Amazon ECS examples using SDK for Java 2.x
The following code examples show you how to perform actions and implement common scenarios by using the Amazon SDK for Java 2.x with Amazon ECS.
Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios.
Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.
Topics
Actions
The following code example shows how to use CreateCluster
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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 ""; } }
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For API details, see CreateCluster in Amazon SDK for Java 2.x API Reference.
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The following code example shows how to use CreateService
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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 ""; } }
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For API details, see CreateService in Amazon SDK for Java 2.x API Reference.
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The following code example shows how to use DeleteService
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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); } } }
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For API details, see DeleteService in Amazon SDK for Java 2.x API Reference.
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The following code example shows how to use DescribeClusters
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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); } } }
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For API details, see DescribeClusters in Amazon SDK for Java 2.x API Reference.
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The following code example shows how to use DescribeTasks
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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); } } }
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For API details, see DescribeTasks in Amazon SDK for Java 2.x API Reference.
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The following code example shows how to use ListClusters
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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); } } }
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For API details, see ListClusters in Amazon SDK for Java 2.x API Reference.
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The following code example shows how to use UpdateService
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. 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); } } }
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For API details, see UpdateService in Amazon SDK for Java 2.x API Reference.
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