在 Beanstalk nodejs 环境中增加 nginx 的 worker_connections答案

【问题标题】：Increasing worker_connections of nginx on Beanstalk nodejs environment在 Beanstalk nodejs 环境中增加 nginx 的 worker_connections
【发布时间】：2021-05-26 08:08:02
【问题描述】：

我正在尝试增加 Beanstalk nodejs 服务器 (Amazon Linux 2) 上我的 nginx 的可能 worker_connections 数量。
我按照文档创建了一个文件.platform/nginx/conf.d/proxy.conf，内容如下：

worker_rlimit_nofile 65536;
events {
  worker_connections  32768;
}

部署时出现错误： [emerg] "worker_rlimit_nofile" directive is not allowed here in /var/proxy/staging/nginx/conf.d/proxy.conf

评论这一行时，我仍然得到： [emerg] "events" directive is not allowed here in /var/proxy/staging/nginx/conf.d/proxy.conf:3

【问题讨论】：

您的扩展名不正确。应该是.platform/nginx/conf.d/proxy.conf
@Marcin 对不起，这只是我的问题中的一个错字，文件名是正确的。仍然出现同样的错误。

标签： amazon-web-services amazon-elastic-beanstalk amazon-linux-2

【解决方案1】：

我认为这些是顶级设置，您必须覆盖主 nginx.conf 文件。您可以通过创建 .platform/nginx/nginx.conf 配置文件来做到这一点。在这种情况下，您可以删除.platform/nginx/conf.d/proxy.conf。

你可以试试下面的.platform/nginx/nginx.conf：

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes auto;
worker_rlimit_nofile 65536;
error_log /var/log/nginx/error.log;                                      
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.         
include /usr/share/nginx/modules/*.conf;
events {
    worker_connections 32768;                                               
}
http {                                                                
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 4096;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    include /etc/nginx/conf.d/*.conf;
    server {
        listen       80;
        listen       [::]:80;
        server_name  _;
        root         /usr/share/nginx/html;
        # Load configuration files for the default server block.                   
        include /etc/nginx/default.d/*.conf;  
        error_page 404 /404.html;        
            location = /40x.html {       
        }
        error_page 500 502 503 504 /50x.html;                                      
            location = /50x.html {       
        }
    }
}

如果这不起作用，您可以通过 ssh 进入您的 EB 实例，检查您的 EB 环境的实际默认 nginx.conf (/etc/nginx/nginx.conf)，复制它并在 .platform/nginx/nginx.conf 中使用。

【讨论】：

谢谢你就是这样。事实上include conf.d/*.conf; 在http 指令中，所以它不能工作。

【解决方案2】：

@marcin 上面的回答是正确的。对 worker_connections 进行更新需要通过 .platform/nginx/nginx.conf 文件进行修改。供其他人参考，截至 2021 年 7 月，AWS 将以下内容用作 Elastic Beanstalk v2 和 Amazon Linux 2 上 nginx.conf 的默认值：

#Elastic Beanstalk Nginx Configuration File

user                    nginx;
error_log               /var/log/nginx/error.log warn;
pid                     /var/run/nginx.pid;
worker_processes        auto;
worker_rlimit_nofile    131435;

events {
    worker_connections  1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    include       conf.d/*.conf;

    map $http_upgrade $connection_upgrade {
        default     "upgrade";
    }

    server {
        listen        80 default_server;
        access_log    /var/log/nginx/access.log main;

        client_header_timeout 60;
        client_body_timeout   60;
        keepalive_timeout     60;
        gzip                  off;
        gzip_comp_level       4;
        gzip_types text/plain text/css application/json application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript;

        # Include the Elastic Beanstalk generated locations
        include conf.d/elasticbeanstalk/*.conf;
    }
}

只需将上述文件添加到.platform/nginx/nginx.conf 并将worker_connections 值修改为所需值即可。 AWS docs are lacking on this currently，但我已要求他们进行进一步更新。

【讨论】：