Automatically Backup MySQL database on linux server

Question

I need a script that automatically makes a backup of a MySql Database. I know there are a lot of posts and scripts out there on this topic already but here is where mine differs

Answer 1

After a brief reading the question and the good answers i would add few more points. Some of them are mentioned already.

The backup process can involve next steps:

1. Create a backup
2. Compress the backup file
3. Encrypt the compressed backup
4. Send the backup to a cloud (DropBox, OneDrive, GoogleDrive, AmazonS3,...)
5. Get a notification about results
6. Setup a schedule to run the backup process periodically
7. Delete the old backup files

To compound a script to cover all the backup steps you need an effort and knowledge.

I would like to share a link to an article (i'm one of the writers) which describes the most used ways to backup MySQL databases with some details:

1. Bash script

   # Backup storage directory  
   backup_folder=/var/backups
   
   # Notification email address 
   recipient_email=
   
   # MySQL user
   user=
   
   # MySQL password
   password=
   
   # Number of days to store the backup 
   keep_day=30 
   
   sqlfile=$backup_folder/all-database-$(date +%d-%m-%Y_%H-%M-%S).sql
   zipfile=$backup_folder/all-database-$(date +%d-%m-%Y_%H-%M-%S).zip 
   
   # Create a backup 
   sudo mysqldump -u $user -p$password --all-databases > $sqlfile 
   
   if [ $? == 0 ]; then
      echo 'Sql dump created' 
   else
      echo 'mysqldump return non-zero code' | mailx -s 'No backup was created!' $recipient_email  
      exit 
   fi 
   
   # Compress backup 
   zip $zipfile $sqlfile 
   
   if [ $? == 0 ]; then
      echo 'The backup was successfully compressed' 
   else
      echo 'Error compressing backup' | mailx -s 'Backup was not created!' $recipient_email 
      exit 
   fi 
   
   rm $sqlfile 
   
   echo $zipfile | mailx -s 'Backup was successfully created' $recipient_email 
   
   # Delete old backups 
   find $backupfolder -mtime +$keep_day -delete
   

2. Automysqlbackup

   sudo apt-get install automysqlbackup
   wget https://github.com/sixhop/AutoMySQLBackup/archive/master.zip
   
   mkdir /opt/automysqlbackup
   mv AutoMySQLBackup-master.zip 
   cd /opt/automysqlbackup
   tar -zxvf AutoMySQLBackup-master.zip
   
   ./install.sh
   
   sudo nano /etc/automysqlbackup/automysqlbackup.conf
   
   CONFIG_configfile="/etc/automysqlbackup/automysqlbackup.conf"
   CONFIG_backup_dir='/var/backup/db'
   CONFIG_mysql_dump_username='root'
   CONFIG_mysql_dump_password='my_password'
   CONFIG_mysql_dump_host='localhost'
   CONFIG_db_names=('my_db')
   CONFIG_db_exclude=('information_schema')
   CONFIG_mail_address='mail@google.com'
   CONFIG_rotation_daily=6
   CONFIG_rotation_weekly=35
   CONFIG_rotation_monthly=150
   
   automysqlbackup /etc/automysqlbackup/automysqlbackup.conf
   

3. Third party tools

Hope it would be helpful!