Dockerfils命令详解：https://www.cnblogs.com/panwenbin-logs/p/8007348.html
以nginx为例：
#-----------dockerfile构建镜像--------
dockerfile包括:
1、基础镜像信息
2、维护者信息
3、镜像操作指令
4、容器启动时执行指令
dockerfile目录：
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#This is My first Dockerfile#Version 1.0#Author: YangYangming#Base imagesFROM centos#MAINTAINERMAINTAINER YangYangming#ADDADD pcre-8.37.tar.gz /usr/local/srcADD nginx-1.17.5.tar.gz /usr/local/src#RUNRUN yum install -y wget gcc gcc-c++ make openssl-develRUN useradd -s /sbin/nologin -M www#WORKDIRWORKDIR /usr/local/src/nginx-1.17.5RUN ./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_ssl_module --with-http_stub_status_module --with-pcre=/usr/local/src/pcre-8.37 && make && make installRUN echo "daemon off;" >> /usr/local/nginx/conf/nginx.confENV PATH /usr/local/nginx/sbin:$PATHEXPOSE 80CMD ["nginx"] |
构建Dcokerfile：
docker build -t nginx-file:v1 .