This topic describes how to use Alibaba Cloud SDK for Python to create and delete virtual private clouds (VPCs) and vSwitches.

Prerequisites

Before you run the Alibaba Cloud SDK for Python, make sure that the following requirements are met:
  • An Alibaba Cloud account and an AccessKey pair (AccessKey ID and AccessKey secret) are required to use the Alibaba Cloud SDK for Python. You can create and view your AccessKey pair on the Console Logon Management page in the Resource Access Management (RAM) console.
  • Make sure that the Alibaba Cloud SDK for Python is installed. For more information, see aliyun-python-sdk-vpc 3.0.8.
  • The VPC Python example library is downloaded.
    Go to the directory wheresetup.py is located, and run the following command to initialize the environment:
    python setup.py install

Background information

The code sample in this topic includes the following operations:
  1. Create a VPC in the China (Zhangjiakou) region.
  2. Create a vSwitch in the VPC.
  3. Delete the VPC.
  4. Delete the vSwitch.

Procedure

  1. Open the aliyun-openapi-python-sdk-examples\sdk_examples\examples\vpc folder in the downloaded SDK directory.
  2. Open the vpc_quick_start.py file in your text editor. Set the required parameters, save the configurations, and then exit the editor.
    The following sample code is provided:
    #encoding=utf-8
    import sys
    import json
    import time
    
    from aliyunsdkcore.acs_exception.exceptions import ServerException, ClientException
    from aliyunsdkvpc.request.v20160428 import CreateVpcRequest
    from aliyunsdkvpc.request.v20160428 import CreateVSwitchRequest
    from aliyunsdkvpc.request.v20160428 import DeleteVSwitchRequest
    from aliyunsdkvpc.request.v20160428 import DeleteVpcRequest
    from aliyunsdkvpc.request.v20160428 import DescribeVSwitchAttributesRequest
    from aliyunsdkvpc.request.v20160428 import DescribeVpcAttributeRequest
    from aliyunsdkcore.client import AcsClient
    
    class VpcQuickStart(object):
        def __init__(self, client):
            self.client = client
            self.TIME_DEFAULT_OUT = 15
            self.DEFAULT_TIME = 1
    
        def check_status(self,time_default_out, default_time, func, check_status, id):
            for i in range(time_default_out):
                time.sleep(default_time)
                status = func(id)
                if status == check_status:
                    return True
            return False
    
        def create_vpc(self):
            try:
                request = CreateVpcRequest.CreateVpcRequest()
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                # Check whether the VPC is in the Available state.
                if self.check_status(self.TIME_DEFAULT_OUT, self.DEFAULT_TIME,
                                            self.describe_vpc_status,
                                            "Available", response_json['VpcId']):
                    return response_json
            except ServerException as e:
                print(e)
            except ClientException as e:
                print(e)
    
        def delete_vpc(self, params):
            try:
                request = DeleteVpcRequest.DeleteVpcRequest()
                # The ID of the VPC that you want to delete.
                request.set_VpcId(params['vpc_id'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                return response_json
            except ServerException as e:
                print(e)
            except ClientException as e:
                print(e)
    
        def describe_vpc_attribute(self, vpc_id):
            try:
                request = DescribeVpcAttributeRequest.DescribeVpcAttributeRequest()
                # The ID of the VPC that you want to query.
                request.set_VpcId(vpc_id)
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                return response_json
            except ServerException as e:
                print(e)
            except ClientException as e:
                print(e)
    
        def describe_vpc_status(self, vpc_id):
            response = self.describe_vpc_attribute(vpc_id)
            return response["Status"]
    
