#!/bin/bash
# File	: cdot_chk_volumes.sh
# By	: Maarten.deBoer@atos.net, 141110
# Subject	: Script to check "space-guarantee" and language (C.UTF8)
#(0.2)	: Added USAGE
#(0.3),160711	: Some mod's
#(0.4),160907	: Some mod's; FILTER + PREFIX, header
#(0.5),161121	: Footers additions
#(0.5b),240118	: At mailx -s "@" => ":"
#(0.6),240118	: Added "snapshot-reserve-available = 0" & Mod [options]
#(0.7),240118	: Added min-snapsh-count
PGM="`basename $0|cut -d\. -f1`"
VER="0.7"
TMP="/tmp/${PGM}.$$"
LOG="${HOME}/log/${PGM}.log"
SSH="/usr/bin/ssh -n"
HOSTNAME="`hostname|cut -d\. -f1`"
MAILTO="maarten.deboer@atos.net"
DATE="`date +%Y-%m-%d`"
#CSV="FSOD_thick_volumes.csv"
CSV="/tmp/${PGM}.csv"
EXCLUDES="${HOME}/etc/${PGM}.excludes"
MAIL=""
CFILTER="[?]*"
SFILTER="[?]*"
VFILTER="[?]*"
PREFIX="nlnaf"
MIN_SNAPSH_CNT=""

CLUSTERS="${HOME}/etc/clusters"

# MAIN

USAGE()
{
  echo "Usage: $PGM [options] "
  echo "  Version: ${VER}"
  echo "  options     :"
  echo "    -e|--etc  : Etc/cluster-file (${CLUSTERS})"
  echo "    -c        : Clustername filter (${CFILTER})"
  echo "    -h        : this help"
  echo "    -m|--mail : send Mail"
  echo "    --min     : MINimun snapshot count (for check) (${MIN_SNAPSH_CNT}) "
  echo "    -s        : Svm (vserver) filter (${SFILTER})"
  echo "    -v        : Volume filter (${VFILTER})"
  echo "    -V        : Version"
  echo "    -x        : set -x"
  echo "    --mailto  : change MAILTO address & do send mail (${MAILTO})"
}

# Check options
while [ $# -gt 0 ]
  do
  case ${1} in
    -e | --etc) CLUSTERS=${2}; shift ;;
    -m | --mail) MAIL=1 ;;
    --mailto) MAILTO=$2; MAIL=1; shift ;;
    --min) MIN_SNAPSH_CNT=$2; shift ;;
    -h | --help) USAGE; exit 1 ;;
    -c) CFILTER=${2}; shift ;;
    -s) SFILTER=${2}; shift ;;
    -v) VFILTER=${2}; shift ;;
    -V) echo "${PGM}: v${VER}"; exit 3 ;;
    -x)  set -x ;;
    *)  echo "Option ${1} not known."; USAGE; exit 1 ;;
  esac
    shift
done

echo "# Cluster;Vserver;Volume;Space Guarantee Style;Volume Size [GB];Used Size [GB];Volume Size Used by Snapshot [GB];Number of Snapshot Copies;Space Reserved for Snapshot [%];" > ${TMP}
#          echo "${CLUSTER};${VSERVER};${VOLUME};${SPACE_G};${SIZE};${USED};${USED_BY_SNAPSH};${SNAPSH_CNT};${PERC_SNAPSH_SPACE};"|tee -a ${TMP}
echo "`date` ${PGM} v${VER} started."|tee -a ${LOG}
echo "  CLUSTERS=${CLUSTERS}"|tee -a ${TMP}.mail
echo "  CSV=${CSV}"|tee -a ${TMP}.mail
echo "  EXCLUDES=${EXCLUDES}"|tee -a ${TMP}.mail
echo "  MAIL=${MAIL}"|tee -a ${TMP}.mail
echo "  MAILTO=${MAILTO}"|tee -a ${TMP}.mail
echo "  PREFIX=${PREFIX}"|tee -a ${TMP}.mail
echo "  CFILTER=${CFILTER}"|tee -a ${TMP}.mail
echo "  SFILTER=${SFILTER}"|tee -a ${TMP}.mail
echo "  VFILTER=${VFILTER}"|tee -a ${TMP}.mail
echo "  MIN_SNAPSH_CNT=${MIN_SNAPSH_CNT}"|tee -a ${TMP}.mail
sleep 1


