AWS 文档 AWS SDK示例 GitHub 存储库中还有更多SDK示例
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。
与 AWS SDK或AllocateAddress
一起使用 CLI
以下代码示例演示如何使用 AllocateAddress
。
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:
- .NET
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- AWS SDK for .NET
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 /// <summary> /// Allocate an Elastic IP address. /// </summary> /// <returns>The allocation Id of the allocated address.</returns> public async Task<string> AllocateAddress() { var request = new AllocateAddressRequest(); var response = await _amazonEC2.AllocateAddressAsync(request); return response.AllocationId; }
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有关API详细信息,请参阅 “AWS SDK for .NET API参考 AllocateAddress” 中的。
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- Bash
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- AWS CLI 使用 Bash 脚本
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 ############################################################################### # function ec2_allocate_address # # This function allocates an Elastic IP address for use with Amazon Elastic Compute Cloud (Amazon EC2) instances in a specific AWS Region. # # Parameters: # -d domain - The domain for the Elastic IP address (either 'vpc' or 'standard'). # # Returns: # The allocated Elastic IP address, or an error message if the operation fails. # And: # 0 - If successful. # 1 - If it fails. # ############################################################################### function ec2_allocate_address() { local domain response # Function to display usage information function usage() { echo "function ec2_allocate_address" echo "Allocates an Elastic IP address for use with Amazon Elastic Compute Cloud (Amazon EC2) instances in a specific AWS Region." echo " -d domain - The domain for the Elastic IP address (either 'vpc' or 'standard')." echo "" } # Parse the command-line arguments while getopts "d:h" option; do case "${option}" in d) domain="${OPTARG}" ;; h) usage return 0 ;; \?) echo "Invalid parameter" usage return 1 ;; esac done export OPTIND=1 # Validate the input parameters if [[ -z "$domain" ]]; then errecho "ERROR: You must provide a domain with the -d parameter (either 'vpc' or 'standard')." return 1 fi if [[ "$domain" != "vpc" && "$domain" != "standard" ]]; then errecho "ERROR: Invalid domain value. Must be either 'vpc' or 'standard'." return 1 fi # Allocate the Elastic IP address response=$(aws ec2 allocate-address \ --domain "$domain" \ --query "[PublicIp,AllocationId]" \ --output text) || { aws_cli_error_log ${?} errecho "ERROR: AWS reports allocate-address operation failed." errecho "$response" return 1 } echo "$response" return 0 }
本示例中使用的实用程序函数。
############################################################################### # function errecho # # This function outputs everything sent to it to STDERR (standard error output). ############################################################################### function errecho() { printf "%s\n" "$*" 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 }
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有关API详细信息,请参阅AWS CLI 命令参考AllocateAddress中的。
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- C++
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- SDK对于 C++
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 //! Allocate an Elastic IP address and associate it with an Amazon Elastic Compute Cloud //! (Amazon EC2) instance. /*! \param instanceID: An EC2 instance ID. \param[out] publicIPAddress: String to return the public IP address. \param[out] allocationID: String to return the allocation ID. \param clientConfiguration: AWS client configuration. \return bool: Function succeeded. */ bool AwsDoc::EC2::allocateAndAssociateAddress(const Aws::String &instanceId, Aws::String &publicIPAddress, Aws::String &allocationID, const Aws::Client::ClientConfiguration &clientConfiguration) { Aws::EC2::EC2Client ec2Client(clientConfiguration); Aws::EC2::Model::AllocateAddressRequest request; request.SetDomain(Aws::EC2::Model::DomainType::vpc); const Aws::EC2::Model::AllocateAddressOutcome outcome = ec2Client.AllocateAddress(request); if (!outcome.IsSuccess()) { std::cerr << "Failed to allocate Elastic IP address:" << outcome.GetError().GetMessage() << std::endl; return false; } const Aws::EC2::Model::AllocateAddressResponse &response = outcome.GetResult(); allocationID = response.GetAllocationId(); publicIPAddress = response.GetPublicIp(); return true; }
