Dockefile CentOS SSH 服务的实现

1， docker 安装

yum -y install docker-io

2, docker服务启动

service docker restart
chkconfig docker on

3, docker 镜像下载

docker pull centos6

4, docker dockerfile SSH 实现
a) mkdir /data/docker/ssh -p
b) vim /data/docker/ssh/Dockerfile

FROM centos:centos6

MAINTAINER william "swq.499809608@hotmail.com"

RUN yum install -y openssh-server sudo
RUN sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config

RUN useradd william
RUN echo "william:william" | chpasswd
RUN echo "william   ALL=(ALL)       ALL" >> /etc/sudoers

RUN ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key
RUN ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key

RUN mkdir /var/run/sshd
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]

5, 生成docker 镜像

docker build -t centos6-bash-ssh ssh

6, 启动docker centos6-bash-ssh 镜像

docker  run -i -t centos6-bash-ssh /bin/bash

7, 验证docker centos6-bash-ssh 镜像

[root@AthController53 sshd]# docker attach 7977c7fee355
bash-4.1# ifconfig
eth0      Link encap:Ethernet  HWaddr 6E:5A:DD:C2:57:F1
inet addr:172.17.0.10  Bcast:0.0.0.0  Mask:255.255.0.0
inet6 addr: fe80::6c5a:ddff:fec2:57f1/64 Scope:Link
UP BROADCAST RUNNING  MTU:1500  Metric:1
RX packets:350 errors:0 dropped:0 overruns:0 frame:0
TX packets:206 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:39054 (38.1 KiB)  TX bytes:31757 (31.0 KiB)
lo        Link encap:Local Loopback
inet addr:127.0.0.1  Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
bash-4.1#

[root@AthController53 sshd]# ssh 172.17.0.10
root@172.17.0.10's
password:
Last login: Tue Nov 11 09:43:14 2014 from 172.17.42.1
-bash-4.1#