Azure容器应用程序每30秒重新启动一次

Question

我有一个基于托管BackgroundService模型的Azure。它实际上只是一个长时间运行的控制台应用程序，它覆盖BackgroundService.ExecuteAsync方法并等待停止信号(通过传递的取消令牌)。当我在Docker本地运行时，它是完美的--一切都按预期运行。当我部署为Azure Container时，它会部署并运行--尽管我必须手动将规模设置为1才能让它运行--但是它大约每30秒重新启动一次，这显然不太理想。我的猜测是Azure容器应用程序对接主机正在以某种方式检查我的实例的健康状况，并且不满意，所以尝试重新启动它？只是猜一下。我遗漏了什么？

using FR911.DataAccess.Repository;
using FR911.Infrastructure.Commands;
using FR911.Utils;
using FR911.Utils.Extensions;
using SimpleInjector;

IHost host = Host.CreateDefaultBuilder(args)
    .ConfigureServices(services =>
    {
        services.AddFR911Log4NetConfig();        
        services.AddTransient<ICommandProcessor, CommandProcessor>();
        Container container = new Container();
        container.Register(typeof(ICommandHandler<,>), new List<Type>()
            {
                //typeof(CacheSyncCommandHandler),
            });

#if DEBUG
        container.Verify();
#endif

        services.AddSingleton<Container>(container);
        services.AddHostedService<Worker>();
    })
    .Build();

await host.RunAsync();

    public class Worker : BackgroundService
    {
        private readonly ILogger<Worker> _logger;
        private ICommandProcessor _commandProcessor;

        public Worker(ILogger<Worker> logger, ICommandProcessor cmdProcessor)
        {
            _logger = logger;            
            _commandProcessor = cmdProcessor;
        }
        
        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _logger.LogInformation("Worker starting at: {time}", DateTimeOffset.Now);

            DateTime? lastGC = null;
            while (!stoppingToken.IsCancellationRequested)
            {
                _logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
                await Task.Delay(1000, stoppingToken);
            }
            _logger.LogInformation("Worker stopping at: {time}", DateTimeOffset.Now);
        }
    }

24 May 2022 12:10:46.5732022-05-24 12:10:46,248 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker starting at: 05/24/2022 12:10:46 +00:00
24 May 2022 12:10:46.5732022-05-24 12:10:46,249 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:46 +00:00
24 May 2022 12:10:46.5732022-05-24 12:10:46,251 Microsoft.Hosting.Lifetime fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Application started. Press Ctrl+C to shut down.
24 May 2022 12:10:46.5732022-05-24 12:10:46,252 Microsoft.Hosting.Lifetime fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Hosting environment: Production
24 May 2022 12:10:46.5732022-05-24 12:10:46,336 Microsoft.Hosting.Lifetime fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Content root path: /app
24 May 2022 12:10:47.6402022-05-24 12:10:47,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:47 +00:00
24 May 2022 12:10:48.6402022-05-24 12:10:48,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:48 +00:00
24 May 2022 12:10:49.6392022-05-24 12:10:49,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:49 +00:00
24 May 2022 12:10:50.6432022-05-24 12:10:50,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:50 +00:00
24 May 2022 12:10:51.6422022-05-24 12:10:51,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:51 +00:00
24 May 2022 12:10:52.6412022-05-24 12:10:52,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:52 +00:00
24 May 2022 12:10:53.6622022-05-24 12:10:53,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:53 +00:00
24 May 2022 12:10:54.6402022-05-24 12:10:54,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:54 +00:00
24 May 2022 12:10:55.6382022-05-24 12:10:55,636 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:55 +00:00
24 May 2022 12:10:56.6392022-05-24 12:10:56,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:56 +00:00
24 May 2022 12:10:57.6402022-05-24 12:10:57,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:57 +00:00
24 May 2022 12:10:58.6402022-05-24 12:10:58,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:58 +00:00
24 May 2022 12:10:59.6402022-05-24 12:10:59,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:10:59 +00:00
24 May 2022 12:11:00.6402022-05-24 12:11:00,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:00 +00:00
24 May 2022 12:11:01.6432022-05-24 12:11:01,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:01 +00:00
24 May 2022 12:11:02.6392022-05-24 12:11:02,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:02 +00:00
24 May 2022 12:11:03.6402022-05-24 12:11:03,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:03 +00:00
24 May 2022 12:11:04.6412022-05-24 12:11:04,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:04 +00:00
24 May 2022 12:11:05.6492022-05-24 12:11:05,636 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:05 +00:00
24 May 2022 12:11:06.6642022-05-24 12:11:06,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:06 +00:00
24 May 2022 12:11:07.6392022-05-24 12:11:07,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:07 +00:00
24 May 2022 12:11:08.6402022-05-24 12:11:08,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:08 +00:00
24 May 2022 12:11:09.6402022-05-24 12:11:09,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:09 +00:00
24 May 2022 12:11:10.6412022-05-24 12:11:10,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:10 +00:00
24 May 2022 12:11:11.6392022-05-24 12:11:11,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:11 +00:00
24 May 2022 12:11:12.6402022-05-24 12:11:12,637 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:12 +00:00
24 May 2022 12:11:13.6402022-05-24 12:11:13,638 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:13 +00:00
24 May 2022 12:11:14.6392022-05-24 12:11:14,636 FR911.Worker.Worker fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Worker running at: 05/24/2022 12:11:14 +00:00
24 May 2022 12:11:14.9312022-05-24 12:11:14,930 Microsoft.Hosting.Lifetime fr911worker-app-20--vki2kmn-cf5bff474-5w6mh INFO Application is shutting down...

Answer 1

我是集装箱应用软件的工程经理。

您的Container正在重新启动，因为它没有通过就绪探测。

如果您的Container的HTTP入口设置为“已启用”，平台将尝试在指定的目标端口(默认情况下为80)上对其进行ping。如果平台不能成功地运行它，它将被认为是“不健康的”，并将被重新启动。请参考Azure容器应用程序中的健康探针了解默认的运行状况探测以及如何指定您自己的设置。

如果您的Container没有侦听指定的入口端口(例如，如果您的应用程序正在处理来自队列的消息而不期望外部http请求)，则将HTTP入口设置为“禁用”。当HTTP入口被设置为“禁用”时，将不会配置健康探测，您的应用程序也不会被点击。

如果您的Container正在监听指定的Targe端口，但它需要更长的启动时间，您可以定义一个更长的初始延迟和/或更长的pings之间的时间。

另外，确保HTTP配置中指定的目标端口与容器应用程序的dockerfile中的EXPOSEd相同

Answer 2

为了我的服务而关闭了她，解决了这个问题。打开它和没有提供任何可访问端点的服务似乎是问题所在。

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