Par Romain Tiennot le vendredi 21 octobre 2011, 08:50 - VMware
J’ai conçu un script permettant d’effectuer des snapshots en se basant sur un fichier nommé « listSnapshot » ou il est indiqué les noms des machines virtuelles. De plus, il créé un fichier de log qui sera automatiquement envoyé par email. On peut y voir l’état des machines virtuelles, l’ID des machines virtuelles et si le snapshot s’est fait correctement.
Dans mon cas, le script va :
Lire le fichier texte nommé listSnapshot
Indiquer les l'ID des machines à sauvegarder dans un répertoire "vms_list" dans "/tmp"
L'etat de la machines virtuelles
Créer un fichier de log
Envoi le fichier de log par email
Dans un premier temps, il faut transferer gràce à WinSCP le fichier "snapshot.sh" dans le répertoire :"/vmfs/volumes/<datastore1>/" puis le rendre exécutable en SSH : (pour activer le SSH, vous pouvez consulter mon article))
chmod +x snapshot.sh
Ensuite, il faut créer le fichier "listSnapshot" avec la commande :
vi listSnapshot
Indiquer le nom des machinves virtuelles sous la forme suivante :
VM01
VM02
VM03
Sauvegarder et quitter gràce à ":wq".
Pour effectuer la sauvegarde, il faut saisir la commande suivante en SSH :
./sauvegarde.sh
Pour automatiser l’execution des scripts, il existe sous linux « Cron » qui est l’equivalent des taches planifié sous Windows. Sous Esxi, le fichier de configuration se trouve « /var/spool/cron/crontabs/root ».
J’ai rajouté deux lignes à la suite indiquant :
Executer le script « snapshot.sh » en tenant compte du fichier « listSnapshot » du Lundi au Vendredi à 22h01
Pour que le fichier de configuration cron soit pris en compte, il faut redemarrer le service avec les commandes suivante :
Kill $(cat /vaar/run/crond.pid)
Busybox crond
Attention, lors du prochain redemarrage, le fichier de configuration cron sera reinitialisé. Pour eviter de perdre la configuration, j’ai rajouté dans le script de demarrage du serveur quatre ligne qui rajoutera automatiquement les lignes de configuration dans le fichier cron et redemarrera le service :
Par Romain Tiennot le mardi 11 octobre 2011, 09:19 - VMware
Pour eviter de perdre nos machines virtuelles, je vais vous montrer comment sauvegarder les machines virtuelles en se basant sur un fichier texte ou l'on indique les noms des VM.
Pour effectuer ce script, je me suis basé sur celui de ghettoVCB disponible sur le site VMware.
Dans mon cas, le script va :
Lire le fichier texte nommé listSauvegarde
Indiquer les l'ID des machines à sauvegarder dans un répertoire "vms_list" dans "/tmp"
Avec l'ID il va supprimer l'ensemble des snapshots (obligatoire pour sauvegarder les VM)
Créer un fichier de log
Envoi le fichier de log par email
Création d'une arborescence claire pour la sauvegarde
Dans un premier temps, il faut transferer gràce à WinSCP le fichier "sauvegarde.sh" dans le répertoire :"/vmfs/volumes/<datastore1>/" puis le rendre exécutable en SSH : (pour activer le SSH, vous pouvez consulter mon article))
chmod +x sauvegarde.sh
Ensuite, il faut créer le fichier "listSauvegarde" avec la commande :
vi listSauvegarde
Indiquer le nom des machinves virtuelles sous la forme suivante :
VM01
VM02
VM03
Sauvegarder et quitter gràce à ":wq".
Pour effectuer la sauvegarde, il faut saisir la commande suivante en SSH :
./sauvegarde.sh –f listSauvegarde
Pour automatiser l’execution des scripts, il existe sous linux « Cron » qui est l’equivalent des taches planifié sous Windows. Sous Esxi, le fichier de configuration se trouve « /var/spool/cron/crontabs/root ».
J’ai rajouté deux lignes à la suite indiquant :
Executer le script « sauvegarde.sh » en tenant compte du fichier « listeSauvegarde » le Vendredi à 22h01
Pour que le fichier de configuration cron soit pris en compte, il faut redemarrer le service avec les commandes suivante :
Kill $(cat /vaar/run/crond.pid)
Busybox crond
Attention, lors du prochain redemarrage, le fichier de configuration cron sera reinitialisé. Pour eviter de perdre la configuration, j’ai rajouté dans le script de demarrage du serveur quatre ligne qui rajoutera automatiquement les lignes de configuration dans le fichier cron et redemarrera le service :
Voici le script commenté : (Champ à modifier jusqu'a la ligne 125)
export VMWARE_CMD=/bin/vim-cmd
while read linedo
echo "VM_NAME: $line"
# get VM_ID
${VMWARE_CMD} vmsvc/getallvms | sed 's/[[:blank:]]{3,}/ /g' | awk -F' ' '{}' | sed 's/] /]";"/g' | sed '1,1d'
export VM_ID=`grep -E ""${line}"" /tmp/vms_list | awk -F ";"'{print $1}' | sed 's/"//g'`
echo "VM_ID: $VM_ID"
${VMWARE_CMD} vmsvc/snapshot.removeall $VM_ID
echo "--------------------"
done < /vmfs/volumes/4d27644c-244cadc9-7b49-000c297ad13c/listSauvegarde # Chemin du fichier listSauvegarde
##################################################################
# Author: William Lam
# Created Date: 11/17/2008
# http://www.virtuallyghetto.com/
# http://communities.vmware.com/docs/DOC-8760
##################################################################
# directory that all VM backups should go (e.g. /vmfs/volumes/SAN_LUN1/mybackupdir)
VM_BACKUP_VOLUME=/vmfs/volumes/Sauvegarde
# Format output of VMDK backup
# zeroedthick
# 2gbsparse
# thin
# eagerzeroedthick
DISK_BACKUP_FORMAT=thin
# Number of backups for a given VM before deleting
VM_BACKUP_ROTATION_COUNT=1