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有关API详细信息,请参阅 “AWS SDK for C++ API参考 AllocateAddress” 中的。
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- CLI
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- AWS CLI
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示例 1:从 Amazon 的地址池中分配弹性 IP 地址
以下
allocate-address
示例分配弹性 IP 地址。亚马逊从亚马逊的地址池EC2中选择地址。aws ec2 allocate-address
输出:
{ "PublicIp": "70.224.234.241", "AllocationId": "eipalloc-01435ba59eEXAMPLE", "PublicIpv4Pool": "amazon", "NetworkBorderGroup": "us-west-2", "Domain": "vpc" }
有关更多信息,请参阅 Amazon EC2 用户指南中的弹性 IP 地址。
示例 2:分配弹性 IP 地址并将其与网络边界组关联
以下
allocate-address
示例分配弹性 IP 地址并将其与指定的网络边界组关联。aws ec2 allocate-address \ --network-border-group
us-west-2-lax-1
输出:
{ "PublicIp": "70.224.234.241", "AllocationId": "eipalloc-e03dd489ceEXAMPLE", "PublicIpv4Pool": "amazon", "NetworkBorderGroup": "us-west-2-lax-1", "Domain": "vpc" }
有关更多信息,请参阅 Amazon EC2 用户指南中的弹性 IP 地址。
示例 3:从自己拥有的地址池中分配弹性 IP 地址
以下
allocate-address
示例从您引入 Amazon Web Services 账户的地址池中,分配弹性 IP 地址。Amazon 从地址池EC2中选择地址。aws ec2 allocate-address \ --public-ipv4-pool
ipv4pool-ec2-1234567890abcdef0
输出:
{ "AllocationId": "eipalloc-02463d08ceEXAMPLE", "NetworkBorderGroup": "us-west-2", "CustomerOwnedIp": "18.218.95.81", "CustomerOwnedIpv4Pool": "ipv4pool-ec2-1234567890abcdef0", "Domain": "vpc" "NetworkBorderGroup": "us-west-2", }
有关更多信息,请参阅 Amazon EC2 用户指南中的弹性 IP 地址。
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有关API详细信息,请参阅AWS CLI 命令参考AllocateAddress
中的。
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- Java
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- SDK适用于 Java 2.x
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 /** * Allocates an Elastic IP address asynchronously in the VPC domain. * * @return a {@link CompletableFuture} containing the allocation ID of the allocated Elastic IP address */ public CompletableFuture<String> allocateAddressAsync() { AllocateAddressRequest allocateRequest = AllocateAddressRequest.builder() .domain(DomainType.VPC) .build(); CompletableFuture<AllocateAddressResponse> responseFuture = getAsyncClient().allocateAddress(allocateRequest); return responseFuture.thenApply(AllocateAddressResponse::allocationId).whenComplete((result, ex) -> { if (ex != null) { throw new RuntimeException("Failed to allocate address", ex); } }); }
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有关API详细信息,请参阅 “AWS SDK for Java 2.x API参考 AllocateAddress” 中的。
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- JavaScript
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- SDK对于 JavaScript (v3)
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 import { AllocateAddressCommand, EC2Client } from "@aws-sdk/client-ec2"; /** * Allocates an Elastic IP address to your AWS account. */ export const main = async () => { const client = new EC2Client({}); const command = new AllocateAddressCommand({}); try { const { AllocationId, PublicIp } = await client.send(command); console.log("A new IP address has been allocated to your account:"); console.log(`ID: ${AllocationId} Public IP: ${PublicIp}`); console.log( "You can view your IP addresses in the AWS Management Console for Amazon EC2. Look under Network & Security > Elastic IPs", ); } catch (caught) { if (caught instanceof Error && caught.name === "MissingParameter") { console.warn(`${caught.message}. Did you provide these values?`); } else { throw caught; } } }; import { fileURLToPath } from "url"; // Call function if run directly. if (process.argv[1] === fileURLToPath(import.meta.url)) { main(); }
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有关API详细信息,请参阅 “AWS SDK for JavaScript API参考 AllocateAddress” 中的。
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- Kotlin
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- SDK对于 Kotlin 来说
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 suspend fun getAllocateAddress(instanceIdVal: String?): String? { val allocateRequest = AllocateAddressRequest { domain = DomainType.Vpc } Ec2Client { region = "us-west-2" }.use { ec2 -> val allocateResponse = ec2.allocateAddress(allocateRequest) val allocationIdVal = allocateResponse.allocationId val request = AssociateAddressRequest { instanceId = instanceIdVal allocationId = allocationIdVal } val associateResponse = ec2.associateAddress(request) return associateResponse.associationId } }
