Azure 容器应用程序每 30 秒重新启动一次

Question

我有一个基于 hosted BackgroundService model 的 Azure 容器应用程序。它本质上只是一个很长的运行ning 控制台应用程序，它覆盖了 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 - 一切都如预期的那样运行。当我部署为 Azure 容器应用程序时，它会部署并运行s - 尽管我必须手动将最小比例设置为 1 才能使其完全达到运行 - 但它每 30 秒左右重新启动一次这显然不理想。我的猜测是 Azure Container Apps docker 主机正在以某种方式检查我的实例的运行状况并且不满意所以尝试重新启动它？只是一个猜测。我错过了什么？

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

为我的服务关闭 Ingress 解决了这个问题。打开它但服务不提供任何可访问的端点似乎是问题所在。

Answer 2

我是容器应用程序的工程经理。

您的容器应用程序正在重新启动，因为它未通过就绪探测。

如果您的容器应用程序的 HTTP 入口设置为“已启用”，平台将尝试在指定的目标端口（默认为 80）上对其进行 ping 操作。如果平台无法ping通，则认为是'unhealthy'，会被重启。请参阅 Health probes in Azure Container Apps 了解默认运行状况探测以及如何指定您自己的设置。

如果您的容器应用程序未在指定的入口端口侦听（例如，如果您的应用程序正在处理来自队列的消息并且不期望外部 http 请求），请将 HTTP 入口设置为“已禁用”。当 HTTP 入口设置为“已禁用”时，将不会配置运行状况探测，并且不会对您的应用执行 ping 操作。

如果您的容器应用程序正在侦听指定的 Targe 端口，但需要更长的启动时间，您可以定义更长的初始延迟 and/or 更长的 ping 间隔时间。

此外，请确保在 HTTP 配置中指定的目标端口与容器应用程序的 dockerfile 中公开的相同

Azure 容器应用程序每 30 秒重新启动一次

Azure Container Apps Restarts every 30 seconds

azure-container-instances

azure-container-apps