KVM + SPice Windows VM daemon script

dwin10

#!/bin/bash

# • Following packages must be installed :
#   - qemu
#   - samba
#   - spice-vdagent
#   - virt-viewer
# • SPICE driver needed in guest from https://www.spice-space.org/download/windows/spice-guest-tools/spice-guest-tools-0.100.exe
# • For libvirtd to work for user, add user to libvirtd group and reboot
#   >  usermod -a -G libvirtd USER
#
cli_set=false
qemu_monitor=false
launch_server=false
op=NONE
script_name='dwin10'
# Parse args
while [[ $# -gt 0 ]]
do
  key="$1"
  case $key in
    -h|--help)
      echo "Manager for windows 10 virtualization."
      echo "Usage: $script_name [OPTION...] COMMAND"
      echo -e "OPTIONS"
      echo -e "\t -c, --spice-cli     (for command start only) launch spice client"
      echo -e "\t -m, --qemu-monitor  (for command start only) launch qemu monitor"
      echo -e "\nCOMMANDS"
      echo -e "\t start     start the VM"
      echo -e "\t stop      softly stops the VM"
      echo -e "\t status    show info"
      echo -e "\t cli       launch spice client"
      echo -e "\t monitor   launch qemu monitor through telnet"
      exit 0
      ;;
    -c|--spice-cli)
      cli_set=true
      ;;
    -m|--qemu-monitor)
      qemu_monitor=true
      ;;
    start)
      op=START
      break
      ;;
    stop)
      op=STOP
      break
      ;;
    status)
      op=STATUS
      break
      ;;
    cli)
      op=CLI
      break
      ;;
    monitor)
      op=MONITOR
      qemu_monitor=true
      break
      ;;
    *)
      echo "Unknown option or command $key, exiting."
      exit 1
    ;;
  esac
  shift # past argument or value
done

# Vars
installImage=$HOME/ISO/Win10_1607_English_x64.iso
systemImage=$HOME/win10.img
maxMemSize="1G"
sambaSharePath=$HOME/Public
spicePort="5900"
telport="1234"
qemuHost="127.0.0.1"
vmname=WINDOWS10
winTitle="windows10"

# Misc
lockfile=/var/tmp/win10-kvm-daemon

# Options
systemDriveOptions=",if=virtio"
spiceOption="-spice port=$spicePort,disable-ticketing \
-device virtio-serial-pci \
-device virtserialport,chardev=spicechannel0,name=com.redhat.spice.0 \
-chardev spicevmc,id=spicechannel0,name=vdagent"
balloonOption="--balloon virtio"
sambaShareOption="-net user,smb=$sambaSharePath"

options="-m $maxMemSize \
$balloonOption \
-mem-prealloc \
-rtc clock=host,base=localtime \
-enable-kvm \
-drive file=$systemImage,cache=writeback,format=raw,index=0$systemDriveOption \
-cpu host \
-smp 4,sockets=1,cores=2,threads=2 \
-usbdevice tablet \
-vga qxl \
-net nic,model=virtio \
-display none \
-machine type=q35,accel=kvm \
-name $vmname,process=$vmname \
-nographic -monitor telnet:$qemuHost:$telport,server,nowait \
$sambaShareOption \
$spiceOption"

function launchSpiceCLI {
  echo "Launching client..."
  remote-viewer --full-screen --title $winTitle spice://localhost:$spicePort &
}

function launchQemuMonitor {
  echo "Launching monitor..."
  telnet $qemuHost $telport
}

function launchSpiceServer {
  trap 'rm -f "$lockfile"; exit $?' INT TERM EXIT
  qemu-system-x86_64 $options > /dev/null 2>&1
  # clean up after yourself, and release your trap
  rm -f "$lockfile"
  trap - INT TERM EXIT
}

function handleStartOp {
  if ( set -o noclobber; echo "$$" > "$lockfile") 2> /dev/null ; then
    launchSpiceServer &
    sleep 1
  else
    echo "An instance of $vmname is already running, exiting."
    exit 1
  fi
  if [ "$qemu_monitor" = true ] ; then
    launchQemuMonitor
  else
    if [ "$cli_set" = true ] ; then
      launchSpiceCLI
    fi
  fi
}

function handleStopOp {
  echo "Handle stop to be implemented"
  echo "system_powerdown" | telnet $qemuHost $telport
}

function handleStatusOp {
  if [ -f "$lockfile" ] ; then
    echo -e "\tVM : started with PID $(pgrep $vmname)"
  else
    echo -e "\tVM : offline"
  fi
}

case $op in
  START)
    handleStartOp
    ;;
  STOP)
    handleStopOp
    ;;
  STATUS)
    handleStatusOp
    ;;
  CLI)
    launchSpiceCLI
    ;;
  MONITOR)
    launchQemuMonitor
    ;;
  *)
    echo "No operation arg given amongst 'start', 'stop', 'cli', 'monitor' and 'status', exiting."
    exit 1
    ;;
esac