Nginx配置反向代理不成功的原因(Docker安装版)

问题背景

在linux服务器中使用docker下载了Nginx，然后根据网上的教程来配置反向代理的时候发现80端口无法访问

server块的配置

server {
    listen       80;
    server_name 127.0.0.1  ;

    #access_log  /var/log/nginx/host.access.log  main;

    location / {
		proxy_pass http://127.0.0.1:8080;
        # index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /