一、docker-composemysql 5.7

单机版mysql 5.7

## docker-compose config                  ## 检查当前目录docker-compose.yml文件配置是否正确
## docker-compose up -d                   ## -d 为后台启动
## docker-compose up -d --force-rereate  ## 强制重新创建容器,修改挂载文件后使用该命令启动,谨慎使用,调试时可使用,使用此命令可能造成数据丢失version: "3"
services:mysql:image: docker.io/mysql:5.7container_name: mysql5.7restart: alwayscommand: ['--default-authentication-plugin=mysql_native_password','--character-set-server=utf8mb4','--collation-server=utf8mb4_general_ci','--explicit_defaults_for_timestamp=true','--lower_case_table_names=1']environment:MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PWD}MYSQL_INITDB_SKIP_TZINFO: "Asia/Shanghai"#MYSQL_DATABASE: data_sysvolumes:#数据目录，要确保先创建好- ./mysql/data:/var/lib/mysql- ./mysql/logs:/var/log/mysql##初始化的脚本，初始化我们存放的init.sql文件- ./mysql/initdb:/docker-entrypoint-initdb.d/- ./mysql/conf:/etc/mysql/conf.dports:- 3306:3306healthcheck:test: mysqladmin ping -uroot -p${MYSQL_ROOT_PWD}#test: [ "CMD", "mysqladmin", "ping", "-h", "localhost", "-uroot", "-p123456" ]interval: 6stimeout: 5sretries: 10#network_mode: host

双主热备mysql5.7配置步骤

1、启动docker-compose并配置m1和m2的双主

启动（双主）

创建docker-compose.yml配置文件

version: "3"
services:mysql:image: docker.io/mysql:5.7container_name: mysql5.7mmrestart: alwayscommand: ['--default-authentication-plugin=mysql_native_password','--character-set-server=utf8mb4','--collation-server=utf8mb4_general_ci','--explicit_defaults_for_timestamp=true','--lower_case_table_names=1']environment:MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PWD}MYSQL_INITDB_SKIP_TZINFO: "Asia/Shanghai"#MYSQL_DATABASE: data_sysvolumes:#数据目录，要确保先创建好- ./mysql/data:/var/lib/mysql- ./mysql/logs:/var/log/mysql#初始化的脚本，初始化我们存放的init.sql文件- ./mysql/initdb:/docker-entrypoint-initdb.d/- ./mysql/my.cnf:/etc/mysql/my.cnfports:- 3306:3306healthcheck:test: mysqladmin ping -uroot -p${MYSQL_ROOT_PWD}#test: [ "CMD", "mysqladmin", "ping", "-h", "localhost", "-uroot", "-p123456" ]interval: 6stimeout: 5sretries: 10#network_mode: host

创建my.cnf配置文件

mkdir mysql && cd mysql
vim my.cnf

my.cnf

[mysqld]
# binlog 配置
log-bin=mysql-bin
binlog_format=mixed# server-id 配置,必须唯一
server-id = 2# 确保binlog日志写入后与硬盘同步
sync_binlog = 1# 如果当前实例既做主库又做从库次选线必须开启
log-slave-updates=ON# 自增长ID
# 特殊说明 当该实例为双主的架构时要特殊配置 以避免自增id冲突的问题
auto_increment_offset = 1
auto_increment_increment = 2# 复制过滤：也就是指定哪个数据库不用同步（mysql库一般不同步）
# binlog-ignore-db=mysql
# 要同步的数据库名
# replicate-do-db=test_db# 跳过所有的错误，继续执行复制操作
slave-skip-errors = all  

分别在两台主机上启动

docker-compose up -d

进入m1和m2下执行下列命令来获取各自的master status 和同步账号

m1和m2:

docker exec -it mysql-m1 bashmysql -uroot -p123456# 查看m1 File和Position
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000005 |      154 |              | mysql            |                   |
+------------------+----------+--------------+------------------+-------------------+# 创建同步账号
mysql> grant replication slave,replication client on *.* to 'slave'@'%' identified by "pwd-ms-sync";
mysql> flush privileges;

2、设置主主

根据master状态拼接设置slave的命令

# 设置当前节点监听的master节点
change master TO master_host = '172.16.223.140',master_port = 3306,master_user = 'slave',master_password = 'pwd-ms-sync',master_log_file = 'mysql-bin.000003',master_log_pos = 620,master_connect_retry=30;# 启动当前为从节点
start slave;
# 停止从节点
stop slave;# 查看主从状态
show slave status\G;

m1:

mysql> change master to master_host='mysql-m2',master_user='slave',master_password='pwd-ms-sync',master_port=3306,master_log_file='mysql-bin.000005', master_log_pos=154,master_connect_retry=30;mysql> start slave;mysql> show slave status \G
*************************** 1. row ***************************Slave_IO_State: Waiting for master to send eventMaster_Host: mysql-m2Master_User: slaveMaster_Port: 3306Connect_Retry: 30Master_Log_File: mysql-bin.000005Read_Master_Log_Pos: 620Relay_Log_File: de7a84f1b7f1-relay-bin.000002Relay_Log_Pos: 786Relay_Master_Log_File: mysql-bin.000005Slave_IO_Running: YesSlave_SQL_Running: YesReplicate_Do_DB:Replicate_Ignore_DB:

m2:

mysql> change master to master_host='mysql-m1',master_user='slave',master_password='pwd-ms-sync',master_port=3306,master_log_file='mysql-bin.000005', master_log_pos=154,master_connect_retry=30;mysql> start slave;mysql> show slave status \G
*************************** 1. row ***************************Slave_IO_State: Waiting for master to send eventMaster_Host: mysql-m1Master_User: slaveMaster_Port: 3306Connect_Retry: 30Master_Log_File: mysql-bin.000005Read_Master_Log_Pos: 1086Relay_Log_File: 65322be4d8a9-relay-bin.000002Relay_Log_Pos: 786Relay_Master_Log_File: mysql-bin.000005Slave_IO_Running: YesSlave_SQL_Running: YesReplicate_Do_DB:Replicate_Ignore_DB:

