本文档详细介绍了如何在Ubuntu系统中利用Dockerfile创建一个包含常用工具（如iputils-ping、nginx、curl和vim等）的基础开发环境。首先创建Dockerfile目录，并替换apt源为阿里云镜像，接着编写Dockerfile，安装所需软件并暴露SSH端口。然后通过`docker build`命令构建镜像，并用该镜像启动一个名为cct2的测试容器，验证了环境的正确性和可用性。
Ubuntu中Docker通过Dockerfile构建常用的基础环境
创建Dockerfile目录
root@ubuntu:~# mkdir /dockerfile/cct -p
root@ubuntu:~# cd /dockerfile/cct/
编辑更改源为域名源
root@ubuntu:/dockerfile/cct# vim sources.list
root@ubuntu:/dockerfile/cct# cat sources.list
deb http://mirrors.aliyun.com/ubuntu/ trusty mainrestricted 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/ trustymain 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
root@ubuntu:/dockerfile/cct#
构建Dockerfile
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