# Xen domain configuration file for scripts.mit.edu virtualized web servers
#
# usage, e.g.:
#   xm create scripts-server machine_name=bees-knees
#   xm create scripts-server machine_name=cats-whiskers
# name is the name of the server (as used in the LV volumes)
# mac5 is the fifth octet of the MAC address: ac:de:48:00:xx:01
# set install=fcX if you want to run a Fedora install, where X
# is the version of Fedora to install

vm_host = 0
vm_cpus = 1
vm_mem  = 2
vm_mac5 = 3
machines = { 'bees-knees'     : ['david-letterman',  2, 6144, 10],
             'cats-whiskers'  : ['david-letterman',  2, 6144, 20],
             'not-backward'   : ['david-letterman',  2, 2048, 30],
             'busy-beaver'    : ['conan-obrien',     1, 3072, 40],
             'pancake-bunny'  : ['conan-obrien',     1, 3072, 50],
             'whole-enchilada': ['conan-obrien',     1, 3072, 60],
             'real-mccoy'     : ['jay-leno',         2, 6144, 70],
           }
vm = machines[machine_name]

mac5 = vm[vm_mac5]

if 'install' in locals():
  # Get these files from a Fedora mirror, from a path like
  # pub/fedora/linux/releases/test/11-Preview/Fedora/x86_64/os/isolinux/
  kernel = "/root/%s-install/vmlinuz" % install
  ramdisk = "/root/%s-install/initrd.img" % install
  extra = "selinux=0"
elif 'type' in locals() and type == 'hvm':
  kernel = "/usr/lib/xen/boot/hvmloader"
  builder = "hvm"
  vnc = 1
  vncpassword = "foobar"
else:
  # Fedora installs GRUB.
  bootloader = "/usr/bin/pygrub"

vcpus = vm[vm_cpus]
if 'memory' not in locals(): memory = vm[vm_mem]
maxmem = 16384
name = machine_name
vg = vm[vm_host]
disk = [i % (vg, name) for i in ['phy:/dev/%s/%s-root,hda,w',
                                 'phy:/dev/%s/%s-swap,hdb,w']]
vif = [i % mac5 for i in ['bridge=eth0, mac=ac:de:48:00:%s:01',
                          'bridge=eth1, mac=ac:de:48:00:%s:02']]

if 'builder' not in locals() or builder != "hvm":
  # https://bugzilla.redhat.com/show_bug.cgi?id=466681
  # pygrub uses cached and eventually outdated grub.conf, kernel and initrd
  file('/proc/sys/vm/drop_caches', 'w').write('1')