如下两个配置为Yes表示从节点设置成功Slave_IO_Running: YesSlave_SQL_Running: Yes

参考文档：https://dogslee.top/2021/08/23/docker-compose%E6%90%AD%E5%BB%BAMySql%E4%B8%BB%E4%BB%8E%E5%92%8C%E5%8F%8C%E4%B8%BB/

二、docker-compose部署mysql 8

1、单机版mysql 8.0

## docker-compose config                  ## 检查当前目录docker-compose.yml文件配置是否正确
## docker-compose up -d                   ## -d 为后台启动
## docker-compose up -d --force-rereate  ## 强制重新创建容器,修改挂载文件后使用该命令启动,谨慎使用,调试时可使用,使用此命令可能造成数据丢失version: "3"
services:mysql:image: mysql:8.0.33container_name: mysql8restart: alwayscommand: ['--default-authentication-plugin=mysql_native_password','--character-set-server=utf8mb4','--collation-server=utf8mb4_general_ci','--explicit_defaults_for_timestamp=true','--lower_case_table_names=1']environment:MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PWD}MYSQL_INITDB_SKIP_TZINFO: "Asia/Shanghai"volumes:#数据目录，要确保先创建好- ./mysql/data:/var/lib/mysql- ./mysql/logs:/logs##初始化的脚本，初始化我们存放的init.sql文件- ./mysql/initdb:/docker-entrypoint-initdb.d/- ./mysql/conf:/etc/mysql/conf.dports:- 3306:3306healthcheck:test: mysqladmin ping -uroot -p${MYSQL_ROOT_PWD}#test: [ "CMD", "mysqladmin", "ping", "-h", "localhost", "-uroot", "-p123456" ]interval: 6stimeout: 5sretries: 10#network_mode: host

2、双主热备mysql8配置步骤

分别在两台主机上启动，在两个节点上先执行完前两步
创建docker-compose.yml文件

version: "3"
services:mysql:image: mysql:8.0.33container_name: mysql8mmrestart: alwayscommand: ['--default-authentication-plugin=mysql_native_password','--character-set-server=utf8mb4','--collation-server=utf8mb4_general_ci','--explicit_defaults_for_timestamp=true','--lower_case_table_names=1']environment:MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PWD}MYSQL_INITDB_SKIP_TZINFO: "Asia/Shanghai"#MYSQL_DATABASE: data_sysvolumes:#数据目录，要确保先创建好- ./mysql/data:/var/lib/mysql- ./mysql/logs:/var/log/mysql#初始化的脚本，初始化我们存放的init.sql文件- ./mysql/initdb:/docker-entrypoint-initdb.d/- ./mysql/my.cnf:/etc/my.cnfports:- 3306:3306healthcheck:test: mysqladmin ping -uroot -p${MYSQL_ROOT_PWD}#test: [ "CMD", "mysqladmin", "ping", "-h", "localhost", "-uroot", "-p123456" ]interval: 6stimeout: 5sretries: 10#network_mode: host

创建my.cnf配置文件

mkdir mysql && cd mysql
vim my.cnf

my.cnf

[mysqld]
# binlog 配置
log-bin=mysql-bin
binlog_format=mixed# server-id 配置,必须唯一
server-id = 2# 确保binlog日志写入后与硬盘同步
sync_binlog = 1# 如果当前实例既做主库又做从库次选线必须开启
log_replica_updates=ON # 自增长ID
# 特殊说明 当该实例为双主的架构时要特殊配置 以避免自增id冲突的问题
auto_increment_offset = 1
auto_increment_increment = 2# 复制过滤：也就是指定哪个数据库不用同步（mysql库一般不同步）
# binlog-ignore-db=mysql
# 要同步的数据库名
# replicate-do-db=test_db

1)、创建同步用户

create user 'slave'@'%' identified by 'pwd-ms-sync';

2)、赋权同步权限

grant replication slave,replication client on *.* to 'slave'@'%';
flush privileges;

3)、先查master节点的状态

设置主主

两台机器互为主从，交换完成如下几步
先在master执行第3步，然后再在slave节点执行第4、5、6步

mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000005 |      154 |              | mysql            |                   |
+------------------+----------+--------------+------------------+-------------------+

4)、根据第3步的master状态拼接设置slave的命令

change master TO master_host = '172.16.223.140',master_port = 3306,master_user = 'slave',master_password = 'pwd-ms-sync',master_log_file = 'mysql-bin.000003',master_log_pos = 863,master_connect_retry=30;

5)、启动当前为从节点

start slave;

6)、查看主从状态

show slave status\G;

mysql> show slave status\G;
*************************** 1. row ***************************Slave_IO_State: Waiting for source to send eventMaster_Host: 172.16.223.140Master_User: slaveMaster_Port: 3307Connect_Retry: 30Master_Log_File: mysql-bin.000003Read_Master_Log_Pos: 863Relay_Log_File: f45bf55e91c3-relay-bin.000002Relay_Log_Pos: 324Relay_Master_Log_File: mysql-bin.000003Slave_IO_Running: YesSlave_SQL_Running: Yes

如下两个配置为Yes表示从节点设置成功Slave_IO_Running: YesSlave_SQL_Running: Yes