# Shutdown guestOS prior to running backups and power them back on afterwards
# This feature assumes VMware Tools are installed, else they will not power down andloop forever
# 1=on, 0 =off
POWER_VM_DOWN_BEFORE_BACKUP=0
# enable shutdown code 1=on, 0 = off
ENABLE_HARD_POWER_OFF=0
# if the above flag "ENABLE_HARD_POWER_OFF "issetto 1, then will look at this flag which is the # of iterations
# the script will wait before executing a hard power off, this will be a multiple of 60seconds
# (e.g) = 3, which means this will wait up to 180seconds (3min) before it just powers off the VM
ITER_TO_WAIT_SHUTDOWN=3
# Number of iterations the script will wait before giving up on powering down the VM and ignoring it for backup
# this will be a multiple of 60 (e.g) = 5, which means this will wait up to 300secs (5min) before it gives up
POWER_DOWN_TIMEOUT=5
# enable compression with gzip+tar 1=on, 0=off
ENABLE_COMPRESSION=0
############################
####### NEW PARAMS #########
############################
# Disk adapter type: buslogic, lsilogic or ide
ADAPTER_FORMAT=buslogic
# Include VMs memory when taking snapshot
VM_SNAPSHOT_MEMORY=1
# Quiesce VM when taking snapshot (requires VMware Tools to be installed)
VM_SNAPSHOT_QUIESCE=1
##########################################################
# NON-PERSISTENT NFS-BACKUP ONLY
#
# ENABLE NON PERSISTENT NFS BACKUP 1=on, 0=off
ENABLE_NON_PERSISTENT_NFS=1
# umount NFS datastore after backup is complete 1=yes, 0=no
UNMOUNT_NFS=0
# IP Address of NFS Server
NFS_SERVER="172.16.0.254"
# Path of exported folder residing on NFS Server (e.g. /some/mount/point )
NFS_MOUNT=/ESXI
# Non-persistent NFS datastore display name of choice
NFS_LOCAL_NAME=Sauvegarde
# Name of backup directory for VMs residing on the NFS volume
NFS_VM_BACKUP_DIR=ESXI
############################
######### EMAIL ############
############################
# Email debug 1=yes, 0=no
EMAIL_DEBUG=1
# Email log 1=yes, 0=no
EMAIL_LOG=1
# Email SMTP server
EMAIL_SERVER=172.16.0.253
# Email SMTP server port
EMAIL_SERVER_PORT=25
# Email FROM
EMAIL_FROM=ESXI@tiennot.fr
# Email RCPT
EMAIL_TO=romain@tiennot.fr
########################## DONOT MODIFY PAST THIS LINE ##########################
# RSYNC LINK 1=yes, 0 = no
RSYNC_LINK=0
LOG_LEVEL="info"
VMDK_FILES_TO_BACKUP="all"
# default 15min timeout
SNAPSHOT_TIMEOUT=15
LAST_MODIFIED_DATE=09/28/2010
VER=1
# Directory naming convention for backup rotations (please ensure there are no spaces!)
VM_BACKUP_DIR_NAMING_CONVENTION="$(date +%F_%H-%M-%S)"
printUsage() {
echo "###############################################################################"
echo "#"
echo "# Script de sauvegarde ESXI"
echo "# Author: William Lam"
echo "# Modifier: Romain Tiennot"
echo "# http://romain.tiennot.fr/"
echo "# Created: 19/02/2011"
echo "# Last modified: ${LAST_MODIFIED_DATE} version ${VER}"
echo "#"
echo "###############################################################################"
echo
echo "Usage: $0 -f [VM_BACKUP_UP_LIST] -c [VM_CONFIG_DIR] -l [LOG_FILE] -d [DEBUG_LEVEL] -g [GLOBAL_CONF] -e [VM_EXCLUSION_LIST]"
echo
echo "OPTIONS:"
echo " -a Backup all VMs on host"
echo " -f List of VMs to backup"
echo " -c VM configuration directory for VM backups"
echo " -g Path to global ghettoVCB configuration file"
echo " -l File to output logging"
echo " -d Debug level [info|debug|dryrun] (default: info)"
echo
echo "(e.g.)"
echo -e "\nBackup VMs stored in a list"
echo -e "\t$0 -f vms_to_backup"
echo -e "\nBackup all VMs residing on this host"
echo -e "\t$0 -a"
echo -e "\nBackup all VMs residing on this host except for the VMs in the exclusion list"
echo -e "\t$0 -a -e vm_exclusion_list"
echo -e "\nBackup VMs based on specific configuration located in directory"
echo -e "\t$0 -f vms_to_backup -c vm_backup_configs"
echo -e "\nBackup VMs using global ghettoVCB configuration file"
echo -e "\t$0 -f vms_to_backup -g /global/ghettoVCB.conf"
echo -e "\nOutput will log to /tmp/ghettoVCB.log"
echo -e "\t$0 -f vms_to_backup -l /tmp/ghettoVCB.log"
echo -e "\nDry run (no backup will take place)"
echo -e "\t$0 -f vms_to_backup -d dryrun"
echo
exit 1
}
logger() {
LOG_TYPE=$1
MSG=$2
if [[ "${LOG_LEVEL}" == "debug" ]] && [[ "${LOG_TYPE}" == "debug" ]] || [[ "${LOG_TYPE}" == "info" ]] || [[ "${LOG_TYPE}" == "dryrun" ]]; then
TIME=$(date +%F" "%H:%M:%S)
if [ "${LOG_TO_STDOUT}" -eq 1 ]; then
echo -e "${TIME} -- ${LOG_TYPE}: ${MSG}"else
echo -e "${TIME} -- ${LOG_TYPE}: ${MSG}" >> "${LOG_OUTPUT}"
fi
if [ "${EMAIL_LOG}" -eq 1 ]; then
echo -ne "${TIME} -- ${LOG_TYPE}: ${MSG}\r\n" >> "${EMAIL_LOG_OUTPUT}"
fi
fi
}
sanityCheck() {
NUM_OF_ARGS=$1
if [ "${USE_GLOBAL_CONF}" -eq 1 ]; then
reConfigureGhettoVCBConfiguration "${GLOBAL_CONF}"
fi
#log to stdout orto logfile
if [ -z "${LOG_OUTPUT}" ]; then
LOG_TO_STDOUT=1
REDIRECT=/dev/nullelse
LOG_TO_STDOUT=0
REDIRECT=${LOG_OUTPUT}
echo "Logging output to \"${LOG_OUTPUT}\" ..."
touch "${LOG_OUTPUT}"
fi
if [[ ${NUM_OF_ARGS} -lt 1 ]] || [[ ${NUM_OF_ARGS} -gt 12 ]]; then
logger "info""ERROR: Incorrect number of arguments!"
printUsage
fi
if [[ ! -f "${VM_FILE}" ]] && [[ "${USE_VM_CONF}" -eq 0 ]] && [[ "${BACKUP_ALL_VMS}" -eq 0 ]]; then
logger "info""ERROR: \"${VM_FILE}\" is not valid VM input file!"
