请使用java编写程序连接k8s启动模型评估任务，要求如下： 1，用户选择模型和数据集 2，从miniIO下载模型，从pachyderm下载数据集 3，评估结果输出到miniIO中

以下是一个简单的Java代码示例，可以连接到Kubernetes集群，启动模型评估任务，并将结果输出到MinIO中：

import io.minio.MinioClient;
import io.minio.errors.*;
import io.minio.messages.Item;
import io.swagger.client.ApiClient;
import io.swagger.client.ApiException;
import io.swagger.client.Configuration;
import io.swagger.client.api.DefaultApi;
import io.swagger.client.model.V1ObjectMeta;
import io.swagger.client.model.V1Pod;
import io.swagger.client.model.V1PodSpec;
import io.swagger.client.model.V1PodTemplateSpec;
import io.swagger.client.model.V1Container;
import io.swagger.client.model.V1ContainerPort;
import io.swagger.client.model.V1EnvVar;
import io.swagger.client.model.V1EnvVarSource;
import io.swagger.client.model.V1SecretKeySelector;
import io.swagger.client.model.V1Volume;
import io.swagger.client.model.V1VolumeMount;
import java.io.IOException;
import java.io.InputStream;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.concurrent.TimeUnit;
import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;

public class K8sEvaluationTask {

    private static final String K8S_NAMESPACE = "default";
    private static final String K8S_API_URL = "https://kubernetes.default.svc";
    private static final String MINIO_ENDPOINT = "http://minio-service.default.svc.cluster.local:9000";
    private static final String MINIO_ACCESS_KEY = "accesskey";
    private static final String MINIO_SECRET_KEY = "secretkey";
    private static final String MINIO_BUCKET_NAME = "evaluation-results";

    public static void main(String[] args) throws IOException, InvalidKeyException, NoSuchAlgorithmException, InvalidResponseException, ErrorResponseException, XmlParserException, InternalException {
        // 用户选择模型和数据集
        String modelPath = "/models/my-model.pb";
        String datasetPath = "/datasets/my-dataset.csv";

        // 从MiniIO下载模型和验证集
        MinioClient minioClient = new MinioClient(MINIO_ENDPOINT, MINIO_ACCESS_KEY, MINIO_SECRET_KEY);
        InputStream modelStream = minioClient.getObject("models", modelPath);
        InputStream datasetStream = minioClient.getObject("datasets", datasetPath);

        // 从Pachyderm下载数据集
        Properties properties = new Properties();
        InputStream inputStream = K8sEvaluationTask.class.getResourceAsStream("/pachyderm.properties");
        properties.load(inputStream);
        String pachdHost = properties.getProperty("pachd.host");
        String pachdPort = properties.getProperty("pachd.port");
        String pachToken = properties.getProperty("pachd.token");
        String pachRepo = "my-repo";
        String pachBranch = "master";
        String pachPath = "/my-dataset.csv";
        ApiClient pachydermClient = Configuration.getDefaultApiClient();
        pachydermClient.addDefaultHeader("Authorization", "Bearer " + pachToken);
        DefaultApi defaultApi = new DefaultApi(pachydermClient);
        InputStream pachydermStream = defaultApi.getFile(pachRepo, pachBranch, pachPath);

        // 启动Kubernetes Pod
        ApiClient apiClient = Configuration.getDefaultApiClient();
        apiClient.setBasePath(K8S_API_URL);
        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient okHttpClient = apiClient.getHttpClient().newBuilder()
                .addInterceptor(loggingInterceptor)
                .connectTimeout(10, TimeUnit.SECONDS)
                .readTimeout(10, TimeUnit.SECONDS)
                .writeTimeout(10, TimeUnit.SECONDS)
                .build();
        apiClient.setHttpClient(okHttpClient);

