libvirt-scripts

This is a collection of scripts I use to manage my libvirt cluster, feel free to use them however you wish, no warranty given or implied. These scripts make some assumptions about your configuration, but you can configure most options in the config.sh file.

Your public SSH keys should be added to the ssh-keys directory, otherwise you won't be able to login to your VMs

Also, I made a post about this on my blog!

create-vm.sh

Defines and starts a VM on the local computer by talking to the libvirt daemon. This script takes a whole bunch of arguments, in this order:

1. VM hostname (w/o domain)
2. VM network domain
3. Number of CPUs
4. RAM in megabytes
5. Hard disk size in gigabytes
6. Path to base image
7. User to create on VM
8. MAC address (See gen-mac-address.sh)

This script will call create-local-config.sh to create an ISO file that will be used by cloud-init on the VM base image for provisioning.

delete-vm.sh

Deletes and undefines a VM.

THIS WILL REMOVE ALL DATA ASSOCIATED WITH THE VM, INCLUDING METADATA AND STORAGE!

create-local-config.sh

Creates a ISO file that can be used by the NoCloud backend datasource for cloud-init. Takes 3 arguments, the VM name (without domain), the VM domain (if you don't have one, just make something up), and the username that will be associated with your SSH key.

gen-mac-address.sh

Generates a semi-random MAC address starting with 52:54:00. Useful if you want to define a bunch of MAC addresses ahead of time, or if you want to define static DHCP leases on your DHCP server.

config.sh

Not an actual script, this exports some variables that will be used for some of the scripts above. Normally you should only need to edit this file for your configuration.