# KVM tools

This repository contains scripts for managing
[KVM](https://www.linux-kvm.org/page/Main_Page) hypervisors using
[DRBD](http://drbd.org/) and
[LVM](https://en.wikipedia.org/wiki/Logical_Volume_Manager_%28Linux%29).

It contains the following scripts.

- add-vm: create DRBD volumes and virtual machines.
- vm-migrate: migrate a DRBD based virtual machine
- kvmstats: gives informations about defined virtual machines.

## Installation

Copy the scripts to /usr/local/sbin:

~~~
install -m 0755 add-vm /usr/local/sbin/add-vm
install -m 0755 kvmstats /usr/local/sbin/kvmstats
~~~

Edit the configuration in /etc/evolinux/add-vm.cnf:

~~~
masterKVMIP=192.168.0.X
slaveKVMIP=192.168.0.Y
~~~

Script add-vm assumes you have two LVM Volume Groups named "ssd"
and "hdd".

You can override this by adding a bash(1) array in
/etc/evolinux/add-vm.cnf, eg:

~~~
disks=("VG1" "VG2")
~~~

## Dry-run mode

You can use the dry-run mode by setting the doDryRun variable in
/etc/evolinux/add-vm.cnf::

~~~
doDryRun=true
~~~

> This is specific to add-vm.

## License

This is an [Evolix](https://evolix.com) project and is licensed
under the GPLv3, see the [LICENSE](LICENSE) file for details.