当我们在执行rpm -ivh mysql-community-devel-8.0.28-1.el7.x86_64.rpm提示：
warning: mysql-community-devel-8.0.28-1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID 3a79bd29: NOKEY error: Failed dependencies: pkgconfig(openssl) is needed by mysql-community-devel-8.0.28-1.el7.x86_64
这是由于缺少openssl-devel，使用如下命令安装一下就可以了：
yum install openssl-devel -y
接着再执行rpm -ivh mysql-community-devel-8.0.28-1.el7.x86_64.rpm就不会报错了
