CREATE A SNAPSHOT AND DELETE OLD SNAPSHOT FROM AWS

#!/bin/bash


########

        # purpose :- To take a backup of MongoDB Collections.
        # Requirement :- Make Sure database.config file is present in /data/Backup/mongodb
        # cat /data/Backup/mongodb/database.config
        #  db1
        #  db2
########

PROGNAME=$(basename $0)
BACKUP_DIR="/data/Backup/mongodb/Dump"
#DATE=$(date +"%F")
DATE=$(date +%Y_%m_%d)
S3_DEL=$(date --date "30 days ago" +%Y_%m_%d)
BOX=$(uname -n)
DATBASE_FILE=$(dirname ${BACKUP_DIR})/database.config
LOGDIR=$(dirname ${BACKUP_DIR})/logs/Dump/
LOGFILE="backup_${DATE}.log"
LOCKFILE="/tmp/${PROGNAME}.lock"
REMOVE_FILE_DAYS=7
MONGODUMP_PATH="/usr/bin/mongodump"
MONGO_HOST="localhost"
MONGO_PORT="27017"
MONGO_USER=""
MONGO_PASSWORD=""
BUCKET="s3://working/mongo-backup/"
LOG_BUCKET="s3://working/mongo-backup/logs/"
#MAILTO="<MAIL-ADDRESS>"

LOCK_FILE ()
{
        if [ "$1" = "create" ]; then
                if [ -f $LOCKFILE ]; then
                        SEND_MAIL "ERROR::" "Unable to create lock may lock file not removed"
                        exit 0
                fi
                touch $LOCKFILE
        fi
        if [ "$1" = "remove" ]; then
                rm -fr $LOCKFILE
        fi
}

SEND_MAIL ()
{
        mail -s "${BOX} :: ${PROGNAME} : $1 $2"   -t $MAILTO < $LOGDIR/$LOGFILE
        LOCK_FILE "remove"
        exit 1
}

LOCK_FILE "create"
echo "Script started at :- $(date)" 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE

####### Backup and log Directory checking and creations

for dir in "${BACKUP_DIR}" "${LOGDIR}"

do
        if [ ! -d "${dir}" ]; then
                mkdir -p ${dir} 1>/dev/null 2>/dev/null
                        if [ $? -ne 0 ]; then
                                SEND_MAIL "ERROR::" "Unable to Create ${dir} Directory :"
                                LOCK_FILE "remove"
                                exit 1
                        fi
        fi
done

####### Collection file  checking

if [ ! -f "${DATBASE_FILE}" ]; then
        SEND_MAIL "ERROR::" " DATABASE Config file is not Present :"
else
        if [ ! -s "${DATBASE_FILE}" ]; then
        SEND_MAIL "ERROR ::" "DATABASE Config file is ZERO byte"
        fi

####### Dump logic started
        for MONGO_DATABASE in $(cat ${DATBASE_FILE})
        do

                ${MONGODUMP_PATH} --db ${MONGO_DATABASE}  --host ${MONGO_HOST} --port ${MONGO_PORT}  --out ${BACKUP_DIR}/${DATE}  1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                        if [ $? -ne 0 ]; then
                                SEND_MAIL "ERROR ::" " Unable to take dump for database ${MONGO_DATABASE}"
                        fi
        done

###### Dump Logic ended

###### Compression Logic started
        tar -zvcf ${BACKUP_DIR}/${DATE}.tgz ${BACKUP_DIR}/${DATE} 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
        if [ $? -ne 0 ]; then
                SEND_MAIL "ERROR ::" " Unable to compress ${BACKUP_DIR}/${MONGO_DATABASE}_${DATE} directory"

        else
                rm -fr ${BACKUP_DIR}/${DATE}
                find ${BACKUP_DIR} -name *.tgz -mtime +${REMOVE_FILE_DAYS} -exec rm {} \; 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                if [ $? -eq 0 ]; then
                        echo "Removed old backup files." 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                fi
                find ${LOGDIR} -name *.log -mtime +${REMOVE_FILE_DAYS} -exec rm {} \; 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                if [ $? -eq 0 ]; then
                        echo "Removed old log files." 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                fi
        fi

######################### Pushing data to S3 bucket

       s3cmd put ${BACKUP_DIR}/${DATE}.tgz ${BUCKET} 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
       if [ $? -ne 0 ];then
       SEND_MAIL "ERROR ::" " Unable to send data to S3 Bucket"
       fi

fi
       s3cmd put $LOGDIR/$LOGFILE ${LOG_BUCKET} 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
       if [ $? -ne 0 ];then
       SEND_MAIL "ERROR ::" " Unable to send logs to S3 Bucket"
       fi

       s3cmd del ${BUCKET}${S3_DEL}.tgz 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
       if [ $? -ne 0 ];then
       SEND_MAIL "ERROR ::" " Unable to  delete data from S3 Bucket"
       fi

 echo "Script Ended at $(date)" 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
 LOCK_FILE "remove"
        if [ $? -eq 0 ]; then
                echo "Removed lock file file." 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                rm -vf ${BACKUP_DIR}/${DATE}.tgz 1>> $LOGDIR/$LOGFILE 2>> $LOGDIR/$LOGFILE
                SEND_MAIL "Success::" "Backup Script executed successfully."
        fi
exit 0
#### END OF LOGIC


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