invirt-admin

   1 #!/bin/bash
   2
   3 set -e
   4
   5 usage () {
   6     echo "usage:"
   7     echo "invirt-admin create-sysvm {options}"
   8     echo "  required options: --name, --fs-size, --swap-size, --memory,"
   9     echo "    --hostname, --ip, --mac, --arch, --dist, --mirror"
  10     echo
  11     echo "  fs-size, swap-size, memory in MiB"
  12     echo "  fs-size + swap-size will be total disk-image size"
  13     exit 2
  14 }
  15
  16 if [ create-sysvm != "$1" ]; then
  17     usage
  18 fi
  19 shift
  20
  21 vg=xenvg
  22 while [ $# -gt 0 ]; do
  23     case "$1" in
  24         --vg)        vg=$2;        shift 2;;
  25         --name)      name=$2;      shift 2;;
  26         --fs-size)   fs_size=$2;   shift 2;;
  27         --swap-size) swap_size=$2; shift 2;;
  28         --memory)    memory=$2;    shift 2;;
  29         --hostname)  hostname=$2;  shift 2;;
  30         --ip)        ip=$2;        shift 2;;
  31         --mac)       mac=$2;       shift 2;;
  32         --arch)      arch=$2;      shift 2;;
  33         --dist)      dist=$2;      shift 2;;
  34         --mirror)    mirror=$2;    shift 2;;
  35         *)
  36             echo "Unknown option: $1"
  37             echo
  38             usage
  39             ;;
  40     esac
  41 done
  42 if [ -z "$name" ]; then
  43     usage
  44 fi
  45 disk_size=$(( $fs_size + $swap_size ))
  46
  47
  48 lvcreate "$vg" --name "s_${name}_hda" --size "$disk_size"m
  49
  50 # XXX breaks if $name has dashes
  51 TARGET=/dev/mapper/$vg-s_${name}_hda FSSIZE=$fs_size \
  52 ARCH=$arch DIST=$dist MIRROR=$mirror \
  53 HOSTNAME=$hostname IP=$ip \
  54  invirt-create-image
  55
  56 cat >/etc/xen/sysvms/s_$name <<EOF
  57 import os
  58
  59 release     = os.uname()[2]
  60 kernel      = '/boot/vmlinuz-%s' % release
  61 ramdisk     = '/boot/initrd.img-%s' % release
  62 memory      = '$memory'
  63
  64 disk        = ['phy:$vg/s_${name}_hda,hda,w']
  65
  66 name        = 's_$name'
  67
  68 vif         = [ 'ip=$ip,mac=$mac' ]
  69
  70 on_poweroff = 'destroy'
  71 on_reboot   = 'restart'
  72 on_crash    = 'restart'
  73
  74 root = "/dev/hda1 ro"
  75 extra = '2 console=xvc0'
  76 EOF
  77
  78 echo
  79 echo "Configuration written to /etc/xen/sysvms/s_$name."
  80 echo "To boot:"
  81 echo "  xm create sysvms/s_$name"