一、制作docker镜像的步骤
1、启动容器安装软件服务
2、将安装好服务的容器commit提交为镜像
3:、启动新容器来测试新提交的镜像
二、制作支持ssh远程登录的docker镜像
1、启动容器安装软件服务
1、启动容器
[root@luoahong ~]# docker run -it -p 1022:22 --name luoahong4 centos:6.9
2、安装软件openssh-server
[root@0485b9ecd1ad /]# yum install openssh-server -y [root@0485b9ecd1ad /]# /etc/init.d/sshd start Generating SSH2 RSA host key: [ OK ] Generating SSH1 RSA host key: [ OK ] Generating SSH2 DSA host key: [ OK ] Starting sshd: [ OK ] [root@0485b9ecd1ad /]# netstat -lntup 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 118/sshd tcp 0 0 :::22 :::* LISTEN 118/sshd
3、测试是否可以上网
[root@0485b9ecd1ad /]# curl www.baidu.com
<!DOCTYPE html>
<!--STATUS OK--><html> <head><meta http-equiv=content-type content=text/html;charset=utf-8><meta http-equiv=X-UA-Compatible content=IE=Edge><meta content=always name=referrer><link rel=stylesheet type=text/css href=http://s1.bdstatic.com/r/www/cache/bdorz/baidu.min.css><title>鐧惧害涓€涓嬶紝浣犲氨鐭ラ亾</title></head> <body link=#0000cc> <div id=wrapper> <div id=head> <div class="head_wrapper"> <div class="s_form"> <div class="s_form_wrapper"> <div id=lg> <img hidefocus=true src=//www.baidu.com/img/bd_logo1.png width=270 height=129> </div> <form id=form name=f action=//www.baidu.com/s class="fm"> <input type=hidden name=bdorz_come value=1> <input type=hidden name=ie value=utf-8> <input type=hidden name=f value=8> <input type=hidden name=rsv_bp value=1> <input type=hidden name=rsv_idx value=1> <input type=hidden name=tn value=baidu><span class="bg s_ipt_wr"><input id=kw name=wd class="s_ipt" value maxlength=255 autocomplete=off autofocus></span><span class="bg s_btn_wr"><input type=submit id=su value=鐧惧害涓€涓?class="bg s_btn"></span> </form> </div> </div> <div id=u1> <a href=http://news.baidu.com name=tj_trnews class="mnav">鏂伴椈</a> <a href=http://www.hao123.com name=tj_trhao123 class="mnav">hao123</a> <a href=http://map.baidu.com name=tj_trmap class="mnav">鍦板浘</a> <a href=http://v.baidu.com name=tj_trvideo class="mnav">瑙嗛�</a> <a href=http://tieba.baidu.com name=tj_trtieba class="mnav">璐村惂</a> <noscript> <a href=http://www.baidu.com/bdorz/login.gif?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2f%3fbdorz_come%3d1 name=tj_login class="lb">鐧诲綍</a> </noscript> <script>document.write('<a href="http://www.baidu.com/bdorz/login.gif?login&tpl=mn&u='+ encodeURIComponent(window.location.href+ (window.location.search === "" ? "?" : "&")+ "bdorz_come=1")+ '" name="tj_login" class="lb">鐧诲綍</a>');</script> <a href=//www.baidu.com/more/ name=tj_briicon class="bri" style="display: block;">鏇村�浜у搧</a> </div> </div> </div> <div id=ftCon> <div id=ftConw> <p id=lh> <a href=http://home.baidu.com>鍏充簬鐧惧害</a> <a href=http://ir.baidu.com>About Baidu</a> </p> <p id=cp>©2017 Baidu <a href=http://www.baidu.com/duty/>浣跨敤鐧惧害鍓嶅繀璇?/a> <a href=http://jianyi.baidu.com/ class="cp-feedback">鎰忚�鍙嶉�</a> 浜琁CP璇?30173鍙?nbsp; <img src=//www.baidu.com/img/gs.gif> </p> </div> </div> </div> </body> </html>
4、设置远程登录密码
echo 123456|passwd --stdin root
5、远程测试
[root@luoahong ~]# ssh root@192.168.228.134 -p 1022 The authenticity of host '[192.168.228.134]:1022 ([192.168.228.134]:1022)' can't be established. RSA key fingerprint is SHA256:GBs8S1bKbhC5CxVHm+CeJouV5OJtpjes6mr9Dej7UZY. RSA key fingerprint is MD5:32:14:d6:77:c9:60:3b:66:8d:e3:a7:d1:88:d3:0f:fc. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '[192.168.228.134]:1022' (RSA) to the list of known hosts. root@192.168.228.134's password: [root@0485b9ecd1ad ~]#
