ActionCable Rails 5(Passenger) - 失败:WebSocket握手期间出错:意外响应代码:404

Question

我正在尝试将ActionCable和Rails 5部署到生产服务器(DigitalOcean).我已按照Gorails视频中提到的所有步骤进行操作:https://gorails.com/episodes/deploy-actioncable-and-rails-5

该应用程序使用Phusion Passenger + Nginx + Capistrano进行部署.

当我尝试在生产中检查我的网站时,我在浏览器的控制台上收到了此错误:

WebSocket connection to 'ws://139.59.175.34/cable' failed: Error during WebSocket handshake: Unexpected response code: 404

这些是我的设置:

在/ etc/nginx的/启用的站点 - /默认

server {
        listen 80;
        listen [::]:80 ipv6only=on;

        server_name my_server_domain;
        passenger_enabled on;
        rails_env    production;
        root         /home/deploy/my_app_domain/current/public;

        # ActionCabel config (disable this if u r not using it)
        location /cable {
           passenger_app_group_name actioncable_websocket;
           passenger_force_max_concurrent_requests_per_process 0;
        }

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

production.rb

config.action_cable.url = "/cable"
config.action_cable.allowed_request_origins = ["http://139.59.175.34"]

cable.js

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

  App.cable = ActionCable.createConsumer("/cable");

}).call(this);

---

我试图将ActionCable配置更改config/production.rb为:

  config.action_cable.url = [/ws:\/\/*/, /wss:\/\/*/]
  config.action_cable.allowed_request_origins = [/http:\/\/*/, /https:\/\/*/]

但仍然没有运气.

---

我也查看了服务器上的production.log,这是记录的错误:

WebSocket error occurred: One or more reserved bits are on: reserved1 = 1, reserved2 = 0, reserved3 = 0

---

更新:

以下是服务器上的防火墙设置:

Answer 1

最后我找到了我的问题的答案。原来我的生产服务器上没有安装redis。所以我只需要安装 redis，现在一切都很好！

要检查服务器上是否安装了redis，请使用以下命令：

redis-cli

如果出现 redis 控制台，则一切就绪。如果出现错误/警告，您可以按照以下步骤安装并运行redis：

1. sudo apt install redis-server
2. redis-server

希望能帮助到你！