# time docker run --name slave -v /etc/slave.cnf:/etc/mysql/my.cnf -v /var/lib/mysql/slave:/var/lib/mysql -p3307:3306 -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.6.34 6b7fe5da9e8c77529ee634e163add57db5cd15757e88261ce320a502ae01f853 real 0m0.986s user 0m0.026s sys 0m0.018s
#!/bin/bash
MASTER_DIR=/var/lib/mysql/master
SLAVE_DIR=/var/lib/mysql/slave
## First we could rm the existed container
docker rm -f master
docker rm -f slave
## Rm the existed directory
rm -rf $MASTER_DIR
rm -rf $SLAVE_DIR
## Start instance
docker run --name master -v /etc/master.cnf:/etc/mysql/my.cnf -v $MASTER_DIR:/var/lib/mysql --net=host -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.6.34
docker run --name slave -v /etc/slave.cnf:/etc/mysql/my.cnf -v $SLAVE_DIR:/var/lib/mysql --net=host -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.6.34
## Creating a User for Replication
docker stop master slave
docker start master slave
sleep 3
docker exec -it master mysql -S /var/lib/mysql/mysql.sock -e "CREATE USER 'repl'@'127.0.0.1' IDENTIFIED BY 'repl';GRANT REPLICATION SLAVE ON *.* TO 'repl'@'127.0.0.1';"
## Obtaining the Replication Master Binary Log Coordinates
master_status=`docker exec -it master mysql -S /var/lib/mysql/mysql.sock -e "show master statusG"`
master_log_file=`echo "$master_status" | awk 'NR==2{print substr($2,1,length($2)-1)}'`
master_log_pos=`echo "$master_status" | awk 'NR==3{print $2}'`
master_log_file="'""$master_log_file""'"
## Setting Up Replication Slaves
docker exec -it slave mysql -S /var/lib/mysql/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='127.0.0.1',MASTER_PORT=3306,MASTER_USER='repl',MASTER_PASSWORD='repl',MASTER_LOG_FILE=$master_log_file,MASTER_LOG_POS=$master_log_pos;"docker exec -it slave mysql -S /var/lib/mysql/mysql.sock -e "start slave;"
docker exec -it slave mysql -S /var/lib/mysql/mysql.sock -e "show slave statusG"
## Creates shortcuts
grep "alias master" /etc/profile
if [ $? -eq 1 ];then
echo 'alias mysql="docker exec -it master mysql"' >> /etc/profile
echo 'alias master="docker exec -it master mysql -h 127.0.0.1 -P3306"' >> /etc/profile
echo 'alias slave="docker exec -it master mysql -h 127.0.0.1 -P3307"' >> /etc/profile
source /etc/profile
fi
docker stop master slave docker start master slave sleep 3
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