Docker Centos安装Openssh
环境介绍：
Docker版本：1.5.0
镜像：docker.io:centos latest
操作步骤：
1、启动镜像
docker run -ti centos /bin/bash
2、安装passwd
yum install passwd -y
3、修改Centos root密码
# passwdChanging password for user root.New password: 123456BAD PASSWORD: The password is shorter than 8 charactersRetype new password: 123456passwd: all authentication tokens updated successfully.
4、安装openssh
yum install openssh-server -y
5、生成公钥、私钥
[root@378ab88a06c8 /]# ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_keyGenerating public/private rsa key pair.Enter passphrase (empty for no passphrase): (直接回车)Enter same passphrase again: (直接回车)Your identification has been saved in /etc/ssh/ssh_host_rsa_key.Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.The key fingerprint is:33:3c:34:49:e4:76:7d:45:cc:69:ac:46:85:ab:27:9e root@378ab88a06c8The key's randomart p_w_picpath is:+--[ RSA 2048]----+| .o +=+|| o . . o =o|| * . o = || + o = || S o || + o . || . + || E || |+-----------------+[root@378ab88a06c8 /]# ssh-keygen -t rsa -f /etc/ssh/ssh_host_ecdsa_keyGenerating public/private rsa key pair.Enter passphrase (empty for no passphrase): (直接回车)Enter same passphrase again: (直接回车)Your identification has been saved in /etc/ssh/ssh_host_ecdsa_key.Your public key has been saved in /etc/ssh/ssh_host_ecdsa_key.pub.The key fingerprint is:09:ac:b0:61:55:de:e8:4f:5e:20:d9:fc:1e:b6:d7:79 root@378ab88a06c8The key's randomart p_w_picpath is:+--[ RSA 2048]----+| ... || . o * || + B = || . + o o + || . . . S = || + + o . . || o o . o E|| . . || |+-----------------+[root@378ab88a06c8 /]# ssh-keygen -t rsa -f /etc/ssh/ssh_host_ed25519_keyGenerating public/private rsa key pair.Enter passphrase (empty for no passphrase): (直接回车)Enter same passphrase again: (直接回车)Your identification has been saved in /etc/ssh/ssh_host_ed25519_key.Your public key has been saved in /etc/ssh/ssh_host_ed25519_key.pub.The key fingerprint is:63:0d:b5:fb:55:a4:56:47:43:6d:68:c0:47:2e:84:24 root@378ab88a06c8The key's randomart p_w_picpath is:+--[ RSA 2048]----+| E.ooooo=*|| o.o..++=|| . . .o+..|| o . o . || S o . || . . . . || . || || |+-----------------+
6、编写启动脚本
# vi /run.sh#!/bin/bash/usr/sbin/sshd -D# chmod +x /run.sh
7、修改SSH默认端口
# vi /etc/ssh/sshd_config Port 222
8、退出容器，保存镜像
[root@localhost ~]# docker ps -aCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES378ab88a06c8 centos:latest "/bin/bash" 52 minutes ago Exited (0) 29 seconds ago ecstatic_hawking [root@localhost ~]# docker commit 378ab88a06c8 sshd:centos9f400c5422109a3403779f4b055c673fae57d1a8809a84bad7a20fcc3574b3dc8、启动容器
[root@localhost ~]# docker p_w_picpathsREPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZEsshd centos 9f400c542210 2 minutes ago 271.3 MB192.168.31.202:5000/test latest f6c0d93ac266 3 days ago 315.6 MBdocker.io/centos latest fd44297e2ddb 3 weeks ago 215.7 MBdocker.io/busybox latest 8c2e06607696 4 weeks ago 2.43 MB
[root@localhost ~]# docker run --net=host -d sshd:centos /run.shbbd39bbd7e03ffbd22b88725041793c74c50dbd4316d25bd20c8053265c3f8f1
9、远程连接测试
[root@localhost ~]# ssh 192.168.31.203 -p 222The authenticity of host '[192.168.31.203]:222 ([192.168.31.203]:222)' can't be established.RSA key fingerprint is 79:2f:94:52:bb:22:8c:32:f2:2c:0d:82:cb:b2:26:75.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added '[192.168.31.203]:222' (RSA) to the list of known hosts.root@192.168.31.203's password: Last login: Tue Jun 23 07:23:32 2015 from 192.168.7.46[root@localhost ~]# lltotal 0[root@localhost ~]# cd /[root@localhost /]# lltotal 44lrwxrwxrwx 1 root root 7 Apr 15 14:28 bin -> usr/bindrwxr-xr-x 5 root root 360 Jun 23 07:22 devdrwxr-xr-x 48 root root 4096 Jun 23 07:22 etcdrwxr-xr-x 2 root root 4096 Jun 10 2014 homelrwxrwxrwx 1 root root 7 Apr 15 14:28 lib -> usr/liblrwxrwxrwx 1 root root 9 Apr 15 14:28 lib64 -> usr/lib64drwx------ 2 root root 4096 Apr 15 14:26 lost+founddrwxr-xr-x 2 root root 4096 Jun 10 2014 mediadrwxr-xr-x 2 root root 4096 Jun 10 2014 mntdrwxr-xr-x 2 root root 4096 Jun 10 2014 optdr-xr-xr-x 348 root root 0 Jun 23 07:22 procdr-xr-x--- 2 root root 4096 Jun 4 02:20 rootdrwxr-xr-x 11 root root 240 Jun 23 07:22 run-rwxr-xr-x 1 root root 30 Jun 4 02:19 run.shlrwxrwxrwx 1 root root 8 Apr 15 14:28 sbin -> usr/sbindrwxr-xr-x 2 root root 4096 Jun 10 2014 srvdr-xr-xr-x 13 root root 0 May 15 07:27 sysdrwxrwxrwt 7 root root 140 Jun 23 07:30 tmpdrwxr-xr-x 13 root root 4096 Apr 15 14:28 usrdrwxr-xr-x 19 root root 4096 Apr 15 14:29 var[root@localhost /]#