Docker ssh遠程連接使用
查看docker鏡像
[root@xiaoniu ~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
insaneworks/centos latest 863eb06e0f75 5 months ago 126.6 MB
learn/tutorial latest 8dbd9e392a96 2.283295 years ago 128 MB
交互方式創建容器
[root@xiaoniu ~]# docker run -i -t insaneworks/centos /bin/bash
bash-4.1# yum install openssh-server -y
bash-4.1# service sshd start
Generating SSH2 RSA host key: [ OK ]
Generating SSH1 RSA host key: [ OK ]
Generating SSH2 DSA host key: [ OK ]
Starting sshd: [ OK ]
bash-4.1# yum install passwd -y
問題
bash-4.1# passwd root
Changing password for user root.
New password:
/usr/share/cracklib/pw_dict.pwd: No such file or directory
PWOpen: No such file or directory
解決：
bash-4.1# yum reinstall cracklib-dicts -y
設置root密碼
bash-4.1# passwd root
Changing password for user root.
New password:
BAD PASSWORD: it is too simplistic/systematic
BAD PASSWORD: is too simple
Retype new password:
passwd: all authentication tokens updated successfully.
修改sshd_config
bash-4.1# yum install vi -y
bash-4.1# vi /etc/ssh/sshd_config
UsePAM yes改成UsePAM no
bash-4.1# service sshd restart
保存當前狀態到新鏡像
[root@xiaoniu ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
accefb562a4d insaneworks/centos:latest "/bin/bash" 8 minutes ago Up 8 minutes romantic_meitner
[root@xiaoniu ~]# docker commit accefb562a4d llsshd
d277570a7ccc39d6d99ed37f11fb6bed31935e01a5d937bc6ee7d7c32075596b
[root@xiaoniu ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
accefb562a4d insaneworks/centos:latest "/bin/bash" 9 minutes ago Exited (0) 5 seconds ago romantic_meitner
[root@xiaoniu ~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
llsshd latest d277570a7ccc 29 seconds ago 195 MB
insaneworks/centos latest 863eb06e0f75 5 months ago 126.6 MB
learn/tutorial latest 8dbd9e392a96 2.283313 years ago 128 MB
[root@xiaoniu ~]# docker run -d -p 22 llsshd /usr/sbin/sshd -D
5c16ef8bf156b6b5b51de673650b5c32109d700ea90ad2028e833eb6dfbfa1c7
[root@xiaoniu ~]# docker port 5c1 22
0.0.0.0:49154
連接測試
[root@xiaoniu ~]# ssh [email protected] -p 49154
The authenticity of host '[127.0.0.1]:49154 ([127.0.0.1]:49154)' can't be established.
RSA key fingerprint is 0b:bc:6a:be:ca:bb:ca:b4:c9:be:3c:26:87:ea:fe:a0.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[127.0.0.1]:49154' (RSA) to the list of known hosts.
[email protected]'s password:
-bash-4.1# ifconfig
eth0 Link encap:Ethernet HWaddr C2:53:8B:04:33:65
inet addr:172.17.0.5 Bcast:172.17.255.255 Mask:255.255.0.0
inet6 addr: fe80::c053:8bff:fe04:3365/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:41593 errors:0 dropped:0 overruns:0 frame:0
TX packets:36603 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:51819285 (49.4 MiB) TX bytes:5398781 (5.1 MiB)
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:65536 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# exit
另附一篇好文章（關於容器中真的需要sshd嗎）：http://www.server110.com/docker/201411/11216.html
