Dockerfile示例-nginx

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　　l先下载nginx的配置文件 wget http://www.apelearn.com/study_v2/.nginx_conf
　　lvim Dockerfile //内容如下
　　############################################################
　　# Dockerfile to build Nginx Installed Containers
　　# Based on CentOS
　　############################################################
　　# Set the base image to CentOS
　　FROM centos
　　# File Author / Maintainer
　　MAINTAINER aming aming@aminglinux.com
　　# Install necessary tools
　　RUN yum install -y pcre-devel wget net-tools gcc
　　RUN yum install -y zlib zlib-devel make
　　RUN yum install -y openssl-devel
　　l# Install Nginx
　　ADD http://nginx.org/download/nginx-1.8.0.tar.gz .
　　RUN tar zxvf nginx-1.8.0.tar.gz
　　RUN mkdir -p /usr/local/nginx
　　lRUN cd nginx-1.8.0.tar.gz && ./configure --prefix=/usr/local/nginx && make && make install
　　RUN rm -fv /usr/local/nginx/conf/nginx.conf
　　COPY .nginx_conf /usr/local/nginx/conf/nginx.conf
　　# Expose ports
　　EXPOSE 80
　　# Set the default command to execute
　　# when creating a new container
　　ENTRYPOINT /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
　　l创建镜像：
　　ldocker build -t centos_nginx  .
　　ldocker  images 可以看到我们新建的镜像