server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;
    underscores_in_headers on;

    location / {
        root   /usr/share/nginx/html;
        # index  index.html index.htm;
        try_files $uri $uri/ /index.html =404;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    location ~ /\.ht {
        deny all;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        expires      30d;
        error_log off;
        access_log /dev/null;
    }

    location ~ .*\.(js|css)?$
    {
        expires      12h;
        error_log off;
        access_log /dev/null;
    }
    access_log  /var/log/nginx/access.log  json;

}