This is required because in current versions of libvirt, it is not
possible to specify a boot order when attaching a device; therefore we
can only parse the entire domain XML after all devices have been created
and then assign boot ordering according to the Vagrantfile
specification. This allows us to specify exact boot order for hd, cdrom
and network.
Vagrant already supports VMs without boxes with Docker.
We leverage this in libvirt as well. The use case for this is to PXE
oot a vagrant VM that is then installed over the network then
installed over the network; a different use case would be to test PXE
booted clients that do not use a hard drive whatsoever.
```ruby
Vagrant.configure("2") do |config|
config.vm.provider :libvirt do |libvirt|
# very useful when having mouse issues when viewing VMs via VNC
libvirt.input :type => "tablet", :bus => "usb"
end
end
```
Useful when configuring Virtualized Switch topologies using Switch VMs like Cumulus
Linux.
vagrant network interface auto_config is disabled in the code. This may be
re-enabled in a future update, once it is better understood how to
auto configure these types of links. All guestOS ports, for now, that are
connected to a tcp tunnel are in a link down state.
TCP tunnels allow guest OSes to exchange STP and LLDP information as
if they are directly connected to each other.
This is not possible with the default virtual switch network mode.
Reference:
https://libvirt.org/formatdomain.html#elementsNICSTCP
Allow control of the volume size to be increased from the box default
virtual_size value so that it is possible to use a box configured with a
minimal initial disk size and create virtual guests with larger disk
sizes.
Warn the user and ignore sizes that are less than the box size, and
inform them that a manual filesystem resize will be needed to take
advantage of the additional available disk space.
fixes: #37
I ran into a trouble, as my box(ubuntu) was *not* installed zlib1g-dev package
by default, so update README.md to hint guys to install this package for
ubuntu/debian system.
Signed-off-by: Yang Wei <w90p710@gmail.com>
