mysql版本:5.6 
master01 :  192.168.19.131 
master02 : 192.168.19.132

#(1)安裝docker和docker-compose

curl -o /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install docker-ce-17.06.0.ce-1.el7.centos.x86_64 -y
systemctl enable docker
systemctl  start docker
cat > /etc/docker/daemon.json <<EOF
{
     "registry-mirrors": ["https://ui5lsypg.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

sudo curl -L https://mirrors.aliyun.com/docker-toolbox/linux/compose/1.21.2/docker-compose-Linux-x86_64 > /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version
 

#（2）準備目錄

mkdir /mysql3307/{data,conf} -pv 
mkdir /temp/docker/compose/ -pv 

#（3）master01 和 master02 的配置文件
註意修改server-id和 auto_increment_offset

#cat /mysql3307/conf/my.cnf 
[mysqld]
#basic
character-set-server=utf8
lower_case_table_names=1
skip-name-resolve
max_connections = 10000
user=mysql
port=3306
datadir=/mysql3307/data
socket=/var/lib/mysql/mysql.sock
pid-file=/var/run/mysql/mysql.pid
log_error=/var/log/mysql/error.log
default_time_zone = ‘+8:00‘
explicit_defaults_for_timestamp=true

#slow log 
slow_query_log = 1
long_query_time = 1

#lock 
innodb_lock_wait_timeout=50
lock_wait_timeout=50
innodb_autoinc_lock_mode=2

#innodb
innodb_file_per_table=ON
innodb_buffer_pool_size=128M

#redo log
innodb_flush_log_at_trx_commit=1
innodb_support_xa=ON
innodb_log_file_size=16M
innodb_log_files_in_group=2
innodb_log_group_home_dir=./ 

#binlog 
sync_binlog=1
binlog_format=row
max_binlog_size=1073741082
log-bin=master01
expire_logs_days = 7

#Replication availability
master-info-repository=TABLE
relay-log-info-repository=TABLE
relay_log_recovery=1
sync_relay_log=1
sync_relay_log_info=1

#flush
innodb_io_capacity=200
innodb_flush_neighbors=0 

#gtid 
server-id=1     
gtid-mode=on
enforce-gtid-consistency=true
auto_increment_offset=1
auto_increment_increment=2
log-slave-updates=true
 

#（4）compose文件

#cat /temp/docker/mysql3307/mysql3307.yaml 
version: ‘2.2‘
services:
    mysql3307:
        hostname: mysql3307
        container_name: mysql3307
        restart: always
        image: registry.cn-hangzhou.aliyuncs.com/wangfang-dev/mysql:5.6
        ports:
            - 3307:3306
        volumes:
            - /mysql3307/conf:/etc/mysql/conf.d
            - /mysql3307/data:/var/lib/mysql
        environment:
            MYSQL_ROOT_PASSWORD: 123456
        cpus: 1
        mem_limit: 2048m
 

#（5）先啟動master01和準備一些數據

docker-compose -f /temp/docker/mysql3307/mysql3307.yaml up -d
啟動成功, 進入容器裏面的數據庫先創建一些數據
docker exec -it mysql3307 bash 
mysql -uroot -p123456

創建復制和備份賬戶
grant replication slave,replication client on *.* to ‘rep‘@‘%‘ identified by ‘rep‘;
grant reload,process,lock tables,replication client on *.* to backup@‘%‘ identified by ‘backup‘;

#（6）在master01和master02上創建備份目錄和安裝percona備份軟件

mkdir -pv /backup/db3307
yum install epel-release -y
yum install percona-xtrabackup.x86_64 -y

#（7）在master01上進行完整備份

innobackupex --defaults-file=/mysql3307/conf/my.cnf  --user=backup --password=backup --host=192.168.19.131 --port=3307 /backup/db3307
同時把備份傳到master02上:scp -r /backup/db3307/2019-03-02_23-13-39/ 192.168.19.132:/backup/db3307/

#（8）在master02上進行恢復備份和啟動mysql容器

docker-compose -f /temp/docker/mysql3307/mysql3307.yaml down
rm -rf /mysql3307/data/*
innobackupex --defaults-file=/mysql3307/conf/my.cnf --apply-log --redo-only /backup/db3307/2019-03-02_23-13-39/
innobackupex --defaults-file=/mysql3307/conf/my.cnf --copy-back /backup/db3307/2019-03-02_23-13-39/
docker-compose -f /temp/docker/mysql3307/mysql3307.yaml up -d

#（9）在master02上查看完整備份的已執行過的gtid

[root@fs02 ~]# cat /backup/db3307/2019-03-02_23-13-39/xtrabackup_binlog_info 
master01.000004 2028    97c3fe88-3cfc-11e9-b08a-0242ac120002:1-7147

#（10）在master02上進入容器的mysql, 跳過已執行過的GTID和設置master01作為master02的從

docker exec -it mysql3307 bash
root@mysql3307:/# mysql -uroot -p123456
mysql> reset master;
mysql> set @@global.gtid_purged=‘97c3fe88-3cfc-11e9-b08a-0242ac120002:1-7147‘;
mysql> change master to master_host=‘192.168.19.131‘,master_user=‘rep‘,master_password=‘rep‘,master_port=3307,master_auto_position=1;
mysql> start slave;

主從復制沒有問題

#（11）回到master01上, 配置master02作為master01的從

docker exec -it mysql3307 bash 
mysql -uroot -p123456
mysql>change master to master_host=‘192.168.19.132‘,master_user=‘rep‘,master_password=‘rep‘,master_port=3307,master_auto_position=1;
mysql>start slave

主從復制沒有問題

#（12）分別在master01上和master02上創建一些數據進行驗證

mysql5.6版本基於GTID雙主-docker方式-主庫有數據