AssociateAddress 搭配 a AWS SDK 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。

AssociateAddress 搭配 a AWS SDK 或 CLI 使用

下列程式碼範例示範如何使用 AssociateAddress

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 on GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

/// <summary> /// Associates an Elastic IP address with an instance. When this association is /// created, the Elastic IP's public IP address is immediately used as the public /// IP address of the associated instance. /// </summary> /// <param name="allocationId">The allocation Id of an Elastic IP address.</param> /// <param name="instanceId">The instance Id of the EC2 instance to /// associate the address with.</param> /// <returns>The association Id that represents /// the association of the Elastic IP address with an instance.</returns> public async Task<string> AssociateAddress(string allocationId, string instanceId) { try { var request = new AssociateAddressRequest { AllocationId = allocationId, InstanceId = instanceId }; var response = await _amazonEC2.AssociateAddressAsync(request); return response.AssociationId; } catch (AmazonEC2Exception ec2Exception) { if (ec2Exception.ErrorCode == "InvalidInstanceId") { _logger.LogError( $"InstanceId is invalid, unable to associate address. {ec2Exception.Message}"); } throw; } catch (Exception ex) { _logger.LogError( $"An error occurred while associating the Elastic IP.: {ex.Message}"); throw; } }
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for .NET 參考中的 API

Bash
AWS CLI 使用 Bash 指令碼
注意

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

############################################################################### # function ec2_associate_address # # This function associates an Elastic IP address with an Amazon Elastic Compute Cloud (Amazon EC2) instance. # # Parameters: # -a allocation_id - The allocation ID of the Elastic IP address to associate. # -i instance_id - The ID of the EC2 instance to associate the Elastic IP address with. # # Returns: # 0 - If successful. # 1 - If it fails. # ############################################################################### function ec2_associate_address() { local allocation_id instance_id response # Function to display usage information function usage() { echo "function ec2_associate_address" echo "Associates an Elastic IP address with an Amazon Elastic Compute Cloud (Amazon EC2) instance." echo " -a allocation_id - The allocation ID of the Elastic IP address to associate." echo " -i instance_id - The ID of the EC2 instance to associate the Elastic IP address with." echo "" } # Parse the command-line arguments while getopts "a:i:h" option; do case "${option}" in a) allocation_id="${OPTARG}" ;; i) instance_id="${OPTARG}" ;; h) usage return 0 ;; \?) echo "Invalid parameter" usage return 1 ;; esac done export OPTIND=1 # Validate the input parameters if [[ -z "$allocation_id" ]]; then errecho "ERROR: You must provide an allocation ID with the -a parameter." return 1 fi if [[ -z "$instance_id" ]]; then errecho "ERROR: You must provide an instance ID with the -i parameter." return 1 fi # Associate the Elastic IP address response=$(aws ec2 associate-address \ --allocation-id "$allocation_id" \ --instance-id "$instance_id" \ --query "AssociationId" \ --output text) || { aws_cli_error_log ${?} errecho "ERROR: AWS reports associate-address operation failed." errecho "$response" return 1 } echo "$response" return 0 }

此範例中使用的公用程式函數。

############################################################################### # function errecho # # This function outputs everything sent to it to STDERR (standard error output). ############################################################################### function errecho() { printf "%s\n" "$*" 1>&2 } ############################################################################## # function aws_cli_error_log() # # This function is used to log the error messages from the AWS CLI. # # The function expects the following argument: # $1 - The error code returned by the AWS CLI. # # Returns: # 0: - Success. # ############################################################################## function aws_cli_error_log() { local err_code=$1 errecho "Error code : $err_code" if [ "$err_code" == 1 ]; then errecho " One or more S3 transfers failed." elif [ "$err_code" == 2 ]; then errecho " Command line failed to parse." elif [ "$err_code" == 130 ]; then errecho " Process received SIGINT." elif [ "$err_code" == 252 ]; then errecho " Command syntax invalid." elif [ "$err_code" == 253 ]; then errecho " The system environment or configuration was invalid." elif [ "$err_code" == 254 ]; then errecho " The service returned an error." elif [ "$err_code" == 255 ]; then errecho " 255 is a catch-all error." fi return 0 }
  • 如需 API 詳細資訊,請參閱 AWS CLI 命令參考中的 AssociateAddress

C++
C++ 的 SDK
注意

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

Aws::EC2::EC2Client ec2Client(clientConfiguration); //! Associate an Elastic IP address with an EC2 instance. /*! \param instanceId: An EC2 instance ID. \param allocationId: An Elastic IP allocation ID. \param[out] associationID: String to receive the association ID. \param clientConfiguration: AWS client configuration. \return bool: True if the address was associated with the instance; otherwise, false. */ bool AwsDoc::EC2::associateAddress(const Aws::String &instanceId, const Aws::String &allocationId, Aws::String &associationID, const Aws::Client::ClientConfiguration &clientConfiguration) { Aws::EC2::EC2Client ec2Client(clientConfiguration); Aws::EC2::Model::AssociateAddressRequest request; request.SetInstanceId(instanceId); request.SetAllocationId(allocationId); Aws::EC2::Model::AssociateAddressOutcome outcome = ec2Client.AssociateAddress(request); if (!outcome.IsSuccess()) { std::cerr << "Failed to associate address " << allocationId << " with instance " << instanceId << ": " << outcome.GetError().GetMessage() << std::endl; } else { std::cout << "Successfully associated address " << allocationId << " with instance " << instanceId << std::endl; associationID = outcome.GetResult().GetAssociationId(); } return outcome.IsSuccess(); }
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for C++ 參考中的 API

CLI
AWS CLI

在 EC2-Classic 中關聯彈性 IP 地址

此範例會將彈性 IP 地址與 EC2-Classic 中的執行個體建立關聯。如果命令成功,則不會傳回任何輸出。

命令:

aws ec2 associate-address --instance-id i-07ffe74c7330ebf53 --public-ip 198.51.100.0

在 EC2-VPC 中建立彈性 IP 地址的關聯

此範例會將彈性 IP 地址與 VPC 中的執行個體建立關聯。

命令:

aws ec2 associate-address --instance-id i-0b263919b6498b123 --allocation-id eipalloc-64d5890a

輸出:

{ "AssociationId": "eipassoc-2bebb745" }

此範例會將彈性 IP 地址與網路介面建立關聯。

命令:

aws ec2 associate-address --allocation-id eipalloc-64d5890a --network-interface-id eni-1a2b3c4d

此範例會將彈性 IP 地址與已和網路介面相關聯的私有 IP 地址建立關聯。

命令:

aws ec2 associate-address --allocation-id eipalloc-64d5890a --network-interface-id eni-1a2b3c4d --private-ip-address 10.0.0.85
  • 如需 API 詳細資訊,請參閱 AWS CLI 命令參考中的 AssociateAddress

Java
Java 2.x 的 SDK
注意

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

/** * Associates an Elastic IP address with an EC2 instance asynchronously. * * @param instanceId the ID of the EC2 instance to associate the Elastic IP address with * @param allocationId the allocation ID of the Elastic IP address to associate * @return a {@link CompletableFuture} that completes with the association ID when the operation is successful, * or throws a {@link RuntimeException} if the operation fails */ public CompletableFuture<String> associateAddressAsync(String instanceId, String allocationId) { AssociateAddressRequest associateRequest = AssociateAddressRequest.builder() .instanceId(instanceId) .allocationId(allocationId) .build(); CompletableFuture<AssociateAddressResponse> responseFuture = getAsyncClient().associateAddress(associateRequest); return responseFuture.thenApply(response -> { if (response.associationId() != null) { return response.associationId(); } else { throw new RuntimeException("Association ID is null after associating address."); } }).whenComplete((result, ex) -> { if (ex != null) { throw new RuntimeException("Failed to associate address", ex); } }); }
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for Java 2.x 參考中的 API

JavaScript
SDK for JavaScript (v3)
注意

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

import { AssociateAddressCommand, EC2Client } from "@aws-sdk/client-ec2"; /** * Associates an Elastic IP address, or carrier IP address (for instances that are in subnets in Wavelength Zones) * with an instance or a network interface. * @param {{ instanceId: string, allocationId: string }} options */ export const main = async ({ instanceId, allocationId }) => { const client = new EC2Client({}); const command = new AssociateAddressCommand({ // You need to allocate an Elastic IP address before associating it with an instance. // You can do that with the AllocateAddressCommand. AllocationId: allocationId, // You need to create an EC2 instance before an IP address can be associated with it. // You can do that with the RunInstancesCommand. InstanceId: instanceId, }); try { const { AssociationId } = await client.send(command); console.log( `Address with allocation ID ${allocationId} is now associated with instance ${instanceId}.`, `The association ID is ${AssociationId}.`, ); } catch (caught) { if ( caught instanceof Error && caught.name === "InvalidAllocationID.NotFound" ) { console.warn( `${caught.message}. Did you provide the ID of a valid Elastic IP address AllocationId?`, ); } else { throw caught; } } };
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for JavaScript 參考中的 API

Kotlin
Kotlin 的 SDK
注意

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

suspend fun associateAddressSc( instanceIdVal: String?, allocationIdVal: String?, ): String? { val associateRequest = AssociateAddressRequest { instanceId = instanceIdVal allocationId = allocationIdVal } Ec2Client { region = "us-west-2" }.use { ec2 -> val associateResponse = ec2.associateAddress(associateRequest) return associateResponse.associationId } }
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS for Kotlin SDK 參考中的 API

PowerShell
for PowerShell 工具

範例 1:此範例會將指定的彈性 IP 地址與 VPC 中指定的執行個體建立關聯。

C:\> Register-EC2Address -InstanceId i-12345678 -AllocationId eipalloc-12345678

輸出:

eipassoc-12345678

範例 2:此範例會將指定的彈性 IP 地址與 EC2-Classic 中指定的執行個體建立關聯。

C:\> Register-EC2Address -InstanceId i-12345678 -PublicIp 203.0.113.17
  • 如需 API 詳細資訊,請參閱 AWS Tools for PowerShell Cmdlet 參考中的 AssociateAddress

Python
Python 的 SDK (Boto3)
注意

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

class ElasticIpWrapper: """Encapsulates Amazon Elastic Compute Cloud (Amazon EC2) Elastic IP address actions using the client interface.""" class ElasticIp: """Represents an Elastic IP and its associated instance.""" def __init__( self, allocation_id: str, public_ip: str, instance_id: Optional[str] = None ) -> None: """ Initializes the ElasticIp object. :param allocation_id: The allocation ID of the Elastic IP. :param public_ip: The public IP address of the Elastic IP. :param instance_id: The ID of the associated EC2 instance, if any. """ self.allocation_id = allocation_id self.public_ip = public_ip self.instance_id = instance_id def __init__(self, ec2_client: Any) -> None: """ Initializes the ElasticIpWrapper with an EC2 client. :param ec2_client: A Boto3 Amazon EC2 client. This client provides low-level access to AWS EC2 services. """ self.ec2_client = ec2_client self.elastic_ips: List[ElasticIpWrapper.ElasticIp] = [] @classmethod def from_client(cls) -> "ElasticIpWrapper": """ Creates an ElasticIpWrapper instance with a default EC2 client. :return: An instance of ElasticIpWrapper initialized with the default EC2 client. """ ec2_client = boto3.client("ec2") return cls(ec2_client) def associate( self, allocation_id: str, instance_id: str ) -> Union[Dict[str, Any], None]: """ Associates an Elastic IP address with an instance. When this association is created, the Elastic IP's public IP address is immediately used as the public IP address of the associated instance. :param allocation_id: The allocation ID of the Elastic IP. :param instance_id: The ID of the Amazon EC2 instance. :return: A response that contains the ID of the association, or None if no Elastic IP is found. :raises ClientError: If the association fails, such as when the instance ID is not found. """ elastic_ip = self.get_elastic_ip_by_allocation(self.elastic_ips, allocation_id) if elastic_ip is None: logger.info(f"No Elastic IP found with allocation ID {allocation_id}.") return None try: response = self.ec2_client.associate_address( AllocationId=allocation_id, InstanceId=instance_id ) elastic_ip.instance_id = ( instance_id # Track the instance associated with this Elastic IP. ) except ClientError as err: if err.response["Error"]["Code"] == "InvalidInstanceID.NotFound": logger.error( f"Failed to associate Elastic IP {allocation_id} with {instance_id} " "because the specified instance ID does not exist or has not propagated fully. " "Verify the instance ID and try again, or wait a few moments before attempting to " "associate the Elastic IP address." ) raise return response
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for Python (Boto3) Word 參考中的 API

Ruby
Ruby 的 SDK
注意

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

# Associates an Elastic IP address with an Amazon Elastic Compute Cloud # (Amazon EC2) instance. # # Prerequisites: # # - The allocation ID corresponding to the Elastic IP address. # - The Amazon EC2 instance. # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @param allocation_id [String] The ID of the allocation corresponding to # the Elastic IP address. # @param instance_id [String] The ID of the instance. # @return [String] The assocation ID corresponding to the association of the # Elastic IP address to the instance. # @example # puts allocate_elastic_ip_address( # Aws::EC2::Client.new(region: 'us-west-2'), # 'eipalloc-04452e528a66279EX', # 'i-033c48ef067af3dEX') def associate_elastic_ip_address_with_instance( ec2_client, allocation_id, instance_id ) response = ec2_client.associate_address( allocation_id: allocation_id, instance_id: instance_id ) response.association_id rescue StandardError => e puts "Error associating Elastic IP address with instance: #{e.message}" 'Error' end
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for Ruby 參考中的 API

Rust
Rust 的 SDK
注意

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

pub async fn associate_ip_address( &self, allocation_id: &str, instance_id: &str, ) -> Result<AssociateAddressOutput, EC2Error> { let response = self .client .associate_address() .allocation_id(allocation_id) .instance_id(instance_id) .send() .await?; Ok(response) }
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS for Rust SDK 參考中的 API

SAP ABAP
SDK for SAP ABAP
注意

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

TRY. oo_result = lo_ec2->associateaddress( " oo_result is returned for testing purposes. " iv_allocationid = iv_allocation_id iv_instanceid = iv_instance_id ). MESSAGE 'Associated an Elastic IP address with an EC2 instance.' TYPE 'I'. CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception). DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|. MESSAGE lv_error TYPE 'E'. ENDTRY.
  • 如需 API 詳細資訊,請參閱 AssociateAddress AWS SDK for SAP ABAP 參考中的 API

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 建立 Amazon EC2 資源 AWS SDK。本主題也包含有關入門的資訊,以及先前 SDK 版本的詳細資訊。