MongoDB-S3-Backup

1. Install S3cmd

sudo apt-get install s3cmd.


2. Configure S3cmd

s3cmd --configure


3. Test S3cmd

s3cmd ls


4. Backup Script

Create a new shell file named as mongo_backup.sh and write the following code in it.

#!/bin/bash
 
#Force file syncronization and lock writes
mongo admin --eval "printjson(db.fsyncLock())"
 
MONGODUMP_PATH="/usr/bin/mongodump"
MONGO_DATABASE="Your_db_name" #replace with your database name
 
TIMESTAMP=`date +%F-%H%M`
S3_BUCKET_NAME="Your_Bucket_Name" #replace with your bucket name on Amazon S3
S3_BUCKET_PATH="mongodb-backups"
 
# Create backup
$MONGODUMP_PATH -d $MONGO_DATABASE
 
# Add timestamp to backup
mv dump mongodb-$HOSTNAME-$TIMESTAMP
tar cf mongodb-$HOSTNAME-$TIMESTAMP.tar mongodb-$HOSTNAME-$TIMESTAMP
 
# Upload to S3
s3cmd put mongodb-$HOSTNAME-$TIMESTAMP.tar s3://$S3_BUCKET_NAME/$S3_BUCKET_PATH/mongodb-$HOSTNAME-$TIMESTAMP.tar
 
#Unlock database writes
mongo admin --eval "printjson(db.fsyncUnlock())"
#Delete local files
rm -rf mongodb-*


5. Verify the script

bash mongo_backup.sh

6. Automatic backup using Cron

We now want to automate this process of taking the backup of MongoDB to S3.

sudo su

crontab -e

Add the line at the bottom of the the cron file.

It will automatically backup at every day 11:00 P.M

* 23 * * * /home/ubuntu/mongo_backup.sh


#Restore Command for mongoDB 

mongorestore /path/<dumpfolder>