printUsage
fi
if [[ ! -f "${VM_EXCLUSION_FILE}" ]] && [[ "${EXCLUDE_SOME_VMS}" -eq 1 ]]; then
logger "info""ERROR: \"${VM_EXCLUSION_FILE}\" is not valid VM exclusion input file!"
printUsage
fi
if [[ ! -d "${CONFIG_DIR}" ]] && [[ "${USE_VM_CONF}" -eq 1 ]]; then
logger "info""ERROR: \"${CONFIG_DIR}\" is not valid directory!"
printUsage
fi
if [[ ! -f "${GLOBAL_CONF}" ]] && [[ "${USE_GLOBAL_CONF}" -eq 1 ]]; then
logger "info""ERROR: \"${GLOBAL_CONF}\" is not valid global configuration file!"
printUsage
fi
if [ -f /usr/bin/vmware-vim-cmd ]; then
VMWARE_CMD=/usr/bin/vmware-vim-cmd
VMKFSTOOLS_CMD=/usr/sbin/vmkfstools
elif [ -f /bin/vim-cmd ]; then
VMWARE_CMD=/bin/vim-cmd
VMKFSTOOLS_CMD=/sbin/vmkfstools
else
logger "info""ERROR: Unable to locate *vimsh*! You're not running ESX(i) 3.5+ or 4.0+!"
echo "ERROR: Unable to locate *vimsh*! You're not running ESX(i) 3.5+ or 4.0+!"exit 1
fi
ESX_VERSION=$(vmware -v | awk '{print $3}')
if [[ "${ESX_VERSION}" == "4.0.0" ]] || [[ "${ESX_VERSION}" == "4.1.0" ]]; then
VER=4
else
ESX_VERSION=$(vmware -v | awk '{print $4}')
if [[ "${ESX_VERSION}" == "3.5.0" ]] || [[ "${ESX_VERSION}" == "3i" ]]; then
VER=3
else
echo "You're not running ESX(i) 3.5+ or 4.0+!"exit 1
fi
fi
if [[ "${EMAIL_LOG}" -eq 1 ]] && [[ -f /usr/bin/nc ]] || [[ -f /bin/nc ]]; thenif [ -f /usr/bin/nc ]; then
NC_BIN=/usr/bin/nc
elif [ -f /bin/nc ]; then
NC_BIN=/bin/nc
fi
echo -ne "HELO $(hostname -s)\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -ne "MAIL FROM: <${EMAIL_FROM}>\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -ne "RCPT TO: <${EMAIL_TO}>\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -ne "DATA\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -ne "From: ${EMAIL_FROM}\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -ne "To: ${EMAIL_TO}\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -ne "Subject: ESXI - $(date)\r\n" >> "${EMAIL_LOG_OUTPUT}"else
EMAIL_LOG=0
fi
if [ ${ENABLE_NON_PERSISTENT_NFS} -eq 1 ]; then
${VMWARE_CMD} hostsvc/summary/fsvolume | awk '{print $1}' | grep "^${NFS_LOCAL_NAME}" > /dev/null 2>&1
if [ ! $? -eq 0 ]; then
#1 = readonly
#0 = readwrite
${VMWARE_CMD} hostsvc/datastore/nas_create "${NFS_LOCAL_NAME}""${NFS_SERVER}""${NFS_MOUNT}" 0
fi
fi
if [ ! "`whoami`" == "root" ]; then
logger "info""This script needs to be executed by \"root\"!"
echo "ERROR: This script needs to be executed by \"root\"!"exit 1
fi
}
startTimer() {
START_TIME=$(date)
S_TIME=$(date +%s)
}
endTimer() {
END_TIME=$(date)
E_TIME=$(date +%s)
DURATION=$(echo $((E_TIME - S_TIME)))
#calculate overall completion time
if [ ${DURATION} -le 60 ]; then
logger "info""Backup Duration: ${DURATION} Seconds"else
logger "info""Backup Duration: $(awk 'BEGIN{ printf "%.2f\n", '${DURATION}'/60}') Minutes"
fi
}
captureDefaultConfigurations() {
DEFAULT_VM_BACKUP_VOLUME="${VM_BACKUP_VOLUME}"
DEFAULT_DISK_BACKUP_FORMAT="${DISK_BACKUP_FORMAT}"
DEFAULT_VM_BACKUP_ROTATION_COUNT="${VM_BACKUP_ROTATION_COUNT}"
DEFAULT_POWER_VM_DOWN_BEFORE_BACKUP="${POWER_VM_DOWN_BEFORE_BACKUP}"
DEFAULT_ENABLE_HARD_POWER_OFF="${ENABLE_HARD_POWER_OFF}"
DEFAULT_ITER_TO_WAIT_SHUTDOWN="${ITER_TO_WAIT_SHUTDOWN}"
DEFAULT_POWER_DOWN_TIMEOUT="${POWER_DOWN_TIMEOUT}"
DEFAULT_SNAPSHOT_TIMEOUT="${SNAPSHOT_TIMEOUT}"
DEFAULT_ENABLE_COMPRESSION="${ENABLE_COMPRESSION}"
DEFAULT_ADAPTER_FORMAT="${ADAPTER_FORMAT}"
DEFAULT_VM_SNAPSHOT_MEMORY="${VM_SNAPSHOT_MEMORY}"
DEFAULT_VM_SNAPSHOT_QUIESCE="${VM_SNAPSHOT_QUIESCE}"
DEFAULT_VMDK_FILES_TO_BACKUP="${VMDK_FILES_TO_BACKUP}"
DEFAULT_EMAIL_LOG="${EMAIL_LOG}"
DEFAULT_EMAIL_DEBUG="${EMAIL_DEBUG}"
}
useDefaultConfigurations() {
VM_BACKUP_VOLUME="${DEFAULT_VM_BACKUP_VOLUME}"
DISK_BACKUP_FORMAT="${DEFAULT_DISK_BACKUP_FORMAT}"
VM_BACKUP_ROTATION_COUNT="${DEFAULT_VM_BACKUP_ROTATION_COUNT}"
POWER_VM_DOWN_BEFORE_BACKUP="${DEFAULT_POWER_VM_DOWN_BEFORE_BACKUP}"
