NET 5.0 console app which I want to run in docker container

using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.SignalR.Client;
using System.Net.Http;
using System.Threading;

namespace pi_worker
{
    class Program
    {
        private const string _url = "*server_url*";

        static async Task Main(string[] args)
        {                
            using (HttpClient client = new HttpClient())
            {
                await client.GetAsync($"{_url}/*endpointName*");
            }                     
        }
    }

I'm building my container with dockerfile and commands:

docker build -t worker . docker run worker.

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

COPY bin/Release/net5.0/publish .

ENTRYPOINT ["dotnet", "pi-worker.dll"]

But for the second command container starts I'm getting this error

Unhandled exception. System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.
 ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid because of errors in the certificate chain: UntrustedRoot
   at System.Net.Security.SslStream.SendAuthResetSignal(ProtocolToken message, ExceptionDispatchInfo exception)
   at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](TIOAdapter adapter, Boolean receiveFirst, Byte[] reAuthenticationData, Boolean isApm)
   at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Boolean async, Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Boolean async, Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.GetHttpConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
   at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
   at System.Net.Http.HttpClient.SendAsyncCore(HttpRequestMessage request, HttpCompletionOption completionOption, Boolean async, Boolean emitTelemetryStartStop, CancellationToken cancellationToken)
   at pi_worker.Program.Main(String[] args) in *path_to_project*\pi-worker\pi-worker\Program.cs:line 25
   at pi_worker.Program.<Main>(String[] args)

I tried some google solution but none of them helped

CodePudding user response：

The error message says that your worker in Docker can not recognize an SSL certificate of your server. Because of it, the HTTPS connection can not be established. In order to fix it, you need to somehow add a certificate from your server to the Trusted certificates stored in your docker container. This article may help to do it.