Automated generation of Xen VMs

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This stuff is still a bit rough at the edges, it will take a bit more effort to put it in an RPM package. So until that time, here's the recipe to configure it manually.

Draw the scripts from the VLeForge CVS repository. They will need some tailoring.

You need the following other stuff:

  • Apache web server
  • Xen DomU installation kernels
  • LVM volume group with plenty of free space
  • plenty of free space in /var/local/xen
  • NFS server

Preparation

Create the directories

/var/local/xen
/var/local/hostkeys

The former will have almost all the stuff we need, the latter will have ssh host keys (possibly also SSL certs+keys)


Apache

You want to serve /var/local/xen, so add

<Directory /var/local/xen>
        Options Indexes FollowSymLinks
        AllowOverride None
</Directory>
Alias /xen /var/local/xen

to your Apache configuration (e.g. /etc/httpd/conf.d/xen.conf)

NFS

To distribute keys to hosts, make the xen and key directories NFS mountable. Add this line to /etc/exports.

/var/local/xen 10.0.0.0/8(ro,async,no_root_squash,insecure)
/var/local/hostkeys 10.0.0.0/8(ro,async,no_root_squash,insecure)