docker - 无法在 heroku 上部署 ASP.netcore 3.1 dockerized 应用程序，但容器在本地工作

问题描述

几天来，我一直在寻找许多教程来尝试找到我的解决方案，但我就是无法得到它。

概述： 我正在构建一个已设置为在 docker 上运行的Asp.net Core (3.1)应用程序。我的目标是将它部署到heroku。

问题： 我可以让它在本地运行以尝试运行 docker 容器，但是当我将它部署到 heroku 时（图像创建时没有问题），我收到错误屏幕消息：

“应用程序错误应用程序发生错误，无法提供您的页面。如果您是应用程序所有者，请检查您的日志以获取详细信息。您可以从 Heroku CLI 使用命令执行此操作”

设置

赫罗库：

正在使用的测功机：api /bin/sh -c ASPNETCORE_URLS\= http://* :\$PORT\ dotnet\
构建包：https ://github.com/jincod/dotnetcore-buildpack

代码

Dockerfile


WORKDIR /src
COPY *.sln .
COPY Ecomm.UnitTests/*.csproj Ecomm.UnitTests/
COPY Ecomm.Api/*.csproj Ecomm.Api/
RUN dotnet restore
COPY . .

# testing
FROM build AS testing
WORKDIR /src/Ecomm.Api
RUN dotnet build
WORKDIR /src/Ecomm.UnitTests
RUN dotnet test

# publish
FROM build AS publish
WORKDIR /src/Ecomm.Api
RUN dotnet publish -c Release -o /src/publish



FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime
WORKDIR /src
COPY --from=publish /src/publish .
# heroku uses the following
CMD ASPNETCORE_URLS=http://*:$PORT dotnet Ecomm.Api.dll

Program.cs（默认脚本）

public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });
    }

Startup.cs（默认脚本）

public class Startup 
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();

            app.UseRouting();

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

启动设置.json

    "Ecomm.Api": {
      "commandName": "Project",
      "launchBrowser": true,
      "launchUrl": "/weatherforecast",
      "applicationUrl": "https://localhost:5001;http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Production"
      }
    }

本地运行容器和部署到heroku的比较

本地接口

Heroku 界面

用于推送 Heroku 容器寄存器的方法：

  docker login --username=_ --password=$HEROKU_API_KEY registry.heroku.com
  heroku container:push api -a $HEROKU_APP_NAME --recursive 
  heroku container:release api -a $HEROKU_APP_NAME

heroku 中的错误日志：

2020-01-18T14:53:32.255720+00:00 heroku[api.1]: State changed from crashed to starting

2020-01-18T14:53:35.853732+00:00 heroku[api.1]: Starting process with command `/bin/sh -c ASPNETCORE_URLS\=http://\*:\59573\ dotnet\ Ecomm.Api.dll`

2020-01-18T14:53:36.494742+00:00 heroku[api.1]: State changed from starting to up

2020-01-18T14:53:37.754733+00:00 app[api.1]: Hosting environment: Production

2020-01-18T14:53:37.754802+00:00 app[api.1]: Content root path: /src

2020-01-18T14:53:37.754925+00:00 app[api.1]: Now listening on: http://[::]:59573

2020-01-18T14:53:37.754946+00:00 app[api.1]: Application started. Press Ctrl+C to shut down.

2020-01-18T14:53:39.762409+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=dariorega-ecomm-api.herokuapp.com request_id=7538ce41-5d5e-4081-b214-eb1e50fdcc6c fwd="188.155.40.41" dyno= connect= service= status=503 bytes= protocol=https

2020-01-18T14:53:40.075446+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=dariorega-ecomm-api.herokuapp.com request_id=4f1ff94a-eb45-4301-9c3a-74ece82abe84 fwd="188.155.40.41" dyno= connect= service= status=503 bytes= protocol=https

2020-01-18T14:53:51.155230+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/api" host=dariorega-ecomm-api.herokuapp.com request_id=1cc3eeac-1ce5-4a67-82e0-ee680beecc90 fwd="188.155.40.41" dyno= connect= service= status=503 bytes= protocol=https

2020-01-18T14:53:51.440188+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=dariorega-ecomm-api.herokuapp.com request_id=caa51bcd-a153-444b-88b5-c024d1b2ae84 fwd="188.155.40.41" dyno= connect= service= status=503 bytes= protocol=https

2020-01-18T14:53:56.045125+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/weatherforecast" host=dariorega-ecomm-api.herokuapp.com request_id=bcdc8195-9da6-4258-a48b-4614d885302a fwd="188.155.40.41" dyno= connect= service= status=503 bytes= protocol=https

2020-01-18T14:53:56.292724+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=dariorega-ecomm-api.herokuapp.com request_id=2329aa44-bdb0-43e3-bbbf-58bd87a09f8c fwd="188.155.40.41" dyno= connect= service= status=503 bytes= protocol=https

我在本地容器中获取的日志： 运行 docker 容器后使用相同的 dockerfile 运行：

info: Microsoft.Hosting.Lifetime[0]
      Now listening on: http://[::]:5000

info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.

info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production

info: Microsoft.Hosting.Lifetime[0]
      Content root path: /src

warn: Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]
      Failed to determine the https port for redirect

但它有效

结论

我在 docker 文件中尝试了很多东西，或者编辑了定义 useUrl 方法的 program.cs，但我仍然无法让它工作。我不知道是否与 http /https 进程相关，因为 https 不是设置/工作。而heroku使用https。或者我应该定义一个网址吗？欢迎任何帮助！提前感谢您花时间阅读本文

标签： dockerasp.net-coreherokuasp.net-core-webapi

docker - 无法在 heroku 上部署 ASP.netcore 3.1 dockerized 应用程序，但容器在本地工作

问题描述

解决方案

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