#!/bin/bash
#title           : aos-npbackup-sync.sh 
#description     : Backup (rsync) AoS.Health instance ProxMox Dump Files to remote Host 
#author		       : Steven Uggowitzer <steven@entuura.org> for eSHIFT.org
#date            : 20220221
#version         : 0.1    
#usage		       : bash aos-npbackup-sync.sh   Script should likely be run from cron job
#notes           : As it is, this script relies on host np-backup.nitc to be defined in
#                  the /etc/hosts file of the server running this script.
#==============================================================================

# See /etc/hosts file for actual IP address being used.
REMOTEUSER=nphl-antimicrobial-resvm
REMOTEHOST=np-backup.nitc

# Use the near-line backups at /aos-backups because the remote server is only 500GB of space.
# an /aos-backups is also limited to this same approximate sizing.
SRCDIR=/aos-backups
DESTDIR=/home/nphl-antimicrobial-resvm


STARTTIME="`date '+%d.%m.%y %H:%M'`"
START=`date +%s`

LOGFILE=/var/log/aos-npbackup-sync.log
touch $LOGFILE

# We copied an rsync binary to the remote site as it was not installed by default by NITC.
EXTRAARGS='--rsync-path=~/bin/rsync'


## ---------
STARTTIME="`date '+%d.%m.%y %H:%M'`"
START=`date +%s`
THISLOGHEAD="______________________________________\n\
|\n\
|  Script:   $0\n\
|  Hostname: `hostname`\n\
|  Started:  $STARTTIME\n"
LOGCONTENT="`head -n 2000 $LOGFILE`"
THISLOG=""
SUMMARY=""


backup () {
	local FSTARTTIME="`date '+%H:%M'`"
	local FSTART=`date +%s`
	printf "$THISLOGHEAD|\n\n\
---------------------------------------\n\
| Summary:\n\
---------------------------------------\n\
$SUMMARY\n\
`date '+%H:%M'`-now: $1 -> $2\n\n\
---------------------------------------\n\
| Details:\
\n---------------------------------------\n\
$THISLOG\n$LOGCONTENT" > $LOGFILE
  THISLOG="$THISLOG\n`date '+%d.%m.%y %H:%M'` | $1 \n->$2\n---------------------------------------\n`\
  rsync -e ssh -av --delete $EXTRAARGS $1 $REMOTEUSER@$REMOTEHOST:$DESTDIR/$2 --stats | \
  sed '0,/^$/d'`\nfinished: `date '+%d.%m.%y %H:%M'` \n---------------------------------------\n\n"
  printf "$THISLOGHEAD\n$THISLOG\n$LOGCONTENT" > $LOGFILE
  local FSECONDS="$((`date +%s`-$FSTART))"
  SUMMARY="$SUMMARY \n$FSTARTTIME-`date '+%H:%M'` (`date -d@$FSECONDS -u +%H:%M:%S`): $1 -> $2"
}


### THIS CALLS THE ACTUAL BACKUP FUNCTION
backup $SRCDIR AoS.Health/

#Finish Script: Runtime-Information and Final-Summary:
SECONDS="$((`date +%s`-$START))"
printf "$THISLOGHEAD\
|  Finished: `date '+%d.%m.%y %H:%M'`\n\
|  Runtime:  `date -d@$SECONDS -u +%H:%M:%S`\n|\n\n\
---------------------------------------\n\
| Summary:\n\
---------------------------------------\n\
$SUMMARY\n\n\
---------------------------------------\n\
| Details:\n\
---------------------------------------\n\
$THISLOG\n\
|______________________________________\n\
$LOGCONTENT" > $LOGFILE