roles/services/files/mariabackup/bacula-before.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+# https://mariadb.com/kb/en/mariabackup/
+set -e
+
+myDir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "$myDir/config.sh"
+
+todayDir="$(date +%Y-%m-%d)"
+backupName="${todayDir}_$(date +"%H-%M")_full"
+backupFile="$backupDir/$backupName.gz"
+
+if [ -d "$backupDir" ]; then
+	rm -rf "$backupDir/"*
+fi
+
+ulimit -n 8192
+mariabackup \
+	--defaults-extra-file="$myDir/my.cnf" \
+	--backup \
+	--extra-lsndir="$backupDir/$backupName" \
+	--history="$todayDir" \
+	2>> "$logFile" \
+	| gzip \
+	> "$backupFile"
+
+if [ $? != "0" ]; then
+	echo "An error ocurred during backup, please take a look at log file: $logFile"
+	exit 1
+fi
+

roles/services/files/mariabackup/config.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Destination file for backup logs
+logFile=/var/log/vn-mariabackup.log
+
+# Temporary local directory to save backups
+backupDir=/mnt/local-backup
+
+# Directory for backup history
+historyDir=/mnt/backup4mariadb
+
+# Number of days for backup rotation
+cleanDays=90
+
+# Directory for temporal restore data
+restoreDir=/mnt/mysqldata/mysql-restore
+
+# Directory of MySQL data
+dataDir=/mnt/mysqldata/mysql
+

roles/services/files/mariabackup/inc-backup.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+# https://mariadb.com/kb/en/incremental-backup-and-restore-with-mariabackup/
+set -e
+
+myDir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "$myDir/config.sh"
+
+todayDir="$(date +%Y-%m-%d)"
+todayPath="$historyDir/$todayDir"
+
+pattern="$todayPath/${todayDir}_??-??_full.xb.gz.enc"
+files=($pattern)
+backupFile="${files[0]}"
+backupBase=$(basename -- "$backupFile")
+backupName="${backupBase%%.*}"
+
+incrementalName="${todayDir}_$(date +"%H-%M")_incremental"
+incrementalFile="$backupDir/${incrementalName}.xb.gz.enc"
+
+ulimit -n 24098
+mariabackup \
+	--defaults-extra-file="$myDir/my.cnf" \
+	--backup \
+	--incremental-basedir="$backupDir/$backupName" \
+	--extra-lsndir="$backupDir/$incrementalName" \
+	--incremental-history-name="$todayDir" \
+	2>> "$logFile" \
+	| gzip \
+	| openssl enc -aes-256-cbc -pbkdf2 -kfile "$myDir/xbcrypt.key" \
+	> "$incrementalFile"
+
+if [ $? != "0" ]; then
+	echo "An error ocurred during backup, please take a look at log file: $logFile"
+	exit 1
+fi
+
+cp "$incrementalFile" "$todayPath"
+cp -r "$backupDir/$incrementalName" "$todayPath"

roles/services/files/mariabackup/my.cnf

@@ -0,0 +1,7 @@
+[mariabackup]
+host = localhost
+user = {{ user_mariabackup }}
+password = {{ password_user_mariabackup }}
+use-memory = 1G
+parallel = 2
+stream = mbstream

roles/services/files/mariabackup/restore-backup.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+# https://mariadb.com/kb/en/using-encryption-and-compression-tools-with-mariabackup/
+set -e
+
+myDir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "$myDir/config.sh"
+
+backupFile=$1
+
+if [ -z "$backupFile" ]; then
+	echo "Backup file not defined."
+	exit 1
+fi
+
+if [ ! -f "$backupFile" ]; then
+	echo "Backup file does not exist: $backupFile"
+	exit 2
+fi
+
+echo "Restoring MySQL data from backup."
+
+rm -rf "$restoreDir"
+mkdir -p "$restoreDir"
+
+echo "Decompresing backup."
+gzip --decompress --stdout "$backupFile" \
+	| mbstream -x --directory="$restoreDir"
+
+echo "Preparing backup."
+mariabackup \
+	--defaults-extra-file="$myDir/my.cnf" \
+	--prepare \
+	--target-dir="$restoreDir"
+
+echo "Stopping service."
+service mariadb stop
+if pgrep mariadbd; then pkill -9 mariadbd; fi
+
+echo "Restoring data."
+rm -rf "$dataDir"
+mariabackup \
+	--defaults-extra-file="$myDir/my.cnf" \
+	--move-back \
+	--target-dir="$restoreDir" \
+	2>> "$logFile"
+chown -R mysql:mysql "$dataDir"
+
+rm "$dataDir/mysql/slow_log."*
+rm "$dataDir/mysql/general_log."*
+
+echo "Removing restore data."
+rm -r "$restoreDir"
+