docker 中运行 sshd 服务

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创建Dockerfile

# sshd
#
# VERSION               0.0.2

FROM ubuntu:14.04
MAINTAINER admln <admln@docker.com>

RUN apt-get update && apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo 'root:admln' | chpasswd
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config

# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd

ENV NOTVISIBLE "in users profile"
RUN echo "export VISIBLE=now" >> /etc/profile

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

构建镜像

sudo docker build --rm -t example_sshd .

运行它然后找出映射到主机的端口

sudo docker run -d -P --name the_sshd example_sshd

sudo docker port the_sshd 22

得到映射到主机的端口

测试连接

ssh root@127.0.0.1 -p 49160

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