之前我们说过通过Docker pull来下载Images创建容器，这一次我们来聊下如何通过DockerFile创建Images再创建容器，Dockerfile也是Docker中的重点，使用DockerFile能够更加便捷轻量的存储标准化环境，也是环境管理的重要手段，可以将一些平常并不是经常使用的中间件环境做成DockerFile储存起来
以下就是今天所要说DockerFile涉及的环境：
、
DockerFile简易示意图：
1、 直接上正菜，登陆到DockerHost，创建一个文件叫做VMCDockerFile01：
2、 编辑该文件。并写入以下代码：
FROM vmctest:v1
3、 这里就用到了DockerFile里面的第一个参数，From，From参数主要用来申明这个DockerFile所创建的Container基于哪个镜像
FROM <image>:<tag> 或者 FROM <image> 或者FROM <image>@<digest>
4、 写入后进行保存即可：
5、 可以使用Docker build –f VMCDockerFile01 .调用DockerFile创建Images：
6、 当然，你也可以用build的-t参数（如：docker build -t vmctest:v2 .）来作为创建新Image的命令，不过这要求你的Dockerfile文件必须命名为dockerfile：
7、 如果需要声明作者或者备注的话，就需要一个MAINTAINER参数，试着在dockerfile里加入maintainer参数。就可以完成信息的录入，该信息不会对镜像本身产生任何影响：
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