nginx在docker容器中自动生成配置文件

docker run -d -p 80:80 -e xxx=xx 镜像名称 镜像中脚本路径

#!/bin/bash

#从环境变量里面获取lt开头，为了与其他环境变量区别开，例如lt_analysis=172.17.0.1:8083
result=""
for a in $(env | grep ^lt)
do
 OLD_IFS="$IFS"
 IFS="_"
 arr=($a)
 b=${arr[1]}
 IFS="="
 arr=($b)
 IFS="$OLD_IFS"
 result="${result}
  location /${arr[0]}/ {
    proxy_pass  http://${arr[1]}/${arr[0]}/;
    proxy_connect_timeout 90;
    proxy_send_timeout 90;
    proxy_read_timeout 90;
  }"
done
#将nginx配置文件中nginx_conf中置换成变量result
sed -i "s|nginx_conf|$(echo ${result})|g" /etc/nginx/nginx.conf
cd /usr/sbin
./nginx

http {
  ...
  
  server {
    ...

    location / {
      root  html;
      index index.html index.htm;
    }

    nginx_conf

    #error_page 404       /404.html;
    ...

FROM centos

ENV NGINX_VERSION 1.10.3
ENV OPENSSL_VERSION 1.0.2k
ENV PCRE_VERSION 8.40
ENV ZLIB_VERSION 1.2.11
ENV BUILD_ROOT /usr/local/xx/nginx

# 为了减小最终生成的镜像占用的空间，这里没有执行yum update命令，可能不是好的实践
# 为了加快构建速度，这里使用了163的安装源
#RUN yum -y update \

RUN yum -y install curl \

  && mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup \

  && curl http://mirrors.163.com/.help/CentOS7-Base-163.repo -o /etc/yum.repos.d/CentOS7-Base-163.repo \ 
  && yum -y install gcc gcc-c++ make perl zip unzip \

  && mkdir -p $BUILD_ROOT \

  && cd $BUILD_ROOT \

  && curl https://ftp.pcre.org/pub/pcre/pcre-$PCRE_VERSION.zip -o $BUILD_ROOT/pcre-$PCRE_VERSION.zip \

  && curl https://www.openssl.org/source/openssl-$OPENSSL_VERSION.tar.gz -o $BUILD_ROOT/openssl-$OPENSSL_VERSION.tar.gz \

  && curl http://www.zlib.net/zlib-$ZLIB_VERSION.tar.gz -o $BUILD_ROOT/zlib-$ZLIB_VERSION.tar.gz \

  && curl https://nginx.org/download/nginx-$NGINX_VERSION.tar.gz -o $BUILD_ROOT/nginx-$NGINX_VERSION.tar.gz \

  && tar vxzf nginx-$NGINX_VERSION.tar.gz \

  && unzip pcre-$PCRE_VERSION.zip \

  && tar vxfz zlib-$ZLIB_VERSION.tar.gz \

  && tar vxfz openssl-$OPENSSL_VERSION.tar.gz \

  && cd nginx-$NGINX_VERSION \

  && BUILD_CONFIG="\

    --prefix=/etc/nginx \

    --sbin-path=/usr/sbin/nginx \

    --conf-path=/etc/nginx/nginx.conf \

    --error-log-path=/var/log/nginx/error.log \

    --http-log-path=/var/log/nginx/access.log \

    --pid-path=/var/run/nginx.pid \

    --lock-path=/var/run/nginx.lock \

    --http-client-body-temp-path=/var/cache/nginx/client_temp \

    --http-proxy-temp-path=/var/cache/nginx/proxy_temp \

    --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp \

    --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp \

    --http-scgi-temp-path=/var/cache/nginx/scgi_temp \

    --with-openssl=$BUILD_ROOT/openssl-$OPENSSL_VERSION \

    --with-pcre=$BUILD_ROOT/pcre-$PCRE_VERSION \

    --with-zlib=$BUILD_ROOT/zlib-$ZLIB_VERSION \

    --with-http_ssl_module \

    --with-http_v2_module \ 
    --with-threads \

    " \

  && mkdir -p /var/cache/nginx \

  && ./configure $BUILD_CONFIG \

  && make && make install \

  && rm -rf $BUILD_ROOT \

  && yum -y remove gcc gcc-c++ make perl zip unzip \

  && yum clean all

#替换nginx默认文件
COPY nginx.conf /etc/nginx/
#添加自动生成配置文件的shell脚本
COPY 脚本名称 /root/

#暴露端口
EXPOSE 80 443

CMD ["nginx", "-g", "daemon off;"]

#user nobody;
worker_processes 1;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid    logs/nginx.pid;
daemon off;  //这里添加，关闭后台运行
events {
  worker_connections 1024;
}


http {