创建SSH服务镜像

参考文献

https://www.linuxprobe.com/docker-create-ssh.html

  1. 准备工作

docker run -it ubuntu:14.04 /bin/bash


2. 安装和配置SSH服务
cp /etc/apt/sources.list /etc/apt/sources.list.bak
cat /etc/apt/sources.list<<EOF
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
EOF

在docker容器中安装ssh服务

apt-get install openssh-server

SSH需要的一个目录/var/run/sshd不存在。这里手动创建该目录
mkdir -p /var/run/sshd
接着，以后台方式启动SSH服务：
root@9598cb8e8f4a:/var/run# /usr/sbin/sshd -D &
[1] 3263

netstat -natp

默认情况下，pam认证程序会对我们的SSH登录进行限制。修改pam对SSH的配置，取消登录
限制，具体操作为编辑/etc/pam.d/sshd，将下面这行注释掉（在前面加#）：
session required pam_loginuid.so

dockerfile方式

centos7 ssh dockerfile

https://www.cnblogs.com/fengjian2016/p/12496438.html

Dockerfile

FROM centos:centos7.7.1908
ENV PATH $PATH:/usr/local/mysql/bin/

RUN yum -y install wget \
    && rm -rf /etc/yum.repos.d/* \
       && cd /etc/yum.repos.d/ \
    && wget http://mirrors.aliyun.com/repo/Centos-7.repo \
    && wget http://mirrors.aliyun.com/repo/epel-7.repo \
    &&  yum clean all \
        && yum install -y openssh-server bind-utils sysstat telnet net-tools glibc-common gcc automake autoconf libtool make gcc-c++ unzip libaio-devel numactl vim openssh* \

    && sed -i 's/GSSAPIAuthentication yes/GSSAPIAuthentication no/g' /etc/ssh/sshd_config \
    &&  sed -i 's/#UseDNS yes/UseDNS no/g' /etc/ssh/sshd_config \
    && echo '123456' | passwd --stdin root \
    && ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key \
    && ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key


COPY mysql /usr/local/mysql
ADD my.cnf /etc/

RUN mkdir -p /data/mysql/mysql3306/{data,logs,temp} \
&& groupadd mysql \
&& useradd -g mysql -s /sbin/nologin -d /usr/local/mysql -MN mysql \
&& echo "PATH=$PATH:/usr/local/mysql/bin/" >>/etc/profile \
&& chown -R mysql.mysql /data/mysql

RUN chown -R mysql.mysql /usr/local/mysql

# ------------------------------------------------------------------------------
ADD localtime /etc/localtime

RUN mkdir /var/run/sshd

WORKDIR /root/

EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]