Default OS supplied configuration possible?

[Darragh Bailey]

Hi,

As a maintainer of vagrant-libvirt, I have received a request to enable picking up some OS specific configuration for the plugin.

https://github.com/vagrant-libvirt/vagrant-libvirt/pull/969 and https://github.com/vagrant-libvirt/vagrant-libvirt/pull/997

Fedora bugzilla triggering these requests https://bugzilla.redhat.com/show_bug.cgi?id=1697773#c3

While I could just go ahead and merge the latter PR, it strikes me that rather than adding individual environment variables to each plugin in the vagrant eco-sphere each time a distro wishes to provide some default configuration seems unnecessarily cumbersome, as it requires the distro to ask the plugin maintainers to add support for a new environment variable each time.

I'm aware that vagrant will search each parent directory recursively for any Vagrantfile's, however most distros are unlikely to want to add one to the root as /Vagrantfile. Not seeing any configuration being loadable from under /etc/vagrant/ or some similar path to be preloaded to the user Vagrantfile?

Would it be useful to have some way for distros to provide a default global configuration file via an environment variable? So if VAGRANT_GLOBAL_VAGRANTFILE is set vagrant would also load that early on to allow distributions to provide some default configuration settings for any plugin that is interfacing with local system resources.

Regards,

Darragh