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 "  optional options: --netmask, --gateway.  Defaults will be pulled from invirt-getconf"
  12     echo
  13     echo "  fs-size, swap-size, memory in MiB"
  14     echo "  fs-size + swap-size will be total disk-image size"
  15     exit 2
  16 }
  17
  18 if [ create-sysvm != "$1" ]; then
  19     usage
  20 fi
  21 shift
  22
  23 vg=$(invirt-getconf xen.lvm.vg)
  24 while [ $# -gt 0 ]; do
  25     case "$1" in
  26         --vg)        vg=$2;        shift 2;;
  27         --name)      name=$2;      shift 2;;
  28         --fs-size)   fs_size=$2;   shift 2;;
  29         --swap-size) swap_size=$2; shift 2;;
  30         --memory)    memory=$2;    shift 2;;
  31         --hostname)  hostname=$2;  shift 2;;
  32         --ip)        ip=$2;        shift 2;;
  33         --mac)       mac=$2;       shift 2;;
  34         --arch)      arch=$2;      shift 2;;
  35         --dist)      dist=$2;      shift 2;;
  36         --mirror)    mirror=$2;    shift 2;;
  37         --netmask)   netmask=$2;   shift 2;;
  38         --gateway)   gateway=$2;   shift 2;;
  39         *)
  40             echo "Unknown option: $1"
  41             echo
  42             usage
  43             ;;
  44     esac
  45 done
  46 if [ -z "$name" ]; then
  47     usage
  48 fi
  49 disk_size=$(( $fs_size + $swap_size ))
  50
  51
  52 lvcreate "$vg" --name "s_${name}_hda" --size "$disk_size"m
  53
  54 # XXX breaks if $name has dashes
  55 TARGET=/dev/mapper/$vg-s_${name}_hda FSSIZE=$fs_size \
  56 ARCH=$arch DIST=$dist MIRROR=$mirror \
  57 HOSTNAME=$hostname IP=$ip \
  58 NETMASK=$netmask GATEWAY=$gateway \
  59  invirt-create-image
  60
  61 cat >/etc/xen/sysvms/s_$name <<EOF
  62 import os
  63
  64 release     = os.uname()[2]
  65 kernel      = '/boot/vmlinuz-%s' % release
  66 ramdisk     = '/boot/initrd.img-%s' % release
  67 memory      = '$memory'
  68
  69 disk        = ['phy:$vg/s_${name}_hda,hda,w']
  70
  71 name        = 's_$name'
  72
  73 vif         = [ 'ip=$ip,mac=$mac' ]
  74
  75 on_poweroff = 'destroy'
  76 on_reboot   = 'restart'
  77 on_crash    = 'restart'
  78
  79 root = "/dev/hda1 ro"
  80 extra = '2 console=xvc0'
  81 EOF
  82
  83 echo
  84 echo "Configuration written to /etc/xen/sysvms/s_$name."
  85 echo "To boot:"
  86 echo "  xm create sysvms/s_$name"