#!/bin/bash

# database credentials

DATABASEHOST=<host>
DATABASEUSER=<user>
DATABASEPASSWORD=<password>
DATABASESCHEMA=<schema>
DATABASEENV=<env>

# Local directory of mysqldump file
LOCALDIR=<localdir>

# Temporary directory for compressed file
TEMPDIR=<tempdir>

# Remote Directory for backups.
REMOTEDIR=<remote-dir>

# USERname to login as
BACKUPUSER=<backupuser>

# Backup host to login to
BACKUPHOST=<backuphost>

# mysqldump file
MYSQLDUMPFILE="$(date +%Y%m%d)"_bkp_"$DATABASESCHEMA".sql

# compressed file
COMPRESSEDFILE="$(date +%Y%m%d)"_"$DATABASEENV"_"$DATABASESCHEMA".tar.gz

#--- end config


echo $(date +%H:%M)
echo "Creating the MySQL dump"
mysqldump --host="$DATABASEHOST" --user="$DATABASEUSER" --password="$DATABASEPASSWORD" --single-transaction "$DATABASESCHEMA" > "$LOCALDIR"/"$MYSQLDUMPFILE"

#echo "Generating md5sum"
md5sum "$LOCALDIR"/* > "$LOCALDIR"/checklist.chk

#echo "Compressing the dump and checklist"
tar -cvzf "$TEMPDIR"/$(date +%Y%m%d)"_"$DATABASEENV"_"$DATABASESCHEMA".tar.gz" "$LOCALDIR"/*

#echo "Sending the compressed file to storage location"
scp "$TEMPDIR"/"$COMPRESSEDFILE" "$BACKUPHOST":"$REMOTEDIR"

echo "Removing generated files"
rm "$LOCALDIR"/checklist.chk > /dev/null 2>&1

rm "$LOCALDIR"/"$MYSQLDUMPFILE" > /dev/null 2>&1

rm "$TEMPDIR"/"$COMPRESSEDFILE" > /dev/null 2>&1

echo $(date +%H:%M)