SSH Docker container

System has not been booted with systemd as init system (PID 1). Can't operate. Failed to connect to bus: Host is down

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解决方法：

docker run -itd  --privileged --name centos centos /usr/sbin/init

创建完成后，请使用以下命令进入容器：

docker exec -it centos /bin/bash

安装openssh服务器端、客户端等工具：

yum install passwd openssl openssh-server openssh-clients initscripts -y

启动 ssh，systemctl start sshd