2009-09-16 15:42:24 +00:00
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libvirt library code README
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===========================
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The directory provides the bulk of the libvirt codebase. Everything
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except for the libvirtd daemon and client tools. The build uses a
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large number of libtool convenience libraries - one for each child
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directory, and then links them together for the final libvirt.so,
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although some bits get linked directly to libvirtd daemon instead.
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The files directly in this directory are supporting the public API
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entry points & data structures.
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There are two core shared modules to be aware of:
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* util/ - a collection of shared APIs that can be used by any
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code. This directory is always in the include path
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for all things built
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* conf/ - APIs for parsing / manipulating all the official XML
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files used by the public API. This directory is only
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in the include path for driver implementation modules
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2011-02-12 16:09:28 +00:00
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* vmx/ - VMware VMX config handling (used by esx/ and vmware/)
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2009-09-16 15:42:24 +00:00
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Then there are the hypervisor implementations:
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2014-03-01 09:04:56 +00:00
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* bhyve - bhyve - The BSD Hypervisor
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2009-09-16 15:42:24 +00:00
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* esx/ - VMware ESX and GSX support using vSphere API over SOAP
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2011-07-13 15:13:42 +00:00
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* hyperv/ - Microsoft Hyper-V support using WinRM
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2009-09-16 15:42:24 +00:00
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* lxc/ - Linux Native Containers
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* openvz/ - OpenVZ containers using cli tools
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* qemu/ - QEMU / KVM using qemu CLI/monitor
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* remote/ - Generic libvirt native RPC client
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* test/ - A "mock" driver for testing
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* vbox/ - Virtual Box using native API
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2011-02-12 16:09:28 +00:00
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* vmware/ - VMware Workstation and Player using the vmrun tool
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2009-09-16 15:42:24 +00:00
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* xen/ - Xen using hypercalls, XenD SEXPR & XenStore
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Finally some secondary drivers that are shared for several HVs.
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2018-12-14 13:45:07 +00:00
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Currently these are used by LXC, OpenVZ, QEMU and Xen drivers.
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2019-12-18 15:23:34 +00:00
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The ESX, Hyper-V, Remote, Test & VirtualBox drivers all
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Remove the Open Nebula driver
The Open Nebula driver has been unmaintained since it was first
introduced. The only commits have been for tree-wide cleanups.
It also has a major design flaw, in that it only knows about guests
that it has created itself, which makes it of very limited use.
Discussions wrt evolution of the VMWare ESX driver, concluded that
it should limit itself to single-node ESX operation and not try to
manage the multi-node architecture of VirtualCenter. Open Nebula
is a cluster like Virtual Center, not a single node system, so
the same reasoning applies.
The DeltaCloud project includes an Open Nebula driver and is a much
better fit architecturally, since it is explicitly targetting the
distributed multihost cluster scenario.
Thus this patch deletes the libvirt Open Nebula driver with the
recommendation that people use DeltaCloud for managing it instead.
* configure.ac: Remove probe for xmlrpc & --with-one arg
* daemon/Makefile.am, daemon/libvirtd.c, src/Makefile.am: Remove
ONE driver build
* src/opennebula/one_client.c, src/opennebula/one_client.h,
src/opennebula/one_conf.c, src/opennebula/one_conf.h,
src/opennebula/one_driver.c, src/opennebula/one_driver.c: Delete
files
* autobuild.sh, libvirt.spec.in, mingw32-libvirt.spec.in: Remove
build rules for Open Nebula
* docs/drivers.html.in, docs/sitemap.html.in: Remove reference
to OpenNebula
* docs/drvone.html.in: Delete file
2011-03-22 16:12:34 +00:00
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implement the secondary drivers directly
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2009-09-16 15:42:24 +00:00
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2011-02-12 16:09:28 +00:00
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* cpu/ - CPU feature management
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2009-09-16 15:42:24 +00:00
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* interface/ - Host network interface management
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* network/ - Virtual NAT networking
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2011-02-12 16:09:28 +00:00
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* nwfilter/ - Network traffic filtering rules
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2009-09-16 15:42:24 +00:00
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* node_device/ - Host device enumeration
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* secret/ - Secret management
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* security/ - Mandatory access control drivers
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* storage/ - Storage management drivers
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Since both the hypervisor and secondary drivers can be built as
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dlopen()able modules, it is *FORBIDDEN* to have build dependencies
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between these directories. Drivers are only allowed to depend on
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the public API, and the internal APIs in the util/ and conf/
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directories
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