Question

我最近将我的rails项目从Rails4切换到5.0.0.beta3以使用了很棒的ActionCable。

我的ActionCable服务器在unicorn中运行。在开发中一切正常。在生产中我有

Started GET "/cable" for xxx.xxx.xxx.xxx at 2016-03-28 18:06:38 +0300
Started GET "/cable/" [WebSocket] for xxx.xxx.xxx.xxx at 2016-03-28 18:06
Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
Registered connection (189772ff-6229-48f1-ae7f-d9a96ad3a6c3)
Finished "/cable/" [WebSocket] for xxx.xxx.xxx.xxx at 2016-03-28 18:06:35

此消息在循环中一次又一次地重复。

我在stackoverflow上尝试了很多选项来处理这个问题，但没有任何帮助。我的nginx配置：

 upstream unicorn {
   server unix:/tmp/unicorn.my_app.sock fail_timeout=0;
 }

 server {
   server_name www.my_app.com;
   return 301 $scheme://my_app.com$request_uri;
 }

 server {
   listen 80 default deferred;
   server_name my_app.com;
   root /var/www/my_app/current/public;

   location ^~ /assets/ {
     gzip_static on;
     expires max;
     add_header Cache-Control public;
   }

   try_files $uri/index.html $uri @unicorn;
   location @unicorn {
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header Host $http_host;
     proxy_redirect off;
     proxy_pass http://unicorn;
   }

   location /cable {
     proxy_pass http://unicorn/cable;
     proxy_http_version 1.1;
     proxy_set_header Upgrade websocket;
     proxy_set_header Connection Upgrade;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   }

   error_page 500 502 503 504 /500.html;
   keepalive_timeout 5;
 }

为了确保允许请求，我暂时在初始化程序中使用此代码： ActionCable.server.config.disable_request_forgery_protection = true

我的cable.coffee文件

 @App ||= {}
 App.cable = ActionCable.createConsumer "/cable"

我的config/cable.yml文件

production:
 adapter: redis
 url: redis://localhost:6379/1

我对这个问题没那么有经验，所以任何帮助都会很棒。

Answer 1

在location /cable部分需要添加一行proxy_set_header Host $http_host;

应该是：

location /cable {
     proxy_pass http://unicorn/cable;
     proxy_http_version 1.1;
     proxy_set_header Upgrade websocket;
     proxy_set_header Connection Upgrade;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header Host $http_host;
   }

Answer 2

我实施了rack-timeout。设置正确的超时纠正了我的问题。设置这些变量的正确方法是在config.ru使用语句中，如下所示：

use Rack::Timeout, service_timeout: 5

Answer 3

这是我用于我的网站的配置，它似乎工作正常（Rails 5 + Nginx + Unicorn + Capistrano）。您在代码段中看到的内容来自h5bp/server-configs-nginx，但我认为这可能是您的配置不起作用的原因。

upstream example_app {
  server unix:/home/username/www/example.com/current/tmp/sockets/unicorn.example.com.sock fail_timeout=0;
}

server {
  listen 80;
  server_name example.com www.example.com;

  return 301 https://example.com$request_uri;
}

server {
  listen 443 ssl;
  server_name www.example.com;

  include h5bp/directive-only/ssl.conf;
  ssl_certificate /etc/letsencrypt/live/www.example.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/www.example.com/privkey.pem;

  return 301 https://example.com$request_uri;
}

server {
  listen 443 ssl;
  server_name example.com;

  include h5bp/directive-only/ssl.conf;
  ssl_certificate /etc/letsencrypt/live/www.example.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/www.example.com/privkey.pem;

  root /home/username/www/example.com/current/public;

  # Set maximum request body size for uploads
  client_max_body_size 25m;

  try_files $uri/index.html $uri @unicorn;
  location @unicorn {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-Proto https;
    proxy_redirect off;
    proxy_pass http://example_app;
  }

  location /cable {
    proxy_pass http://example_app;
    proxy_http_version 1.1;
    proxy_set_header Upgrade websocket;
    proxy_set_header Connection Upgrade;

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-Proto https;
    proxy_redirect off;
  }

  access_log /var/log/nginx/example.com/access.log;
  error_log /var/log/nginx/example.com/error.log;

  charset utf-8;
  server_tokens off;

  error_page 404 /404.html;

  include h5bp/basic.conf;
}

cable.yml

production:
  adapter: redis
  url: redis://localhost:6379/1

cable.js

//= require action_cable
//= require_self
//= require_tree ./channels

(function() {
  this.App || (this.App = {});

  App.cable = ActionCable.createConsumer();

}).call(this);

如何在生产中使用Nginx和Unicorn配置ActionCable？

3 个答案: