如何从 EB 响应中删除标头

Posted 2023-03-04

【中文标题】如何从 EB 响应中删除标头

【英文标题】：How to remove header from EB response

【发布时间】：2018-06-11 10:19:45

【问题描述】：

我正在尝试从 EB 服务中删除响应标头。

EB 配置： 64bit Amazon Linux 2017.03 v2.7.1 running Docker 17.03.1-ce

运行：FROM python:3.6.1

也使用flask

我将以下代码添加到flask：

def after_request_callback(response):
    response.headers["server"] = "SomeNonFingerprintValue"
    return response


def create_application():
    application = Flask(__name__)
    application.after_request(after_request_callback)

当我在本地运行时这工作正常，但当我部署到 EB 时，我不断获得指纹值：server → nginx/1.10.3

知道如何删除\修改已部署服务的此值吗？

【问题讨论】：

可能 nginx 正在覆盖服务器标头。如果您可以修改 nginx 配置 this answer 可能会有所帮助。

是的，看到了，不确定它是否可能以及如何为 EB...问题的一部分

【参考方案1】：

在项目的根目录中创建一个“.ebextensions”文件夹 添加一个名为“nginx.config”的文件（可以调用任何名称，只要它以 .config 结尾即可）

将以下内容放入文件中（注意 proxy_set_header 行）：

files:
"/tmp/000_my_nginx_config.conf":
mode: "000644"
owner: root
group: root
content: |
  upstream nodejs 
      server 127.0.0.1:8081;
      keepalive 256;
  

  log_format combined_no_query '$remote_addr - $remote_user [$time_local] '
    '"$uri" $status $body_bytes_sent '
    '"$http_referer" "$http_user_agent"';

  server 
    listen 8080;

    if ($time_iso8601 ~ "^(\d4)-(\d2)-(\d2)T(\d2)") 
        set $year $1;
        set $month $2;
        set $day $3;
        set $hour $4;
    

    access_log /var/log/nginx/healthd/application.log.$year-$month-$day-$hour healthd;
    access_log  /var/log/nginx/access.log  combined_no_query;

    location / 
        proxy_pass  http://nodejs;
        proxy_set_header   Connection "";
        proxy_http_version 1.1;
        proxy_set_header        Host            $host;
        proxy_set_header        X-Real-IP       $remote_addr;
        proxy_set_header        X-Forwarded-For 
        proxy_set_header        Server NonFingerprint;
    

    gzip on;
    gzip_comp_level 4;
    gzip_types text/html text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

  

  "/tmp/45_replace_config.sh":
mode: "000644"
owner: root
group: root
content: |
  #! /bin/bash
  cp -rfv /tmp/000_my_nginx_config.conf /etc/nginx/conf.d/00_elastic_beanstalk_proxy.conf

container_commands:
   00_appdeploy_rewrite_hook:
command: cp -v /tmp/45_replace_config.sh /opt/elasticbeanstalk/hooks/appdeploy/enact
  01_appdeploy_rewrite_hook:
command: cp -v /tmp/45_replace_config.sh /opt/elasticbeanstalk/hooks/configdeploy/enact
  02_rewrite_hook_perms:
command: chmod 755 /opt/elasticbeanstalk/hooks/appdeploy/enact/45_replace_config.sh /opt/elasticbeanstalk/hooks/configdeploy/enact/45_replace_config.sh
  03_rewrite_hook_ownership:
command: chown root:users /opt/elasticbeanstalk/hooks/appdeploy/enact/45_replace_config.sh /opt/elasticbeanstalk/hooks/configdeploy/enact/45_replace_config.sh