使用 WCF 服务的 exe 执行在 Windows docker 容器内失败

Question

我有一个用 .NET Framework 4.8 编写的控制台应用程序。它在给定端口 18793 上的代理的帮助下使用 .NET WCF Web 服务，该端口作为控制台主机服务托管在本地机器上。 Web 服务使用 net.Tcp 绑定协议。

当此控制台应用程序在由图像创建的 Windows docker 容器中执行时：

mcr.microsoft.com/dotnet/framework/sdk:4.8.1

我手动将“POSTestClient”exe 二进制文件复制到容器中并在 powershell 中执行如下 exe：-

cmd /c PosTest.Client.exe 7843

然后我得到以下错误。

PS C:\POS\PosTestClient> cmd /c PosTest.Client.exe 7843

Unhandled Exception: System.ServiceModel.CommunicationException: The socket connection was aborted. 
This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. 
Local socket timeout was '01:59:53.5154850'. ---> System.IO.IOException: 
The write operation failed, see inner exception. ---> System.ServiceModel.CommunicationException: The socket connection was aborted. 
This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. 
Local socket timeout was '01:59:53.5154850'. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.ServiceModel.Channels.SocketConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout)
   --- End of inner exception stack trace ---
   at System.ServiceModel.Channels.SocketConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout)
   at System.ServiceModel.Channels.BufferedConnection.WriteNow(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, BufferManager bufferManager)
   at System.ServiceModel.Channels.BufferedConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout)
   at System.ServiceModel.Channels.ConnectionStream.Write(Byte[] buffer, Int32 offset, Int32 count)
   at System.Net.Security.NegotiateStream.StartWriting(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.NegotiateStream.ProcessWrite(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
   --- End of inner exception stack trace ---
   at System.Net.Security.NegotiateStream.ProcessWrite(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.NegotiateStream.Write(Byte[] buffer, Int32 offset, Int32 count)
   at System.ServiceModel.Channels.StreamConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout)
   --- End of inner exception stack trace ---

Server stack trace:
   at System.ServiceModel.Channels.StreamConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout)
   at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.SendPreamble(IConnection connection, ArraySegment`1 preamble, TimeoutHelper& timeoutHelper)
   at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.DuplexConnectionPoolHelper.AcceptPooledConnection(IConnection connection, TimeoutHelper& timeoutHelper)
   at System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
   at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
   at System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at PostTest.Proxy.WcfSvcRef.IPosTestSvc.GetData(Int32 value)
   at PostTest.Proxy.PosDeploymentDefaultProxy.get_GetData() in D:\Project\WCfMyLocalService\PostTest.Proxy\PosDeploymentDefaultProxy.cs:line 18
   at PosTest.Client.Program.Main(String[] args) in D:\Project\WCfMyLocalService\PosTest.Client\Program.cs:line 22

在容器内部，.NET WCF 服务无法在给定端口（即 18793）解析。

在这个问题的调查中，一切都在本地机器（即我的笔记本电脑）上设置，但在实际应用程序中，该服务托管在 Intranet 空间内的单独 Windows Web 服务器上。这只是一个用于说明目的的示例应用程序，因此预期的输出只是一个字符串，其中包含作为参数提供的数值。例如，“PosTest.Client.exe 10” -> 输出 -> 调用值为 10 的 GetData 服务方法。