使用端口80的AWS Elastic Beanstalk上的WebSocket问题 [英] WebSocket Issue on AWS Elastic Beanstalk Using Port 80
问题描述
我将一个node.js应用程序从Heroku迁移到在端口80上使用WebSockets的AWS Elastic Beanstalk.WebSockets在AWS Elastic Beanstalk上返回301错误，但在Heroku上不会。
要初始化WebSocket连接，请点击创建新笔记。
AWS Beanstalk
http：// default-environment .psgekxtsbd.us-west-2.elasticbeanstalk.com /
Heroku
https://murmuring-shelf-40601.herokuapp.com/
这就是我在服务器上设置了WebSocket。
const express = require（'express'）;
const app = express（）;
require（express-ws）（app）;
app.post（/ service / create-account /，（req，res）=> {/ * code in here * /}）;
app.ws（'/：noteId /'，函数（ws，req）{/ *代码在这里* /}）;
const port = process.env.PORT || 3000;
app.listen（port）;
我曾尝试在 .ebextensions 文件夹就像
文件：
/etc/nginx/conf.d/01_websockets.conf：
模式：000644
所有者：root
组：root
内容：
上游nodejs {
服务器127.0.0.1:80;
keepalive 256;
}
服务器{
听80;
large_client_header_buffers 8 32k;
位置/ {
proxy_set_header X-Real-IP $ remote_addr;
proxy_set_header X-Forwarded-For $ proxy_add_x_forwarded_for;
proxy_set_header主机$ http_host;
proxy_set_header X-NginX-Proxy true;
＃防止502错误的网关错误
proxy_buffers 8 32k;
proxy_buffer_size 64k;
proxy_pass http：// nodejs;
proxy_redirect off;
＃启用WS支持
proxy_http_version 1.1;
proxy_set_header升级$ http_upgrade;
proxy_set_header连接升级;
code
文件：
/etc/nginx/conf.d/websocketupgrade.conf：
模式：000755
所有者： root
组：root
内容：|
proxy_set_header升级$ http_upgrade;
proxy_set_header连接升级;
当我添加这些配置时，HTML无法加载错误 ERR_NAME_NOT_RESOLVED 。以下是该网址 http://websocketsissue.us-west-2.elasticbeanstalk.com/
我使用Node.js的预定义配置将我的弹性beanstalk环境设置为Web服务器环境。我没有添加额外的资源。
有没有办法让WebSockets使用AWS Elastic Beanstalk在端口80上工作？
更新
我能够使单实例环境工作，但不是负载平衡的自动扩展环境。
为了让单实例工作，我将以下文件添加到 .ebextensions
container_commands：
01_nginx_websocket_support：
command：|
sed -i'/ \s * proxy_set_header \s * Connection / c \
proxy_set_header升级$ http_upgrade; \
proxy_set_header连接升级; \
'/tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf
解决方案我在这里找到答案的一部分， https://scopestar.com/blog/aws/elasticbeanstalk/websockets/2016/10/21/enable-websockets-on-elasticbeanstalk-nginx-proxy.html
我在 .ebextensions 文件夹中添加了一个文件，其中包含以下内容并将其固定为单一实例环境。
container_commands：
01_nginx_websocket_support：
command：
sed -i'/ \s * proxy_set_header \s * Connection / c \
proxy_set_header升级$ http_upgrade; \
proxy_set_header连接升级; \
'/tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf
到让WebSocket在负载均衡的自动扩展环境中工作，我还需要执行以下操作：
- 转至EC2控制面板
li>
找到Elastic Beanstalk项目创建的负载均衡器
右键单击负载均衡器并单击编辑侦听器
>将负载均衡器协议从HTTP更改为TCP端口80并保存更改
I am migrating a node.js app from Heroku to AWS Elastic Beanstalk that uses WebSockets on port 80. The WebSockets are returning a 301 error on AWS Elastic Beanstalk, but not on Heroku.
To initialize a WebSocket connection click Create a new note.
AWS Beanstalk
http://default-environment.psgekxtsbd.us-west-2.elasticbeanstalk.com/
Heroku
https://murmuring-shelf-40601.herokuapp.com/
This is how I am setting up the WebSockets on the server.
const express = require('express');
const app = express();
require("express-ws")(app);
app.post("/service/create-account/", (req, res)=> {/*code in here*/});
app.ws('/:noteId/', function (ws, req) {/*code in here*/});
const port = process.env.PORT || 3000;
app.listen(port);
I have tried adding different configurations in the .ebextensions folder like,
files:
"/etc/nginx/conf.d/01_websockets.conf" :
mode: "000644"
owner: root
group: root
content : |
upstream nodejs {
server 127.0.0.1:80;
keepalive 256;
}
server {
listen 80;
large_client_header_buffers 8 32k;
location / {
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;
proxy_set_header X-NginX-Proxy true;
# prevents 502 bad gateway error
proxy_buffers 8 32k;
proxy_buffer_size 64k;
proxy_pass http://nodejs;
proxy_redirect off;
# enables WS support
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
}
And
files:
"/etc/nginx/conf.d/websocketupgrade.conf" :
mode: "000755"
owner: root
group: root
content: |
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
When I add these configurations the HTML fails to load with the error ERR_NAME_NOT_RESOLVED. Here's that URL http://websocketsissue.us-west-2.elasticbeanstalk.com/
I setup my elastic beanstalk environment as a Web Server Environment using the predefined configuration for Node.js. I did not add any additional resources.
Is there anyway to get WebSockets to work on port 80 using AWS Elastic Beanstalk?
Update
I was able to get the single instance environment to work, but not the load balanced, auto scaling environment.
To get the single instance to work I added the following file to .ebextensions
container_commands:
01_nginx_websocket_support:
command: |
sed -i '/\s*proxy_set_header\s*Connection/c \
proxy_set_header Upgrade $http_upgrade;\
proxy_set_header Connection "upgrade";\
' /tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf
解决方案 I found part of the answer here, https://scopestar.com/blog/aws/elasticbeanstalk/websockets/2016/10/21/enable-websockets-on-elasticbeanstalk-nginx-proxy.html
I added a file in the .ebextensions folder with the following content and that fixed it for single instance environments.
container_commands:
01_nginx_websocket_support:
command: |
sed -i '/\s*proxy_set_header\s*Connection/c \
proxy_set_header Upgrade $http_upgrade;\
proxy_set_header Connection "upgrade";\
' /tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf
To get the WebSockets to work on the load balanced, auto scaling environment I needed to do the following in addition
- Go to the EC2 Dashboard
- Find the Load Balancer that the Elastic Beanstalk project created
- Right click on the Load Balancer and click Edit listener
- Change the Load Balancer Protocol from HTTP to TCP for port 80 and save changes
这篇关于使用端口80的AWS Elastic Beanstalk上的WebSocket问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
