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When configuring OVS interfaces/bridges we spawn 'ovs-vsctl' with appropriate arguments and if it exited with a non-zero status we report a generic error message, like "Unable to add port vnet0 to OVS bridge ovsbr0". This is all cool, but the real reason why operation failed is hidden in (debug) logs because that's where virCommandRun() reports it unless caller requested otherwise. This is a bit clumsy because then we have to ask users to turn on debug logs and reproduce the problem again, e.g. [1]. Therefore, in cases where an error is reported to the user - just read ovs-vsctl's stderr and include it in the error message. For other cases (like VIR_DEBUG/VIR_WARN) - well they are meant to end up in (debug) logs anyway. 1: https://mail.openvswitch.org/pipermail/ovs-discuss/2023-September/052640.html Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@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: