Utilizzare AllocateAddress con un o AWS SDK CLI

    /// <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;
    }

###############################################################################
# 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
}

Le funzioni di utilità utilizzate in questo esempio.

###############################################################################
# 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
}

//! 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;
}

Esempio 1: per allocare un indirizzo IP elastico dal pool di indirizzi Amazon

Nell'esempio di allocate-address seguente viene allocato un indirizzo IP elastico. Amazon EC2 seleziona l'indirizzo dal pool di indirizzi di Amazon.

aws ec2 allocate-address

Output:

{
    "PublicIp": "70.224.234.241",
    "AllocationId": "eipalloc-01435ba59eEXAMPLE",
    "PublicIpv4Pool": "amazon",
    "NetworkBorderGroup": "us-west-2",
    "Domain": "vpc"
}

Per ulteriori informazioni, consulta gli indirizzi IP elastici nella Amazon EC2 User Guide.

Esempio 2: per allocare un indirizzo IP elastico e associarlo a un gruppo di confine di rete

Nell'esempio di allocate-address seguente viene allocato un indirizzo IP elastico e viene associato al gruppo di confine di rete specificato.

aws ec2 allocate-address \
    --network-border-group us-west-2-lax-1

Output:

{
    "PublicIp": "70.224.234.241",
    "AllocationId": "eipalloc-e03dd489ceEXAMPLE",
    "PublicIpv4Pool": "amazon",
    "NetworkBorderGroup": "us-west-2-lax-1",
    "Domain": "vpc"
}

Per ulteriori informazioni, consulta gli indirizzi IP elastici nella Amazon EC2 User Guide.

Esempio 3: per allocare un indirizzo IP elastico da un pool di indirizzi proprietario

Nell'esempio di allocate-address seguente viene allocato un indirizzo IP elastico da un pool di indirizzi trasferito sull'account Amazon Web Services. Amazon EC2 seleziona l'indirizzo dal pool di indirizzi.

aws ec2 allocate-address \
    --public-ipv4-pool ipv4pool-ec2-1234567890abcdef0

Output:

{
    "AllocationId": "eipalloc-02463d08ceEXAMPLE",
    "NetworkBorderGroup": "us-west-2",
    "CustomerOwnedIp": "18.218.95.81",
    "CustomerOwnedIpv4Pool": "ipv4pool-ec2-1234567890abcdef0",
    "Domain": "vpc"
    "NetworkBorderGroup": "us-west-2",
}

Per ulteriori informazioni, consulta gli indirizzi IP elastici nella Amazon EC2 User Guide.

    /**
     * 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);
            }
        });
    }

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();
}

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
    }
}

Esempio 1: questo esempio alloca un indirizzo IP elastico da utilizzare con un'istanza in a. VPC

New-EC2Address -Domain Vpc

Output:

AllocationId         Domain      PublicIp
------------         ------      --------
eipalloc-12345678    vpc         198.51.100.2

Esempio 2: questo esempio alloca un indirizzo IP elastico da utilizzare con un'istanza in EC2 -Classic.

New-EC2Address

Output:

AllocationId         Domain      PublicIp
------------         ------      --------
                     standard    203.0.113.17

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

# 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

    pub async fn allocate_ip_address(&self) -> Result<AllocateAddressOutput, EC2Error> {
        self.client
            .allocate_address()
            .domain(DomainType::Vpc)
            .send()
            .await
            .map_err(EC2Error::from)
    }

    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.