51 lines
1.5 KiB
Bash
Executable File
51 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# Simple script to backup MySQL databases
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# Parent backup directory
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backup_parent_dir="/var/backups/mysql"
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# MySQL settings
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mysql_user="root"
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mysql_password="ROOTPASSWD"
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# Read MySQL password from stdin if empty
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# if [ -z "${mysql_password}" ]; then
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# echo -n "Enter MySQL ${mysql_user} password: "
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# read -s mysql_password
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# echo
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# fi
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# Check MySQL password
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echo exit | mysql --user=${mysql_user} --password=${mysql_password} -B 2>/dev/null
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if [ "$?" -gt 0 ]; then
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echo "MySQL ${mysql_user} password incorrect"
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exit 1
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else
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echo "MySQL ${mysql_user} password correct."
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fi
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# TODO rotate backups
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# Create backup directory and set permissions
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backup_date=`date +%Y_%m_%d_%H_%M`
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backup_dir="${backup_parent_dir}/${backup_date}"
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echo "Backup directory: ${backup_dir}"
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mkdir -p "${backup_dir}"
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chmod 644 "${backup_dir}"
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# Get MySQL databases
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mysql_databases=`echo 'show databases' | mysql --user=${mysql_user} --password=${mysql_password} -B | sed /^Database$/d`
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# Backup and compress each database
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for database in $mysql_databases
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do
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if [ "${database}" == "information_schema" ] || [ "${database}" == "performance_schema" ]; then
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additional_mysqldump_params="--skip-lock-tables --compact --no-autocommit "
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else
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additional_mysqldump_params=""
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fi
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echo "Creating backup of \"${database}\" database"
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mysqldump ${additional_mysqldump_params} --user=${mysql_user} --password=${mysql_password} ${database} | gzip > "${backup_dir}/${database}.sql.gz"
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chmod 644 "${backup_dir}/${database}.sql.gz"
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done
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