        V1Pod pod = new V1Pod();
        V1ObjectMeta metadata = new V1ObjectMeta();
        metadata.setName("evaluation-task");
        pod.setMetadata(metadata);
        V1PodSpec spec = new V1PodSpec();
        V1Container container = new V1Container();
        container.setName("evaluation");
        container.setImage("tensorflow/tensorflow:latest-gpu");
        List<String> command = new ArrayList<>();
        command.add("python");
        command.add("/app/evaluation.py");
        container.setCommand(command);
        List<String> argsList = new ArrayList<>();
        argsList.add("--model_path=/mnt/models/my-model.pb");
        argsList.add("--dataset_path=/mnt/datasets/my-dataset.csv");
        container.setArgs(argsList);
        V1EnvVar minioEndpoint = new V1EnvVar();
        minioEndpoint.setName("MINIO_ENDPOINT");
        minioEndpoint.setValue(MINIO_ENDPOINT);
        container.addEnvItem(minioEndpoint);
        V1EnvVar minioAccessKey = new V1EnvVar();
        minioAccessKey.setName("MINIO_ACCESS_KEY");
        minioAccessKey.setValueFrom(new V1EnvVarSource().secretKeyRef(new V1SecretKeySelector().name("minio-credentials").key("accesskey")));
        container.addEnvItem(minioAccessKey);
        V1EnvVar minioSecretKey = new V1EnvVar();
        minioSecretKey.setName("MINIO_SECRET_KEY");
        minioSecretKey.setValueFrom(new V1EnvVarSource().secretKeyRef(new V1SecretKeySelector().name("minio-credentials").key("secretkey")));
        container.addEnvItem(minioSecretKey);
        V1VolumeMount modelVolumeMount = new V1VolumeMount();
        modelVolumeMount.setName("models");
        modelVolumeMount.setMountPath("/mnt/models");
        container.addVolumeMountsItem(modelVolumeMount);
        V1VolumeMount datasetVolumeMount = new V1VolumeMount();
        datasetVolumeMount.setName("datasets");
        datasetVolumeMount.setMountPath("/mnt/datasets");
        container.addVolumeMountsItem(datasetVolumeMount);
        V1ContainerPort containerPort = new V1ContainerPort();
        containerPort.setContainerPort(8080);
        container.addPortsItem(containerPort);
        spec.addContainersItem(container);
        V1Volume modelVolume = new V1Volume();
        modelVolume.setName("models");
        V1SecretKeySelector modelSecretKeySelector = new V1SecretKeySelector();
        modelSecretKeySelector.setName("minio-credentials");
        modelSecretKeySelector.setKey("accesskey");
        V1Volume.Secret modelSecret = new V1Volume.Secret();
        modelSecret.setSecretName("minio-credentials");
        modelVolume.setSecret(modelSecret);
        spec.addVolumesItem(modelVolume);
        V1Volume datasetVolume = new V1Volume();
        datasetVolume.setName("datasets");
        V1SecretKeySelector datasetSecretKeySelector = new V1SecretKeySelector();
        datasetSecretKeySelector.setName("pachyderm-credentials");
        datasetSecretKeySelector.setKey("token");
        V1Volume.Secret datasetSecret = new V1Volume.Secret();
        datasetSecret.setSecretName("pachyderm-credentials");
        datasetVolume.setSecret(datasetSecret);
        spec.addVolumesItem(datasetVolume);
        V1PodTemplateSpec template = new V1PodTemplateSpec();
        template.setSpec(spec);
        pod.setSpec(spec);

        // 发布Pod
        DefaultApi defaultApi = new DefaultApi(apiClient);
        defaultApi.createNamespacedPod(K8S_NAMESPACE, pod, null, null, null);

        // 等待Pod完成
        boolean isRunning = true;
        while (isRunning) {
            try {
                TimeUnit.SECONDS.sleep(5);
                V1Pod statusPod = defaultApi.readNamespacedPodStatus("evaluation-task", K8S_NAMESPACE, null, null, null);
                if (statusPod.getStatus().getPhase().equals("Succeeded")) {
                    isRunning = false;
                } else if (statusPod.getStatus().getPhase().equals("Failed")) {
                    throw new RuntimeException("Pod failed to execute");
                }
            } catch (InterruptedException | ApiException e) {
                e.printStackTrace();
            }
        }

        // 上传评估结果到MiniIO
        Item item = new Item();
        item.objectName(MINIO_BUCKET_NAME + "/evaluation-results.csv");
        minioClient.putObject("evaluation-results", "evaluation-results.csv", pachydermStream, null, null, null, null);
    }
}

这个代码示例假设您已经有了一个MinIO服务器和一个Pachyderm集群。您需要将MinIO和Pachyderm的端点和凭据配置为环境变量或属性文件。此外，您需要根据您的模型和数据集的位置修改代码示例中的路径。