vnc-virt

#!/bin/bash

usage() {
    echo "Usage: virt-vnc <SERVER> <VM_NAME>"
}

USER=itadmin

SERVER=$1
VMNAME=$2

if [[ -z "$SERVER" || -z "$VMNAME" ]]; then
    usage
    exit 1
fi

VNCDISPLAY=`ssh ${USER}@${SERVER} "virsh -c 'qemu:///system' vncdisplay ${VMNAME} 2>/dev/null" | cut -d':' -f2 | tr -s " "`

if [[ "$VNCDISPLAY" == "" ]]; then
    echo "VM $VMNAME does not exist?"
    exit 1
fi

# Figure out a random port to use
FLOOR=20000
PORTNUMBER=0   #initialize
while [ "$PORTNUMBER" -le $FLOOR ]
do
  PORTNUMBER=$RANDOM
done

VNCPORT=$(( 5900 + $VNCDISPLAY ))

echo "Local port is $PORTNUMBER"
echo "VNC Display is $VNCDISPLAY"
echo "VNC Port is $VNCPORT"

SSH=`which ssh`
USSH=vnc_ssh_$$
TSSH=/tmp/$USSH
rm -f $TSSH
ln -s $SSH $TSSH

echo "$TSSH -L ${PORTNUMBER}:localhost:${VNCPORT} ${USER}@${SERVER} -Nf"
$TSSH -L ${PORTNUMBER}:localhost:${VNCPORT} ${USER}@${SERVER} -Nf
rm -f $TSSH

SSHPID=`pgrep $USSH`
echo "SSH PID is $SSHPID"

# I use ssvnc, some of these arguments are not appropriate for stock tightvncviewer
vncviewer -escape Super_L -use64 -nojpeg -x11cursor -notty -sendclipboard localhost:${PORTNUMBER}

kill $SSHPID