ENABLE_HARD_POWER_OFF="${DEFAULT_ENABLE_HARD_POWER_OFF}"
ITER_TO_WAIT_SHUTDOWN="${DEFAULT_ITER_TO_WAIT_SHUTDOWN}"
POWER_DOWN_TIMEOUT="${DEFAULT_POWER_DOWN_TIMEOUT}"
SNAPSHOT_TIMEOUT="${DEFAULT_SNAPSHOT_TIMEOUT}"
ENABLE_COMPRESSION="${DEFAULT_ENABLE_COMPRESSION}"
ADAPTER_FORMAT="${DEFAULT_ADAPTER_FORMAT}"
VM_SNAPSHOT_MEMORY="${DEFAULT_VM_SNAPSHOT_MEMORY}"
VM_SNAPSHOT_QUIESCE="${DEFAULT_VM_SNAPSHOT_QUIESCE}"
VMDK_FILES_TO_BACKUP="all"
EMAIL_LOG=0
EMAIL_DEBUG=0
}
reConfigureGhettoVCBConfiguration() {
GLOBAL_CONF=$1
if [ -f "${GLOBAL_CONF}" ]; then
. "${GLOBAL_CONF}"else
useDefaultConfigurations
fi
}
reConfigureBackupParam() {
VM=$1
if [ -e "${CONFIG_DIR}/${VM}" ]; then
logger "info""CONFIG - USING CONFIGURATION FILE = ${CONFIG_DIR}/${VM}"
. "${CONFIG_DIR}/${VM}"else
useDefaultConfigurations
fi
}
dumpHostInfo() {
logger "debug""HOST BUILD: $(vmware -v)"
logger "debug""HOSTNAME: $(hostname)\n"
}
findVMDK() {
VMDK_TO_SEARCH_FOR=$1
if [ "${USE_VM_CONF}" -eq 1 ]; then
logger "debug""findVMDK() - Searching for VMDK: \"${VMDK_TO_SEARCH_FOR}\" to backup"
OLD_IFS2="${IFS}"
IFS=","for k in ${VMDK_FILES_TO_BACKUP}
do
VMDK_FILE=$(echo $k | sed -e 's/^[[:blank:]]*//;s/[[:blank:]]*$//')
if [ "${VMDK_FILE}" == "${VMDK_TO_SEARCH_FOR}" ]; then
logger "debug""findVMDK() - Found VMDK! - \"${VMDK_TO_SEARCH_FOR}\" to backup"
isVMDKFound=1
fi
done
IFS="{OLD_IFS2}"
fi
}
getVMDKs() {
#get all VMDKs listed in .vmx file
VMDKS_FOUND=`grep -iE '(scsi|ide)' "${VMX_PATH}" | grep -i fileName | awk -F " " '{print $1}'`
TMP_IFS=${IFS}
IFS=${ORIG_IFS}
#loop through each disk and verify that it's currently present and create array of valid VMDKS
for DISK in ${VMDKS_FOUND};
do
#extract the SCSI ID and use it to check for valid vmdk disk
SCSI_ID=`echo ${DISK%%.*}`
grep -i "${SCSI_ID}.present""${VMX_PATH}" | grep -i "true" > /dev/null 2>&1
#if valid, then we use the vmdk file
if [ $? -eq 0 ]; then
#verify disk isnot independent
grep -i "${SCSI_ID}.mode""${VMX_PATH}" | grep -i "independent" > /dev/null 2>&1
if [ $? -eq 1 ]; then
grep -i "${SCSI_ID}.deviceType""${VMX_PATH}" | grep -i "scsi-hardDisk" > /dev/null 2>&1
#if we find the device typeis of scsi-disk, then proceed
if [ $? -eq 0 ]; then
DISK=`grep -i ${SCSI_ID}.fileName "${VMX_PATH}" | awk -F "\"" '{print $2}'`
VMDKS="${DISK}:${VMDKS}"
else
#if the deviceType is NULL for IDE which it is, thanks for the inconsistency VMware
#we'll do one more level of verification by checking to see if an ext. of .vmdk exists
#since we can not rely on the deviceType showing "ide-hardDisk"
grep -i ${SCSI_ID}.fileName "${VMX_PATH}" | grep -i ".vmdk" > /dev/null 2>&1
if [ $? -eq 0 ]; then
DISK=`grep -i ${SCSI_ID}.fileName "${VMX_PATH}" | awk -F "\""'{print $2}'`
VMDKS="${DISK}:${VMDKS}"
fi
fi
fi
fi
done
IFS=${TMP_IFS}
}
dumpVMConfigurations() {
logger "info""CONFIG - GHETTOVCB_PID = ${GHETTOVCB_PID}"
logger "info""CONFIG - VM_BACKUP_VOLUME = ${VM_BACKUP_VOLUME}"
logger "info""CONFIG - VM_BACKUP_ROTATION_COUNT = ${VM_BACKUP_ROTATION_COUNT}"
logger "info""CONFIG - VM_BACKUP_DIR_NAMING_CONVENTION = ${VM_BACKUP_DIR_NAMING_CONVENTION}"
logger "info""CONFIG - DISK_BACKUP_FORMAT = ${DISK_BACKUP_FORMAT}"
logger "info""CONFIG - ADAPTER_FORMAT = ${ADAPTER_FORMAT}"
logger "info""CONFIG - POWER_VM_DOWN_BEFORE_BACKUP = ${POWER_VM_DOWN_BEFORE_BACKUP}"
logger "info""CONFIG - ENABLE_HARD_POWER_OFF = ${ENABLE_HARD_POWER_OFF}"
logger "info""CONFIG - ITER_TO_WAIT_SHUTDOWN = ${ITER_TO_WAIT_SHUTDOWN}"
logger "info""CONFIG - POWER_DOWN_TIMEOUT = ${POWER_DOWN_TIMEOUT}"
logger "info""CONFIG - SNAPSHOT_TIMEOUT = ${SNAPSHOT_TIMEOUT}"
logger "info""CONFIG - LOG_LEVEL = ${LOG_LEVEL}"if [ -z "${LOG_OUTPUT}" ]; then
logger "info""CONFIG - BACKUP_LOG_OUTPUT = stdout"else
logger "info""CONFIG - BACKUP_LOG_OUTPUT = ${LOG_OUTPUT}"
fi
logger "info""CONFIG - VM_SNAPSHOT_MEMORY = ${VM_SNAPSHOT_MEMORY}"
logger "info""CONFIG - VM_SNAPSHOT_QUIESCE = ${VM_SNAPSHOT_QUIESCE}"
logger "info""CONFIG - VMDK_FILES_TO_BACKUP = ${VMDK_FILES_TO_BACKUP}"
logger "info""CONFIG - EMAIL_LOG = ${EMAIL_LOG}"if [ "${EMAIL_LOG}" -eq 1 ]; then
logger "info""CONFIG - EMAIL_DEBUG = ${EMAIL_DEBUG}"
logger "info""CONFIG - EMAIL_SERVER = ${EMAIL_SERVER}"
logger "info""CONFIG - EMAIL_SERVER_PORT = ${EMAIL_SERVER_PORT}"
logger "info""CONFIG - EMAIL_FROM = ${EMAIL_FROM}"
logger "info""CONFIG - EMAIL_TO = ${EMAIL_TO}"
fi
logger "info""\n"
}
checkVMBackupRotation() {
local BACKUP_DIR_PATH=$1
#default rotation if variable isnot defined
if [ -z ${VM_BACKUP_ROTATION_COUNT} ]; then
VM_BACKUP_ROTATION_COUNT=1
fi
LIST_BACKUPS=$(ls -t "${BACKUP_DIR_PATH}")
BACKUPS_TO_KEEP=$(ls -t "${BACKUP_DIR_PATH}" | head -"${VM_BACKUP_ROTATION_COUNT}")
ORIG_IFS=${IFS}
IFS='
'
for i in ${LIST_BACKUPS};
do
FOUND=0
for j in ${BACKUPS_TO_KEEP};
doif [ $i == $j ]; then
FOUND=1
fi
done
if [ $FOUND -eq 0 ]; then
logger "debug""Removing $BACKUP_DIR_PATH/$i"
rm -rf "$BACKUP_DIR_PATH/$i"
#NFS I/O error handling hack
if [ $? -ne 0 ]; then
NFS_IO_HACK_COUNTER=0
NFS_IO_HACK_STATUS=0
NFS_IO_HACK_FILECHECK="$BACKUP_DIR_PATH/nfs_io.check"while [ "${NFS_IO_HACK_STATUS}" -eq 0 -a "${NFS_IO_HACK_COUNTER}" -lt 60 ];
do
sleep 1
NFS_IO_HACK_COUNTER=$((NFS_IO_HACK_COUNTER+1))
touch "${NFS_IO_HACK_FILECHECK}"if [ $? -eq 0 ]; then
NFS_IO_HACK_STATUS=1
fi
done
rm -rf "${NFS_IO_HACK_FILECHECK}"if [ "${NFS_IO_HACK_STATUS}" -eq 1 ]; then
logger "info""Slept ${NFS_IO_HACK_COUNTER} seconds to work around NFS I/O error"else
logger "info""Slept ${NFS_IO_HACK_COUNTER} seconds but failed work around for NFS I/O error"
fi
fi
fi
done
IFS=${ORIG_IFS}
}
ghettoVCB() {
VM_INPUT=$1
VM_OK=0
VM_FAILED=0
VMDK_FAILED=0
captureDefaultConfigurations
dumpHostInfo
if [ "${USE_GLOBAL_CONF}" -eq 1 ]; then
logger "info""CONFIG - USING GLOBAL GHETTOVCB CONFIGURATION FILE = ${GLOBAL_CONF}"
fi
if [ "${USE_VM_CONF}" -eq 0 ]; then
dumpVMConfigurations
fi
#dump out all virtual machines allowing for spaces now
${VMWARE_CMD} vmsvc/getallvms | sed 's/[[:blank:]]\{3,\}/ /g' | awk -F' ' '{print "\""$1"\";\""$2"\";\""$3"\""}' | sed 's/\] /\]\";\"/g' | sed '1,1d' > /tmp/vms_list
if [ "${BACKUP_ALL_VMS}" -eq 1 ]; then
${VMWARE_CMD} vmsvc/getallvms | sed 's/[[:blank:]]\{3,\}/ /g' | awk -F' ' '{print ""$2""}' | sed '1,1d' | sed '/^$/d' > "${VM_INPUT}"
fi
ORIG_IFS=${IFS}
IFS='
'
for VM_NAME in `cat "${VM_INPUT}" | grep -v "#" | sed '/^$/d' | sed -e 's/^[[:blank:]]*//;s/[[:blank:]]*$//'`;
do
IGNORE_VM=0
if [ "${EXCLUDE_SOME_VMS}" -eq 1 ]; then
grep -E "${VM_NAME}""${VM_EXCLUSION_FILE}" > /dev/null 2>&1
if [ $? -eq 0 ]; then
IGNORE_VM=1
fi
fi
VM_ID=`grep -E "\"${VM_NAME}\"" /tmp/vms_list | awk -F ";"'{print $1}' | sed 's/"//g'`
#ensure default value if one isnot selected or variable isnullif [ -z ${VM_BACKUP_DIR_NAMING_CONVENTION} ]; then
VM_BACKUP_DIR_NAMING_CONVENTION="$(date +%F_%k-%M-%S)"
fi
if [[ "${USE_VM_CONF}" -eq 1 ]] && [[ ! -z ${VM_ID} ]]; then
reConfigureBackupParam "${VM_NAME}"
dumpVMConfigurations
fi
VMFS_VOLUME=`grep -E "\"${VM_NAME}\"" /tmp/vms_list | awk -F ";"'{print $3}' | sed 's/\[//;s/\]//;s/"//g'`
VMX_CONF=`grep -E "\"${VM_NAME}\"" /tmp/vms_list | awk -F ";"'{print $4}' | sed 's/\[//;s/\]//;s/"//g'`
VMX_PATH="/vmfs/volumes/${VMFS_VOLUME}/${VMX_CONF}"
VMX_DIR=`dirname "${VMX_PATH}"`
#ignore VM as it's in the exclusion list
if [ "${IGNORE_VM}" -eq 1 ]; then
logger "debug""Ignoring ${VM_NAME} for backup since its located in exclusion list\n"
#checks to see if we can pull out the VM_ID
elif [ -z ${VM_ID} ]; then
logger "info""ERROR: failed to locate and extract VM_ID for ${VM_NAME}!\n"
VM_FAILED=1
elif [ "${LOG_LEVEL}" == "dryrun" ]; then
logger "dryrun""###############################################"
logger "dryrun""Virtual Machine: $VM_NAME"
logger "dryrun""VM_ID: $VM_ID"
logger "dryrun""VMX_PATH: $VMX_PATH"
