Python Lambda函数，用于检查特定标记是否不存在

我正在尝试获得以下信息：

获取所有符合以下条件之一的EC2实例：

使用标记所有者和值Unknown或Unknown标记

你是丢失的标签所有者吗

我能够完成1）但不知道如何完成2）

---

正如我在评论中所说，您希望放弃

Owner

过滤器，以便您的响应也包括没有Owner标记的实例，然后您可以在本地进行过滤

reservations = ec.describe_instances().get('Reservations', [])
for reservation in reservations:
    for instance in reservation['Instances']:
        tags = {}
        for tag in instance['Tags']:
            tags[tag['Key']] = tag['Value']

        if not 'Owner' in tags:
            print instance['InstanceId'] + " does not have Owner tag"
        elif tags['Owner'] in ['Unknown', 'unknown']:
            print instance['InstanceId'] + " has [U|u]nknown Owner tag"

---

如果您的帐户中有大量实例，描述实例的响应可能会被分页，您也必须处理这个问题。

将我的问题和@Rage-answer中的代码结合起来，我成功地得到了我想要的

再次感谢你

import boto3   
import collections     
import datetime     
import time     
import sys 

ses = boto3.client('ses')

email_from = 'Email'
email_to = 'Email'
email_cc = 'Email'
emaiL_subject = 'Subject'
email_body = 'Body'






ec = boto3.client('ec2', 'eu-west-1')     
ec2 = boto3.resource('ec2', 'eu-west-1')     
from datetime import datetime
from dateutil.relativedelta import relativedelta

#create date variables 

date_after_month = datetime.now()+ relativedelta(days=7)
#date_after_month.strftime('%d/%m/%Y')
today=datetime.now().strftime('%d/%m/%Y')






def lambda_handler(event, context): 
  #Get instances with Owner Taggs and values Unknown/known
    instance_ids = []
    reservations = ec.describe_instances().get('Reservations', []) 

    for reservation in reservations:
     for instance in reservation['Instances']:
        tags = {}
        for tag in instance['Tags']:
            tags[tag['Key']] = tag['Value']
        if not 'Owner' in tags or tags['Owner']=='unknown' or tags['Owner']=='Unknown':
              instance_ids.append(instance['InstanceId'])  

                #Check if "TerminateOn" tag exists:

              if 'TerminateOn' in tags:  
                  #compare TerminteOn value with current date
                    if tags["TerminateOn"]==today:

                    #Check if termination protection is enabled
                     terminate_protection=ec.describe_instance_attribute(InstanceId =instance['InstanceId'] ,Attribute = 'disableApiTermination')
                     protection_value=(terminate_protection['DisableApiTermination']['Value'])
                     #if enabled disable it
                     if protection_value == True:
                        ec.modify_instance_attribute(InstanceId=instance['InstanceId'],Attribute="disableApiTermination",Value= "False" )
                    #terminate instance 
                     ec.terminate_instances(InstanceIds=instance_ids)
                     print "terminated" + str(instance_ids)
                     #send email that instance is terminated

                    else: 
                    #Send an email to engineering that this instance will be removed X amount of days (calculate the date based on today's date and the termination date."

                      now=datetime.now()
                      future=tags["TerminateOn"]
                      TerminateOn = datetime.strptime(future, "%d/%m/%Y")
                      days= (TerminateOn-now).days
                      print str(instance_ids) +  " will be removed in "+ str(days) + " days"


              else: 
                 if not 'TerminateOn' in tags:#, create it  
                  ec2.create_tags(Resources=instance_ids,Tags=[{'Key':'TerminateOn','Value':date_after_month.strftime('%d/%m/%Y')}])
                  ec.stop_instances(InstanceIds=instance_ids)

                  print "was shut down "+format(','.join(instance_ids))

---

不要将

Owner

用作标记过滤器，因为您显然希望包含没有Owner标记的实例。然后，您可以在返回的实例中查找没有所有者标记的实例

import boto3   
import collections     
import datetime     
import time     
import sys 

ses = boto3.client('ses')

email_from = 'Email'
email_to = 'Email'
email_cc = 'Email'
emaiL_subject = 'Subject'
email_body = 'Body'






ec = boto3.client('ec2', 'eu-west-1')     
ec2 = boto3.resource('ec2', 'eu-west-1')     
from datetime import datetime
from dateutil.relativedelta import relativedelta

#create date variables 

date_after_month = datetime.now()+ relativedelta(days=7)
#date_after_month.strftime('%d/%m/%Y')
today=datetime.now().strftime('%d/%m/%Y')






def lambda_handler(event, context): 
  #Get instances with Owner Taggs and values Unknown/known
    instance_ids = []
    reservations = ec.describe_instances().get('Reservations', []) 

    for reservation in reservations:
     for instance in reservation['Instances']:
        tags = {}
        for tag in instance['Tags']:
            tags[tag['Key']] = tag['Value']
        if not 'Owner' in tags or tags['Owner']=='unknown' or tags['Owner']=='Unknown':
              instance_ids.append(instance['InstanceId'])  

                #Check if "TerminateOn" tag exists:

              if 'TerminateOn' in tags:  
                  #compare TerminteOn value with current date
                    if tags["TerminateOn"]==today:

                    #Check if termination protection is enabled
                     terminate_protection=ec.describe_instance_attribute(InstanceId =instance['InstanceId'] ,Attribute = 'disableApiTermination')
                     protection_value=(terminate_protection['DisableApiTermination']['Value'])
                     #if enabled disable it
                     if protection_value == True:
                        ec.modify_instance_attribute(InstanceId=instance['InstanceId'],Attribute="disableApiTermination",Value= "False" )
                    #terminate instance 
                     ec.terminate_instances(InstanceIds=instance_ids)
                     print "terminated" + str(instance_ids)
                     #send email that instance is terminated

                    else: 
                    #Send an email to engineering that this instance will be removed X amount of days (calculate the date based on today's date and the termination date."

                      now=datetime.now()
                      future=tags["TerminateOn"]
                      TerminateOn = datetime.strptime(future, "%d/%m/%Y")
                      days= (TerminateOn-now).days
                      print str(instance_ids) +  " will be removed in "+ str(days) + " days"


              else: 
                 if not 'TerminateOn' in tags:#, create it  
                  ec2.create_tags(Resources=instance_ids,Tags=[{'Key':'TerminateOn','Value':date_after_month.strftime('%d/%m/%Y')}])
                  ec.stop_instances(InstanceIds=instance_ids)

                  print "was shut down "+format(','.join(instance_ids))