Esempi per Amazon ECS con SDK per Java 2.x - Esempi di codice per SDK AWS
Azioni

Sono disponibili altri esempi per SDK AWS nel repository GitHub della documentazione degli esempi per SDK AWS.

Esempi per Amazon ECS con SDK per Java 2.x

Gli esempi di codice seguenti mostrano come eseguire operazioni e implementare scenari comuni utilizzando AWS SDK for Java 2.x con Amazon ECS.

Le azioni sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Sebbene le operazioni mostrino come richiamare le singole funzioni del servizio, è possibile visualizzarle contestualizzate negli scenari correlati.

Ogni esempio include un link al codice sorgente completo, in cui vengono fornite le istruzioni su come configurare ed eseguire il codice nel contesto.

Argomenti

Azioni

L’esempio di codice seguente mostra come utilizzare CreateCluster.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.ExecuteCommandConfiguration;
import software.amazon.awssdk.services.ecs.model.ExecuteCommandLogging;
import software.amazon.awssdk.services.ecs.model.ClusterConfiguration;
import software.amazon.awssdk.services.ecs.model.CreateClusterResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;
import software.amazon.awssdk.services.ecs.model.CreateClusterRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class CreateCluster {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                   <clusterName>\s

                Where:
                   clusterName - The name of the ECS cluster to create.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterName = args[0];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        String clusterArn = createGivenCluster(ecsClient, clusterName);
        System.out.println("The cluster ARN is " + clusterArn);
        ecsClient.close();
    }

    public static String createGivenCluster(EcsClient ecsClient, String clusterName) {
        try {
            ExecuteCommandConfiguration commandConfiguration = ExecuteCommandConfiguration.builder()
                    .logging(ExecuteCommandLogging.DEFAULT)
                    .build();

            ClusterConfiguration clusterConfiguration = ClusterConfiguration.builder()
                    .executeCommandConfiguration(commandConfiguration)
                    .build();

            CreateClusterRequest clusterRequest = CreateClusterRequest.builder()
                    .clusterName(clusterName)
                    .configuration(clusterConfiguration)
                    .build();

            CreateClusterResponse response = ecsClient.createCluster(clusterRequest);
            return response.cluster().clusterArn();

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
        return "";
    }
}

  • Per informazioni dettagliate sull’API, consulta CreateCluster nella documentazione di riferimento dell’API AWS SDK for Java 2.x.

L’esempio di codice seguente mostra come utilizzare CreateService.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.AwsVpcConfiguration;
import software.amazon.awssdk.services.ecs.model.NetworkConfiguration;
import software.amazon.awssdk.services.ecs.model.CreateServiceRequest;
import software.amazon.awssdk.services.ecs.model.LaunchType;
import software.amazon.awssdk.services.ecs.model.CreateServiceResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class CreateService {
        public static void main(String[] args) {
                final String usage = """

                                Usage:
                                  <clusterName> <serviceName> <securityGroups> <subnets> <taskDefinition>

                                Where:
                                  clusterName - The name of the ECS cluster.
                                  serviceName - The name of the ECS service to create.
                                  securityGroups - The name of the security group.
                                  subnets - The name of the subnet.
                                  taskDefinition - The name of the task definition.
                                """;

                if (args.length != 5) {
                        System.out.println(usage);
                        System.exit(1);
                }

                String clusterName = args[0];
                String serviceName = args[1];
                String securityGroups = args[2];
                String subnets = args[3];
                String taskDefinition = args[4];
                Region region = Region.US_EAST_1;
                EcsClient ecsClient = EcsClient.builder()
                                .region(region)
                                .build();

                String serviceArn = createNewService(ecsClient, clusterName, serviceName, securityGroups, subnets,
                                taskDefinition);
                System.out.println("The ARN of the service is " + serviceArn);
                ecsClient.close();
        }

        public static String createNewService(EcsClient ecsClient,
                        String clusterName,
                        String serviceName,
                        String securityGroups,
                        String subnets,
                        String taskDefinition) {

                try {
                        AwsVpcConfiguration vpcConfiguration = AwsVpcConfiguration.builder()
                                        .securityGroups(securityGroups)
                                        .subnets(subnets)
                                        .build();

                        NetworkConfiguration configuration = NetworkConfiguration.builder()
                                        .awsvpcConfiguration(vpcConfiguration)
                                        .build();

                        CreateServiceRequest serviceRequest = CreateServiceRequest.builder()
                                        .cluster(clusterName)
                                        .networkConfiguration(configuration)
                                        .desiredCount(1)
                                        .launchType(LaunchType.FARGATE)
                                        .serviceName(serviceName)
                                        .taskDefinition(taskDefinition)
                                        .build();

                        CreateServiceResponse response = ecsClient.createService(serviceRequest);
                        return response.service().serviceArn();

                } catch (EcsException e) {
                        System.err.println(e.awsErrorDetails().errorMessage());
                        System.exit(1);
                }
                return "";
        }
}

  • Per informazioni dettagliate sull’API, consulta CreateService nella documentazione di riferimento dell’API AWS SDK for Java 2.x.

L’esempio di codice seguente mostra come utilizzare DeleteService.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DeleteServiceRequest;
import software.amazon.awssdk.services.ecs.model.EcsException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */

public class DeleteService {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <clusterName> <serviceArn>\s

                Where:
                  clusterName - The name of the ECS cluster.
                  serviceArn - The ARN of the ECS service.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterName = args[0];
        String serviceArn = args[1];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        deleteSpecificService(ecsClient, clusterName, serviceArn);
        ecsClient.close();
    }

    public static void deleteSpecificService(EcsClient ecsClient, String clusterName, String serviceArn) {
        try {
            DeleteServiceRequest serviceRequest = DeleteServiceRequest.builder()
                    .cluster(clusterName)
                    .service(serviceArn)
                    .build();

            ecsClient.deleteService(serviceRequest);
            System.out.println("The Service was successfully deleted");

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • Per informazioni dettagliate sull’API, consulta DeleteService nella documentazione di riferimento dell’API AWS SDK for Java 2.x.

L’esempio di codice seguente mostra come utilizzare DescribeClusters.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DescribeClustersRequest;
import software.amazon.awssdk.services.ecs.model.DescribeClustersResponse;
import software.amazon.awssdk.services.ecs.model.Cluster;
import software.amazon.awssdk.services.ecs.model.EcsException;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DescribeClusters {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <clusterArn> \s

                Where:
                  clusterArn - The ARN of the ECS cluster to describe.
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterArn = args[0];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        descCluster(ecsClient, clusterArn);
    }

    public static void descCluster(EcsClient ecsClient, String clusterArn) {
        try {
            DescribeClustersRequest clustersRequest = DescribeClustersRequest.builder()
                    .clusters(clusterArn)
                    .build();

            DescribeClustersResponse response = ecsClient.describeClusters(clustersRequest);
            List<Cluster> clusters = response.clusters();
            for (Cluster cluster : clusters) {
                System.out.println("The cluster name is " + cluster.clusterName());
            }

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • Per informazioni dettagliate sull’API, consulta DescribeClusters nella documentazione di riferimento dell’API AWS SDK for Java 2.x.

L’esempio di codice seguente mostra come utilizzare DescribeTasks.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.DescribeTasksRequest;
import software.amazon.awssdk.services.ecs.model.DescribeTasksResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;
import software.amazon.awssdk.services.ecs.model.Task;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class ListTaskDefinitions {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                  <clusterArn> <taskId>\s

                Where:
                  clusterArn - The ARN of an ECS cluster.
                  taskId - The task Id value.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterArn = args[0];
        String taskId = args[1];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        getAllTasks(ecsClient, clusterArn, taskId);
        ecsClient.close();
    }

    public static void getAllTasks(EcsClient ecsClient, String clusterArn, String taskId) {
        try {
            DescribeTasksRequest tasksRequest = DescribeTasksRequest.builder()
                    .cluster(clusterArn)
                    .tasks(taskId)
                    .build();

            DescribeTasksResponse response = ecsClient.describeTasks(tasksRequest);
            List<Task> tasks = response.tasks();
            for (Task task : tasks) {
                System.out.println("The task ARN is " + task.taskDefinitionArn());
            }

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • Per informazioni dettagliate sull’API, consulta DescribeTasks nella documentazione di riferimento dell’API AWS SDK for Java 2.x.

L’esempio di codice seguente mostra come utilizzare ListClusters.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.ListClustersResponse;
import software.amazon.awssdk.services.ecs.model.EcsException;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */

public class ListClusters {
    public static void main(String[] args) {
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        listAllClusters(ecsClient);
        ecsClient.close();
    }

    public static void listAllClusters(EcsClient ecsClient) {
        try {
            ListClustersResponse response = ecsClient.listClusters();
            List<String> clusters = response.clusterArns();
            for (String cluster : clusters) {
                System.out.println("The cluster arn is " + cluster);
            }

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • Per informazioni dettagliate sull’API, consulta ListClusters nella documentazione di riferimento dell’API AWS SDK for Java 2.x.

L’esempio di codice seguente mostra come utilizzare UpdateService.

SDK per Java 2.x
Nota

Ulteriori informazioni su GitHub. Trova l’esempio completo e scopri di più sulla configurazione e l’esecuzione nel Repository di esempi di codice AWS. 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ecs.EcsClient;
import software.amazon.awssdk.services.ecs.model.EcsException;
import software.amazon.awssdk.services.ecs.model.UpdateServiceRequest;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */

public class UpdateService {

    public static void main(String[] args) {

        final String usage = """

                Usage:
                   <clusterName> <serviceArn>\s

                Where:
                  clusterName - The cluster name.
                  serviceArn - The service ARN value.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String clusterName = args[0];
        String serviceArn = args[1];
        Region region = Region.US_EAST_1;
        EcsClient ecsClient = EcsClient.builder()
                .region(region)
                .build();

        updateSpecificService(ecsClient, clusterName, serviceArn);
        ecsClient.close();
    }

    public static void updateSpecificService(EcsClient ecsClient, String clusterName, String serviceArn) {
        try {
            UpdateServiceRequest serviceRequest = UpdateServiceRequest.builder()
                    .cluster(clusterName)
                    .service(serviceArn)
                    .desiredCount(0)
                    .build();

            ecsClient.updateService(serviceRequest);
            System.out.println("The service was modified");

        } catch (EcsException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

  • Per informazioni dettagliate sull’API, consulta UpdateService nella documentazione di riferimento dell’API AWS SDK for Java 2.x.