添加ssh服务构建新镜像-docker commit 方式
１:docker commit构建自定义镜像---一般不推荐使用这种方式构建新镜像
1:ubuntu基础镜像下载 ubuntu@ubuntu:~$ docker pull ubuntu:18.04 2:运行镜像，启动一个容器 ubuntu@ubuntu:~$ docker run -it ubuntu:18.04 /bin/bash root@92cf48876d4c:/# 3:配置软件源 #1:更新 root@92cf48876d4c:/# apt-get update #2:备份 root@92cf48876d4c:/# cp /etc/apt/sources.list /etc/apt/sources.list.bak #3:安装vim.net-tools root@92cf48876d4c:/# apt-get install vim net-tools #4:将/etc/apt/sources.list下面的内容替换成阿里源 deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse #5:更新 root@92cf48876d4c:/# apt-get update 4:安装和配置ssh服务 #1:服务端安装 root@92cf48876d4c:/# apt-get install openssh-server #2:要正常启动SSH服务，所以手动创建/var/run/sshd目录 root@92cf48876d4c:/# mkdir -p /var/run/sshd #3:启动sshd服务 root@92cf48876d4c:~# /usr/sbin/sshd -D & [1] 4122 #4：取消pam登录限制 root@92cf48876d4c:~# sed -ri 's/session required pam_loginuid.so/#&/g' /etc/pam.d/sshd root@92cf48876d4c:~# cat /etc/pam.d/sshd | grep pam_loginuid.so #session required pam_loginuid.so #5:配置登录秘钥 １:主机(client)生成公钥 ubuntu@ubuntu:~$ ssh-keygen -trsa Generating public/private rsa key pair. Enter file in which to save the key (/home/ubuntu/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/ubuntu/.ssh/id_rsa. Your public key has been saved in /home/ubuntu/.ssh/id_rsa.pub. The key fingerprint is: SHA256:cCJNE3EeRpucmyTAN4tJ1diGO9TVuaNJ4LkPsJisMOE ubuntu@ubuntu The key's randomart image is: +---[RSA 3072]----+ | ...*X=... . | | o+***= o | | ..==*Oo . | |. o.=*oo. o | |.. . o +So o . | |oE + . o o | | o . o | | . . | | | +----[SHA256]-----+ 一直敲回车就行了 ２：在容器中(server)中创建/root/.ssh目录 root@92cf48876d4c:~# mkdir /root/.ssh ３：将client的公钥复制到server的authorized_keys文件中 ubuntu@ubuntu:~$ cat /home/ubuntu/.ssh/id_rsa.pub ssh-rsa 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 ubuntu@ubuntu root@92cf48876d4c:~# vi /root/.ssh/authorized_keys root@92cf48876d4c:~# cat /root/.ssh/authorized_keys ssh-rsa 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 ubuntu@ubuntu 6:创建自启动的脚本文件 root@92cf48876d4c:~# vi /run.sh root@92cf48876d4c:~# cat /run.sh #! /bin/bash /usr/sbin/sshd -D root@92cf48876d4c:~# chmod a+x /run.sh 7:最后退出容器 root@92cf48876d4c:~# exit exit 8:docker commit 保存为一个新镜像 ubuntu@ubuntu:~$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 92cf48876d4c ubuntu:18.04 "/bin/bash" About an hour ago Exited (0) 2 minutes ago sad_kilby ubuntu@ubuntu:~$ docker commit 92c sshd:ubuntu sha256:3475b858b5b3f822bbec87395f19206ff4d3a64540fba948bd58a32aad237bc6 ubuntu@ubuntu:~$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE sshd ubuntu 3475b858b5b3 21 minutes ago 209MB ubuntu 18.04 775349758637 3 weeks ago 64.2MB training/webapp latest 6fae60ef3446 4 years ago 349MB 9:使用sshd:ubuntu镜像,添加端口映射10022-->22 ubuntu@ubuntu:~$ docker run -p 10022:22 -d sshd:ubuntu /run.sh cb3b9c80c3b6049a20832a0772b9c9f5ab3815a5c18d7b1e57c66b2b1af8b45b ubuntu@ubuntu:~$ docker ps -al CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES cb3b9c80c3b6 sshd:ubuntu "/run.sh" 21 minutes ago Up 21 minutes 0.0.0.0:10022->22/tcp mystifying_clarke 9:在宿主机登录容器 ubuntu@ubuntu:~$ ssh root@172.17.0.1 -p 10022 Welcome to Ubuntu 18.04.3 LTS (GNU/Linux 5.3.0-23-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage This system has been minimized by removing packages and content that are not required on a system that users do not log into. To restore this content, you can run the 'unminimize' command. 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. root@cb3b9c80c3b6:~# ls -l total 0 root@cb3b9c80c3b6:~# ls -al /root/ total 44 drwx------ 1 root root 4096 Nov 26 03:09 . drwxr-xr-x 1 root root 4096 Nov 26 02:52 .. -rw------- 1 root root 1215 Nov 26 02:48 .bash_history -rw-r--r-- 1 root root 3106 Apr 9 2018 .bashrc drwx------ 2 root root 4096 Nov 26 03:09 .cache -rw-r--r-- 1 root root 148 Aug 17 2015 .profile drwxr-xr-x 2 root root 4096 Nov 26 02:22 .ssh -rw------- 1 root root 8614 Nov 26 02:24 .viminfo root@cb3b9c80c3b6:~# ubuntu@ubuntu:~$ ssh root@192.168.43.97 -p 10022 Welcome to Ubuntu 18.04.3 LTS (GNU/Linux 5.3.0-23-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage This system has been minimized by removing packages and content that are not required on a system that users do not log into. To restore this content, you can run the 'unminimize' command. Last login: Tue Nov 26 03:11:06 2019 from 192.168.43.97 root@cb3b9c80c3b6:~# 格式：ssh 远程用户root@本地主机ip -p 10022 都可以连上容器