Docker安装Mysql8 阿里云Centos7 解决caching_sha2_password_阿里云rds 修改caching_sha2_password

Docker安装Mysql8

阿里云自己的镜像加速

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://换成自己的.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
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镜像搜索下载查看

docker search mysql 
docker pull mysql:latest
--换镜像源之后好快
docker images
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这里修改之前的命令
不要用 rm 参数 停掉容器后就自己删了
换成下面的这个 密码用root吧 记不住

docker run -p 3306:3306 --name mysql8 
        -v /usr/mysql/conf:/etc/mysql 
        -v /usr/mysql/log:/var/log/mysql 
        -v /usr/mysql/data:/var/lib/mysql 
        -e MYSQL_ROOT_PASSWORD=root 
        -d mysql
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在mysql8的时候 只要有挂在路径 我这就没法启动，目前是不挂载目录启动

启动安装 进入设置用户
create database testdb character set utf8;
grant all privileges on testdb.* to ‘yognhu’@’%’;
flush privileges;

docker run -it --rm --name mysql -e MYSQL_ROOT_PASSWORD=密码 -p 3306:3306 -d mysql 
进入
docker exec -it mysql bash 
root@4091662cc52f:/# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.21 MySQL Community Server - GPL
这里发现最新的是8.0.21版本
Copyright (c) 2000, 2020, 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.

创建用户dev   数据库blog  授权  远程登录
mysql> create user dev identified by '密码';
Query OK, 0 rows affected (0.02 sec)

mysql> create database blog character set utf8
    -> ;
Query OK, 1 row affected, 1 warning (0.00 sec)
 
mysql> grant all privileges on blog.* to 'dev'@'%';
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges
    -> ;
Query OK, 0 rows affected (0.00 sec)

mysql> grant all privileges ON blog.* TO 'dev'@'%';
Query OK, 0 rows affected (0.01 sec)

mysql> flush privileges
    -> ;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW GRANTS FOR dev;
+-----------------------------------------------+
| Grants for dev@%                              |
+-----------------------------------------------+
| GRANT USAGE ON *.* TO `dev`@`%`               |
| GRANT ALL PRIVILEGES ON `blog`.* TO `dev`@`%` |
+-----------------------------------------------+
2 rows in set (0.00 sec)

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完成
发现dev用户远程登不进去
Authentication plugin ‘caching_sha2_password’ cannot be loaded
权限还有问题 再授权刷新一遍

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '密码' PASSWORD EXPIRE NEVER;  
Query OK, 0 rows affected (0.01 sec)

mysql> 
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '密码'; 
Query OK, 0 rows affected (0.00 sec)

mysql> 
mysql>  FLUSH PRIVILEGES;  
Query OK, 0 rows affected (0.00 sec)

mysql> ALTER USER 'dev'@'%' IDENTIFIED BY '密码' PASSWORD EXPIRE NEVER;  
Query OK, 0 rows affected (0.01 sec)

mysql> ALTER USER 'dev'@'%' IDENTIFIED WITH mysql_native_password BY '密码'; 
Query OK, 0 rows affected (0.01 sec)

mysql> FLUSH PRIVILEGES;  
Query OK, 0 rows affected (0.00 sec)

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好了 可以远程登录了

最后 开机自启动
docker update mysql --restart=always