操作场景
本文档使用了腾讯云开发者工具套件（SDK）3.0及云 API 接口，实现在销毁包年包月云服务器实例时，同时销毁已挂载至该实例的所有包年包月云硬盘。本文档适用于销毁仅含有包年包月云硬盘的包年包月云服务器，提供 Python 语言的示例代码，请您结合实际情况进行使用。注意销毁/退还云服务器实例及云硬盘所造成的影响请参见 相关影响。
前提条件
已具备计费模式为包年包月的云服务器实例，且该实例已挂载云硬盘。已前往 API 密钥管理 页面获取 SecretID 及 SecretKey。
操作步骤
安装依赖环境及 SDK
请根据您实际使用的开发语言，安装对应依赖环境及 SDK：Python1. 安装 Python 3.6 – 3.9 版本，详情请参见 Python 官网。2. 执行以下命令，安装 Python SDK。更多信息请参见 Tencent Cloud SDK 3.0 for Python。
pip install --upgrade tencentcloud-sdk-python
运行示例代码
示例代码如下，您可根据实际情况进行使用：Pythonmain 程序示例代码：
-- coding: utf-8 --import sysfrom tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKExceptionfrom TerminateTotalInstance import TerminateTotalInstance
if __name__ == '__main__': try: region = "ap-beijing" ins = "ins-irmer45l" TerminateTotalInstance(region=region).process(instance_id=instance_id) print("done!") except TencentCloudSDKException as e: print(e) except Exception as e: print("failed")
销毁实例及云硬盘示例代码：
# -*- coding: utf-8 -*-import loggingimport time
from tencentcloud.common import credentialfrom tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKExceptionfrom tencentcloud.common.profile.client_profile import ClientProfilefrom tencentcloud.common.profile.http_profile import HttpProfilefrom tencentcloud.cvm.v20170312 import cvm_client, models as cvm_modelsfrom tencentcloud.cbs.v20170312 import cbs_client, models as cbs_models
class TerminateTotalInstance(object): def __init__(self, region): # 默认读取环境变量 TENCENTCLOUD_SECRET_ID 和 TENCENTCLOUD_SECRET_KEY 获取 secretId 和 secretKey # 更多凭证管理方式，请参考：https://github.com/TencentCloud/tencentcloud-sdk-python#%E5%87%AD%E8%AF%81%E7%AE%A1%E7%90%86 self.cred = credential.EnvironmentVariableCredential().get_credential() self.cbs_client = self.__create_cbs_client(region) self.cvm_client = self.__create_cvm_client(region)
def get_cred(self): # 如果是根据token获取的身份， 这里需要判断一下token是否有效 # 如果无效， 重新获取cred if not self.cred: self.cred = credential.EnvironmentVariableCredential().get_credential() return self.cred def process(self, instance_id): # 获取云盘 cbs_ids = self.describe_disks_for_instance(instance_id)
# 退还实例 cvm_resp, cvm_api_errors = self.terminate_instance(instance_id) if cvm_api_errors: raise Exception(cvm_api_errors)
# 确认子机退还成功 is_succ, cvm_api_errors = self.check_terminate_instance_success(instance_id) if not is_succ: raise Exception(cvm_api_errors)
# 解挂并批量退还云盘 if not cbs_ids: return cbs_resp, cbs_api_errors = self.detach_disks(cbs_ids) if cbs_api_errors: raise Exception(cbs_api_errors)
cbs_resp, cbs_api_errors = self.terminate_disks_for_instance(cbs_ids) if cbs_api_errors: raise Exception(cbs_api_errors)
def terminate_instance(self, instance_id): # 调用失败历史 cvm_api_errors = []
for i in range(0, 5): try: req = cvm_models.TerminateInstancesRequest() params = '{"InstanceIds":["%s"]}' % instance_id req.from_json_string(params) resp = self.cvm_client.TerminateInstances(req) cvm_api_errors.clear() return resp, cvm_api_errors
except TencentCloudSDKException as e: # 失败重试，记录报错 cvm_api_errors.append(e) logging.error(e) time.sleep(3)
return None, cvm_api_errors
def check_terminate_instance_success(self, instance_id): # 调用失败历史 cvm_api_errors = []
for _ in range(0, 30): try: req = cvm_models.DescribeInstancesStatusRequest() params = '{"InstanceIds":["%s"]}' % instance_id req.from_json_string(params) resp = self.cvm_client.DescribeInstancesStatus(req) cvm_api_errors.clear() if resp.TotalCount > 0: if resp.InstanceStatusSet[0].InstanceState == "SHUTDOWN": return True, cvm_api_errors else: logging.error(resp)
except TencentCloudSDKException as e: # 失败重试，记录报错 cvm_api_errors.append(e) logging.error(e) time.sleep(6)
return False, cvm_api_errors
def describe_disks_for_instance(self, instance_id): # 获取绑定在子机上的数据盘 req = cbs_models.DescribeDisksRequest() params = '{"Filters": [ { "Name": "instance-id", "Values": [ "%s" ]}]}' % instance_id req.from_json_string(params) disks = self.cbs_client.DescribeDisks(req) if hasattr(disks, "DiskSet"): cbs_ids = [disk.DiskId for disk in disks.DiskSet if disk.DiskUsage == "DATA_DISK"] else: cbs_ids = list() return cbs_ids
def detach_disks(self, cbs_ids): # 解挂数据盘 cbs_api_errors = [] for _ in range(0, 5): try: req = cbs_models.DetachDisksRequest() req.DiskIds = cbs_ids resp = self.cbs_client.DetachDisks(req) cbs_api_errors.clear() return resp, cbs_api_errors
except TencentCloudSDKException as e: # 失败重试，记录报错 cbs_api_errors.append(e) logging.error(e) time.sleep(3)
return None, cbs_api_errors
def terminate_disks_for_instance(self, cbs_ids): # 退还数据盘 cbs_api_errors = [] for _ in range(0, 10): try: req = cbs_models.TerminateDisksRequest() req.DiskIds = cbs_ids resp = self.cbs_client.TerminateDisks(req) cbs_api_errors.clear() return resp, cbs_api_errors
except TencentCloudSDKException as e: # 失败重试，记录报错 cbs_api_errors.append(e) logging.error(e) time.sleep(6) return None, cbs_api_errors
def __create_cbs_client(self, region): http_profile = HttpProfile() http_profile.endpoint = "cbs.tencentcloudapi.com"
client_profile = ClientProfile() client_profile.httpProfile = http_profile return cbs_client.CbsClient(self.get_cred(), region, client_profile)
def __create_cvm_client(self, region): http_profile = HttpProfile() http_profile.endpoint = "cvm.tencentcloudapi.com"
client_profile = ClientProfile() client_profile.httpProfile = http_profile return cvm_client.CvmClient(self.get_cred(), region, client_profile)
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