Unraid / libvirt bindings

Libvirt bindings for Node.js®.

Example Usage

import libvirt, {
  DomainBuilder,
  domainDescToXml,
  domainDescFromXml,
} from "@unraid/libvirt";

const uri = process.env.LIBVIRT_URI || "qemu:///system";
const hypervisor = new libvirt.Hypervisor({ uri });

(async () => {
  await hypervisor.connectOpen();

  // parse xml template
  const template = await domainDescFromXml("<domain>...</domain>");

  // build new domain description
  const domain = new DomainBuilder()
    .fromTemplate(template)

    .setName("test1")
    .setUUID("148d0864-2354-4c27-b82c-731bdd3f320c")

    .addDisk({
      type: "file",
      device: "disk",
      driver: { name: "qemu", type: "qcow2" },
      source: { file: "/home/leon/test1.img" },
      target: { dev: "vda", bus: "virtio" },
    })

    .addInterface({
      type: "network",
      source: { network: "default" },
      mac: { address: "52:54:00:8e:c6:5f" },
      model: { type: "virtio" },
    })

    .build();

  // define and boot domain
  const xml = domainDescToXml(domain);
  await hypervisor.domainCreateXML(xml);

  // list active domains
  const activeDomains = await hypervisor.connectListAllDomains(
    libvirt.ConnectListAllDomainsFlags.ACTIVE
  );

  // log active domain names
  const activeDomainNames = await Promise.all(
    activeDomains.map((domain) => hypervisor.domainGetName(domain))
  );
  console.log(activeDomainNames);

  await hypervisor.connectClose();
})();

Install

Debian / Ubuntu

sudo apt install build-essential libvirt-dev qemu-system
npm i @unraid/libvirt

MacOS

Install Homebrew and Xcode first if not already installed.

brew install libvirt qemu
npm i @unraid/libvirt

Development

This project uses pnpm as the package manager. Make sure you have it installed:

npm install -g pnpm

Building

pnpm install
pnpm build

Testing

The project uses Vitest for testing. You can run tests using:

# Run tests
pnpm test

# Run tests with coverage
pnpm test:coverage

# Run tests with UI
pnpm test:ui

Examples

The project includes several example scripts that demonstrate different features:

# List all domains
pnpm examples/list

# Start a domain
pnpm examples/start

# Shutdown a domain
pnpm examples/shutdown

# Create a domain using the builder pattern
pnpm examples/builder

Contribute

Any contribution is welcome! To check whether your contribution conforms to our style guide, run the following tasks:

# Install dependencies
pnpm install

# Run linting
pnpm lint

# Run tests
pnpm test

---

MIT License

Copyright (c) 2019 Leon Rinkel [email protected] and vmngr/libvirt contributers

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.