This topic describes how to use Alibaba Cloud SDK for Python to associate an elastic IP address (EIP) with an EIP bandwidth plan.

Prerequisites

Before you use Alibaba Cloud SDK for Python, make sure that the following requirements are met:
  • An Alibaba Cloud account and the AccessKey pair are obtained. You can create and view your AccessKey pair on the Security Management page of the Alibaba Cloud Management Console.
  • Make sure that Alibaba Cloud SDK for Python is installed. For more information, see aliyun-python-sdk-vpc 3.0.12.
  • The VPC Python example library is downloaded.
    Go to the directory where the setup.py file is stored, and run the following command to initialize the environment: 
    python setup.py install

Background information

The sample code includes the following operations:
  1. Create an EIP in the China (Hangzhou) region.
  2. Create an EIP bandwidth plan in the China (Hangzhou) region.
  3. Associate the EIP with the EIP bandwidth plan.
  4. Query the EIP bandwidth plan.
  5. Disassociate the EIP from the EIP bandwidth plan.
  6. Delete the EIP bandwidth plan.
  7. Release the EIP.

Procedure

  1. In the directory of the downloaded SDK files, open the aliyun-openapi-python-sdk-examples\sdk_examples\examples\eip folder.
  2. Open the eip_add_cbwp.py file in your text editor. Set the required parameters, save the configurations, and then exit the editor.
    The following sample code is displayed: 
    #encoding=utf-8
import sys
from aliyunsdkvpc.request.v20160428 import CreateCommonBandwidthPackageRequest
from aliyunsdkvpc.request.v20160428 import AddCommonBandwidthPackageIpRequest
from aliyunsdkvpc.request.v20160428 import DescribeCommonBandwidthPackagesRequest
from aliyunsdkvpc.request.v20160428 import RemoveCommonBandwidthPackageIpRequest
from aliyunsdkvpc.request.v20160428 import DeleteCommonBandwidthPackageRequest
from sdk_lib.common_util import CommonUtil
from sdk_lib.sdk_eip import *

"""
1. Create an EIP. 2. Create an EIP bandwidth plan. 3. Query the ID of the EIP bandwidth plan. 4. Associate the EIP with the EIP bandwidth plan. 5. Query the EIP bandwidth plan. 6. Disassociate the EIP from the EIP bandwidth plan. 7. Delete the EIP bandwidth plan. 8. Release the EIP.
"""
class CommonBandwidthPackage(object):
    def __init__(self, client):
        self.client = client

    def create_common_bandwidth_package(self, params):
        """
        create_common_bandwidth_package: Create an EIP bandwidth plan.

        """
        try:
            request = CreateCommonBandwidthPackageRequest.CreateCommonBandwidthPackageRequest()
            # The maximum bandwidth value of the EIP bandwidth plan. Unit: Mbit/s.
            request.set_Bandwidth(params['bandwidth'])
            response = self.client.do_action_with_exception(request)
            response_json = json.loads(response)
            if CheckStatus.check_status(TIME_DEFAULT_OUT, DEFAULT_TIME,
                                        self.describe_cbwp_status,
                                        AVAILABLE, response_json["BandwidthPackageId"]):
                return response_json
        except ServerException as e:
            ExceptionHandler.server_exception(e)
        except ClientException as e:
            ExceptionHandler.client_exception(e)

    def add_common_bandwidth_packageIp(self, params):
        """
        add_common_bandwidth_packageIp: Associate the EIP with the EIP bandwidth plan.

        """
        try:
            request = AddCommonBandwidthPackageIpRequest.AddCommonBandwidthPackageIpRequest()
            # The ID of the EIP.
            request.set_IpInstanceId(params['ip_instance_id'])
            # The ID of the EIP bandwidth plan.
            request.set_BandwidthPackageId(params['bandwidth_package_id'])
            response = self.client.do_action_with_exception(request)
            response_json = json.loads(response)
            return response_json
        except ServerException as e:
            ExceptionHandler.server_exception(e)
        except ClientException as e:
            ExceptionHandler.client_exception(e)

    def describe_cbwp(self, cbwp_id):
        """
        describe_cbwp: Query information about the EIP bandwidth plan.

        """
        try:
            request = DescribeCommonBandwidthPackagesRequest.DescribeCommonBandwidthPackagesRequest()
            # The ID of an EIP bandwidth plan.
            request.set_BandwidthPackageId(cbwp_id)
            response = self.client.do_action_with_exception(request)
            response_json = json.loads(response)
            return response_json
        except ServerException as e:
            ExceptionHandler.server_exception(e)
        except ClientException as e:
            ExceptionHandler.client_exception(e)

    def describe_cbwp_status(self, cbwp_id):
        """
        describe_cbwp_status: Query the state of the EIP bandwidth plan.

        """
        # The ID of the EIP bandwidth plan.
        response = self.describe_cbwp(cbwp_id)
        return response["CommonBandwidthPackages"]["CommonBandwidthPackage"][0]["Status"]


    def remove_common_bandwidth_packageIp(self, params):
        """
        remove_common_bandwidth_packageIp: Disassociate the EIP from the EIP bandwidth plan.

        """
        try:
            request = RemoveCommonBandwidthPackageIpRequest.RemoveCommonBandwidthPackageIpRequest()
            # The ID of the EIP.
            request.set_IpInstanceId(params['ip_instance_id'])
            # The ID of the EIP bandwidth plan.
            request.set_BandwidthPackageId(params['bandwidth_package_id'])
            response = self.client.do_action_with_exception(request)
            response_json = json.loads(response)
            return response_json
        except ServerException as e:
            ExceptionHandler.server_exception(e)
        except ClientException as e:
            ExceptionHandler.client_exception(e)


    def delete_common_bandwidth_package(self, params):
        """
        delete_common_bandwidth_package: Delete the EIP bandwidth plan.

