1. 參照官網，安裝docker
2.拉取mysql鏡像 （默認拉取最新的鏡像）8.0.11
3.在宿主機創建持久化 mysql data 及mysql.cnf
mkdir /usr/local/mysqlData/test/cnf
mkdir /usr/local/mysqlData/test/data
vi /usr/loal/mysqlData/test/cnf/mysql.cnf
設置本地文件共享：
Docker -> Preferences... -> File Sharing
4.添加操作權限
chmod 777 /usr/local/mysqlData/test/data 備注：掛載時權限驗證（操作權限）
5.運行鏡像，設置初始密碼、本機與docker端口的映射與掛載本地數據盤 (啟動msyql服務)
docker run -itd -p 3307:3306 --name test_mysql -v /usr/local/mysqlData/test/conf:/etc/mysql
-v /usr/local/mysqlData/test/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 mysql
運行結果：
6. 進入test_mysql 容器
Docker exec -it test_mysql bash
如圖：
7.在容器內登錄mysql
8.查看用戶信息
mysql> select user,host,authentication_string from mysql.user;
+------------------+-----------+------------------------------------------------------------------------+
| user | host | authentication_string |
+------------------+-----------+------------------------------------------------------------------------+
| root | % | $A$005$7o{'|'AomAw(QvF#.p5wLtCnrG6yX6XQdDVQivGr96POVL.gKnhIAhUhl3. |
| mysql.infoschema | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| mysql.session | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| mysql.sys | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| root | localhost | $A$005$0.-%i)H{uYi@zFo7uYF82fYw7DsA93vYLr4uZv6I1tSKao0sbzzcDap3 |
+------------------+-----------+------------------------------------------------------------------------+
5 rows in set (0.00 sec)
9.設置權限（為root分配權限，以便可以遠程連接）
mysql> grant all PRIVILEGES on *.* to root@'%' WITH GRANT OPTION;
Query OK, 0 rows affected (0.01 sec)
10.由于Mysql5.6以上的版本修改了Password算法，這里需要更新密碼算法，便于使用Navicat連接
mysql> grant all PRIVILEGES on *.* to root@'%' WITH GRANT OPTION;
Query OK, 0 rows affected (0.01 sec)
mysql> ALTER user 'root'@'%' IDENTIFIED BY '123456' PASSWORD EXPIRE NEVER;
Query OK, 0 rows affected (0.11 sec)
mysql> ALTER user 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
Query OK, 0 rows affected (0.11 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)
11. 使用navicat 連接mysql,如圖：
12.建庫、建表、加數據
查看掛載本地數據盤的內容：
13. 測試將容器移除后，數據是否仍然存在
容器已經移除了。重新部署test_mysql,參照第5的步驟，進入新容器，訪問數據庫：
xushijiandeiMac:data xushijian$ docker run -itd -p 3307:3306 --name test_mysql -v /usr/local/mysqlData/test/conf:/etc/mysql -v /usr/local/mysqlData/test/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 mysql
65b7a60050aaef5765ed055acfd071c7c76f60e85dc25d0e73e0d56eae14aed1
xushijiandeiMac:data xushijian$ docker exec -it test_mysql bash
root@65b7a60050aa:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.11 MySQL Community Server - GPL
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
+--------------------+
5 rows in set (0.01 sec)
mysql> use test;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from user_user;
+---------+-----------+-------------+--------+
| user_id | user_name | phone | note |
+---------+-----------+-------------+--------+
| 1 | 沒長正 | 13980000000 | 測試 |
+---------+-----------+-------------+--------+
1 row in set (0.06 sec)
發現數據仍然可以使用，不需要額外的配置，實現了數據的持久化。
阿里云上docker 部署 MySQL(通過編排模板部署)
<1. 配置同第3步類似（只是目錄變化）
master:
image: 'mysql:latest'
environment:
- MYSQL_ROOT_PASSWORD=123456
ports:
- '3307:3306/tcp'
volumes:
- '/usr/local/mysqlData/master/conf:/etc/mysql:rw'
- '/usr/local/mysqlData/master/data:/var/lib/mysql:rw'
labels:
aliyun.scale: '1'
<2.如下圖,已部署完成
[root@c13a6d832fd0a49398c62002361d75c60-node1 ~]# clear
[root@c13a6d832fd0a49398c62002361d75c60-node1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8597b7539a3a mysql:latest "docker-entrypoint..." 3 minutes ago Up 3 minutes 0.0.0.0:3307->3306/tcp mysql_master_1
<3.進入容器，進行權限設置，后續過程參照本機
[root@c13a6d832fd0a49398c62002361d75c60-node1 /]# docker exec -it mysql_master_1 bash
root@2fc0bbf48941-mysql-master-1:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.11 MySQL Community Server - GPL
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
<4. 開放3307端口，使得外網可以訪問
云服務器ECS -> 安全組 -> 選擇所在的地區 ->配置規則 -> 添加安全組
添加安全組，如圖：
5.外網訪問，如下圖
已連接成功。
主從環境搭建：
主庫：
[root@c13a6d832fd0a49398c62002361d75c60-node1 ~]# docker exec -it mysql_master_1 bash
root@2fc0bbf48941-mysql-master-1:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.11 MySQL Community Server - GPL
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.30 sec)
mysql> create database test;
Query OK, 1 row affected (0.12 sec)
mysql> show database;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'database' at line 1
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
+--------------------+
5 rows in set (0.00 sec)
從庫：
[root@c13a6d832fd0a49398c62002361d75c60-node1 ~]# docker exec -it mysql-slave_slave_1 bash
root@c8661e16e3fd-mysql-slave-slave-1:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 8.0.11 MySQL Community Server - GPL
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.40 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event 主從配置成功！
Master_Host: 47.94.225.124
Master_User: rep
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: binlog.000003
Read_Master_Log_Pos: 155
Relay_Log_File: c8661e16e3fd-mysql-slave-slave-1-relay-bin.000004
Relay_Log_Pos: 363
Relay_Master_Log_File: binlog.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 155
Relay_Log_Space: 762
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: a482f5fe-80fb-11e8-9fb1-0242ac12020c
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
Master_public_key_path:
Get_master_public_key: 0
1 row in set (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (1.01 sec)
mysql> show database;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'database' at line 1
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
+--------------------+
5 rows in set (0.00 sec)
主從庫原理分析：
i/o線程去請求主庫 的binlog，并將得到的binlog日志寫到relay log（中繼日志） 文件中； 主庫會生成一個 log dump 線程，用來給從庫 i/o線程傳binlog；
SQL 線程，會讀取relay log文件中的日志，并解析成具體操作，來實現主從的操作一致，而最終數據一致；
即： 從庫IO線程請求 -> 中繼日志 ->獲取binlog ->從庫SQL線程，解析
參考：
https://docs.docker.com/ docker 官網文檔
https://blog.csdn.net/gf0515/article/details/80466213 Mac Navicat連接Docker MySql8.0
docker mysql 主從復制
https://blog.csdn.net/qq_28804275/article/details/80891951 主從環境搭建
docker mysql Dockerfile mysql 開源鏡像Dockerfile及配置
https://www.cnblogs.com/Aiapple/p/5792939.html 主從復制原理、高可用分析
http://www.cnblogs.com/Aiapple/p/5793786.html 實戰
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