Initial commit

.gitignore

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+*.log
+.*.cnf
+.idea

_config.sh

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+#!/bin/bash
+log_file=replication.log
+databases=( 'database_one' 'another_database' )

dump.sh

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+#!/bin/bash
+export DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+CONFIG_FILE=$DIR/_config.sh
+[[ ! -r "${CONFIG_FILE}" ]] && { echo "Could not read ${CONFIG_FILE}!"; exit 1; }
+set -a
+. "${CONFIG_FILE}"
+set +a
+
+# Синхронизация баз (удаление, если базы есть, и создание)
+echo "Dump remote databases and pipi to local mariadb" >> $log_file
+mysqldump --defaults-extra-file=./.remote.my.cnf --add-drop-database --databases "${databases[@]}" | mysql --defaults-extra-file=./.my.cnf

example.my.cnf

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+[client]
+user=replicationuser
+password=replicationpassword
+host=localhost

example.remote.my.cnf

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+[client]
+user=replicationuser
+password=replicationpassword
+host=remotehostip

readbinlog.sh

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+#!/bin/bash
+export DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+CONFIG_FILE=$DIR/_config.sh
+[[ ! -r "${CONFIG_FILE}" ]] && { echo "Could not read ${CONFIG_FILE}!"; exit 1; }
+set -a
+. "${CONFIG_FILE}"
+set +a
+
+# Установка локально и удаленно MASTER-параметров
+echo "Get master status from remote server" >> $log_file
+remote_master_status=`mysql --defaults-extra-file=./.remote.my.cnf -e "SHOW MASTER STATUS;" -N`
+
+remote_master_log_file=`echo $remote_master_status | cut -d' ' -f1`
+remote_master_log_pos=`echo $remote_master_status | cut -d' ' -f2`
+
+echo "Apply bin log position to local mariadb db instance" >> $log_file
+
+replication_user=`cat ./.remote.my.cnf | grep user | cut -d'=' -f2`
+replication_password=`cat ./.remote.my.cnf | grep password | cut -d'=' -f2`
+replication_host=`cat ./.remote.my.cnf | grep host | cut -d'=' -f2`
+
+mysql --defaults-extra-file=./.my.cnf -e "CHANGE MASTER TO MASTER_HOST = '$replication_host', MASTER_USER = '$replication_user', MASTER_PASSWORD = '$replication_password', MASTER_LOG_FILE = '$remote_master_log_file', MASTER_LOG_POS = $remote_master_log_pos;"

start-replication.sh

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+#!/bin/bash
+export DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+CONFIG_FILE=$DIR/_config.sh
+[[ ! -r "${CONFIG_FILE}" ]] && { echo "Could not read ${CONFIG_FILE}!"; exit 1; }
+set -a
+. "${CONFIG_FILE}"
+set +a
+
+for i in ${databases[@]}
+do
+    REMOTE_SQL=$REMOTE_SQL' USE '$i'; FLUSH TABLES WITH READ LOCK;'
+done
+
+REMOTE_SQL=$REMOTE_SQL' system ./readbinlog.sh;'
+
+REMOTE_SQL=$REMOTE_SQL' system ./dump.sh;'
+
+for i in ${databases[@]}
+do
+    REMOTE_SQL=$REMOTE_SQL' USE '$i'; UNLOCK TABLES;'
+done
+
+echo "Start execution all commands on remote server" > $log_file
+
+mysql --defaults-extra-file=./.remote.my.cnf -e "$REMOTE_SQL"
+
+mysql --defaults-extra-file=./.my.cnf -e "START SLAVE;"