libvirt features that are relevant to the management
|
|
of KVM guests. This includes the QEMU driver, and the secondary drivers for
|
|
secrets, storage pools, virtual networks, host interfaces, host devices
|
|
and network filtering.
|
|
|
|
It will also pull in the full set of Xen features that can be utilized with
|
|
Xen guests.
|
|
|
|
This is a good default for an installation to use Xen if the specific set of
|
|
required features is not known. To have finer grained control over the
|
|
features, the subset of libvirt-daemon-driver-XXX packages should be used
|
|
instead.
|
|
|
|
|
|
* libvirt-devel
|
|
|
|
The header files required to build applications, or language bindings against
|
|
the libvirt C library. This should never be required on a production host,
|
|
only development hosts.
|
|
|
|
* libvirt-docs
|
|
|
|
A local copy of the `libvirt website <https://libvirt.org>`_ website content
|
|
that matches the deployed version of libvirt.
|
|
|
|
* libvirt-libs
|
|
|
|
The ELF libraries providing the main application interface to libvirt. These
|
|
have stateless drivers (VMWare ESX, HyperV, etc) built-in, and are able to
|
|
take to the libvirt daemons to utilize stateful drivers (QEMU, Xen, BHyve,
|
|
LXC, VZ, etc). This is needed on all libvirt hosts, both client and server.
|
|
|
|
* libvirt-lock-sanlock
|
|
|
|
A plugin for locking disks that communicates with the sanlock daemon. It is
|
|
optional and only relevant to hosts with the QEMU driver and oVirt management
|
|
application.
|
|
|
|
* libvirt-login-shell
|
|
|
|
A simple login shell that automatically spawns an LXC container for the user
|
|
logging in and places them in a shell inside that container.
|
|
|
|
|
|
* libvirt-nss
|
|
|
|
A NSS plugin that provides hostname resolution for guests attached to a
|
|
libvirt virtual network. It is recommended to be installed on any host with
|
|
guests using the libvirt virtual network connectivity.
|
|
|
|
|
|
* libvirt-wireshark
|
|
|
|
A wireshark plugin that allows for dissecting the XDR based RPC protocol used
|
|
between libvirt and its daemons. Since production deployments should all be
|
|
using a TLS encrypted, this only useful for development hosts with a libvirt
|
|
daemon configured without encryption.
|
|
|
|
|
|
Deployment choices
|
|
==================
|
|
|
|
Client only install
|
|
-------------------
|
|
|
|
If an application is capable of using multiple different virtualization drivers
|
|
it is undesirable to force the installation of a specific set of drivers. In
|
|
this case the application will merely wish to request a client only install
|
|
|
|
Alternatively if an application is intended to communicate with a hypervisor on
|
|
a remote host there is no need to install drivers locally, only a client is
|
|
needed
|
|
|
|
The only required package is the `libvirt-libs`, however, it is useful to
|
|
also install `libvirt-client`.
|
|
|
|
|
|
Every possible virt driver
|
|
--------------------------
|
|
|
|
There is rarely a need to install every virt driver at once on a given host.
|
|
In the unlikely event that this is needed, however, the `libvirt` package
|
|
should be installed.
|
|
|
|
Note that this doesn't actually pull in the hypervisors, only the libvirt
|
|
code to talk to the hypervisors.
|
|
|
|
|
|
Full features for one virt driver
|
|
---------------------------------
|
|
|
|
This is a common default installation profile when there is no need to minimise
|
|
the on-disk footprint.
|
|
|
|
This is achieved by installing the `libvirt-daemon-XXXX` package for the
|
|
virtualization driver that is desired. This will also pull in the default
|
|
set of hypervisor packages too.
|
|
|
|
Since this installs every possible libvirt feature for the virtualization
|
|
driver in question, the on-disk footprint is quite large. The in-memory
|
|
footprint of the daemons is also relatively large since a lot of code is
|
|
loaded.
|
|
|
|
|
|
Minimal features for one virt driver
|
|
------------------------------------
|
|
|
|
This is the best installation profile when it is desired to minimize the
|
|
on-disk footprint.
|
|
|
|
This is achieved by installing the individual `libvirt-daemon-driver-XXX`
|
|
packages needed for the features that will be used. This will not pull in the
|
|
hypervisor packages, allowing a fine grained set of hypervisor features to be
|
|
chosen separately.
|
|
|
|
Since this allows fine grained installation of individual libvirt drivers,
|
|
this results in the lowest on-disk footprint. The in-memory footprint of
|
|
the daemons is also minimized by reducing the code loaded.
|
|
|
|
As an example, the smallest possible installation for running KVM guests can
|
|
be achieved by installing `libvirt-daemon-driver-qemu` and `qemu-kvm-core`.
|
|
This will exclude all the secondary libvirt drivers for storage, networking
|
|
and host devices, leaving only the bare minimum functionality for managing
|
|
KVM guests.
|