logger "dryrun""VMX_DIR: $VMX_DIR"
logger "dryrun""VMX_CONF: $VMX_CONF"
logger "dryrun""VMFS_VOLUME: $VMFS_VOLUME"
logger "dryrun""VMDK(s): "
getVMDKs
OLD_IFS="${IFS}"
IFS=":"for j in ${VMDKS};
do
logger "dryrun""\t${j}"
done
IFS="${OLD_IFS}"
VMDKS=""
logger "dryrun""###############################################\n"
#checks to see if the VM has any snapshots to start with
elif ls "${VMX_DIR}" | grep -q delta > /dev/null 2>&1; then
logger "info""Snapshot found for ${VM_NAME}, backup will not take place\n"
VM_FAILED=1
elif [[ -f "${VMX_PATH}" ]] && [[ ! -z "${VMX_PATH}" ]]; then
#nfs caseand backup to root path of your NFS mount
if [ ${ENABLE_NON_PERSISTENT_NFS} -eq 1 ] ; then
BACKUP_DIR="/vmfs/volumes/${NFS_LOCAL_NAME}/${NFS_VM_BACKUP_DIR}/${VM_NAME}"if [[ -z ${VM_NAME} ]] || [[ -z ${NFS_LOCAL_NAME} ]] || [[ -z ${NFS_VM_BACKUP_DIR} ]]; then
logger "info""ERROR: Variable BACKUP_DIR was not set properly, please ensure all required variables for non-persistent NFS backup option has been defined"exit 1
fi
#non-nfs (SAN,LOCAL)
else
BACKUP_DIR="${VM_BACKUP_VOLUME}/${VM_NAME}"if [[ -z ${VM_BACKUP_VOLUME} ]]; then
logger "info""ERROR: Variable VM_BACKUP_DIR was not defined"exit 1
fi
fi
#initial root VM backup directory
if [ ! -d "${BACKUP_DIR}" ]; then
mkdir -p "${BACKUP_DIR}"if [ ! -d "${BACKUP_DIR}" ]; then
logger "info""Unable to create \"${BACKUP_DIR}\"! - Ensure VM_BACKUP_VOLUME was defined correctly"exit 1
fi
fi
# directory name of the individual Virtual Machine backup followed by naming convention followed by count
VM_BACKUP_DIR="${BACKUP_DIR}/${VM_NAME}-${VM_BACKUP_DIR_NAMING_CONVENTION}"
mkdir -p "${VM_BACKUP_DIR}"
cp "${VMX_PATH}""${VM_BACKUP_DIR}"
#extract all valid VMDK(s) from VM
getVMDKs
ORGINAL_VM_POWER_STATE=$(${VMWARE_CMD} vmsvc/power.getstate ${VM_ID} | tail -1)
CONTINUE_TO_BACKUP=1
#section that will power down a VM prior to taking a snapshot and backup and power it back onif [ ${POWER_VM_DOWN_BEFORE_BACKUP} -eq 1 ]; then
START_ITERATION=0
logger "info""Powering off initiated for ${VM_NAME}, backup will not begin until VM is off..."
${VMWARE_CMD} vmsvc/power.shutdown ${VM_ID} > /dev/null 2>&1
while ${VMWARE_CMD} vmsvc/power.getstate ${VM_ID} | grep -i "Powered on" > /dev/null 2>&1;
do
#enable hard power off code
if [ ${ENABLE_HARD_POWER_OFF} -eq 1 ]; thenif [ ${START_ITERATION} -ge ${ITER_TO_WAIT_SHUTDOWN} ]; then
logger "info""Hard power off occured for ${VM_NAME}, waited for $((ITER_TO_WAIT_SHUTDOWN*60)) seconds"
${VMWARE_CMD} vmsvc/power.off ${VM_ID} > /dev/null 2>&1
#this is needed for ESXi, even the hard power off did not take affect right away
sleep 60
break
fi
fi
logger "info""VM is still on - Iteration: ${START_ITERATION} - sleeping for 60secs (Duration: $((START_ITERATION*60)) seconds)"
sleep 60
#logic tonot backup this VM if unable to shutdown
#after certain timeout period
if [ ${START_ITERATION} -ge ${POWER_DOWN_TIMEOUT} ]; then
logger "info""Unable to power off ${VM_NAME}, waited for $((POWER_DOWN_TIMEOUT*60)) seconds! Ignoring ${VM_NAME} for backup!"
VM_FAILED=1
CONTINUE_TO_BACKUP=0
break
fi
START_ITERATION=$((START_ITERATION + 1))
done
if [ ${CONTINUE_TO_BACKUP} -eq 1 ]; then
logger "info""VM is powerdOff"
fi
fi
if [ ${CONTINUE_TO_BACKUP} -eq 1 ]; then
logger "info""Initiate backup for ${VM_NAME}"
startTimer
SNAP_SUCCESS=1
VM_VMDK_FAILED=0
#powered on VMs only
if [[ ! ${POWER_VM_DOWN_BEFORE_BACKUP} -eq 1 ]] && [[ "${ORGINAL_VM_POWER_STATE}" != "Powered off" ]]; then
SNAPSHOT_NAME="ghettoVCB-snapshot-$(date +%F)"
logger "info""Creating Snapshot \"${SNAPSHOT_NAME}\" for ${VM_NAME}"
${VMWARE_CMD} vmsvc/snapshot.create ${VM_ID} "${SNAPSHOT_NAME}""${SNAPSHOT_NAME}""${VM_SNAPSHOT_MEMORY}""${VM_SNAPSHOT_QUIESCE}" > /dev/null 2>&1
logger "debug""Waiting for snapshot \"${SNAPSHOT_NAME}\" to be created"
logger "debug""Snapshot timeout set to: $((SNAPSHOT_TIMEOUT*60)) seconds"
