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Backup all MySQL databases into separate files
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| #!/bin/sh | |
| ## backup each mysql db into a different file, rather than one big file | |
| ## as with --all-databases. This will make restores easier. | |
| ## To backup a single database simply add the db name as a parameter (or multiple dbs) | |
| ## Putting the script in /var/backups/mysql seems sensible... on a debian machine that is | |
| ## Create the user and directories | |
| # mkdir -p /var/backups/mysql/databases | |
| # useradd --home-dir /var/backups/mysql --gid backup --no-create-home mysql-backup | |
| ## Remember to make the script executable, and unreadable by others | |
| # chown -R mysql-backup:backup /var/backups/mysql | |
| # chmod u=rwx,g=rx,o= /var/backups/mysql/dump.sh | |
| ## crontab entry - backup every night at 02:00 | |
| # sudo -u mysql-backup crontab -e | |
| # 0 2 * * * /var/backups/mysql/dump.sh | |
| # | |
| # Every Monday at 2AM | |
| # 0 2 * * 1 /root/scripts/backup_mysql.sh | |
| ## Create 'backup' mysql user | |
| # CREATE USER 'backup'@'localhost' IDENTIFIED BY 's3cr3t'; | |
| # GRANT EVENT, LOCK TABLES, PROCESS, REFERENCES, SELECT, SHOW DATABASES, SHOW VIEW, TRIGGER ON *.* TO 'backup'@'localhost' ; | |
| # Changelog: | |
| # Remove duplicate code | |
| # Automatically create output directory | |
| # Gzip backups | |
| # Ignore performance_schema table | |
| USER="root" | |
| PASSWORD="s3cr3t" | |
| OUTPUTDIR="/root/backups_mysql" | |
| MYSQLDUMP="/usr/bin/mysqldump" | |
| MYSQL="/usr/bin/mysql" | |
| TODAY=$(date +%F) | |
| if [ -z "$1" ]; then | |
| databases=`$MYSQL --user=$USER --password=$PASSWORD --batch --skip-column-names -e "SHOW DATABASES;" | grep -v 'mysql\|information_schema\|performance_schema'` | |
| else | |
| databases=${@} | |
| fi | |
| for database in $databases; do | |
| echo $database | |
| mkdir -p "$OUTPUTDIR/${database}" | |
| $MYSQLDUMP \ | |
| --user=$USER --password=$PASSWORD \ | |
| --force \ | |
| --quote-names --dump-date \ | |
| --opt --single-transaction \ | |
| --events --routines --triggers \ | |
| --databases $database \ | |
| --result-file="$OUTPUTDIR/${database}/${database}_${TODAY}.sql" | |
| gzip -9 "$OUTPUTDIR/${database}/${database}_${TODAY}.sql" | |
| done |
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