mysqld: Can‘t read dir of ‘/etc/mysql/conf.d/‘ (Errcode: 13 - Permission denied)_mysqld: can't read dir of '/etc/mysql/conf.d/

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在安装docker mysql：5.7版本时，出现错误：

mysqld: Can't read dir of '/etc/mysql/conf.d/' (Errcode: 13 - Permission denied)
mysqld: [ERROR] Fatal error in defaults handling. Program aborted!

ERROR: mysqld failed while attempting to check config
command was: "mysqld --verbose --help"
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原因
因为Centos7安全Selinux禁止了一些安全权限，导致mysql和mariadb在进行挂载/var/lib/mysql的时候会提示如下信息

解决方法
在docker run中加入 --privileged=true 给容器加上特定权限

docker run -id --privileged=true \
-p 3306:3306 \
--name=c_mysql \
-v $PWD/conf:/etc/mysql/conf.d \
-v $PWD/logs:/logs \
-v $PWD/data:/var/lib/mysql \
-e MYSQL_ROOT_PASSWORD=root \
mysql:5.6
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