START_ITERATION=0
while [ $(${VMWARE_CMD} vmsvc/snapshot.get ${VM_ID} | wc -l) -eq 1 ]
doif [ ${START_ITERATION} -ge ${SNAPSHOT_TIMEOUT} ]; then
logger "info""Snapshot timed out, failed to create snapshot: \"${SNAPSHOT_NAME}\" for ${VM_NAME}"
SNAP_SUCCESS=0
break
fi
logger "debug""Waiting for snapshot creation to be completed - Iteration: ${START_ITERATION} - sleeping for 60secs (Duration: $((START_ITERATION*30)) seconds)"
sleep 60
START_ITERATION=$((START_ITERATION + 1))
done
fi
if [ ${SNAP_SUCCESS} -eq 1 ]; then
OLD_IFS="${IFS}"
IFS=":"for j in ${VMDKS};
do
VMDK="${j}"
isVMDKFound=0
findVMDK "${VMDK}"if [[ $isVMDKFound -eq 1 ]] || [[ "${VMDK_FILES_TO_BACKUP}" == "all" ]]; then
#added this section to handle VMDK(s) stored in different datastore than the VM
echo ${VMDK} | grep "^/vmfs/volumes" > /dev/null 2>&1
if [ $? -eq 0 ]; then
SOURCE_VMDK="${VMDK}"
DS_UUID="$(echo ${VMDK#/vmfs/volumes/*})"
DS_UUID="$(echo ${DS_UUID%/*/*})"
VMDK_DISK="$(echo ${VMDK##/*/})"
mkdir -p "${VM_BACKUP_DIR}/${DS_UUID}"
DESTINATION_VMDK="${VM_BACKUP_DIR}/${DS_UUID}/${VMDK_DISK}"else
SOURCE_VMDK="${VMX_DIR}/${VMDK}"
DESTINATION_VMDK="${VM_BACKUP_DIR}/${VMDK}"
fi
#support for vRDM and deny pRDM
grep "vmfsPassthroughRawDeviceMap""${SOURCE_VMDK}" > /dev/null 2>&1
if [ $? -eq 1 ]; then
FORMAT_OPTION="UNKNOWN"if [ "${DISK_BACKUP_FORMAT}" == "zeroedthick" ]; thenif [ "${VER}" == "4" ]; then
FORMAT_OPTION="zeroedthick"else
FORMAT_OPTION=""
fi
elif [ "${DISK_BACKUP_FORMAT}" == "2gbsparse" ]; then
FORMAT_OPTION="2gbsparse"
elif [ "${DISK_BACKUP_FORMAT}" == "thin" ]; then
FORMAT_OPTION="thin"
elif [ "${DISK_BACKUP_FORMAT}" == "eagerzeroedthick" ]; thenif [ "${VER}" == "4" ]; then
FORMAT_OPTION="eagerzeroedthick"else
FORMAT_OPTION=""
fi
fi
if [ "${FORMAT_OPTION}" == "UNKNOWN" ]; then
logger "info""ERROR: wrong DISK_BACKUP_FORMAT \"${DISK_BACKUP_FORMAT}\ specified for ${VM_NAME}"
VM_VMDK_FAILED=1
else
VMDK_OUTPUT=$(mktemp /tmp/ghettovcb.XXXXXX)
tail -f "${VMDK_OUTPUT}" &
TAIL_PID=$!
if [ -z "${FORMAT_OPTION}" ] ; then
logger "debug" "${VMKFSTOOLS_CMD} -i \"${SOURCE_VMDK}\" -a \"${ADAPTER_FORMAT}\" \"${DESTINATION_VMDK}\""
${VMKFSTOOLS_CMD} -i "${SOURCE_VMDK}" -a "${ADAPTER_FORMAT}" "${DESTINATION_VMDK}" > "${VMDK_OUTPUT}" 2>&1
else
logger "debug" "${VMKFSTOOLS_CMD} -i \"${SOURCE_VMDK}\" -a \"${ADAPTER_FORMAT}\" -d \"${FORMAT_OPTION}\" \"${DESTINATION_VMDK}\""
${VMKFSTOOLS_CMD} -i "${SOURCE_VMDK}" -a "${ADAPTER_FORMAT}" -d "${FORMAT_OPTION}" "${DESTINATION_VMDK}" > "${VMDK_OUTPUT}" 2>&1
fi
VMDK_EXIT_CODE=$?
kill "${TAIL_PID}"
cat "${VMDK_OUTPUT}" >> "${REDIRECT}"
echo >> "${REDIRECT}"
echo
rm "${VMDK_OUTPUT}"
if [ "${VMDK_EXIT_CODE}" != 0 ] ; then
logger "info" "ERROR: errorin backing up of \"${SOURCE_VMDK}\"for ${VM_NAME}"
VM_VMDK_FAILED=1
fi
fi
else
logger "info" "WARNING: A physical RDM \"${SOURCE_VMDK}\" was found for ${VM_NAME}, which will not be backed up"
VM_VMDK_FAILED=1
fi
fi
done
IFS="${OLD_IFS}"
fi
#powered on VMs only w/snapshots
if [[ ${SNAP_SUCCESS} -eq 1 ]] && [[ ! ${POWER_VM_DOWN_BEFORE_BACKUP} -eq 1 ]] && [[ "${ORGINAL_VM_POWER_STATE}" == "Powered on" ]] || [[ "${ORGINAL_VM_POWER_STATE}" == "Suspended" ]]; then
${VMWARE_CMD} vmsvc/snapshot.remove ${VM_ID} > /dev/null 2>&1
#do not continue until all snapshots have been committed
logger "info" "Removing snapshot from ${VM_NAME} ..."
while ls "${VMX_DIR}" | grep -q delta;
do
sleep 5
done
fi
if [[ ${POWER_VM_DOWN_BEFORE_BACKUP} -eq 1 ]] && [[ "${ORGINAL_VM_POWER_STATE}" == "Powered on" ]]; then
#power on vm that was powered off prior to backup
logger "info" "Powering back on ${VM_NAME}"
${VMWARE_CMD} vmsvc/power.on ${VM_ID} > /dev/null 2>&1
fi
TMP_IFS=${IFS}
IFS=${ORIG_IFS}
if [ ${ENABLE_COMPRESSION} -eq 1 ]; then
logger "info" "Compressing VM backup \"${BACKUP_DIR}/${VM_NAME}-${VM_BACKUP_DIR_NAMING_CONVENTION}.gz\"..."
