Automatically shutdown VirtualBox/Vagrant VM's on system restart or halt (Ubuntu 14.04)

vmboxcontrol

#!/bin/sh

# Author: Ilya Sabelnikov <fruit.dev@gmail.com>
# Version: 1.0.0

### BEGIN INIT INFO
# Provides:          vmboxcontrol
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     
# Default-Stop:      0 1 6
# Short-Description: Start VM shutdown jobs on halt and restart
### END INIT INFO

# update-rc.d vmboxcontrol stop 44 0 1 6 .
set -e

PATH=/bin:/usr/bin:/sbin:/usr/sbin

# Set your user here, which runs VMs on this machine
# (e.g. VM_USER=john)
VM_USER=

. /lib/lsb/init-functions

log() {
    echo $1
    log_progress_msg $1
}

run_command_under() {
    if [ -z "$1" ] || [ -z "$2" ]; then
        log "Invalid usage of run_command_under() func in $0"
        exit 0
    fi
    
    output=$(sudo -H -u $1 bash -c "$2")
}

shutdown_virtualbox_vms() {
    if ! hash VBoxManage 2> /dev/null; then 
        log "VBoxManage not installed"
        return;
    fi;
  
    run_command_under $VM_USER "VBoxManage list runningvms"
    VMS=$(echo $output | awk '{ print $2; }')
  
    if [ -z $VMS ]; then 
        log "All VirtualBoxes are already powered off"
    fi;
  
    for VM in $VMS; do
        log "Stopping VirtualBox VM with UID $VM"
        run_command_under $VM_USER "VBoxManage controlvm $VM acpipowerbutton"
        
        until $(run_command_under $VM_USER "VBoxManage showvminfo --machinereadable $VM | grep -q ^VMState=.poweroff."); do
            echo -n "."
            sleep 1
        done
        echo
    done
}

shutdown_vagrant_vms() {
    if ! hash vagrant 2> /dev/null; then 
        log "Vagrant is not installed"
        return;
    fi;

    run_command_under $VM_USER "vagrant global-status | awk '/running/'"
    VMS=$(echo $output | awk '{ print $1 }')
    
    if [ -z "$VMS" ]; then 
        log "All Vagrant Boxes are already powered off"
    fi;
    
    for VM in $VMS; do
        log "Stopping Vagrant VM with UID $VM"
        run_command_under $VM_USER "vagrant halt $VM"
    done;
}


case "$1" in
    start)
    ;;
  
    stop)
        if [ -z $VM_USER ]; then
            echo "\$VM_USER variable was not provided (set) in file $0"
            exit 1
        fi
        
        log_daemon_msg "Stopping running VM machnes before STOP" "vmboxcontrol"
        shutdown_vagrant_vms
        shutdown_virtualbox_vms
        log_end_msg 0
    ;;

    *)
        echo "Usage: /etc/init.d/vmboxcontrol stop"
        exit 1
    ;;
esac

exit 0