docker file

容器变为镜像
创建这个镜像
[root@localhost~]# docker create --name myxudong -it docker.io/java /bin/bash
98d030d2271ed262904af36e115f07dd5ea56fca2a1d7cf02ffed816fbdd7a96
进入这个镜像，在容器内创建文件
[root@localhost ~]# docker exec -it98d030d2271e /bin/bash
root@98d030d2271e:/# mkdir xudong
root@98d030d2271e:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var xudong
root@98d030d2271e:/# exit
exit
将容器变成镜像为：bathroom
[root@localhost ~]# docker commit98d030d2271e bathroom
068bfde81f1e87930eae4f7b07f3e3c65fd6ec4a04eec06f2781d1f14ec7a75f
运行bathroom 这个容器进程查看。发现有:xudong 这个文件。
[root@localhost ~]# docker run -it bathroomls
Usage of loopback devices is stronglydiscouraged for production use. Either use `--storage-opt dm.thinpooldev` oruse `--storage-opt dm.no_warn_on_loop_devices=true` to suppress this warning.
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var xudong
[root@localhost ~]#

容器打包，发布为镜像，镜像变为容器
[root@localhost~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5dc149936c54 bathroom "ls" 39 minutes ago Exited (0) 39 minutes ago agitated_stallman
98d030d2271e docker.io/java "/bin/bash" 44 minutes ago Up 43 minutes myxudong
[root@localhost ~]# docker export98d030d2271e >xudong_test.tar
[root@localhost ~]# cat xudong_test.tar |docker import - test/centos:v1.0
beb815f9e49e0d09ebadbcbdbfa1e603d0ee604225039770db2e13806130a237
[root@localhost~]# docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
test/centos v1.0 beb815f9e49e 2 minutes ago 811.2 MB
bathroom latest 068bfde81f1e 47 minutes ago 817.5 MB
docker.io/centos latest 0f73ae75014f 9 days ago 172.3 MB
<none> <none> 5d9d413283ba 3 weeks ago 116.8 MB
docker.io/java latest 2f5a61e35ea4 3 weeks ago 817.5 MB
docker.io/jdeathe/centos-ssh-mysql latest 4d49b9f0f5ef 6weeks ago 317.4 MB
docker.io/jdeathe/centos-ssh latest eebfc872609c 9 weeks ago 238.1 MB
docker.io/jdeathe/centos-ssh-apache-php latest 05c259583efe 9 weeks ago 287.7 MB

[root@localhost ~]# docker create --nametest_xudong -it beb815f9e49e /bin/bash
31c00942aee17c93fc50b99c6da5c229241704b64b455b69aed15f6c1581399e

[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
31c00942aee1 beb815f9e49e "/bin/bash" 9 seconds ago test_xudong
5dc149936c54 bathroom "ls" 51 minutes ago Exited (0) 51 minutes ago agitated_stallman
98d030d2271e docker.io/java "/bin/bash" 56 minutes ago Up 56 minutes myxudong

启动容器
[root@localhost ~]# docker start31c00942aee1
31c00942aee1

进入容器
[root@localhost ~]# docker exec -ti31c00942aee1 /bin/bash
root@31c00942aee1:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var xudong
root@31c00942aee1:/#

[root@localhost ~]# docker run --nameovcer_the_container -i -t ubuntu /bin/bash
root@1ce9f640478d:/#
上面的命令将会创建一个名为ovcer_the_container的容器。对于一个合法的容器的名称来说只可以包括以下字符：小写字母a~z、大写字母A-Z、数字0～9、下划线、圆点、横线。
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8c342c0c275c ubuntu:latest "/bin/bash" 26 minutes ago Exited (0) 5 minutes ago sharp_bohr

8c342c0c275c：代表容器的ID，
ubuntu:latest ：创建容器的镜像
"/bin/bash"　　：容器最后执行的命令
26 minutes ago ：创建时间
Exited (0) 5 minutes　：容器退出的状态
sharp_bohr 　　　　：容器的名称

[root@localhost dockerfile]# cat Dockerfile
#xudong 20150918
#version 0.0.1
FROM 3b671edd9707
MAINTAINER frank"hexudong@iwgame.com"

RUN yum -yinstall nginx php-*
CMD systemctl start nginx.service
CMD systemctl start php.service
EXPOSE 80
EXPOSE 9000
[root@localhost dockerfile]# docker build-t xudong/nginx_php .

本文出自 “晴空” 博客，谢绝转载！