Backup MySQL to Amazon S3

README.md

Backup MySQL to Amazon S3

This is a simple way to backup your MySQL tables to Amazon S3 for a nightly backup - this is all to be done on your server :-)

Sister Document - Restore MySQL from Amazon S3 - read that next

1 - Install s3cmd

this is for Centos 5.6, see http://s3tools.org/repositories for other systems like ubuntu etc

# Install s3cmd
cd /etc/yum.repos.d/
wget http://s3tools.org/repo/CentOS_5/s3tools.repo
yum install s3cmd
# Setup s3cmd
s3cmd --configure
    # You’ll need to enter your AWS access key and secret key here, everything is optional and can be ignored :-)

2 - Add your script

Upload a copy of s3mysqlbackup.sh (it will need some tweaks for your setup), make it executable and test it

# Add the executable bit
chmod +x s3mysqlbackup.sh
# Run the script to make sure it's all tickety boo
./s3mysqlbackup.sh

3 - Run it every night with CRON

Assuming the backup script is stored in /var/www/s3mysqlbackup.sh we need to add a crontask to run it automatically:

# Edit the crontab
env EDITOR=nano crontab -e
    # Add the following lines:
    # Run the database backup script at 3am
    0 3 * * * bash /var/www/s3mysqlbackup.sh >/dev/null 2>&1

4 - Don't expose the script!

If for some reason you put this script in a public folder (not sure why you would do this), you should add the following to your .htaccess or httpd.conf file to prevent public access to the files:

### Deny public access to shell files
<Files *.sh>
    Order allow,deny
    Deny from all
</Files>

s3mysqlbackup.sh

#!/bin/bash

# Based on https://gist.github.com/2206527

# Be pretty
echo -e " "
echo -e " .  ____  .    ______________________________"
echo -e " |/      \|   |                              |"
echo -e "[| \e[1;31m♥    ♥\e[00m |]  | S3 MySQL Backup Script v.0.1 |"
echo -e " |___==___|  /                © oodavid 2012 |"
echo -e "              |______________________________|"
echo -e " "

# Basic variables
mysqlpass="ROOTPASSWORD"
bucket="s3://bucketname"

# Timestamp (sortable AND readable)
stamp=`date +"%s - %A %d %B %Y @ %H%M"`

# List all the databases
databases=`mysql -u root -p$mysqlpass -e "SHOW DATABASES;" | tr -d "| " | grep -v "\(Database\|information_schema\|performance_schema\|mysql\|test\)"`

# Feedback
echo -e "Dumping to \e[1;32m$bucket/$stamp/\e[00m"

# Loop the databases
for db in $databases; do

  # Define our filenames
  filename="$stamp - $db.sql.gz"
  tmpfile="/tmp/$filename"
  object="$bucket/$stamp/$filename"

  # Feedback
  echo -e "\e[1;34m$db\e[00m"

  # Dump and zip
  echo -e "  creating \e[0;35m$tmpfile\e[00m"
  mysqldump -u root -p$mysqlpass --force --opt --databases "$db" | gzip -c > "$tmpfile"

  # Upload
  echo -e "  uploading..."
  s3cmd put "$tmpfile" "$object"

  # Delete
  rm -f "$tmpfile"

done;

# Jobs a goodun
echo -e "\e[1;32mJobs a goodun\e[00m"

Warning: Using a password on the command line interface can be insecure.

You can fix this with the below hack:

credentialsFile=/mysql-credentials.cnf
echo "[client]" > $credentialsFile
echo "user=$mysqlUser" >> $credentialsFile
echo "password=$mysqlPassword" >> $credentialsFile
echo "host=$mysqlHost" >> $credentialsFile
mysqldump --defaults-extra-file=$credentialsFile --routines --no-data $database