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Vagrant Libvirt Provider

This is a Vagrant plugin that adds a Libvirt provider to Vagrant, allowing Vagrant to control and provision machines via Libvirt toolkit.

Note: Actual version is still a development one. Feedback is welcome and can help a lot :-)

Vagrant-libvirt Documentation is published at https://vagrant-libvirt.github.io/vagrant-libvirt/

QA status

We periodically test basic functionality for vagrant-libvirt on various distributions. In the status badges below, build passing means that latest version of Vagrant + Vagrant-libvirt was installed correctly and vagrant up is working. Click the badge to review the action workflow.

Index

• Installing
  • Latest development version
• Running
• Development
• Contributing

Installing

Installation typically involves a number of distribution package dependencies to ensure that Libvirt is available. Recommend that you follow the installation guide.

Latest development version

If you want to try out the very latest development version you can download the gem package from the GitHub rubygems package repository under the asserts. Unfortunately it's not yet possible to make the rubygem repositories in GitHub public.

To install provide the file directly to the install command:

vagrant plugin install ./vagrant-libvirt-<version>.gem

It is possible to install directly from the GitHub rubygems package repository, however this will embedded your GitHub token directly into the file ~/.vagrant.d/plugins.json:

vagrant plugin install vagrant-libvirt \
  --plugin-source https://${USERNAME}:${GITHUB_TOKEN}@rubygems.pkg.github.com/vagrant-libvirt \
  --plugin-version "0.10.9.pre.62"

Provided this token is a classic token limited to read:packages only, this may be acceptable to you.

Running

Once installed, use vagrant-libvirt through vagrant.

Locate a vagrant box containing the distribution you want to use at Vagrant Cloud and initialize.

vagrant init fedora/32-cloud-base

Then run following command:

vagrant up --provider=libvirt

Vagrant needs to know that we want to use Libvirt and not default VirtualBox. That's why there is --provider=libvirt option specified. Other way to tell Vagrant to use Libvirt provider is to setup environment variable

export VAGRANT_DEFAULT_PROVIDER=libvirt

Afterwards to enter the VM simply use:

vagrant ssh

If you can't find a box that works as you need, have a look at our documentation on creating boxes on how to take existing ones, customize them and repackage.

Development

To work on the vagrant-libvirt plugin, clone this repository out, and use Bundler to get the dependencies:

git clone https://github.com/vagrant-libvirt/vagrant-libvirt.git
cd vagrant-libvirt
bundle config --local with development
bundle config --local path 'vendor/bundle'
bundle install

Once you have the dependencies, verify the unit tests pass with rspec:

bundle exec rspec --fail-fast --color --format documentation

If those pass, you're ready to start developing the plugin.

Additionally if you wish to test against a specific version of vagrant you can control the version using the following before running the tests:

export VAGRANT_VERSION=v2.2.14
bundle update && bundle exec rspec --fail-fast --color --format documentation

To run the acceptance tests which involve bringing up VMs and exercising various functionality aspects run the following (warning, may have issues if distro ruby is newer than supported by vagrant):

bundle exec rspec --fail-fast --color --format documentation --tag acceptance

Note rvm is used by the maintainers to help provide an environment to test against multiple ruby versions that align with the ones used by vagrant for their embedded ruby depending on the release. You can see what version is used by looking at the current unit tests workflow. By default if you have rvm installed and enabled it this project looks to use ruby 3.1.2 and configures a separate gemset, both of which will be switched to each time you enter the project directory. It should be considered sufficient just to get any tests passing with your system ruby, and as long as you ensure that the option to allow maintainers can update your PR, we will fix up any issues with the remaining combinations.

You can test the plugin without installing it into your Vagrant environment by just creating a Vagrantfile in the top level of this directory (it is gitignored) that uses it. You can add the following line to your Vagrantfile while in development to ensure vagrant checks that the plugin is installed:

Vagrant.configure("2") do |config|
  config.vagrant.plugins = "vagrant-libvirt"
end

Or add the following to the top of the file to ensure that any required plugins are installed globally:

REQUIRED_PLUGINS = %w(vagrant-libvirt)
exit unless REQUIRED_PLUGINS.all? do |plugin|
  Vagrant.has_plugin?(plugin) || (
    puts "The #{plugin} plugin is required. Please install it with:"
    puts "$ vagrant plugin install #{plugin}"
    false
  )
end

Now you can use bundler to execute Vagrant:

bundle exec vagrant up --provider=libvirt

IMPORTANT NOTE: bundle is crucial. You need to use bundled Vagrant.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

For future work take a look at open issues.