ManageAmazon EC2实例 - Amazon SDK for Java 2.x
创建 实例启动实例停止实例重启实例描述实例监控实例停止实例监控更多信息
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ManageAmazon EC2实例

创建 实例

创建新的Amazon EC2通过调用 Ec2Client 的实例runInstances方法，为它提供RunInstancesRequest包含Amazon 系统映像 (AMI)要使用和实例类型.

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.InstanceType;
import software.amazon.awssdk.services.ec2.model.RunInstancesRequest;
import software.amazon.awssdk.services.ec2.model.RunInstancesResponse;
import software.amazon.awssdk.services.ec2.model.Tag;
import software.amazon.awssdk.services.ec2.model.CreateTagsRequest;
import software.amazon.awssdk.services.ec2.model.Ec2Exception;

代码 

   public static String createEC2Instance(Ec2Client ec2,String name, String amiId ) {

        RunInstancesRequest runRequest = RunInstancesRequest.builder()
                .imageId(amiId)
                .instanceType(InstanceType.T1_MICRO)
                .maxCount(1)
                .minCount(1)
                .build();

        RunInstancesResponse response = ec2.runInstances(runRequest);
        String instanceId = response.instances().get(0).instanceId();

        Tag tag = Tag.builder()
                .key("Name")
                .value(name)
                .build();

        CreateTagsRequest tagRequest = CreateTagsRequest.builder()
                .resources(instanceId)
                .tags(tag)
                .build();

        try {
            ec2.createTags(tagRequest);
            System.out.printf(
                    "Successfully started EC2 Instance %s based on AMI %s",
                    instanceId, amiId);

          return instanceId;

        } catch (Ec2Exception e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }

        return "";
    }

请参阅 GitHub 上的完整示例。

启动实例

要启动Amazon EC2实例，调用 Ec2ClientstartInstances方法，为它提供StartInstancesRequest包含要启动的实例的 ID。

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.StartInstancesRequest;
import software.amazon.awssdk.services.ec2.model.StopInstancesRequest;

代码 

    public static void startInstance(Ec2Client ec2, String instanceId) {

        StartInstancesRequest request = StartInstancesRequest.builder()
                .instanceIds(instanceId)
                .build();

        ec2.startInstances(request);
        System.out.printf("Successfully started instance %s", instanceId);
    }

请参阅 GitHub 上的完整示例。

停止实例

要停止Amazon EC2实例，调用 Ec2ClientstopInstances方法，为它提供StopInstancesRequest包含要停止的实例的 ID。

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.StartInstancesRequest;
import software.amazon.awssdk.services.ec2.model.StopInstancesRequest;

代码 

    public static void stopInstance(Ec2Client ec2, String instanceId) {

        StopInstancesRequest request = StopInstancesRequest.builder()
                .instanceIds(instanceId)
                .build();

        ec2.stopInstances(request);
        System.out.printf("Successfully stopped instance %s", instanceId);
    }

请参阅 GitHub 上的完整示例。

重启实例

要重启Amazon EC2实例，调用 Ec2ClientrebootInstances方法，为它提供RebootInstancesRequest包含要重启的实例的 ID。

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.Ec2Exception;
import software.amazon.awssdk.services.ec2.model.RebootInstancesRequest;

代码 

    public static void rebootEC2Instance(Ec2Client ec2, String instanceId) {

      try {
            RebootInstancesRequest request = RebootInstancesRequest.builder()
                .instanceIds(instanceId)
                    .build();

            ec2.rebootInstances(request);
            System.out.printf(
                "Successfully rebooted instance %s", instanceId);
    } catch (Ec2Exception e) {
          System.err.println(e.awsErrorDetails().errorMessage());
          System.exit(1);
     }
  }

请参阅 GitHub 上的完整示例。

描述实例

要列出您的实例，您需要创建DescribeInstancesRequest然后致电 Ec2ClientdescribeInstances方法。该方法将返回 DescribeInstancesResponse 对象，您可以用它来列出您的账户和区域的 Amazon EC2 实例。

实例按预留进行分组。每个预留对应对启动实例的 startInstances 的调用。要列出您的实例，您必须先调用 DescribeInstancesResponse 类的 reservations 方法，然后在每个返回的 instancesReservation 对象上调用 。

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.DescribeInstancesRequest;
import software.amazon.awssdk.services.ec2.model.DescribeInstancesResponse;
import software.amazon.awssdk.services.ec2.model.Instance;
import software.amazon.awssdk.services.ec2.model.Reservation;
import software.amazon.awssdk.services.ec2.model.Ec2Exception;

代码 

    public static void describeEC2Instances( Ec2Client ec2){

        boolean done = false;
        String nextToken = null;

        try {

            do {
                DescribeInstancesRequest request = DescribeInstancesRequest.builder().maxResults(6).nextToken(nextToken).build();
                DescribeInstancesResponse response = ec2.describeInstances(request);

                for (Reservation reservation : response.reservations()) {
                    for (Instance instance : reservation.instances()) {
                        System.out.println("Instance Id is " + instance.instanceId());
                        System.out.println("Image id is "+  instance.imageId());
                        System.out.println("Instance type is "+  instance.instanceType());
                        System.out.println("Instance state name is "+  instance.state().name());
                        System.out.println("monitoring information is "+  instance.monitoring().state());

                }
            }
                nextToken = response.nextToken();
            } while (nextToken != null);

        } catch (Ec2Exception e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }

结果将分页；您可以获取更多结果，方法是将从结果对象的 nextToken 方法返回的值传递到新请求对象的 nextToken 方法，然后在下一个 describeInstances 调用中使用新请求对象。

请参阅 GitHub 上的完整示例。

监控实例

您可以监控 Amazon EC2 实例的各方面，例如 CPU 和网络利用率、可用内存和剩余磁盘空间。要了解有关实例监控的更多信息，请监控Amazon EC2中的Amazon EC2适用于 Linux 实例的用户指南。

要开始监控实例，您必须创建MonitorInstancesRequest要监控的实例的 ID，并将其传递给 Ec2ClientmonitorInstances方法。

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.MonitorInstancesRequest;
import software.amazon.awssdk.services.ec2.model.UnmonitorInstancesRequest;

代码 

    public static void monitorInstance( Ec2Client ec2, String instanceId) {

        MonitorInstancesRequest request = MonitorInstancesRequest.builder()
                .instanceIds(instanceId).build();

        ec2.monitorInstances(request);
        System.out.printf(
                "Successfully enabled monitoring for instance %s",
                instanceId);
    }

请参阅 GitHub 上的完整示例。

停止实例监控

要停止监控实例，请创建UnmonitorInstancesRequest要停止监控的实例的 ID，并将其传递给 Ec2ClientunmonitorInstances方法。

导入 

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.MonitorInstancesRequest;
import software.amazon.awssdk.services.ec2.model.UnmonitorInstancesRequest;

代码 

    public static void unmonitorInstance(Ec2Client ec2, String instanceId) {
        UnmonitorInstancesRequest request = UnmonitorInstancesRequest.builder()
                .instanceIds(instanceId).build();

        ec2.unmonitorInstances(request);

        System.out.printf(
                "Successfully disabled monitoring for instance %s",
                instanceId);
    }

请参阅 GitHub 上的完整示例。

更多信息