[dotnet] pods already exists issue when using .WithResourceMapping

[maciejgwizdala]

Hello,
I have following code written in C#:

const string workingDirectory = "/app";
var randomHttpsHostPort = new Random().Next(49152, 65535);

 _container = new ContainerBuilder()
   .WithImage($"{configuration.ImageUrl}")
   .WithWorkingDirectory(workingDirectory)
   .WithPortBinding(8080, 8080)
   .WithPortBinding(randomHttpsHostPort, 8443)
   .WithResourceMapping(new FileInfo("localhost.key"), new FileInfo(workingDirectory + "/localhost.key"))
   .WithResourceMapping(new FileInfo("localhost.pem"), new FileInfo(workingDirectory + "/localhost.pem"))
   .WithEnvironment(new Dictionary<string, string>
     {
       ["ServerCertificate__CertificatePemFilePath"] = $"{workingDirectory}/localhost.pem",
       ["ServerCertificate__KeyPemFilePath"] = $"{workingDirectory}/localhost.key",
      })
    .WithWaitStrategy(Wait.ForUnixContainer().UntilPortIsAvailable(8080))
    .WithOutputConsumer(Consume.RedirectStdoutAndStderrToConsole())
    .Build();

I configured .WithResourceMapping according to newest docs update of testcontainers-dotnet, which is also described in Best practices as it copies file to container before start. This setup works correctly with local docker installation.

Hovewer, when I try to run above configuration with kubedock, I'm getting strange issue that pod already exists:

  [testcontainers.org 00:00:00.20] Connected to Docker:
    Host: tcp://kubedock:2475/
    Server Version: 0.18.1
    Kernel Version: 
    API Version: 1.25
    Operating System: kubernetes
    Total Memory: 0.00 GB
  [testcontainers.org 00:00:00.47] Docker container 49676c249464 created
  [testcontainers.org 00:00:00.48] Add file to tar archive: Content length: 1703 byte(s), Target file: "/app/localhost.key"
  [testcontainers.org 00:00:00.49] Copy tar archive to container: Content length: 1703 byte(s), Docker container: 49676c249464
  [testcontainers.org 00:00:00.49] Add file to tar archive: Content length: 1118 byte(s), Target file: "/app/localhost.pem"
  [testcontainers.org 00:00:00.49] Copy tar archive to container: Content length: 1118 byte(s), Docker container: 49676c249464
  [+0/x0/?0] IntegrationTests.dll (net9.0|x64) - 3 tests running (3s)
  
  fail: IntegrationTests.TestContainer[0]
        Container start failed: DockerApiException: Docker API responded with status code=InternalServerError, response={"message":"pods \"kubedock-49676c249464\" already exists"}
  fail: IntegrationTests.TestContainer[0]
        Container state: Undefined
  warn: IntegrationTests.TestContainer[0]
        Container not in valid state to retrieve logs
  fail: IntegrationTests.TestContainer[0]
        Full exception
        Docker.DotNet.DockerApiException: Docker API responded with status code=InternalServerError, response={"message":"pods \"kubedock-49676c249464\" already exists"}
           at Docker.DotNet.DockerClient.HandleIfErrorResponseAsync(HttpStatusCode statusCode, HttpResponseMessage response, IEnumerable`1 handlers)
           at Docker.DotNet.DockerClient.MakeRequestAsync(IEnumerable`1 errorHandlers, HttpMethod method, String path, IQueryString queryString, IRequestContent body, IDictionary`2 headers, TimeSpan timeout, CancellationToken token)
           at DotNet.Testcontainers.Clients.TestcontainersClient.CopyAsync(String id, IResourceMapping resourceMapping, CancellationToken ct)
           at DotNet.Testcontainers.Clients.TestcontainersClient.RunAsync(IContainerConfiguration configuration, CancellationToken ct)
           at DotNet.Testcontainers.Containers.DockerContainer.UnsafeCreateAsync(CancellationToken ct)
           at DotNet.Testcontainers.Containers.DockerContainer.StartAsync(CancellationToken ct)
           at IntegrationTests.TestContainer.StartAsync() in /home/runner/_work/IntegrationTests/TestContainer.cs:line 21