Launch AKHQ from testcontainers in .NET

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C#

Kafka

I am trying to launch AKHQ using Testcontainers, however when launching UI, I get the following message:

/ http://localhost:62732/
{
  "message": "Couldn't find any clusters on your configuration file, 
   please ensure that the configuration file is loaded correctly",
  "_links": {
    "self": {
      "href": "/",
      "templated": false
    }
  }
}

What I have tried:

			var containerName = Guid.NewGuid().ToString();

			#region Zookeeper
			var zookeeperContainerName = $"zookeeper_{containerName}";
			var zookeeperContainer = new ContainerBuilder()
				// Set the image for the container
				.WithImage("confluentinc/cp-zookeeper:latest")
				.WithName(zookeeperContainerName)
				// Bind port 2181 of the container to a 
                // random port on the host.
				.WithPortBinding(2181, true)
				.WithEnvironment(new Dictionary<string, string>
				{
					{"ZOOKEEPER_CLIENT_PORT", "2181"},
					{"ZOOKEEPER_TICK_TIME", "2000"}
				})
				.WithWaitStrategy(Wait.ForUnixContainer().UntilPortIsAvailable(2181))
				.Build();

			await zookeeperContainer.StartAsync()
				.ConfigureAwait(false);
#endregion

			#region Kafka
			var zookeeperHostPort = 
                zookeeperContainer.GetMappedPublicPort(2181);
			var kafkaContainerName = $"kafka_{containerName}";
			var kafkaHostPort = FindFreePort();
			var kafkaContainer = new ContainerBuilder()
				// Set the image for the container
				.WithImage("confluentinc/cp-kafka:latest")
				.WithName(kafkaContainerName)
				.WithHostname(kafkaContainerName)
				.WithPortBinding(kafkaHostPort, 9092)
				.WithEnvironment(new Dictionary<string, string>
				{
					{"KAFKA_BROKER_ID", "1"},
					{"KAFKA_ZOOKEEPER_CONNECT", 
                      $"host.docker.internal:{zookeeperHostPort}"},

					{"KAFKA_LISTENER_SECURITY_PROTOCOL_MAP", 
                     "PLAINTEXT:PLAINTEXT,PLAINTEXT_INTERNAL:PLAINTEXT"},
					{"KAFKA_LISTENERS", 
                     "PLAINTEXT://:9092,PLAINTEXT_INTERNAL://:29092"},
					{"KAFKA_ADVERTISED_LISTENERS", 
                    $"PLAINTEXT://localhost:{kafkaHostPort},
                     PLAINTEXT_INTERNAL://{kafkaContainerName}:29092"},
					{"KAFKA_INTER_BROKER_LISTENER_NAME", 
                     "PLAINTEXT_INTERNAL"},
					{"KAFKA_TRANSACTION_STATE_LOG_MIN_ISR", "1"},
					{"KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR", "1"},
					{"KAFKA_AUTO_CREATE_TOPICS_ENABLE", "true"},
					{"KAFKA_DELETE_TOPIC_ENABLE", "true"},
					{"KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR", "1"},
				})
				.WithWaitStrategy(Wait.ForUnixContainer().UntilPortIsAvailable(9092))
				.Build();

			await kafkaContainer.StartAsync()
				.ConfigureAwait(false);
			#endregion

			#region akhq
			var akhqContainerName = $"akhq_{containerName}";
			var akhqHostPort = 62732;//FindFreePort();
			var akhqContainer = new ContainerBuilder()
				// Set the image for the container
				.WithImage("tchiotludo/akhq:latest")
				.WithName(akhqContainerName)
				.WithPortBinding(akhqHostPort, 8082)
				.WithEnvironment(new Dictionary<string, string>
				{
					{"MICRONAUT_SERVER_PORT", "8082"},
					{"AKHQ_CONFIGURATION", 
                    $"\r\n{akhqContainerName}:\r\nconnections:\r\ndocker-kafka-server:\r\nproperties:\r\nbootstrap.servers: \" 
                   {kafkaContainerName}:29092\"\r\n"}
				})
				.WithWaitStrategy(Wait.ForUnixContainer().UntilPortIsAvailable(8082))
				.Build();

			await akhqContainer.StartAsync()
				.ConfigureAwait(false);
#endregion