本文介绍如何使用Python SDK创建自定义路由表。

背景信息

本次示例分为以下几步,创建自定义路由表:
  1. 在华北3张家口地域创建一个VPC。
  2. 在新建的VPC下创建一个VSwitch。
  3. 创建一个名为sdk_route_table的自定义路由表。
  4. 查询新创建的VSwitch。
  5. 将新创建的路由表与和同一VPC内的VSwitch进行绑定。
  6. 将新创建的路由表与和同一VPC内的VSwitch进行解绑。
  7. 删除新创建的自定义路由表。
  8. 删除新创建的VSwitch。
  9. 删除新创建的VPC。

操作步骤

  1. 在下载的SDK目录中,打开$aliyun-openapi-python-sdk-examples\sdk_examples\sdk_lib文件夹。
  2. 使用编辑器打开consts.py文件,配置用户鉴权参数ACS_CLIENT
  3. 在下载的SDK目录中,打开$aliyun-openapi-python-sdk-examples\sdk_examples\examples\vpc文件夹。
  4. 使用编辑器打开vpc_route_table.py文件,根据实际情况配置相关参数,保存退出。
    #encoding=utf-8
    import sys
    import json
    import time
    
    from aliyunsdkcore.acs_exception.exceptions import ServerException, ClientException
    from aliyunsdkvpc.request.v20160428 import CreateRouteEntryRequest
    from aliyunsdkvpc.request.v20160428 import DeleteRouteEntryRequest
    from aliyunsdkvpc.request.v20160428 import AssociateEipAddressRequest
    from aliyunsdkvpc.request.v20160428 import UnassociateEipAddressRequest
    from aliyunsdkvpc.request.v20160428 import DescribeRouteTablesRequest
    from sdk_lib.common_util import CommonUtil
    from sdk_lib.sdk_vpc import Vpc
    from sdk_lib.sdk_vswitch import VSwitch
    from sdk_lib.exception import ExceptionHandler
    from sdk_lib.check_status import CheckStatus
    from sdk_lib.consts import *
    
    class RouteTable(object):
        def __init__(self, client):
            self.client = client
    
    
        def create_route_table(self, params):
            """
            create_route_table: 创建一个自定义路由表
            官网API参考链接: https://help.aliyun.com/document_detail/87586.html
            """
            try:
                request = CreateRouteEntryRequest.CreateRouteEntryRequest()
                request.set_action_name("CreateRouteTable")
                # 自定义路由表所属的VPC ID
                request.add_query_param("VpcId", params['vpc_id'])
                # 路由表的名称
                request.add_query_param("RouteTableName", params['route_table_name'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                route_table_id = response_json['RouteTableId']
                # 判断route table状态是否可用
                if CheckStatus.check_status(TIME_DEFAULT_OUT, DEFAULT_TIME * 5,
                                            self.describe_route_table_status,
                                            route_table_id, route_table_id):
                    return response_json
            except ServerException as e:
                ExceptionHandler.server_exception(e)
            except ClientException as e:
                ExceptionHandler.client_exception(e)
    
        def associate_route_table(self, params):
            """
            associate_route_table: 将创建的自定义路由表和同一VPC内的交换机绑定
            官网API参考链接: https://help.aliyun.com/document_detail/87599.html
            """
            try:
                request = AssociateEipAddressRequest.AssociateEipAddressRequest()
                request.set_action_name("AssociateRouteTable")
                # 路由表ID
                request.add_query_param("RouteTableId", params['route_table_id'])
                # 要绑定的交换机ID
                request.add_query_param("VSwitchId", params['vswitch_id'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                time.sleep(DEFAULT_TIME * 5)
                return response_json
            except ServerException as e:
                ExceptionHandler.server_exception(e)
            except ClientException as e:
                ExceptionHandler.client_exception(e)
    
        def unassociate_route_table(self, params):
            """
            unassociate_route_table: 将路由表和交换机解绑
            官网API参考链接: https://help.aliyun.com/document_detail/87628.html
            """
            try:
                request = UnassociateEipAddressRequest.UnassociateEipAddressRequest()
                request.set_action_name("UnassociateRouteTable")
                # 路由表ID
                request.add_query_param("RouteTableId", params['route_table_id'])
                # 要解绑的交换机ID
                request.add_query_param("VSwitchId", params['vswitch_id'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                time.sleep(DEFAULT_TIME * 5)
                return response_json
            except ServerException as e:
                ExceptionHandler.server_exception(e)
            except ClientException as e:
                ExceptionHandler.client_exception(e)
    
        def delete_route_table(self, params):
            """
            delete_route_table: 删除自定义路由表
            官网API参考链接: https://help.aliyun.com/document_detail/87601.html
            """
            try:
                request = DeleteRouteEntryRequest.DeleteRouteEntryRequest()
                request.set_action_name("DeleteRouteTable")
                # 路由表ID
                request.add_query_param("RouteTableId", params['route_table_id'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                # 判断route table是否被删除成功
                if CheckStatus.check_status(TIME_DEFAULT_OUT, DEFAULT_TIME * 5,
                                            self.describe_route_table_status,
                                            '', params['route_table_id']):
                    return response_json
            except ServerException as e:
                ExceptionHandler.server_exception(e)
            except ClientException as e:
                ExceptionHandler.client_exception(e)
    
