#!/bin/sh
# File	: cdot_rpt_volume-snap.sh
# By	: Maarten.deBoer@atos.net, 190412, 211116, 230213
# Subject	: Script to report information from cDOT filers. 
#		  Volume & Snap usages
#(0.2),230215,MdB	: Added DISCLAIMER
PGM="`basename $0|cut -d\. -f1`"
VER="0.2"
TMP="/tmp/${PGM}.$$"
LOG="${HOME}/log/${PGM}.log"
SSH="/usr/bin/ssh -n"
HOSTNAME="`hostname|cut -d\. -f1`"
MAIL=""
MAILTO="maarten.deboer@atos.net"
DATE="`date +%Y-%m-%d`"
CSV="NL-FSOD_Volume-Snap-report_${DATE}.csv"
CFILTER="[?]*"
SFILTER="[?]*"
VFILTER="vol"
CLUSTERS="${HOME}/etc/clusters"
RCFILE="${HOME}/etc/${PGM}.rc"
DISCLAIMER="${HOME}/etc/${PGM}.disclaimer"


USAGE()
{
  echo "Usage: ${PGM} [options]"
  echo "  Version: ${VER}"
  echo "  options          :"
  echo "    -c | --cluster : Clusters filter (${CFILTER})"
  echo "    -s | --svm     : Svm filter (${SFILTER})"
  echo "    -v | --vol     : Volume filter (${VFILTER})"
  echo "    -h | --help    : this help"
  echo "    -m | --mail    : do send Mail"
  echo "    --mailto       : change MAILTO address & do send mail (${MAILTO})"
  echo "    -V             : Version"
  echo "    -x             : set -x"
}
if [ -f ${RCFILE} ]; then
  echo "  RCFILE (${RCFILE}) found. Using it "|tee -a ${LOG}
  . ${RCFILE}
fi  # RCFILE
# Check options
while [ ${#} -gt 0 ]
  do
  case ${1} in
    -c | --cluster) CFILTER=${2}; shift ;;
    -s | --svm) SFILTER=${2}; shift ;;
    -v | --vol) VFILTER=${2}; shift ;;
    -m | --mail) MAIL=1 ;;
    -h | --help) USAGE; exit 1 ;;
    --mailto) MAILTO=${2}; MAIL=1; shift ;;
    -V) echo "${PGM}: v${VER}"; exit 3 ;;
    -x)  set -x ;;
    *)  echo "Option ${1} not known."; USAGE; exit 1 ;;
  esac
    shift
done

SSHCMD()
# 1: Filername 2:Command-string
# When issue with connection to cluster, try the nodes (-01 & -02)
# "There are no entries matching your query." => EC=255
# "no connection" is also EC=255
{
  TMPERR="/tmp/${PGM}.$$.err"
  touch ${TMPERR}
  /usr/bin/ssh -n ${1} "${2}" 2> ${TMPERR}
  EC=${?}
  # Check if "ssh: connect to host 10.192.109.202 port 22: Connection refused" If so (EC2=0), the 2nd
  grep 'Connection refused' ${TMPERR}
  EC2=${?}
  if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
    sleep 1
    /usr/bin/ssh -n ${1}-01 "${2}" 2> ${TMPERR}
    EC=${?}
    grep 'Connection refused' ${TMPERR}
    EC2=${?}
    if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
      sleep 1
      /usr/bin/ssh -n ${1}-02 "${2}" 2> ${TMPERR}
      EC=${?}
      grep 'Connection refused' ${TMPERR}
      EC2=${?}
      if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
        sleep 1
        /usr/bin/ssh -n ${1}-05 "${2}" 2> ${TMPERR}
        EC=${?}
        grep 'Connection refused' ${TMPERR}
        EC2=${?}
        if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
          sleep 1
          /usr/bin/ssh -n ${1}-06 "${2}" 2> ${TMPERR}
          EC=${?}
          grep 'Connection refused' ${TMPERR}
          EC2=${?}
          if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
            sleep 1
            /usr/bin/ssh -n ${1}-07 "${2}" 2> ${TMPERR}
            EC=${?}
            grep 'Connection refused' ${TMPERR}
            EC2=${?}
            if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
              sleep 1
              /usr/bin/ssh -n ${1}-08 "${2}" 2> ${TMPERR}
              EC=${?}
              grep 'Connection refused' ${TMPERR}
              EC2=${?}
              if [ ${EC} -ne 0 ] && [ ${EC2} -eq 0 ]; then
                echo  "`date` ${PGM} ERROR with communication to ${1}. Connection to -01 - -06 failed too."|tee -a ${LOG} 
              fi  # EC=0 & EC2=0
            fi  # -06
          fi  # -05
        fi  # -04
      fi  # -03
    fi  # -02
  fi  # -01
  rm ${TMPERR}
}


CSV="NL-FSOD-cDOT_Volume-Snap-report_${DATE}.csv"

# MAIN
echo "`date` ${PGM} v${VER} started."|tee -a ${LOG} ${TMP}.mail
echo "" >> ${TMP}.mail
if [ -f ${DISCLAIMER} ]; then
  cat ${DISCLAIMER} >> ${TMP}.mail
fi  # DISCLAIMER
echo "" >> ${TMP}.mail
echo "" >> ${TMP}.mail
echo "" >> ${TMP}.mail
echo "CLUSTERS=${CLUSTERS}"|tee -a ${TMP}.mail
echo "CFILTER=${CFILTER}"|tee -a ${TMP}.mail
echo "SFILTER=${SFILTER}"|tee -a ${TMP}.mail
echo "VFILTER=${VFILTER}"|tee -a ${TMP}.mail
echo "CSV=${CSV}"|tee -a ${TMP}.mail
echo "DISCLAIMER=${DISCLAIMER}" |tee -a ${TMP}.mail
echo "MAIL=${MAIL}"|tee -a ${TMP}.mail
echo "MAILTO=${MAILTO}"|tee -a ${TMP}.mail
sleep 1

touch ${TMP} 

echo "# vserver;volume;total;used;percent-used;snapshot-space-used;snapshot-policy;size-used-by-snapshots;snapshot-count;" > ${TMP}

for CLUSTER in `cat ${CLUSTERS}|grep -v ^#|grep "${CFILTER}"`
do
  echo "# ${CLUSTER};" | tee -a ${TMP}
  SSHCMD ${CLUSTER} "set -units GB -showseparator \";\" ;volume show -field vserver,total,used,size-used-by-snapshots,snapshot-policy,snapshot-count,percent-used,snapshot-space-used"|grep "${SFILTER}"|grep "${VFILTER}"|sort|tee -a ${TMP}

done  # for CLUSTER

if [ ${MAIL} ]; then
  echo "#" >> ${TMP}
  echo "# `date` by ${PGM} v${VER} at ${HOSTNAME}" >> ${TMP}
  cp ${TMP} /tmp/${CSV}
  cat ${TMP}.mail | mailx -a /tmp/${CSV} -s ":${HOSTNAME}: Volume-Snap report from ${DATE} [${PGM} v${VER}]" ${MAILTO}
  echo "  Mailed volume-snap-report to ${MAILTO}"|tee -a ${LOG}
  rm /tmp/${CSV} ${TMP}.mail
fi  #  MAIL

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