        """
        try:
            request = DeleteCommonBandwidthPackageRequest.DeleteCommonBandwidthPackageRequest()
            # The ID of the EIP bandwidth plan.
            request.set_BandwidthPackageId(params['bandwidth_package_id'])
            # Specify whether to forcibly delete the EIP bandwidth plan.
            request.set_Force(params['force'])
            response = self.client.do_action_with_exception(request)
            response_json = json.loads(response)
            return response_json
        except ServerException as e:
            ExceptionHandler.server_exception(e)
        except ClientException as e:
            ExceptionHandler.client_exception(e)

def main():

    client = AcsClient(
            '<your-access-key-id>',     # Your AccessKey ID.
            '<your-access-key-secret>', # Your AccessKey secret.
            '<your-region-id>')         # Your region ID.

    params = {}

    # Create an EIP.
    eip_response_json = eip.allocate_eip_address(params)
    CommonUtil.log("allocate_eip_address", eip_response_json)
    params['allocation_id'] = eip_response_json["AllocationId"]

    # Create an EIP bandwidth plan.
    params['allocation_id'] = eip_response_json["AllocationId"]
    params['ip_instance_id'] = eip_response_json["AllocationId"]
    params['bandwidth'] = BANDWIDTH_10
    cbwp_repsonse_json = cbwp.create_common_bandwidth_package(params)
    CommonUtil.log("create_common_bandwidth_package", cbwp_repsonse_json)

    # Associate the EIP with the EIP bandwidth plan.
    params['bandwidth_package_id'] = cbwp_repsonse_json['BandwidthPackageId']
    cbwp_repsonse_json = cbwp.add_common_bandwidth_packageIp(params)
    CommonUtil.log("add_common_bandwidth_packageIp", cbwp_repsonse_json)

    # Query the EIP bandwidth plan.
    cbwp_repsonse_json = cbwp.describe_cbwp(params['bandwidth_package_id'])
    CommonUtil.log("add_common_bandwidth_packageIp", cbwp_repsonse_json)

    # Disassociate the EIP from the EIP bandwidth plan.
    cbwp_repsonse_json = cbwp.remove_common_bandwidth_packageIp(params)
    CommonUtil.log("remove_common_bandwidth_packageIp", cbwp_repsonse_json)

    # Delete the EIP bandwidth plan.
    params['force'] = True
    cbwp_repsonse_json = cbwp.delete_common_bandwidth_package(params)
    CommonUtil.log("delete_common_bandwidth_package", cbwp_repsonse_json)

    # Release the EIP.
    eip_response_json = eip.release_eip_address(params)
    CommonUtil.log("release_eip_address", eip_response_json)

if __name__ == '__main__':
    sys.exit(main())
  3. Go to the directory where the eip_add_cbwp.py file is stored, and run the following command to associate the EIP with the EIP bandwidth plan:
    python eip_add_cbwp.py

Result

The following output is returned: 
---------------------------allocate_eip_address---------------------------
{
  "EipAddress": "118.XX.XX.198",
  "ResourceGroupId": "rg-acfm4od****",
  "RequestId": "A830A607-B7C4-49FE-A6EE-7237D64CDE2D",
  "AllocationId": "eip-bp1mdyvr22qvg****"
}
---------------------------create_common_bandwidth_package----------------------
-----
{
  "ResourceGroupId": "rg-acfm4od****",
  "BandwidthPackageId": "cbwp-bp12k058pjjie****",
  "RequestId": "93127320-DD79-4F83-A3B9-DC99D0597B0C"
}
---------------------------add_common_bandwidth_packageIp-----------------------
----
{
  "RequestId": "7F314AFE-B398-4348-AF61-B7D27B731286"
}
---------------------------add_common_bandwidth_packageIp-----------------------
----
{
  "TotalCount": 1,
  "CommonBandwidthPackages": {
    "CommonBandwidthPackage": [
      {
        "Status": "Available",
        "PublicIpAddresses": {
          "PublicIpAddresse": [
            {
              "IpAddress": "118.XX.XX.198",
              "AllocationId": "eip-bp1mdyvr22qvg****"
            }
          ]
        },
        "BusinessStatus": "Normal",
        "RegionId": "cn-hangzhou",
        "BandwidthPackageId": "cbwp-bp12k058pjjie****",
        "Name": "",
        "ISP": "BGP",
        "CreationTime": "2019-04-18T01:46:17Z",
        "ResourceGroupId": "rg-acfm4od****",
        "Bandwidth": "10",
        "InstanceChargeType": "PostPaid",
        "HasReservationData": false,
        "InternetChargeType": "PayByBandwidth",
        "ExpiredTime": "",
        "Ratio": 100,
        "Description": ""
      }
    ]
  },
  "PageNumber": 1,
  "RequestId": "015DD0FA-742B-4431-92EA-E3F03FDEB8CD",
  "PageSize": 10
}
---------------------------remove_common_bandwidth_packageIp--------------------
-------
{
  "RequestId": "A49C9126-B703-4D34-B552-A7FE283FB5DD"
}
---------------------------delete_common_bandwidth_package----------------------
-----
{
  "RequestId": "E423F648-C169-4B63-A2CF-5E6C8E441DE1"
}
---------------------------release_eip_address---------------------------
{
  "RequestId": "7E0D34AE-58C3-468A-B021-378F8938AE6B"
}