virt-xml-validate is a command-line tool that is used to validate libvirt XML files against a schema. Libvirt is a virtualization API that provides a common interface for managing various virtualization technologies such as KVM, QEMU, Xen, and others. Libvirt XML files are used to define and configure virtual machines, storage volumes, network interfaces, and other virtualization resources.
When creating or modifying a libvirt XML file, it is important to ensure that the file is valid and conforms to the libvirt XML schema. The virt-xml-validate tool allows users to check if a libvirt XML file is valid and to identify any errors or issues in the file.
By default, virt-xml-validate determines the schema to validate the XML file based on the root element in the file. If a schema is not specified, virt-xml-validate will attempt to validate the XML file against the default schema for the corresponding libvirt object.
In addition to validating the XML file against the schema, virt-xml-validate can also be used to generate a sample XML file for a given libvirt object. This can be useful for quickly creating a new libvirt XML file or for referencing the XML schema and structure for a particular libvirt object.
virt-xml-validate Command Examples
1. Validate an XML file against a specific schema:
# virt-xml-validate path/to/file.xml schema
2. Validate the domain XML against the domain schema:
# virt-xml-validate path/to/domain.xml domain
Summary
The virt-xml-validate tool is part of the libvirt-utils package and is available on most Linux distributions. It can be installed using package managers such as apt, yum, or pacman. The virt-xml-validate tool is a powerful tool for validating and generating libvirt XML files, and can help ensure that virtualization resources are defined and configured correctly.