主要步骤如下：我的系统是CentOS 7.3 64-bitsudo yum install -y yum-utilssudo yum-config-manager –add-repo https://download.docker.com/linux/centos/docker-ce.reposudo yum makecache fastsudo yum -y install do

运行docker run docker/whalesay 会提示没有镜像，然后自动下载镜像创建一个cokerfile mkdir mydockerbuild cd mydockerbuild vi Dockerfile 在docker file 下编辑如下内容 FROM docker/whalesay:latest RUN apt-get -y update && apt-ge

最基本的三个概念engine Docker Engine provides the core Docker technology that enables images and containers 可以理解成就是docker的命令image An image is a filesystem and parameters to use at runtime. It doesn’t have