88d0e6748d
With the introduction of external snapshot revert support we need to error out in some cases when trying to delete some snapshots. If users reverts to non-leaf snapshots and would try to delete it after the revert is done it would not work currently as this operation would require using block-stream which is not implemented for now as in this case the snapshot has two children so the disk files have multiple overlays. Similarly if user reverts to non-leaf snapshot and would try to delete snapshot that is non-leaf but not in currently active snapshot chain we would still need to use block-commit operation. The issue here is that in order to do that we would have to start new qemu process with different domain definition than what is currently used by the domain. If the current domain would be running it would complicate things even more so this operation is not yet supported. If user creates new snapshot after reverting to non-leaf snapshot it creates a new branch. Deleting snapshot with multiple children will require block-stream which is not implemented for now. Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> |
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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:
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: