UpdateAutoScalingGroup与 AWS SDK 或 CLI 配合使用

    /// <summary>
    /// Update the capacity of an Auto Scaling group.
    /// </summary>
    /// <param name="groupName">The name of the Auto Scaling group.</param>
    /// <param name="launchTemplateName">The name of the EC2 launch template.</param>
    /// <param name="maxSize">The maximum number of instances that can be
    /// created for the Auto Scaling group.</param>
    /// <returns>A Boolean value indicating the success of the action.</returns>
    public async Task<bool> UpdateAutoScalingGroupAsync(
        string groupName,
        string launchTemplateName,
        int maxSize)
    {
        var templateSpecification = new LaunchTemplateSpecification
        {
            LaunchTemplateName = launchTemplateName,
        };

        var groupRequest = new UpdateAutoScalingGroupRequest
        {
            MaxSize = maxSize,
            AutoScalingGroupName = groupName,
            LaunchTemplate = templateSpecification,
        };

        var response = await _amazonAutoScaling.UpdateAutoScalingGroupAsync(groupRequest);
        if (response.HttpStatusCode == System.Net.HttpStatusCode.OK)
        {
            Console.WriteLine($"You successfully updated the Auto Scaling group {groupName}.");
            return true;
        }
        else
        {
            return false;
        }
    }

        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region (overrides config file).
        // clientConfig.region = "us-east-1";

    Aws::AutoScaling::AutoScalingClient autoScalingClient(clientConfig);

        Aws::AutoScaling::Model::UpdateAutoScalingGroupRequest request;
        request.SetAutoScalingGroupName(groupName);
        request.SetMaxSize(3);

        Aws::AutoScaling::Model::UpdateAutoScalingGroupOutcome outcome =
                autoScalingClient.UpdateAutoScalingGroup(request);

        if (!outcome.IsSuccess()) {
            std::cerr << "Error with AutoScaling::UpdateAutoScalingGroup. "
                      << outcome.GetError().GetMessage()
                      << std::endl;

        }

示例 1：更新自动扩缩组的大小限制

该示例更新指定的自动扩缩组，该组的最小大小为 1，最大大小为 10。

aws autoscaling update-auto-scaling-group \
    --auto-scaling-group-name my-asg \
    --min-size 2 \
    --max-size 10

此命令不生成任何输出。

有关更多信息，请参阅 Amazon Auto Scaling 用户指南中的为 Aut EC2 o S caling 组设置容量限制。

示例 2：添加 Elastic Load Balancing 运行状况检查并指定要使用的可用区和子网

此示例更新指定的自动扩缩组以添加 Elastic Load Balancing 运行状况检查。此命令还会--vpc-zone-identifier使用多个可用区 IDs 中的子网列表更新的值。

aws autoscaling update-auto-scaling-group \
    --auto-scaling-group-name my-asg \
    --health-check-type ELB \
    --health-check-grace-period 600 \
    --vpc-zone-identifier "subnet-5ea0c127,subnet-6194ea3b,subnet-c934b782"

此命令不生成任何输出。

有关更多信息，请参阅 Amazon A EC2 uto Scaling 用户指南中的 Elastic Load Balancing 和 Amazon A EC2 uto Scaling。

示例 3：更新置放群组和终止策略

此示例更新要使用的置放群组和终止策略。

aws autoscaling update-auto-scaling-group \
    --auto-scaling-group-name my-asg \
    --placement-group my-placement-group \
    --termination-policies "OldestInstance"

此命令不生成任何输出。

有关更多信息，请参阅 Amazon Auto Scaling 用户指南中的 A EC2 uto Scaling 群组。

示例 4：使用最新版本的启动模板

此示例将指定的自动扩缩组更新为使用最新版本的指定启动模板。

aws autoscaling update-auto-scaling-group \
    --auto-scaling-group-name my-asg \
    --launch-template LaunchTemplateId=lt-1234567890abcde12,Version='$Latest'

此命令不生成任何输出。

有关更多信息，请参阅 Amazon A EC2 uto Scaling 用户指南中的启动模板。

示例 5：使用特定版本的启动模板

此示例将指定的自动扩缩组更新为使用特定版本的启动模板，而不是最新或默认版本。

aws autoscaling update-auto-scaling-group \
    --auto-scaling-group-name my-asg \
    --launch-template LaunchTemplateName=my-template-for-auto-scaling,Version='2'

此命令不生成任何输出。

有关更多信息，请参阅 Amazon A EC2 uto Scaling 用户指南中的启动模板。

示例 6：定义混合实例策略并启用容量再平衡

此示例将指定的自动扩缩组更新为使用混合实例策略并启用容量再平衡。此结构允许您指定具有竞价和按需容量的组，并针对不同的架构使用不同的启动模板。

aws autoscaling update-auto-scaling-group \
    --cli-input-json file://~/config.json

config.json 的内容：

{
    "AutoScalingGroupName": "my-asg",
    "CapacityRebalance": true,
    "MixedInstancesPolicy": {
        "LaunchTemplate": {
            "LaunchTemplateSpecification": {
                "LaunchTemplateName": "my-launch-template-for-x86",
                "Version": "$Latest"
            },
            "Overrides": [
                {
                    "InstanceType": "c6g.large",
                    "LaunchTemplateSpecification": {
                        "LaunchTemplateName": "my-launch-template-for-arm",
                        "Version": "$Latest"
                    }
                },
                {
                    "InstanceType": "c5.large"
                },
                {
                    "InstanceType": "c5a.large"
                }
            ]
        },
        "InstancesDistribution": {
            "OnDemandPercentageAboveBaseCapacity": 50,
            "SpotAllocationStrategy": "capacity-optimized"
        }
    }
}

此命令不生成任何输出。

有关更多信息，请参阅 A mazon Auto Scaling 用户指南中的具有多种实例类型和购买选项的 A EC2 uto Scaling 群组。

    public static void updateAutoScalingGroup(AutoScalingClient autoScalingClient, String groupName,
            String launchTemplateName) {
        try {
            AutoScalingWaiter waiter = autoScalingClient.waiter();
            LaunchTemplateSpecification templateSpecification = LaunchTemplateSpecification.builder()
                    .launchTemplateName(launchTemplateName)
                    .build();

            UpdateAutoScalingGroupRequest groupRequest = UpdateAutoScalingGroupRequest.builder()
                    .maxSize(3)
                    .autoScalingGroupName(groupName)
                    .launchTemplate(templateSpecification)
                    .build();

            autoScalingClient.updateAutoScalingGroup(groupRequest);
            DescribeAutoScalingGroupsRequest groupsRequest = DescribeAutoScalingGroupsRequest.builder()
                    .autoScalingGroupNames(groupName)
                    .build();

            WaiterResponse<DescribeAutoScalingGroupsResponse> waiterResponse = waiter
                    .waitUntilGroupInService(groupsRequest);
            waiterResponse.matched().response().ifPresent(System.out::println);
            System.out.println("You successfully updated the auto scaling group  " + groupName);

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

suspend fun updateAutoScalingGroup(
    groupName: String,
    launchTemplateNameVal: String,
    serviceLinkedRoleARNVal: String,
) {
    val templateSpecification =
        LaunchTemplateSpecification {
            launchTemplateName = launchTemplateNameVal
        }

    val groupRequest =
        UpdateAutoScalingGroupRequest {
            maxSize = 3
            serviceLinkedRoleArn = serviceLinkedRoleARNVal
            autoScalingGroupName = groupName
            launchTemplate = templateSpecification
        }

    val groupsRequestWaiter =
        DescribeAutoScalingGroupsRequest {
            autoScalingGroupNames = listOf(groupName)
        }

    AutoScalingClient { region = "us-east-1" }.use { autoScalingClient ->
        autoScalingClient.updateAutoScalingGroup(groupRequest)
        autoScalingClient.waitUntilGroupExists(groupsRequestWaiter)
        println("You successfully updated the Auto Scaling group  $groupName")
    }
}

    public function updateAutoScalingGroup($autoScalingGroupName, $args)
    {
        if (array_key_exists('MaxSize', $args)) {
            $maxSize = ['MaxSize' => $args['MaxSize']];
        } else {
            $maxSize = [];
        }
        if (array_key_exists('MinSize', $args)) {
            $minSize = ['MinSize' => $args['MinSize']];
        } else {
            $minSize = [];
        }
        $parameters = ['AutoScalingGroupName' => $autoScalingGroupName];
        $parameters = array_merge($parameters, $minSize, $maxSize);
        return $this->autoScalingClient->updateAutoScalingGroup($parameters);
    }

示例 1：此示例更新指定自动扩缩组的最小和最大大小。

Update-ASAutoScalingGroup -AutoScalingGroupName my-asg -MaxSize 5 -MinSize 1

示例 2：此示例更新指定自动扩缩组的默认冷却时间。

Update-ASAutoScalingGroup -AutoScalingGroupName my-asg -DefaultCooldown 10

示例 3：此示例更新指定自动扩缩组的可用区。

Update-ASAutoScalingGroup -AutoScalingGroupName my-asg -AvailabilityZone @("us-west-2a", "us-west-2b")

示例 4：此示例更新指定的自动扩缩组以使用 Elastic Load Balancing 运行状况检查。

Update-ASAutoScalingGroup -AutoScalingGroupName my-asg -HealthCheckType ELB -HealthCheckGracePeriod 60

class AutoScalingWrapper:
    """Encapsulates Amazon EC2 Auto Scaling actions."""

    def __init__(self, autoscaling_client):
        """
        :param autoscaling_client: A Boto3 Amazon EC2 Auto Scaling client.
        """
        self.autoscaling_client = autoscaling_client


    def update_group(self, group_name: str, **kwargs: Any) -> None:
        """
        Updates an Auto Scaling group.

        :param group_name: The name of the group to update.
        :param kwargs: Keyword arguments to pass through to the service.
        :return: None
        :raises ClientError: If there is an error updating the Auto Scaling group.
        """
        try:
            self.autoscaling_client.update_auto_scaling_group(
                AutoScalingGroupName=group_name, **kwargs
            )
            logger.info(f"Successfully updated Auto Scaling group {group_name}.")

        except ClientError as err:
            error_code = err.response["Error"]["Code"]
            logger.error(f"Failed to update Auto Scaling group {group_name}.")
            if error_code == "ResourceInUse":
                logger.error(
                    "The Auto Scaling group '%s' is currently in use and cannot be modified. Please try again later.",
                    group_name,
                )
            elif error_code == "ScalingActivityInProgress":
                logger.error(
                    f"A scaling activity is currently in progress for the Auto Scaling group '{group_name}'."
                    "Please wait for the activity to complete before attempting to update the group."
                )
            logger.error(f"Full error:\n\t{err}")
            raise

async fn update_group(client: &Client, name: &str, size: i32) -> Result<(), Error> {
    client
        .update_auto_scaling_group()
        .auto_scaling_group_name(name)
        .max_size(size)
        .send()
        .await?;

    println!("Updated AutoScaling group");

    Ok(())
}