2、将安装好服务的容器commit提交为镜像
1、提交镜像
[root@luoahong ~]# docker commit luoahong4 centos6-ssh:v1 sha256:e414afbffe052453b38faed463070f4a35663ca1c9f8d64e44e131369ba31630 [root@luoahong ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 0485b9ecd1ad centos:6.9 "/bin/bash" 42 minutes ago Exited (0) 3 minutes ago luoahong4
3:、启动新容器来测试新提交的镜像
[root@luoahong ~]# docker run -d -p 2022:22 centos6-ssh:v1 /usr/sbin/sshd -D 156d80283acf6f884df3589aeca834c38f2d78497e46e6580ce7cdf2b8f0e787 [root@luoahong ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 156d80283acf centos6-ssh:v1 "/usr/sbin/sshd -D" 4 seconds ago Up 3 seconds 0.0.0.0:2022->22/tcp romantic_chandrasekhar 0485b9ecd1ad centos:6.9 "/bin/bash" 42 minutes ago Exited (0) 3 minutes ago luoahong4 [root@luoahong ~]#
注意事项：记得一定要在启动容器的后面加上
/usr/sbin/sshd -D
要不然会出现启动四秒退出3秒
[root@luoahong ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 0485b9ecd1ad centos:6.9 "/bin/bash" 42 minutes ago Exited (0) 3 minutes ago luoahong4
再次测试
[root@luoahong ~]# ssh root@192.168.228.134 -p 2022 The authenticity of host '[192.168.228.134]:2022 ([192.168.228.134]:2022)' can't be established. RSA key fingerprint is SHA256:GBs8S1bKbhC5CxVHm+CeJouV5OJtpjes6mr9Dej7UZY. RSA key fingerprint is MD5:32:14:d6:77:c9:60:3b:66:8d:e3:a7:d1:88:d3:0f:fc. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '[192.168.228.134]:2022' (RSA) to the list of known hosts. root@192.168.228.134's password: Last login: Tue Jan 15 09:16:31 2019 from 192.168.228.134 [root@156d80283acf ~]#
三、制作支持ssh+httpd双服务的镜像
1、启动容器安装软件服务
1、启动容器
[root@luoahong ~]# docker run -it --name luoahong centos:6.9
2、安装软件服务
[root@0d09d3a1591a /]# yum install httpd -y [root@0d09d3a1591a /]# yum install openssh-server -y
3、启动服务设置远程登录密码
[root@0d09d3a1591a /]# /etc/init.d/sshd start Generating SSH2 RSA host key: [ OK ] Generating SSH1 RSA host key: [ OK ] Generating SSH2 DSA host key: [ OK ] Starting sshd: [ OK ] [root@0d09d3a1591a /]# echo 123456|passwd --stdin root Changing password for user root. passwd: all authentication tokens updated successfully.
4、编写容器启动脚本
vi /init.sh #!/bin/bash /etc/init.d/httpd start /usr/sbin/sshd -D
2、将安装好服务的容器commit提交为镜像
docker commit luoahong centos6-ssh-httpd:v1
3、启动新容器来测试新提交的镜像
1、命令行操作
[root@luoahong ~]# docker run -d -p 8080:80 -p 1122:22 centos6-ssh-httpd:v1 /bin/bash /init.sh ea82b95830817f3087b35a6447dd9e62ea697dd6bb0306d0336d946392e03670 [root@luoahong ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ea82b9583081 centos6-ssh-httpd:v1 "/bin/bash /init.sh" 9 seconds ago Up 9 seconds 0.0.0.0:1122->22/tcp, 0.0.0.0:8080->80/tcp stupefied_rosalind 0d09d3a1591a centos:6.9 "/bin/bash" 17 minutes ago Exited (0) 12 seconds ago luoahong 156d80283acf centos6-ssh:v1 "/usr/sbin/sshd -D" 19 minutes ago Up 19 minutes 0.0.0.0:2022->22/tcp romantic_chandrasekhar 0485b9ecd1ad centos:6.9 "/bin/bash" About an hour ago Exited (0) 23 minutes ago
2、浏览器测试截图
3、注意事项
多服务的话需要编写容器脚本，启动命令格式如下
[root@luoahong ~]# docker run -d -p 8080:80 -p 1122:22 centos6-ssh-httpd:v1 /bin/bash /init.sh