# Base Image
FROM centos:7

# Author
MAINTAINER c32 amd5@qq.com

#用户
USER root

#更新源
RUN yum install -y wget
RUN mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
RUN wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

#安装soft
RUN yum install -y vim vi openssh-server openssh-clients net-tools unzip git

#创建 /var/run/sshd/目录，要不然sshd服务启动会报错
RUN mkdir /var/run/sshd/

#修改ssh配置
#RUN sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config

#生成ssh-key与配置ssh-key
RUN ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
RUN ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key
RUN ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key

#修改root用户登录密码
RUN echo 'root:c32'|chpasswd

#开放22端口
EXPOSE 22

#镜像运行时，启动sshd
CMD ["/usr/sbin/init"]
#CMD ["/usr/sbin/sshd","-D"]

#启动命令
#docker run --privileged -d -it --name centos -p 22:22 centos:c1 /usr/sbin/init