        def create_vswitch(self, params):
            try:
                request = CreateVSwitchRequest.CreateVSwitchRequest()
                # The ID of the zone to which the vSwitch belongs. You can call the DescribeZones operation to query zone IDs.
                request.set_ZoneId(params['zone_id'])
                # The ID of the VPC to which the vSwitch belongs.
                request.set_VpcId(params['vpc_id'])
                # The CIDR block of the vSwitch.
                request.set_CidrBlock(params['cidr_block'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                # Check whether the vSwitch is in the Available state.
                if self.check_status(self.TIME_DEFAULT_OUT, self.DEFAULT_TIME,
                                            self.describe_vswitch_status,
                                            "Available", response_json['VSwitchId']):
                    return response_json
            except ServerException as e:
                print(e)
            except ClientException as e:
                print(e)
    
        def describe_vswitch_attribute(self, vswitch_id):
            try:
                request = DescribeVSwitchAttributesRequest.DescribeVSwitchAttributesRequest()
                request.set_VSwitchId(vswitch_id)
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                return response_json
            except ServerException as e:
                print(e)
            except ClientException as e:
                print(e)
    
        def describe_vswitch_status(self, vswitch_id):
            response = self.describe_vswitch_attribute(vswitch_id)
            return response["Status"]
    
        def delete_vswitch(self, params):
            try:
                request = DeleteVSwitchRequest.DeleteVSwitchRequest()
                # The ID of the vSwitch that you want to delete.
                request.set_VSwitchId(params['vswitch_id'])
                response = self.client.do_action_with_exception(request)
                response_json = json.loads(response)
                # Check whether the vSwitch is deleted.
                if self.check_status(self.TIME_DEFAULT_OUT, self.DEFAULT_TIME * 5,
                                            self.describe_vswitch_status,
                                            '', params['vswitch_id']):
                    return response_json
            except ServerException as e:
                print(e)
            except ClientException as e:
                print(e)
    
    if __name__ == "__main__":
        client = AcsClient('accessKeyId','accessSecret','cn-shanghai',timeout = 35)
        vpc_quick_start = VpcQuickStart(client)
    
        params = {}
        params['zone_id'] = "cn-zhangjiakou-b"
        params['cidr_block'] = "172.16.0.0/16"
    
        # Create a VPC.
        vpc_json = vpc_quick_start.create_vpc()
        print("---------------------------create_vpc---------------------------")
        print(vpc_json)
    
        # Create a vSwitch.
        params['vpc_id'] = vpc_json['VpcId']
        vswitch_json = vpc_quick_start.create_vswitch(params)
        print("---------------------------create_vswitch---------------------------")
        print(vswitch_json)
    
        # Delete the vSwitch.
        params['vswitch_id'] = vswitch_json['VSwitchId']
        vswitch_json = vpc_quick_start.delete_vswitch(params)
        print("---------------------------delete_vswitch---------------------------")
        print(vswitch_json)
    
        # Delete the VPC.
        vpc_json = vpc_quick_start.delete_vpc(params)
        print("---------------------------delete_vpc---------------------------")
        print(vpc_json)
  3. Go to the directory where the vpc_quick_start.py file is stored and run the following command to create and delete a VPC and a vSwitch:
    python vpc_quick_start.py

Result

The following output is returned:
---------------------------create_vpc---------------------------
{
  "ResourceGroupId": "rg-acfmxazxxxxxxxx",
  "RouteTableId": "vtb-8vbf9ud7xrcn9xxxxxxxx",
  "VRouterId": "vrt-8vb1qjnxcm03nxxxxxxxx",
  "VpcId": "vpc-8vb67v4ozd8wfxxxxxxxx",
  "RequestId": "5052F988-75CC-46AD-A1A6-0E9E445BD0D5"
}

---------------------------create_vswitch---------------------------
{
  "VSwitchId": "vsw-8vbqn2at0kljjxxxxxxxx",
  "RequestId": "0BA1ABF7-21CF-4460-9A86-0BB783886E58"
}

---------------------------delete_vswitch---------------------------
{
  "RequestId": "D691F04B-A6EE-49A7-A434-4A45DD3AA0B8"
}

---------------------------delete_vpc---------------------------
{
  "RequestId": "4570F816-AB8D-45EA-8913-6AE787C1632C"
}