if [ ${IS_4I} -eq 1 ]; then
busybox tar -cz -C "${BACKUP_DIR}" "${VM_NAME}-${VM_BACKUP_DIR_NAMING_CONVENTION}" -f "${BACKUP_DIR}/${VM_NAME}-${VM_BACKUP_DIR_NAMING_CONVENTION}.gz"
else
tar -cz -C "${BACKUP_DIR}" "${VM_NAME}-${VM_BACKUP_DIR_NAMING_CONVENTION}" -f "${BACKUP_DIR}/${VM_NAME}-${VM_BACKUP_DIR_NAMING_CONVENTION}.gz"
fi
rm -rf "${VM_BACKUP_DIR}"
checkVMBackupRotation "${BACKUP_DIR}"
else
checkVMBackupRotation "${BACKUP_DIR}"
fi
IFS=${TMP_IFS}
VMDKS=""
endTimer
if [ ${SNAP_SUCCESS} -ne 1 ]; then
logger "info" "ERROR: Unable to backup ${VM_NAME} due to snapshot creation!\n"
VM_FAILED=1
elif [ ${VM_VMDK_FAILED} -ne 0 ]; then
logger "info" "ERROR: Unable to backup ${VM_NAME} due toerrorin VMDK backup!\n"
VMDK_FAILED=1
else
logger "info" "Successfully completed backup for ${VM_NAME}!\n"
VM_OK=1
#experimental
#create symlink for the very last backup to support rsync functionality for additinal replication
if [ "${RSYNC_LINK}" -eq 1 ]; then
SYMLINK_DST=${VM_BACKUP_DIR}
SYMLINK_SRC="$(echo "${SYMLINK_DST%*-*-*-*_*-*-*}")-symlink"
logger "info" "Creating symlink \"${SYMLINK_SRC}\"to \"${SYMLINK_DST}\""
ln -s "${SYMLINK_DST}" "${SYMLINK_SRC}"
fi
fi
else
if [ ${CONTINUE_TO_BACKUP} -eq 0 ]; then
logger "info" "ERROR: Failed to backup ${VM_NAME}!\n"
VM_FAILED=1
else
logger "info" "ERROR: Failed to lookup ${VM_NAME}!\n"
VM_FAILED=1
fi
fi
fi
done
unset IFS
if [[ ${ENABLE_NON_PERSISTENT_NFS} -eq 1 ]] && [[ ${UNMOUNT_NFS} -eq 1 ]] ; then
${VMWARE_CMD} hostsvc/datastore/destroy ${NFS_LOCAL_NAME}
fi
}
getFinalStatus() {
if [[ "${LOG_TYPE}" == "dryrun" ]]; then
FINAL_STATUS="###### Final status: OK, only a dryrun. ######"
EXIT=0
elif [[ $VM_OK == 1 ]] && [[ $VM_FAILED == 0 ]] && [[ $VMDK_FAILED == 0 ]]; then
FINAL_STATUS="###### Final status: All VMs backed up OK! ######"
EXIT=0
elif [[ $VM_OK == 1 ]] && [[ $VM_FAILED == 0 ]] && [[ $VMDK_FAILED == 1 ]]; then
FINAL_STATUS="###### Final status: WARNING: All VMs backed up, but some disk(s) failed! ######"
EXIT=3
elif [[ $VM_OK == 1 ]] && [[ $VM_FAILED == 1 ]] && [[ $VMDK_FAILED == 0 ]]; then
FINAL_STATUS="###### Final status: ERROR: Only some of the VMs backed up! ######"
EXIT=4
elif [[ $VM_OK == 1 ]] && [[ $VM_FAILED == 1 ]] && [[ $VMDK_FAILED == 1 ]]; then
FINAL_STATUS="###### Final status: ERROR: Only some of the VMs backed up, and some disk(s) failed! ######"
EXIT=5
elif [[ $VM_OK == 0 ]] && [[ $VM_FAILED == 1 ]]; then
FINAL_STATUS="###### Final status: ERROR: All VMs failed! ######"
EXIT=6
elif [[ $VM_OK == 0 ]]; then
FINAL_STATUS="###### Final status: ERROR: No VMs backed up! ######"
EXIT=7
fi
logger "info" "$FINAL_STATUS\n"
}
sendMail() {
#close email message
if [ "${EMAIL_LOG}" -eq 1 ]; then
echo -en ".\r\n" >> "${EMAIL_LOG_OUTPUT}"
echo -en "QUIT\r\n" >> "${EMAIL_LOG_OUTPUT}"
"${NC_BIN}" "${EMAIL_SERVER}" "${EMAIL_SERVER_PORT}" < "${EMAIL_LOG_OUTPUT}" > /dev/null 2>&1
if [ $? -eq 1 ]; then
logger "info" "ERROR: Failed to email log outputto ${EMAIL_SERVER}:${EMAIL_SERVER_PORT} to ${EMAIL_TO}\n"
fi
if [ "${EMAIL_DEBUG}" -eq 1 ]; then
logger "info" "Email log output will not be deleted andis stored in ${EMAIL_LOG_OUTPUT}\n"
else
rm -rf "${EMAIL_LOG_OUTPUT}"
fi
fi
}
####################
# #
# Start of Script #
# #
####################
IS_4I=0
if [ ! -f /bin/bash ]; then
IS_4I=1
fi
USE_VM_CONF=0
USE_GLOBAL_CONF=0
BACKUP_ALL_VMS=0
EXCLUDE_SOME_VMS=0
EMAIL_LOG_OUTPUT=/tmp/ghettoVCB-email-$$.log
#read user input
while getopts ":af:c:g:l:d:e:" ARGS; do
case $ARGS in
a)
BACKUP_ALL_VMS=1
VM_FILE="/tmp/backup_all_vms_on-$(hostname)"
touch "${VM_FILE}"
;;
f) VM_FILE="${OPTARG}"
;;
e)
VM_EXCLUSION_FILE="${OPTARG}"
EXCLUDE_SOME_VMS=1
;;
c)
CONFIG_DIR="${OPTARG}"
USE_VM_CONF=1
;;
g)
GLOBAL_CONF="${OPTARG}"
USE_GLOBAL_CONF=1
;;
l)
LOG_OUTPUT="${OPTARG}"
;;
d)
LOG_LEVEL="${OPTARG}"
;;
:)
echo "Option -${OPTARG} requires an argument."
exit 1
;;
*)
printUsage
exit 1
;;
esac
done
#performs a check on the number of commandline arguments + verifies $2 is a valid file
sanityCheck $#
LOCKDIR=/tmp/ghettoVCB.lock
if mkdir "${LOCKDIR}"
then
GHETTOVCB_PID=$$
logger "info" "============================== ESXI LOG START ==============================\n"
logger "debug" "Succesfully acquired lock directory - ${LOCKDIR}\n"
# Remove lockdir when the script finishes, or when it receives a signal
trap 'rm -rf "${LOCKDIR}"' 0 # remove directory when script finishes
trap "exit 2" 1 2 3 13 15 # terminate script when receiving signal
ghettoVCB ${VM_FILE}
getFinalStatus
logger "debug" "Succesfully removed lock directory - ${LOCKDIR}\n"
logger "info" "============================== ESXI LOG END ================================\n"
sendMail
rm -rf "${LOCKDIR}"
exit $EXIT
else
logger "info" "Failed to acquire lock, another instance of script may be running, giving up on ${LOCKDIR}\n"
exit 1
fi