【菜鸟教程】CentOS Docker 安装
    https://www.runoob.com/docker/centos-docker-install.html

    Docker Dockerfile
    https://www.runoob.com/docker/docker-dockerfile.html

    mysqldump备份文件
    查询所有的备份文件，导出sql文件

    1. mysqldump -h127.0.0.1 -P3306 -uroot -p123456 --databases dbName --set-gtid-purged=OFF --triggers --routines --events > dbName.sql

    恢复备份文件

    1. mysql -h127.0.0.1 -P3306 -uroot -p123456 dbName < dbName.sql

    mysql注意事项
    error：The server requested authentication method unknown to the client 

    1. ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
    2. ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'password';
    3. FLUSH PRIVILEGES;

    nginx https