本文介绍如何使用Alibaba Cloud SDK for Python将一个弹性公网IP添加到共享带宽。

前提条件

在使用Alibaba Cloud SDK for Python前，您需要完成以下准备工作：
  • 使用Alibaba Cloud SDK for Python，您需要一个阿里云账号和访问密钥（AccessKey）。 请在阿里云控制台中的AccessKey管理页面上创建和查看您的AccessKey。
  • 确保您已经安装了Alibaba Cloud SDK for Python，请参见aliyun-python-sdk-vpc 3.0.8。
  • 下载阿里云专有网络Python SDK场景示例的VPC Python Example库。
    进入setup.py所在的目录，执行如下命令，完成环境初始化配置。 
    python setup.py install

背景信息

本文代码示例中包含以下操作：
  1. 在华东1杭州地域创建一个EIP。
  2. 在华东1杭州地域创建共享带宽。
  3. 将新创建的EIP加入共享带宽。
  4. 查询共享带宽。
  5. 将EIP移出共享带宽。
  6. 删除共享带宽。
  7. 释放EIP。

操作步骤

  1. 在下载的SDK目录中，打开$aliyun-openapi-python-sdk-examples\sdk_examples\examples\eip文件夹。
  2. 使用编辑器打开eip_add_cbwp.py文件，根据实际情况配置相关参数，保存退出。
    完整代码示例如下： 
    #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 *

"""
创建EIP->创建带宽包->通用带宽包id->添加EIP到共享带宽包中->查询共享带宽包->移除共享带宽包中的EIP->删除共享带宽包->释放EIP
"""
class CommonBandwidthPackage(object):
    def __init__(self, client):
        self.client = client

    def create_common_bandwidth_package(self, params):
        """
        create_common_bandwidth_package: 创建共享带宽

        """
        try:
            request = CreateCommonBandwidthPackageRequest.CreateCommonBandwidthPackageRequest()
            # 共享带宽的带宽峰值，单位为Mbps
            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: 添加EIP到共享带宽中

        """
        try:
            request = AddCommonBandwidthPackageIpRequest.AddCommonBandwidthPackageIpRequest()
            # EIP实例的ID
            request.set_IpInstanceId(params['ip_instance_id'])
            # 共享带宽的ID
            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: 查询共享带宽实例信息

        """
        try:
            request = DescribeCommonBandwidthPackagesRequest.DescribeCommonBandwidthPackagesRequest()
            # 共享带宽实例的ID
            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: 查询共享带宽实例状态

        """
        # 共享带宽实例的ID
        response = self.describe_cbwp(cbwp_id)
        return response["CommonBandwidthPackages"]["CommonBandwidthPackage"][0]["Status"]


    def remove_common_bandwidth_packageIp(self, params):
        """
        remove_common_bandwidth_packageIp: 移除共享带宽中的EIP

        """
        try:
            request = RemoveCommonBandwidthPackageIpRequest.RemoveCommonBandwidthPackageIpRequest()
            # EIP实例的ID
            request.set_IpInstanceId(params['ip_instance_id'])
            # 共享带宽实例的ID
            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: 删除共享带宽包

        """
        try:
            request = DeleteCommonBandwidthPackageRequest.DeleteCommonBandwidthPackageRequest()
            # 共享带宽实例的ID
            request.set_BandwidthPackageId(params['bandwidth_package_id'])
            # 是否强制删除共享带宽实例
            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>',     # 您的可用区ID
            '<your-access-key-secret>', # 您的AccessKey ID
            '<your-region-id>')         # 您的AccessKey Secret

    params = {}

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

    # 创建带宽包
    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)

    # 添加EIP到共享带宽包中
    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)

    # 查询共享带宽包
    cbwp_repsonse_json = cbwp.describe_cbwp(params['bandwidth_package_id'])
    CommonUtil.log("add_common_bandwidth_packageIp", cbwp_repsonse_json)

    # 移除共享带宽包中的EIP（
    cbwp_repsonse_json = cbwp.remove_common_bandwidth_packageIp(params)
    CommonUtil.log("remove_common_bandwidth_packageIp", cbwp_repsonse_json)

    # 删除共享带宽包
    params['force'] = True
    cbwp_repsonse_json = cbwp.delete_common_bandwidth_package(params)
    CommonUtil.log("delete_common_bandwidth_package", cbwp_repsonse_json)

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

if __name__ == '__main__':
    sys.exit(main())
  3. 进入eip_add_cbwp.py所在的目录，执行如下命令，实现EIP加入共享带宽。 
    python eip_add_cbwp.py

执行结果

系统显示类似如下： 
---------------------------allocate_eip_address---------------------------
{
  "EipAddress": "118.xx.xx.198",
  "ResourceGroupId": "rg-acfm4odxxxxxxxx",
  "RequestId": "A830A607-B7C4-49FE-A6EE-7237D64CDE2D",
  "AllocationId": "eip-bp1mdyvr22qvgxxxxxxxx"
}
---------------------------create_common_bandwidth_package----------------------
-----
{
  "ResourceGroupId": "rg-acfm4odxxxxxxxx",
  "BandwidthPackageId": "cbwp-bp12k058pjjiexxxxxxxx",
  "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-bp1mdyvr22qvgxxxxxxxx"
            }
          ]
        },
        "BusinessStatus": "Normal",
        "RegionId": "cn-hangzhou",
        "BandwidthPackageId": "cbwp-bp12k058pjjiexxxxxxxx",
        "Name": "",
        "ISP": "BGP",
        "CreationTime": "2019-04-18T01:46:17Z",
        "ResourceGroupId": "rg-acfm4odxxxxxxxx",
        "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"
}