搭ReplaceIamInstanceProfileAssociation配 AWS 開發套件或 CLI 使用 - Amazon Elastic Compute Cloud

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

搭ReplaceIamInstanceProfileAssociation配 AWS 開發套件或 CLI 使用

下列程式碼範例會示範如何使用ReplaceIamInstanceProfileAssociation。

動作範例是大型程式的程式碼摘錄，必須在內容中執行。您可以在下列程式碼範例的內容中看到此動作：

.NET
AWS SDK for .NET
注意

還有更多關於 GitHub。尋找完整範例，並了解如何在AWS 設定和執行程式碼範例儲存庫。

    /// <summary>
    /// Replace the profile associated with a running instance. After the profile is replaced, the instance
    /// is rebooted to ensure that it uses the new profile. When the instance is ready, Systems Manager is
    /// used to restart the Python web server.
    /// </summary>
    /// <param name="instanceId">The Id of the instance to update.</param>
    /// <param name="credsProfileName">The name of the new profile to associate with the specified instance.</param>
    /// <param name="associationId">The Id of the existing profile association for the instance.</param>
    /// <returns>Async task.</returns>
    public async Task ReplaceInstanceProfile(string instanceId, string credsProfileName, string associationId)
    {
        await _amazonEc2.ReplaceIamInstanceProfileAssociationAsync(
                new ReplaceIamInstanceProfileAssociationRequest()
                {
                    AssociationId = associationId,
                    IamInstanceProfile = new IamInstanceProfileSpecification()
                    {
                        Name = credsProfileName
                    }
                });
        // Allow time before resetting.
        Thread.Sleep(25000);
        var instanceReady = false;
        var retries = 5;
        while (retries-- > 0 && !instanceReady)
        {
            await _amazonEc2.RebootInstancesAsync(
                new RebootInstancesRequest(new List<string>() { instanceId }));
            Thread.Sleep(10000);

            var instancesPaginator = _amazonSsm.Paginators.DescribeInstanceInformation(
                new DescribeInstanceInformationRequest());
            // Get the entire list using the paginator.
            await foreach (var instance in instancesPaginator.InstanceInformationList)
            {
                instanceReady = instance.InstanceId == instanceId;
                if (instanceReady)
                {
                    break;
                }
            }
        }
        Console.WriteLine($"Sending restart command to instance {instanceId}");
        await _amazonSsm.SendCommandAsync(
            new SendCommandRequest()
            {
                InstanceIds = new List<string>() { instanceId },
                DocumentName = "AWS-RunShellScript",
                Parameters = new Dictionary<string, List<string>>()
                {
                        {"commands", new List<string>() { "cd / && sudo python3 server.py 80" }}
                }
            });
        Console.WriteLine($"Restarted the web server on instance {instanceId}");
    }
CLI
AWS CLI

取代執行個體的 IAM 執行個體設定檔

此範例會取代以與名為 AdminRole 的 IAM 執行個體設定檔之關聯 iip-assoc-060bae234aac2e7fa 所表示的 IAM 執行個體設定檔。

aws ec2 replace-iam-instance-profile-association \
    --iam-instance-profile Name=AdminRole \
    --association-id iip-assoc-060bae234aac2e7fa

輸出：

{
    "IamInstanceProfileAssociation": {
        "InstanceId": "i-087711ddaf98f9489",
        "State": "associating",
        "AssociationId": "iip-assoc-0b215292fab192820",
        "IamInstanceProfile": {
            "Id": "AIPAJLNLDX3AMYZNWYYAY",
            "Arn": "arn:aws:iam::123456789012:instance-profile/AdminRole"
        }
    }
}
JavaScript
適用於 JavaScript (v3) 的開發套件
注意

還有更多關於 GitHub。尋找完整範例，並了解如何在AWS 設定和執行程式碼範例儲存庫。

      await retry({ intervalInMs: 1000, maxRetries: 30 }, () =>
        ec2Client.send(
          new ReplaceIamInstanceProfileAssociationCommand({
            AssociationId: state.instanceProfileAssociationId,
            IamInstanceProfile: { Name: NAMES.ssmOnlyInstanceProfileName },
          }),
        ),
      );
Python
適用於 Python (Boto3) 的 SDK
注意

還有更多關於 GitHub。尋找完整範例，並了解如何在AWS 設定和執行程式碼範例儲存庫。

此範例會取代執行中執行個體的執行個體設定檔、重新啟動執行個體，並在執行個體啟動後傳送命令至執行個體。

class AutoScaler:
    """
    Encapsulates Amazon EC2 Auto Scaling and EC2 management actions.
    """

    def __init__(
        self,
        resource_prefix,
        inst_type,
        ami_param,
        autoscaling_client,
        ec2_client,
        ssm_client,
        iam_client,
    ):
        """
        :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
        self.launch_template_name = f"{resource_prefix}-template"
        self.group_name = f"{resource_prefix}-group"
        self.instance_policy_name = f"{resource_prefix}-pol"
        self.instance_role_name = f"{resource_prefix}-role"
        self.instance_profile_name = f"{resource_prefix}-prof"
        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"
        self.key_pair_name = f"{resource_prefix}-key-pair"


    def replace_instance_profile(
        self, instance_id, new_instance_profile_name, profile_association_id
    ):
        """
        Replaces the profile associated with a running instance. After the profile is
        replaced, the instance is rebooted to ensure that it uses the new profile. When
        the instance is ready, Systems Manager is used to restart the Python web server.

        :param instance_id: The ID of the instance to update.
        :param new_instance_profile_name: The name of the new profile to associate with
                                          the specified instance.
        :param profile_association_id: The ID of the existing profile association for the
                                       instance.
        """
        try:
            self.ec2_client.replace_iam_instance_profile_association(
                IamInstanceProfile={"Name": new_instance_profile_name},
                AssociationId=profile_association_id,
            )
            log.info(
                "Replaced instance profile for association %s with profile %s.",
                profile_association_id,
                new_instance_profile_name,
            )
            time.sleep(5)
            inst_ready = False
            tries = 0
            while not inst_ready:
                if tries % 6 == 0:
                    self.ec2_client.reboot_instances(InstanceIds=[instance_id])
                    log.info(
                        "Rebooting instance %s and waiting for it to to be ready.",
                        instance_id,
                    )
                tries += 1
                time.sleep(10)
                response = self.ssm_client.describe_instance_information()
                for info in response["InstanceInformationList"]:
                    if info["InstanceId"] == instance_id:
                        inst_ready = True
            self.ssm_client.send_command(
                InstanceIds=[instance_id],
                DocumentName="AWS-RunShellScript",
                Parameters={"commands": ["cd / && sudo python3 server.py 80"]},
            )
            log.info("Restarted the Python web server on instance %s.", instance_id)
        except ClientError as err:
            raise AutoScalerError(
                f"Couldn't replace instance profile for association {profile_association_id}: {err}"
            )

如需 AWS SDK 開發人員指南和程式碼範例的完整清單，請參閱使用 AWS 開發套件建立 Amazon EC2 資源。此主題也包含有關入門的資訊和舊版 SDK 的詳細資訊。