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有关API详细信息,请参阅AllocateAddress
中的 Kotlin AWS SDK API 参考。
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- PowerShell
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- 用于 PowerShell
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示例 1:此示例分配弹性 IP 地址以用于中的实例。VPC
New-EC2Address -Domain Vpc
输出:
AllocationId Domain PublicIp ------------ ------ -------- eipalloc-12345678 vpc 198.51.100.2
示例 2:此示例分配弹性 IP 地址以用于 EC2-Classic 中的实例。
New-EC2Address
输出:
AllocationId Domain PublicIp ------------ ------ -------- standard 203.0.113.17
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有关API详细信息,请参阅 AWS Tools for PowerShell Cmdlet 参考AllocateAddress中的。
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- Python
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- SDK适用于 Python (Boto3)
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 class ElasticIpWrapper: """Encapsulates Amazon Elastic Compute Cloud (Amazon EC2) Elastic IP address actions.""" def __init__(self, ec2_resource, elastic_ip=None): """ :param ec2_resource: A Boto3 Amazon EC2 resource. This high-level resource is used to create additional high-level objects that wrap low-level Amazon EC2 service actions. :param elastic_ip: A Boto3 VpcAddress object. This is a high-level object that wraps Elastic IP actions. """ self.ec2_resource = ec2_resource self.elastic_ip = elastic_ip @classmethod def from_resource(cls): ec2_resource = boto3.resource("ec2") return cls(ec2_resource) def allocate(self): """ Allocates an Elastic IP address that can be associated with an Amazon EC2 instance. By using an Elastic IP address, you can keep the public IP address constant even when you restart the associated instance. :return: The newly created Elastic IP object. By default, the address is not associated with any instance. """ try: response = self.ec2_resource.meta.client.allocate_address(Domain="vpc") self.elastic_ip = self.ec2_resource.VpcAddress(response["AllocationId"]) except ClientError as err: logger.error( "Couldn't allocate Elastic IP. Here's why: %s: %s", err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return self.elastic_ip
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有关API详细信息,请参阅AllocateAddress中的 AWS SDKPython (Boto3) API 参考。
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- Ruby
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- SDK对于 Ruby
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 # Creates an Elastic IP address in Amazon Virtual Private Cloud (Amazon VPC). # # @param ec2_client [Aws::EC2::Client] An initialized EC2 client. # @return [String] The allocation ID corresponding to the Elastic IP address. # @example # puts allocate_elastic_ip_address(Aws::EC2::Client.new(region: 'us-west-2')) def allocate_elastic_ip_address(ec2_client) response = ec2_client.allocate_address(domain: "vpc") return response.allocation_id rescue StandardError => e puts "Error allocating Elastic IP address: #{e.message}" return "Error" end
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有关API详细信息,请参阅 “AWS SDK for Ruby API参考 AllocateAddress” 中的。
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- Rust
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- SDK对于 Rust
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 pub async fn allocate_ip_address(&self) -> Result<AllocateAddressOutput, EC2Error> { self.client .allocate_address() .domain(DomainType::Vpc) .send() .await .map_err(EC2Error::from) }
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有关API详细信息,请参见AllocateAddress
中的 Rust AWS SDK API 参考。
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- SAP ABAP
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- SDK对于 SAP ABAP
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注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 TRY. oo_result = lo_ec2->allocateaddress( iv_domain = 'vpc' ). " oo_result is returned for testing purposes. " MESSAGE 'Allocated an Elastic IP address.' 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.
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有关API详细信息,请参阅AllocateAddress中的AWS SDK以供SAPABAPAPI参考。
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