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无法建立 wss 连接

tag-icon • tag-icon nginx websocket wss
无法建立 wss 连接

我有一个与 Asp.Net core API 对话的 React 应用程序。它们都部署在我的虚拟机上的 Docker 上。已安装并配置了 Nginx 来解析应用程序的域名（thesis.uno - 用于 React 应用程序，api.thesis.uno - 用于 asp.net core api）

我使用 SignalR 为我的应用添加了聊天支持，但当 React 尝试通过 api.thesis.uno 建立 wss 连接时失败 在此处输入图片描述

当我用虚拟机 IP 和端口替换 api 域名时，一切似乎都正常运行，这意味着问题出在 Nginx 配置上。

在此处输入图片描述

我尝试用谷歌搜索这个问题，但似乎没有解决方案可以帮助我（https://stackoverflow.com/questions/48300288/signalr-in-asp-net-core-behind-nginx，https://stackoverflow.com/questions/12102110/nginx-to-reverse-proxy-websockets-and-enable-ssl-wss）

我的 nginx 配置：

client_max_body_size 64M;

upstream backend {
    # enable sticky session based on IP
    ip_hash;

    server localhost:5000;
  }

server {
    root /var/www/thesis.uno/html; # Directly serves anything in the Rails public folder
    index index.html index.htm index.nginx-debian.html;
    server_name thesis.uno www.thesis.uno; # managed by Certbot

    location / {
        proxy_pass http://localhost:5001;
        proxy_set_header Host $host;
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/thesis.uno/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/thesis.uno/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}

server {
    if ($host = www.thesis.uno) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = thesis.uno) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    listen 80 ;
    server_name thesis.uno www.thesis.uno;
    return 404; # managed by Certbot
}

server {
    server_name api.thesis.uno www.api.thesis.uno;

    # all other requests
    location / {
        proxy_pass http://backend;
        proxy_set_header Host $host;
    }

    # web socket chat requests
    location /api/chat {
        proxy_pass http://backend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $http_connection;
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/api.thesis.uno/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/api.thesis.uno/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}

server {
    if ($host = www.api.thesis.uno) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = api.thesis.uno) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    listen 80;
    server_name api.thesis.uno www.api.thesis.uno;
    return 404; # managed by Certbot
}

更新：

原来 nginx 有一个日志文件，似乎 nginx 无法正确重定向请求，请求时给出 404

在此处输入图片描述

答案1

这是否可能与需要粘性会话以及此评论中提到的“随机 404”有关https://github.com/dotnet/AspNetCore.Docs/issues/10827#issuecomment-631088853

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