cat ${CLUSTERS}|grep -v ^#|grep "${CFILTER}"|while read CLUSTER
do
  echo "  CLUSTER=${CLUSTER}"
# option -field selects the items to be shown. NOT the order. That is FIXED
  ${SSH} ${CLUSTER} "vserver show -operational-state running -field vserver"|grep "${PREFIX}"|grep "${SFILTER}"|while read VSERVER REST
  do
    echo "    VSERVER=${VSERVER}|"
    ${SSH} ${CLUSTER} "set -units GB -showseparator \";\" ; volume show -vserver ${VSERVER} -field volume,space-guarantee,language,used,size,percent-used,snapshot-reserve-available,size-used-by-snapshots,snapshot-count,percent-snapshot-space"|grep "${VSERVER}"|grep "${VFILTER}"|grep -vf ${EXCLUDES}| while read LINE
# Incl EXCLUDES
    do
#      echo "LINE=${LINE}"
# volume
      VOLUME=`echo ${LINE}|awk -F\; '{print $2}'`
# size
      SIZE=`echo ${LINE}|awk -F\; '{print $3}'|sed 's/GB//g'`
# used 
      USED=`echo ${LINE}|awk -F\; '{print $4}'|sed 's/GB//g'`
# space-guarantee
      SPACE_G=`echo ${LINE}|awk -F\; '{print $6}'`
# percent-snapshot-space
# Space Reserved for Snapshot
      PERC_SNAPSH_SPACE=`echo ${LINE}|awk -F\; '{print $7}'|sed 's/\%//g'`
# size-used-by-snapshots
# Volume Size Used by Snapshot
      USED_BY_SNAPSH=`echo ${LINE}|awk -F\; '{print $9}'|sed 's/GB//g'`
# snapshot-count
# Number of Snapshot Copies in the
      SNAPSH_CNT=`echo ${LINE}|awk -F\; '{print $10}'`
      echo "      VOLUME=${VOLUME} SPACEG=${SPACE_G} PERC_SNAPSH_SPACE=${PERC_SNAPSH_SPACE} USED_BY_SNAPSH=${USED_BY_SNAPSH} SNAPSH_CNT=${SNAPSH_CNT}"

# if space-guarantee is not none
# percent-snapshot-space > 0
# snapshot-count >= min
      if [ "${MIN_SNAPSH_CNT}" = "" ]; then 
        if [ "${SPACE_G}" != "none" ] || [ ${PERC_SNAPSH_SPACE} -ne 0 ] ; then
          echo "${CLUSTER};${VSERVER};${VOLUME};${SPACE_G};${SIZE};${USED};${USED_BY_SNAPSH};${SNAPSH_CNT};${PERC_SNAPSH_SPACE};"|tee -a ${TMP}
        fi  # ${SPACE_G}" != "none"
      else
        if [ "${SPACE_G}" != "none" ] || [ ${PERC_SNAPSH_SPACE} -ne 0 ] || [ ${SNAPSH_CNT} -ge ${MIN_SNAPSH_CNT} ] ; then
          echo "${CLUSTER};${VSERVER};${VOLUME};${SPACE_G};${SIZE};${USED};${USED_BY_SNAPSH};${SNAPSH_CNT};${PERC_SNAPSH_SPACE};"|tee -a ${TMP}
        fi  # 
      fi  # MIN_SNAPSH_CNT}" = ""

    done  # for VOLUMEs
  done  # for VSERVER
done  # for CLUSTER

if [ ${MAIL} ]; then
  cp ${TMP} ${CSV}
  LINES="`cat ${CSV}|grep -v ^#|wc -l`"
  echo "" >> ${TMP}.mail
  echo "" >> ${TMP}.mail
  echo "${LINES} line(s) found with thick volumes (space-guarantee=volume) and/or SnapReserve <> 0. Please check attachement." >> ${TMP}.mail
  cat ${TMP}.mail |mailx -a ${CSV} -s ":${HOSTNAME}: cDOT (thick & snap-reserve) volumes check [${PGM} v${VER}]" ${MAILTO}
  echo "  Mailed to ${MAILTO}"|tee -a ${LOG}
  rm ${CSV}
fi  # MAIL

# Finish
rm ${TMP} ${TMP}.mail
echo "`date` ${PGM} v${VER} finished."|tee -a ${LOG}
exit 0