创建支持SSH服务的镜像
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一、基于commit命令创建
docker commit CONTAINER [REPOSITORY [:TAG]]
1、使用ubuntu镜像创建一个容器
docker run -it ubuntu /bin/bash
2、配置软件源
[email protected]:/# cp /etc/apt/sources.list /etc/apt/sources.list.bak [email protected]:/# apt-get update [email protected]:/# apt-get install vim [email protected]:/# vim /etc/apt/sources.list //配置阿里云软件源 # deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial universe deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb http://mirrors.aliyun.com/ubuntu/ xenial multiverse deb http://mirrors.aliyun.com/ubuntu/ xenial-updates multiverse deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-properties deb http://archive.canonical.com/ubuntu xenial partner deb-src http://archive.canonical.com/ubuntu xenial partner deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted multiverse universe #Added by software-properties deb http://mirrors.aliyun.com/ubuntu/ xenial-security universe deb http://mirrors.aliyun.com/ubuntu/ xenial-security multiverse [email protected]:/# apt-get update
3、安装和配置SSH服务
[email protected]:/# apt-get install openssh-server [email protected]:/# mkdir -p /var/run/sshd [email protected]:/# /usr/sbin/sshd -D & [1] 4003 [email protected]:/# jobs [1]+ Running /usr/sbin/sshd -D & [email protected]:/# apt-get install net-tools [email protected]:/# netstat -tlnp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 4003/sshd tcp6 0 0 :::22 :::* LISTEN 4003/sshd [email protected]:/# sed -ri ‘s/session required pam_loginuid.so/#session required pam_loginuid.so/g‘ /etc/pam.d/sshd [email protected]:/# mkdir root/.ssh [email protected]:/# vim root/.ssh/authorized_keys [email protected]:/# vim /run.sh #!/bin/bash /usr/sbin/sshd -D [email protected]:/# chmod +x /run.sh [email protected]:/# exit
4、保存镜像
[[email protected] ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 8bfbf48c59f8 ubuntu "/bin/bash" 51 minutes ago Exited (0) 4 seconds ago reverent_lumiere 05c71189c30e ubuntu "/bin/bash" 4 hours ago Exited (0) 4 hours ago wonderful_wright 387d42ee191b busybox "sh" 5 hours ago Exited (2) 5 hours ago priceless_wing d91b7c33a198 training/webapp "python app.py" 17 hours ago Up 17 hours 0.0.0.0:32785->5000/tcp web 7e17a1d0cb21 training/postgres "su postgres -c ‘/..." 17 hours ago Up 17 hours 5432/tcp db [[email protected] ~]# docker commit 8bfb sshd:ubuntu sha256:34aafa7f58cae9f55bab2183f0c14dcc065dcfd3cc772115808e9c30d1680889 [[email protected] ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE sshd ubuntu 34aafa7f58ca 6 seconds ago 263 MB busybox latest c75bebcdd211 2 weeks ago 1.11 MB haproxy latest c481d2544260 3 weeks ago 136 MB liuyongsheng614/test latest c400af73564b 2 months ago 130 MB test latest c400af73564b 2 months ago 130 MB ubuntu latest 0ef2e08ed3fa 3 months ago 130 MB training/webapp latest 6fae60ef3446 2 years ago 349 MB training/postgres latest 6fa973bb3c26 2 years ago 365 MB
5、使用镜像
[[email protected] ~]# docker run -d -p 10022:22 sshd:ubuntu /run.sh d4ad0fcf769edf268854e7b5f1b0e62ed78a52b836cf3b2f4f1a97630835696e [[email protected] ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d4ad0fcf769e sshd:ubuntu "/run.sh" 5 seconds ago Up 3 seconds 0.0.0.0:10022->22/tcp cranky_stonebraker d91b7c33a198 training/webapp "python app.py" 17 hours ago Up 17 hours 0.0.0.0:32785->5000/tcp web 7e17a1d0cb21 training/postgres "su postgres -c ‘/..." 17 hours ago Up 17 hours 5432/tcp db [[email protected] ~]# netstat -tlnp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1416/sshd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2037/master tcp6 0 0 :::32785 :::* LISTEN 10359/docker-proxy tcp6 0 0 :::22 :::* LISTEN 1416/sshd tcp6 0 0 :::10022 :::* LISTEN 20173/docker-proxy [[email protected] ~]# ssh 192.168.20.107 -p 10022 The authenticity of host ‘[192.168.20.107]:10022 ([192.168.20.107]:10022)‘ can‘t be established. ECDSA key fingerprint is c4:7d:d1:44:79:a2:7a:18:27:16:f7:55:47:ed:7c:e7. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added ‘[192.168.20.107]:10022‘ (ECDSA) to the list of known hosts. Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 3.10.0-514.10.2.el7.x86_64 x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage The programs included with the Ubuntu system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. [email protected]:~# ifconfig eth0 Link encap:Ethernet HWaddr 02:42:ac:11:00:04 inet addr:172.17.0.4 Bcast:0.0.0.0 Mask:255.255.0.0 inet6 addr: fe80::42:acff:fe11:4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:47 errors:0 dropped:0 overruns:0 frame:0 TX packets:38 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7349 (7.3 KB) TX bytes:6493 (6.4 KB) 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:1 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
二、使用Dockerfile创建
1、
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