MySQL 使用 SSL 连接(附 Docker 例子)

目录 查看是否支持 SSL
使用 OpenSSL 创建 SSL 证书和私钥
创建 CA 私钥和 CA 证书
创建服务器端的 RSA 私钥和数字证书
创建客户端的 RSA 私钥和数字证书
使用工具创建证书与私钥
SSL 配置
服务器端配置
客户端配置
在 Docker 中使能 MySQL SSL 连接 查看是否支持 SSL

首先在 MySQL 上执行如下命令, 查询是否 MySQL 支持 SSL:

mysql> SHOW VARIABLES LIKE 'have_ssl'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | have_ssl | YES | +---------------+-------+ 1 row in set (0.02 sec)

当 have_ssl 为 YES 时, 表示此时 MySQL 服务已经支持 SSL 了. 如果是 DESABLE, 则需要在启动 MySQL 服务时, 使能 SSL 功能.

使用 OpenSSL 创建 SSL 证书和私钥

首先我们需要使用 openssl 来创建服务器端的证书和私钥. 我使用的 openssl 版本为:

>>> /usr/local/Cellar/openssl/1.0.2j/bin/openssl version OpenSSL 1.0.2j 26 Sep 2016

新建一个 ~/temp/cert 目录, 用于存放生成的证书和私钥

mkdir ~/temp/cert cd ~/temp/cert 创建 CA 私钥和 CA 证书

然后, 我们先来生成一个 CA 私钥:

openssl genrsa 2048 > ca-key.pem

当有了一个 CA 私钥, 我们接下来就可以使用这个私钥生成一个新的数字证书:

openssl req -sha1 -new -x509 -nodes -days 3650 -key ca-key.pem > ca-cert.pem

执行这个命令时, 会需要填写一些问题, 随便填写就可以了. 例如:

>>> openssl req -sha1 -new -x509 -nodes -days 3650 -key ca-key.pem > ca-cert.pem You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]:CN State or Province Name (full name) [Some-State]:Beijing Locality Name (eg, city) []:Beijing Organization Name (eg, company) [Internet Widgits Pty Ltd]:xys Organizational Unit Name (eg, section) []:xys Common Name (e.g. server FQDN or YOUR name) []:xys Email Address []:yongshun1228@gmail.com

执行上述命令后, 我们就有了一个 CA 私钥和一个 CA 证书.

创建服务器端的 RSA 私钥和数字证书

接着, 我们需要创建服务器端的私钥和一个证书请求文件, 命令如下:

openssl req -sha1 -newkey rsa:2048 -days 3650 -nodes -keyout server-key.pem > server-req.pem

上面这个命令会生成一个新的私钥(server-key.pem), 同时会使用这个新私钥来生成一个证书请求文件(server-req.pem).
上面这个命令同样需要回答几个问题, 随便填写即可. 不过需要注意的是, A challenge password 这一项需要为空.
即:

>>> openssl req -sha1 -newkey rsa:2048 -days 3650 -nodes -keyout server-key.pem > server-req.pem Generating a 2048 bit RSA private key .................+++ ..+++ writing new private key to 'server-key.pem' ----- You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]:CN State or Province Name (full name) [Some-State]:Beijing Locality Name (eg, city) []:Beijing Organization Name (eg, company) [Internet Widgits Pty Ltd]:xys Organizational Unit Name (eg, section) []:xys Common Name (e.g. server FQDN or YOUR name) []:xys Email Address []:yongshun1228@gmail.com Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:

下一步, 我们需要将生成的私钥转换为 RSA 私钥文件格式:

openssl rsa -in server-key.pem -out server-key.pem