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Add support for VMs with no box

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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.
This commit is contained in:
Gerben Meijer
2015-08-10 17:10:23 +02:00
parent 262e8eed59
commit bbbd804f28
6 changed files with 133 additions and 79 deletions
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21
README.md
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@@ -22,6 +22,7 @@ welcome and can help a lot :-)
* Snapshots via [sahara](https://github.com/jedi4ever/sahara).
* Package caching via [vagrant-cachier](http://fgrehm.viewdocs.io/vagrant-cachier/).
* Use boxes from other Vagrant providers via [vagrant-mutate](https://github.com/sciurus/vagrant-mutate).
* Support VMs with no box for PXE boot purposes
## Future work
@@ -425,6 +426,26 @@ Vagrant.configure("2") do |config|
end
```
## No box and PXE boot
There is support for PXE booting VMs with no disks as well as PXE booting VMs with blank disks. There are some limitations:
* No provisioning scripts are ran
* No network configuration is being applied to the VM
* No SSH connection can be made
* ```vagrant halt``` will only work cleanly if the VM handles ACPI shutdown signals
In short, VMs without a box can be created, halted and destroyed but all other functionality cannot be used.
An example for a PXE booted VM with no disks whatsoever:
Vagrant.configure("2") do |config|
config.vm.define :pxeclient do |pxeclient|
pxeclient.vm.provider :libvirt do |domain|
domain.boot 'network'
end
end
## SSH Access To VM
vagrant-libvirt supports vagrant's [standard ssh settings](https://docs.vagrantup.com/v2/vagrantfile/ssh_settings.html).