Gunakan DisassociateAddress dengan AWS SDK atau CLI - Amazon Elastic Compute Cloud

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Gunakan DisassociateAddress dengan AWS SDK atau CLI

Contoh kode berikut menunjukkan cara menggunakanDisassociateAddress.

Contoh tindakan adalah kutipan kode dari program yang lebih besar dan harus dijalankan dalam konteks. Anda dapat melihat tindakan ini dalam konteks dalam contoh kode berikut:

.NET
AWS SDK for .NET
catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode. 

    /// <summary>
    /// Disassociate an Elastic IP address from an EC2 instance.
    /// </summary>
    /// <param name="associationId">The association Id.</param>
    /// <returns>A Boolean value indicating the success of the action.</returns>
    public async Task<bool> DisassociateIp(string associationId)
    {
        var response = await _amazonEC2.DisassociateAddressAsync(
            new DisassociateAddressRequest { AssociationId = associationId });
        return response.HttpStatusCode == HttpStatusCode.OK;
    }
Bash
AWS CLI dengan skrip Bash
catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode. 

###############################################################################
# function ec2_disassociate_address
#
# This function disassociates an Elastic IP address from an Amazon Elastic Compute Cloud (Amazon EC2) instance.
#
# Parameters:
#       -a association_id - The association ID that represents the association of the Elastic IP address with an instance.
#
# And:
#       0 - If successful.
#       1 - If it fails.
#
###############################################################################
function ec2_disassociate_address() {
  local association_id response

  # Function to display usage information
  function usage() {
    echo "function ec2_disassociate_address"
    echo "Disassociates an Elastic IP address from an Amazon Elastic Compute Cloud (Amazon EC2) instance."
    echo "  -a association_id - The association ID that represents the association of the Elastic IP address with an instance."
    echo ""
  }

  # Parse the command-line arguments
  while getopts "a:h" option; do
    case "${option}" in
      a) association_id="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  # Validate the input parameters
  if [[ -z "$association_id" ]]; then
    errecho "ERROR: You must provide an association ID with the -a parameter."
    return 1
  fi

  response=$(aws ec2 disassociate-address \
    --association-id "$association_id") || {
    aws_cli_error_log ${?}
    errecho "ERROR: AWS reports disassociate-address operation failed."
    errecho "$response"
    return 1
  }

  return 0
}

Fungsi utilitas yang digunakan dalam contoh ini.

###############################################################################
# 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
}
CLI
AWS CLI

Untuk melepaskan kaitan alamat IP Elastis di EC2-Classic

Contoh ini melepaskan kaitan alamat IP Elastis dari instans di EC2-Classic. Jika perintah berhasil, tidak ada output yang akan ditampilkan.

Perintah:

aws ec2 disassociate-address --public-ip 198.51.100.0

Untuk melepaskan kaitan alamat IP Elastis di EC2-VPC

Contoh ini melepaskan kaitan alamat IP Elastis dari instans di VPC. Jika perintah berhasil, tidak ada output yang akan ditampilkan.

Perintah:

aws ec2 disassociate-address --association-id eipassoc-2bebb745
Java
SDK untuk Java 2.x
catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode. 

    public static void disassociateAddress(Ec2Client ec2, String associationId) {
        try {
            DisassociateAddressRequest addressRequest = DisassociateAddressRequest.builder()
                    .associationId(associationId)
                    .build();

            ec2.disassociateAddress(addressRequest);
            System.out.println("You successfully disassociated the address!");

        } catch (Ec2Exception e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
JavaScript
SDK untuk JavaScript (v3)
catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode. 

import { DisassociateAddressCommand } from "@aws-sdk/client-ec2";

import { client } from "../libs/client.js";

// Disassociate an Elastic IP address from an instance.
export const main = async () => {
  const command = new DisassociateAddressCommand({
    // You can also use PublicIp, but that is for EC2 classic which is being retired.
    AssociationId: "ASSOCIATION_ID",
  });

  try {
    await client.send(command);
    console.log("Successfully disassociated address");
  } catch (err) {
    console.error(err);
  }
};
Kotlin
SDK untuk Kotlin
catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode. 

suspend fun disassociateAddressSc(associationIdVal: String?) {
    val addressRequest =
        DisassociateAddressRequest {
            associationId = associationIdVal
        }
    Ec2Client { region = "us-west-2" }.use { ec2 ->
        ec2.disassociateAddress(addressRequest)
        println("You successfully disassociated the address!")
    }
}
PowerShell
Alat untuk PowerShell

Contoh 1: Contoh ini memisahkan alamat IP Elastis yang ditentukan dari instance yang ditentukan dalam VPC.

Unregister-EC2Address -AssociationId eipassoc-12345678

Contoh 2: Contoh ini memisahkan alamat IP Elastis yang ditentukan dari instance yang ditentukan di EC2-Classic.

Unregister-EC2Address -PublicIp 203.0.113.17
Python
SDK untuk Python (Boto3)
catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode. 

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 disassociate(self):
        """
        Removes an association between an Elastic IP address and an instance. When the
        association is removed, the instance is assigned a new public IP address.
        """
        if self.elastic_ip is None:
            logger.info("No Elastic IP to disassociate.")
            return

        try:
            self.elastic_ip.association.delete()
        except ClientError as err:
            logger.error(
                "Couldn't disassociate Elastic IP %s from its instance. Here's why: %s: %s",
                self.elastic_ip.allocation_id,
                err.response["Error"]["Code"],
                err.response["Error"]["Message"],
            )
            raise

Untuk daftar lengkap panduan pengembang AWS SDK dan contoh kode, lihatMembuat sumber daya Amazon EC2 menggunakan SDK AWS. Topik ini juga mencakup informasi tentang memulai dan detail tentang versi SDK sebelumnya.