        def describe_route_table(self, route_table_id):
            """
            describe_route_table: 查询路由表
            官网API参考链接: https://help.aliyun.com/document_detail/36014.html
            """
            try:
                request = DescribeRouteTablesRequest.DescribeRouteTablesRequest()
                # 路由表的ID
                request.set_RouteTableId(route_table_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_route_table_status(self, route_table_id):
            """
            describe_route_table_status: 查询路由表状态
            """
            response = self.describe_route_table(route_table_id)
            if len(response["RouteTables"]["RouteTable"]) == 0:
                return ''
            return response["RouteTables"]["RouteTable"][0]["RouteTableId"]
    
    def main():
        client = ACS_CLIENT
    
        vpc = Vpc(client)
        vswitch = VSwitch(client)
        route_table = RouteTable(client)
    
        params = {}
        params['cidr_block'] = "172.16.0.0/16"
        params['zone_id'] = "cn-zhangjiakou-b"
        params['route_table_name'] = "sdk_route_table"
    
        #创建vpc
        vpc_json = vpc.create_vpc()
        CommonUtil.log("create_vpc", vpc_json)
    
        #创建vswitch
        params['vpc_id'] = vpc_json['VpcId']
        vswitch_json = vswitch.create_vswitch(params)
        CommonUtil.log("create_vswitch", vswitch_json)
    
        #创建route table
        route_table_json = route_table.create_route_table(params)
        CommonUtil.log("create_route_table", route_table_json)
    
        #查询vswitch
        params['vswitch_id'] = vswitch_json['VSwitchId']
        vswitch_json = vswitch.describe_vswitch_attribute(params['vswitch_id'])
        CommonUtil.log("describe_vswitch_attribute", vswitch_json)
    
        #route table绑定vswitch
        params['route_table_id'] = route_table_json['RouteTableId']
        associate_json = route_table.associate_route_table(params)
        CommonUtil.log("associate_route_table", associate_json)
    
        #route table解绑vswitch
        unassociate_json = route_table.unassociate_route_table(params)
        CommonUtil.log("unassociate_route_table", unassociate_json)
    
        #删除route table
        delete_route_table_json = route_table.delete_route_table(params)
        CommonUtil.log("delete_route_table", delete_route_table_json)
    
        #删除vswitch
        delete_vswitch_json = vswitch.delete_vswitch(params)
        CommonUtil.log("delete_vswitch", delete_vswitch_json)
    
        #删除vpc
        delete_vpc_json = vpc.delete_vpc(params)
        CommonUtil.log("delete_vpc", delete_vpc_json)
    
    if __name__ == "__main__":
        sys.exit(main())
  5. 进入vpc_route_table.py所在的目录,执行如下命令,运行创建自定义路由表示例。
    python vpc_route_table.py
    系统显示类似如下:
    ---------------------------create_vpc---------------------------
    {
      "ResourceGroupId": "rg-acfmxazxxxxxxxx",
      "RouteTableId": "vtb-8vb65a5hqy8pcxxxxxxxx",
      "VRouterId": "vrt-8vbbbiftzizc3xxxxxxxx",
      "VpcId": "vpc-8vbebihln001gxxxxxxxx",
      "RequestId": "862F279B-4A27-4300-87A1-047FB9961AF2"
    }
    
    ---------------------------create_vswitch---------------------------
    {
      "VSwitchId": "vsw-8vb30klhn2is5xxxxxxxx",
      "RequestId": "1DA17173-CB61-4DCE-9C29-AABFDF3001A6"
    }
    
    ---------------------------create_route_table---------------------------
    {
      "RouteTableId": "vtb-8vbc4iwpo13apxxxxxxxx",
      "RequestId": "01E66E67-7801-4705-A02A-853BA7EEA89F"
    }
    
    ---------------------------describe_vswitch_attribute---------------------------
    
    {
      "Status": "Available",
      "NetworkAclId": "",
      "VpcId": "vpc-8vbebihln001gxxxxxxxx",
      "Description": "",
      "RouteTable": {
        "RouteTableId": "vtb-8vb65a5hqy8pcxxxxxxxx",
        "RouteTableType": "System"
      },
      "CidrBlock": "172.16.0.0/16",
      "CreationTime": "2019-04-12T03:08:43Z",
      "CloudResources": {
        "CloudResourceSetType": []
      },
      "ZoneId": "cn-zhangjiakou-b",
      "ResourceGroupId": "rg-acfmxazbxxxxxxxx",
      "VSwitchId": "vsw-8vb30klhn2is5xxxxxxxx",
      "RequestId": "C5A20BA3-E998-498D-8900-35AE5FDFFB77",
      "Ipv6CidrBlock": "",
      "VSwitchName": "",
      "AvailableIpAddressCount": 252,
      "IsDefault": false
    }
    
    ---------------------------associate_route_table---------------------------
    {
      "RequestId": "5FC0143B-D34B-47DC-8D49-AFD222EA5876"
    }
    
    ---------------------------unassociate_route_table---------------------------
    {
      "RequestId": "F0194718-6E4C-496C-9DA8-1B88DF1D6FAD"
    }
    
    ---------------------------delete_route_table---------------------------
    {
      "RequestId": "B5C068A6-137C-4337-8E3A-9E30E1726703"
    }
    
    ---------------------------delete_vswitch---------------------------
    {
      "RequestId": "26DEDBF8-2F0D-4A13-8CB3-23A84C947704"
    }
    
    ---------------------------delete_vpc---------------------------
    {
      "RequestId": "E1B2641F-5911-40E4-9F36-CC0B2EDD1747"
    }