Automatic Oracle Virtualbox VMs startup and shutdown on Linux

• Create /etc/init.d/myvirtualbox executable file with following contents.

#!/bin/bash

# /etc/init.d/myvirtualbox

# Variable Declaration

declare -a HOSTS

HOSTS=( "OEL1" "OEL2" )

ACTION=""

DEBUG=1

USER="oracle"

LOCK_DIR="/var/lock/myvirtualbox"

LOCK_FILE=""

LOG_DIR="/var/log"

LOG_FILE="${LOG_DIR}/myvirtualbox.log"

# Function to log the information to logfile

function logit {

    echo $1

    echo $1 >> ${LOG_FILE}

}

# Function to check existance of lock file

function checklock {

    case $1 in

        1)

            if [ -e ${LOCK_FILE} ]; then

                logit "${LOCK_FILE} already exists, Fail to start Virtualbox host ${HOST}"

                logit "Verify VM status, if it is stopped then manually remove ${LOCK_FILE} to start"

                exit 1

            fi

        ;;

        2)

            if [ ! -e ${LOCK_FILE} ]; then

                logit "${LOCK_FILE} doesnot exists, Fail to stop Virtualbox host ${HOST}"

                logit "Verify VM status, if it is running then manually stop Virtual host ${HOST} with command below"

                logit "su - oracle -c \"VBoxManage controlvm ${HOST} savestate\""

                exit 1

            fi

        ;;

        *)

        ;;

    esac

}

# checking lock dir exists

if [ ! -e ${LOCK_DIR} ]; then

    [ $DEBUG -eq "1" ] && logit "Lock dir does not exists, Creating ${LOCK_DIR}"

    mkdir -p ${LOCK_DIR}

fi

# Starting, Stopping or resetting on basic of argument

case $1 in 

    start)

        logit "Starting myvirtualbox VMS"

        for HOST in "${HOSTS[@]}"

        do

            LOCK_FILE="${LOCK_DIR}/${HOST}"

            checklock 1

            CMD="VBoxManage startvm ${HOST} --type=headless"

            [ $DEBUG -eq 1 ] && echo $CMD

            su - ${USER} -c "$CMD" | tee -a ${LOG_FILE}

            [ $? -eq "0" ] && touch ${LOCK_FILE} 

            [ $? -eq "0" ] && logit "Virtualbox host ${HOST} started successfully"

        done

    ;;

    stop)

        logit "Stopping myvirtualbox VMS"

        for HOST in "${HOSTS[@]}"

        do

            LOCK_FILE="${LOCK_DIR}/${HOST}"

            checklock 2 

            CMD="VBoxManage controlvm ${HOST} savestate"

            [ $DEBUG -eq 1 ] && echo $CMD

            su - ${USER} -c "$CMD" | tee -a ${LOG_FILE}

            [ $? -eq "0" ] && rm ${LOCK_DIR}/${HOST}

            [ $? -eq "0" ] && logit "Virtualbox host ${HOST} stopped successfully"

        done

    ;;

    restart)

        logit "Restarting myvirtualbox VMS"

        if [ "$#" -eq "2" ]; then

            LOCK_FILE="${LOCK_DIR}/${2}"

            CMD="VBoxManage controlvm ${2} reset"

            [ $DEBUG -eq 1 ] && echo $CMD

            su - oracle -c "$CMD"

        else

        for HOST in "${HOSTS[@]}"

        do

            LOCK_FILE="${LOCK_DIR}/${HOST}"

            CMD="VBoxManage controlvm ${HOST} reset"

            [ $DEBUG -eq 1 ] && echo $CMD

            su - oracle -c "$CMD" | tee -a ${LOG_FILE}

            [ $? -eq "0" ] && logit "Virtualbox host ${HOST} restarted successfully"

        done

        fi

    ;;

    *)

        echo "Usage: $0 {start|stop|restart} [VMname in case of restart]"

        exit 1

esac

• Make the file executable.

chmod 755 /etc/init.d/myvirtualbox

• Create symbolic link of the executable file to run level directories.

ln -s /etc/init.d/myvirtualbox /etc/rc.d/rc2.d/S99myvirtualbox

ln -s /etc/init.d/myvirtualbox /etc/rc.d/rc3.d/S99myvirtualbox

ln -s /etc/init.d/myvirtualbox /etc/rc.d/rc4.d/S99myvirtualbox

ln -s /etc/init.d/myvirtualbox /etc/rc.d/rc5.d/S99myvirtualbox

ln -s /etc/init.d/myvirtualbox /etc/rc.d/rc0.d/K01myvirtualbox

ln -s /etc/init.d/myvirtualbox /etc/rc.d/rc6.d/K01myvirtualbox