本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。 # `AttachLoadBalancerTargetGroups`与 AWS SDK 或 CLI 配合使用 以下代码示例演示如何使用 `AttachLoadBalancerTargetGroups`。 操作示例是大型程序的代码摘录，必须在上下文中运行。在以下代码示例中，您可以查看此操作的上下文： + [构建和管理弹性服务](example_cross_ResilientService_section.md) ------ #### [ .NET ] **适用于 .NET 的 SDK** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/cross-service/ResilientService/AutoScalerActions#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` /// /// Attaches an Elastic Load Balancing (ELB) target group to this EC2 Auto Scaling group. /// The /// /// The name of the Auto Scaling group. /// The Arn for the target group. /// Async task. public async Task AttachLoadBalancerToGroup(string autoScalingGroupName, string targetGroupArn) { await _amazonAutoScaling.AttachLoadBalancerTargetGroupsAsync( new AttachLoadBalancerTargetGroupsRequest() { AutoScalingGroupName = autoScalingGroupName, TargetGroupARNs = new List() { targetGroupArn } }); } ``` + 有关 API 的详细信息，请参阅 *适用于 .NET 的 AWS SDK API 参考[AttachLoadBalancerTargetGroups](https://docs.aws.amazon.com/goto/DotNetSDKV3/autoscaling-2011-01-01/AttachLoadBalancerTargetGroups)*中的。 ------ #### [ CLI ] **AWS CLI** **将目标组附加到自动扩缩组** 此示例将指定目标组附加到指定的自动扩缩组。 ``` aws autoscaling attach-load-balancer-target-groups \ --auto-scaling-group-name my-asg \ --target-group-arns arn:aws:elasticloadbalancing:us-west-2:123456789012:targetgroup/my-targets/73e2d6bc24d8a067 ``` 此命令不生成任何输出。 有关更多信息，请参阅《Amazon EC2 Auto Scaling 用户指南》**中的[弹性负载均衡和 Amazon EC2 Auto Scaling](https://docs.aws.amazon.com/autoscaling/ec2/userguide/autoscaling-load-balancer.html)。 + 有关 API 的详细信息，请参阅*AWS CLI 命令参考[AttachLoadBalancerTargetGroups](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/autoscaling/attach-load-balancer-target-groups.html)*中的。 ------ #### [ JavaScript ] **适用于 JavaScript (v3) 的软件开发工具包** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cross-services/wkflw-resilient-service#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` const client = new AutoScalingClient({}); await client.send( new AttachLoadBalancerTargetGroupsCommand({ AutoScalingGroupName: NAMES.autoScalingGroupName, TargetGroupARNs: [state.targetGroupArn], }), ); ``` + 有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[AttachLoadBalancerTargetGroups](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/auto-scaling/command/AttachLoadBalancerTargetGroupsCommand)*中的。 ------ #### [ Python ] **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/auto-scaling#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` class AutoScalingWrapper: """ Encapsulates Amazon EC2 Auto Scaling and EC2 management actions. """ def __init__( self, resource_prefix: str, inst_type: str, ami_param: str, autoscaling_client: boto3.client, ec2_client: boto3.client, ssm_client: boto3.client, iam_client: boto3.client, ): """ Initializes the AutoScaler class with the necessary parameters. :param resource_prefix: The prefix for naming AWS resources that are created by this class. :param inst_type: The type of EC2 instance to create, such as t3.micro. :param ami_param: The Systems Manager parameter used to look up the AMI that is created. :param autoscaling_client: A Boto3 EC2 Auto Scaling client. :param ec2_client: A Boto3 EC2 client. :param ssm_client: A Boto3 Systems Manager client. :param iam_client: A Boto3 IAM client. """ self.inst_type = inst_type self.ami_param = ami_param self.autoscaling_client = autoscaling_client self.ec2_client = ec2_client self.ssm_client = ssm_client self.iam_client = iam_client sts_client = boto3.client("sts") self.account_id = sts_client.get_caller_identity()["Account"] self.key_pair_name = f"{resource_prefix}-key-pair" self.launch_template_name = f"{resource_prefix}-template-" self.group_name = f"{resource_prefix}-group" # Happy path self.instance_policy_name = f"{resource_prefix}-pol" self.instance_role_name = f"{resource_prefix}-role" self.instance_profile_name = f"{resource_prefix}-prof" # Failure mode self.bad_creds_policy_name = f"{resource_prefix}-bc-pol" self.bad_creds_role_name = f"{resource_prefix}-bc-role" self.bad_creds_profile_name = f"{resource_prefix}-bc-prof" def attach_load_balancer_target_group( self, lb_target_group: Dict[str, Any] ) -> None: """ Attaches an Elastic Load Balancing (ELB) target group to this EC2 Auto Scaling group. The target group specifies how the load balancer forwards requests to the instances in the group. :param lb_target_group: Data about the ELB target group to attach. """ try: self.autoscaling_client.attach_load_balancer_target_groups( AutoScalingGroupName=self.group_name, TargetGroupARNs=[lb_target_group["TargetGroupArn"]], ) log.info( "Attached load balancer target group %s to auto scaling group %s.", lb_target_group["TargetGroupName"], self.group_name, ) except ClientError as err: error_code = err.response["Error"]["Code"] log.error( f"Failed to attach load balancer target group '{lb_target_group['TargetGroupName']}'." ) if error_code == "ResourceContentionFault": log.error( "The request failed due to a resource contention issue. " "Ensure that no conflicting operations are being performed on the resource." ) elif error_code == "ServiceLinkedRoleFailure": log.error( "The operation failed because the service-linked role is not ready or does not exist. " "Check that the service-linked role exists and is correctly configured." ) log.error(f"Full error:\n\t{err}") ``` + 有关 API 的详细信息，请参阅适用[AttachLoadBalancerTargetGroups](https://docs.aws.amazon.com/goto/boto3/autoscaling-2011-01-01/AttachLoadBalancerTargetGroups)于 *Python 的AWS SDK (Boto3) API 参考*。 ------ 有关 S AWS DK 开发者指南和代码示例的完整列表，请参阅[将此服务与 AWS SDK 配合使用](sdk-general-information-section.md)。本主题还包括有关入门的信息以及有关先前的 SDK 版本的详细信息。