Back up MongoDB replica set with oplog to S3.

mongobackup.sh

#!/bin/sh

lockfile="/tmp/mongobackup.lock"

if [ -f $lockfile ]; then
  echo "Lock file exists! Mongo backup may still be running!"
  exit 1
fi

AWSKEY="put your key here"
AWSSEC="put your secret here"
S3BUCK="s3 bucket name"

date +"%d.%m.%Y - %H:%M" > $lockfile
mydate=`date +"%Y-%m-%d-%H%M%S"`
file="$mydate-mongodump.tar.bz2"

cd /home/ec2-user/

rm -f "$file" && mongodump --oplog -u mongoadminusername -p mongoadminpass -o mongobackups && tar -jcf "$file" mongobackups && rm -rf mongobackups
/usr/bin/s3put -a "$AWSKEY" -s "$AWSSEC" -p "/home/ec2-user/" -r -b "$S3BUCK" "$file"
rm $file
rm -rf $lockfile