C# Nginx代理502坏网关；连接到上游时，没有带电的上游；在ASP.NET应用程序中；码头工人 有什么问题？

当我向基本应用程序端口发送请求时，一切正常

例如：

http://my.domain.dot:5000/Api/V1/Application/GetAllApplications

但当我将其发送到nginx代理域时，我看到：

https://my.domain.dot/Api/V1/Application/GetAllApplications

502坏网关

在nginx代理日志中：

连接到上游时，没有活跃的上游

Nginx代理的Docker编写文件 网络列表 C#Asp.NET应用程序Dockerfile C#Asp.NET应用程序Docker编写文件 Nginx代理最后日志 Nginx代理Letsencypt最后日志 Asp.NET AppSettings.json Startup.cs配置方法

---

我感觉您的nginx配置指向了错误的端点。也请共享nginx.config。在代理撰写文件中使用自定义baseimage有什么原因吗？请在启动两个compose文件后共享docker network inspect proxy的输出。网络异常。“网络异常”是响应？？不应该是这样的。它应该为您提供一个json，其中所有容器都加入了代理网络。确保情况属实。docker代理网络中没有companion_api。我在companion_api docker compose中将网络名称从默认更改为代理，并在companion_api networks中指示代理网络。这一切都解决了。你能提供你的nginx.conf吗？

version: "3"

services:
  proxy:
    image: jwilder/nginx-proxy
    container_name: proxy
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./certs:/etc/nginx/certs
      - ./vhost:/etc/nginx/vhost.d
      - ./html:/usr/share/nginx/html
      - /var/run/docker.sock:/tmp/docker.sock:ro
  proxy_ssh:
    image: jrcs/letsencrypt-nginx-proxy-companion
    container_name: proxy_ssh
    volumes_from:
      - proxy
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./acme:/etc/acme.sh
    environment:
      - "DEFAULT_EMAIL=email@email.email"

networks:
  default:
    external:
      name: proxy

NETWORK ID     NAME      DRIVER    SCOPE
95cb3f06c7bc   bridge    bridge    local
edf088f10490   host      host      local
4762025d43fb   mongodb   bridge    local
1c57024e2ca0   none      null      local
5713c9aeb2cd   proxy     bridge    local

FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build

WORKDIR /
COPY . ./app

WORKDIR /app
RUN dotnet restore
RUN dotnet publish -c release -o /app/App.WebApi --no-restore

FROM mcr.microsoft.com/dotnet/aspnet:5.0

WORKDIR /app/App.WebApi

COPY --from=build /app/App.WebApi ./

ENTRYPOINT ["dotnet", "App.WebApi.dll"]

version: "3"

services:
  web_api:
    build: .
    container_name: companion_api
    ports:
      - '5000:80'
    volumes:
      - ./_data:/app/App.WebApi/cache/storage
    environment:
      - 'VIRTUAL_HOST=my.domain.dot'
      - 'LETSENCRYPT_HOST=my.domain.dot'
      - 'VIRTUAL_PORT=5000'
    networks:
      - mongodb

networks:
  mongodb:
    external:
      name: mongodb
  default:
    external:
      name: proxy

