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Daniel P. Berrangé 3e9b561139 remote: add support for probing drivers with modular daemons
With the traditional libvirtd, the virConnectOpen call will probe active
drivers server side to find which one to use when the URI is NULL/empty.

With the modular daemons though, the remote client does not know which
daemon to connect in the first place, so we can't rely on virConnectOpen
probing. Currently the virtproxyd daemon has code to probe for a
possible driver by looking at which sockets are listening or which
binaries are installed. The remote client can thus connect to virtproxyd
which in turn can connect to a real hypervisor driver.

The virtproxyd probing code though isn't something that needs to live in
virtproxyd. By moving it into the remote client we can get probing
client side in all scenarios and avoid the extra trip via virtproxyd in
the common case.

Tested-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-06-18 16:19:53 +01:00
.ctags.d maint: Add support for .ctags.d 2019-05-31 17:54:28 +02:00
.github github: skip lockdown of old issues/prs 2020-04-07 17:50:54 +01:00
.gitlab/issue_templates gitlab: Add issue template for a feature request 2020-12-02 09:11:27 +01:00
build-aux syntax-check: Only prohibit empty first lines in non-empty files 2021-06-15 14:15:42 +02:00
ci gitlab: avoid building libvirt twice and running syntax-check twice 2021-05-12 14:18:15 +01:00
docs conf: require target for external virtiofsd 2021-06-17 10:51:24 +02:00
examples nodedev: add DEFINED/UNDEFINED lifecycle events 2021-04-07 15:07:45 -05:00
include Add basic driver for the Cloud-Hypervisor 2021-06-04 10:56:06 +01:00
po Translated using Weblate (Korean) 2021-06-07 10:46:26 +02:00
scripts lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
src remote: add support for probing drivers with modular daemons 2021-06-18 16:19:53 +01:00
tests tests: qemuxml2*: Add QEMU_CAPS_EGL_HEADLESS to fake-caps tests using egl-headless graphics 2021-06-18 09:16:16 +02:00
tools virsh-volume: Apply virshStorageVolNameCompleter to vol-{key,path} commands 2021-06-16 10:32:43 +02:00
.color_coded.in gnulib: delete all gnulib integration 2020-02-07 15:03:54 +00:00
.ctags ctags: Generate tags for headers, i.e. function prototypes 2018-09-18 14:21:33 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
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.gitignore gitignore: Ignore __pycache__ directory 2021-03-22 12:05:11 +01:00
.gitlab-ci.yml gitlab-ci: Don't build docs in 'sanitizer' jobs 2021-06-16 13:05:37 +02:00
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AUTHORS.rst.in AUTHORS: Remove Emacs file variables 2020-09-02 13:20:17 +02:00
CONTRIBUTING.rst meson: adjust our documentation to mention meson instead of autoconf 2020-08-03 09:27:09 +02:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
NEWS.rst Post-release version bump to 7.5.0 2021-06-01 12:05:41 +02:00
README.rst README: drop Travis CI badge 2020-08-03 15:08:28 +02:00
config.h meson: Declare GLIB_VERSION_* macros at configure 2021-05-03 12:08:26 +02:00
configmake.h.in meson: generate configmake.h 2020-08-03 09:26:48 +02:00
gitdm.config gitdm: add 'ibm' file 2019-10-18 17:32:52 +02:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in Add basic driver for the Cloud-Hypervisor 2021-06-04 10:56:06 +01:00
meson.build remote: add support for probing drivers with modular daemons 2021-06-18 16:19:53 +01:00
meson_options.txt Add basic driver for the Cloud-Hypervisor 2021-06-04 10:56:06 +01:00
mingw-libvirt.spec.in meson: Turn apparmor_profiles into a feature 2021-06-01 14:32:02 +02:00
run.in run: fix spawning of daemons 2021-04-07 11:41:26 +01:00

README.rst

.. image:: https://gitlab.com/libvirt/libvirt/badges/master/pipeline.svg
     :target: https://gitlab.com/libvirt/libvirt/pipelines
     :alt: GitLab CI Build Status
.. image:: https://bestpractices.coreinfrastructure.org/projects/355/badge
     :target: https://bestpractices.coreinfrastructure.org/projects/355
     :alt: CII Best Practices
.. image:: https://translate.fedoraproject.org/widgets/libvirt/-/libvirt/svg-badge.svg
     :target: https://translate.fedoraproject.org/engage/libvirt/
     :alt: Translation status

==============================
Libvirt API for virtualization
==============================

Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.

For some of these hypervisors, it provides a stateful management
daemon which runs on the virtualization host allowing access to the
API both by non-privileged local users and remote users.

Layered packages provide bindings of the libvirt C API into other
languages including Python, Perl, PHP, Go, Java, OCaml, as well as
mappings into object systems such as GObject, CIM and SNMP.

Further information about the libvirt project can be found on the
website:

https://libvirt.org


License
=======

The libvirt C API is distributed under the terms of GNU Lesser General
Public License, version 2.1 (or later). Some parts of the code that are
not part of the C library may have the more restrictive GNU General
Public License, version 2.0 (or later). See the files ``COPYING.LESSER``
and ``COPYING`` for full license terms & conditions.


Installation
============

Instructions on building and installing libvirt can be found on the website:

https://libvirt.org/compiling.html

Contributing
============

The libvirt project welcomes contributions in many ways. For most components
the best way to contribute is to send patches to the primary development
mailing list. Further guidance on this can be found on the website:

https://libvirt.org/contribute.html


Contact
=======

The libvirt project has two primary mailing lists:

* libvirt-users@redhat.com (**for user discussions**)
* libvir-list@redhat.com (**for development only**)

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html