1、镜像制作
yum install -y openssh-server
mkdir -p /var/run/sshd
sed -ri "s/session required pam_loginuid.so/#session required pam_loginuid.so/g" /etc/pam.d/sshd
mkdir /root/.ssh
ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
cat /root/.ssh/id_rsa.pub>/root/.ssh/authorized_keys
ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key
ssh-keygen -t dsa -f /etc/ssh/ssh_host_ed25519_key
/usr/sbin/sshd -D &
vi /root/run.sh

!/bin/bash

/usr/sbin/sshd -D

chmod +x /root/run.sh
echo "123456"|passwd --stdin root
2、保存镜像
docker commit centos7 hat/centos7ssh
3、启动
docker run -it -p 10022:22 --name "centos7" -d hat/centos7ssh /root/run.sh

批量删除容器 docker rm docker ps -a -q

4、连接方式
ssh ip -p 10022
5、上传镜像到阿里云
https://cr.console.aliyun.com/repository/cn-shenzhen/hatdocker/centos7ssh/detail
docker login --username=hatqiang registry.cn-shenzhen.aliyuncs.com
docker tag 9e99ee67033f registry.cn-shenzhen.aliyuncs.com/hatdocker/centos7ssh:latest
docker push registry.cn-shenzhen.aliyuncs.com/hatdocker/centos7ssh:latest
//拉取
docker pull registry.cn-shenzhen.aliyuncs.com/hatdocker/centos7ssh:latest
//////////////////////////////////////////////////////////////////////////////
Dockerfile文件方式
mkdir centos7ssh
cd centos7ssh
touch Dockerfile run.sh
vi run.sh

!/bin/bash

/usr/sbin/sshd -D

vi Dockerfile
FROM centos
MAINTAINER hat
RUN yum install -y openssh-server
RUN mkdir -p /var/run/sshd
ADD authorized_keys /root/.ssh/authorized_keys
ADD run.sh /root/run.sh
EXPOSE 22
CMD ["/root/run.sh"]

生成

docker build -t centos7ssh