is being generated in the background.  Once the new dhparam.pem is in place, nginx will be reloaded.
forego     | starting dockergen.1 on port 5000
forego     | starting nginx.1 on port 5100
dockergen.1 | 2021/04/04 12:29:15 Generated '/etc/nginx/conf.d/default.conf' from 4 containers
dockergen.1 | 2021/04/04 12:29:15 Running 'nginx -s reload'
dockergen.1 | 2021/04/04 12:29:15 Watching docker events
dockergen.1 | 2021/04/04 12:29:15 Contents of /etc/nginx/conf.d/default.conf did not change. Skipping notification 'nginx -s reload'
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:18 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 301 169 "-" "PostmanRuntime/7.26.10"
nginx.1    | 2021/04/04 12:29:18 [error] 92#92: *2 no live upstreams while connecting to upstream, client: 79.110.132.102, server: my.domain.dot, request: "GET /Api/V1/Application/GetAllApplications HTTP/1.1", upstream: "http://my.domain.dot/Api/V1/Application/GetAllApplications", host: "my.domain.dot", referrer: "http://my.domain.dot/Api/V1/Application/GetAllApplications"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:18 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 502 157 "http://my.domain.dot/Api/V1/Application/GetAllApplications" "PostmanRuntime/7.26.10"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:19 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 301 169 "-" "PostmanRuntime/7.26.10"
nginx.1    | 2021/04/04 12:29:19 [error] 92#92: *2 no live upstreams while connecting to upstream, client: 79.110.132.102, server: my.domain.dot, request: "GET /Api/V1/Application/GetAllApplications HTTP/1.1", upstream: "http://my.domain.dot/Api/V1/Application/GetAllApplications", host: "my.domain.dot", referrer: "http://my.domain.dot/Api/V1/Application/GetAllApplications"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:19 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 502 157 "http://my.domain.dot/Api/V1/Application/GetAllApplications" "PostmanRuntime/7.26.10"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:20 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 301 169 "-" "PostmanRuntime/7.26.10"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:20 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 502 157 "http://my.domain.dot/Api/V1/Application/GetAllApplications" "PostmanRuntime/7.26.10"
nginx.1    | 2021/04/04 12:29:20 [error] 92#92: *2 no live upstreams while connecting to upstream, client: 79.110.132.102, server: my.domain.dot, request: "GET /Api/V1/Application/GetAllApplications HTTP/1.1", upstream: "http://my.domain.dot/Api/V1/Application/GetAllApplications", host: "my.domain.dot", referrer: "http://my.domain.dot/Api/V1/Application/GetAllApplications"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:22 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 502 157 "-" "PostmanRuntime/7.26.10"
nginx.1    | 2021/04/04 12:29:22 [error] 92#92: *2 no live upstreams while connecting to upstream, client: 79.110.132.102, server: my.domain.dot, request: "GET /Api/V1/Application/GetAllApplications HTTP/1.1", upstream: "http://my.domain.dot/Api/V1/Application/GetAllApplications", host: "my.domain.dot"
nginx.1    | my.domain.dot 79.110.132.102 - - [04/Apr/2021:12:29:24 +0000] "GET /Api/V1/Application/GetAllApplications HTTP/1.1" 502 157 "-" "PostmanRuntime/7.26.10"
nginx.1    | 2021/04/04 12:29:24 [error] 92#92: *2 no live upstreams while connecting to upstream, client: 79.110.132.102, server: my.domain.dot, request: "GET /Api/V1/Application/GetAllApplications HTTP/1.1", upstream: "http://my.domain.dot/Api/V1/Application/GetAllApplications", host: "my.domain.dot"
2021/04/04 12:29:35 [notice] 95#95: signal process started
Generating DSA parameters, 4096 bit long prime
dhparam generation complete, reloading nginx

Info: running letsencrypt-nginx-proxy-companion version v2.0.2-37-gc8c1f69
Info: Custom Diffie-Hellman group found, generation skipped.
Reloading nginx proxy (afb27c1f1625f6c6883faf61dd9a457ec67225ac09436e7b3706f55d7941560a)...
2021/04/04 12:29:16 Contents of /etc/nginx/conf.d/default.conf did not change. Skipping notification ''
2021/04/04 12:29:16 [notice] 67#67: signal process started
2021/04/04 12:29:16 Generated '/app/letsencrypt_service_data' from 4 containers
2021/04/04 12:29:16 Running '/app/signal_le_service'
2021/04/04 12:29:16 Watching docker events
2021/04/04 12:29:16 Contents of /app/letsencrypt_service_data did not change. Skipping notification '/app/signal_le_service'
Reloading nginx proxy (afb27c1f1625f6c6883faf61dd9a457ec67225ac09436e7b3706f55d7941560a)...
2021/04/04 12:29:17 Contents of /etc/nginx/conf.d/default.conf did not change. Skipping notification ''
2021/04/04 12:29:17 [notice] 91#91: signal process started
Creating/renewal my.domain.dot certificates... (my.domain.dot)
[Sun Apr  4 12:29:18 UTC 2021] Domains not changed.
[Sun Apr  4 12:29:18 UTC 2021] Skip, Next renewal time is: Thu Jun  3 00:31:08 UTC 2021
[Sun Apr  4 12:29:18 UTC 2021] Add '--force' to force to renew.
Sleep for 3600s

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*"
}

 public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
        app.UseSwagger();
        app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "App.WebApi v1"));
    }
    else
    {
        app.UseHsts();
    }

    app.UseHttpsRedirection();
    app.UseRouting();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllers();
    });
}