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lambda函数检查特定标记是否不存在python

aws-lambda amazon-ec2 amazon-web-services python

Milister · 技术社区 · 6 年前

我正试着得到以下信息:

获取以下所有EC2实例:

使用标记所有者和值unknown或unknown标记
缺少标记所有者

我能做到1)但不知道如何做到2)

import boto3   
import collections     
import datetime     
import time     
import sys 

ec = boto3.client('ec2', 'eu-west-1')     
ec2 = boto3.resource('ec2', 'eu-west-1')     


def lambda_handler(event, context):           
    instance_ids = []
    reservations = ec.describe_instances(     
        Filters=[     
            {'Name': 'tag:Owner', 'Values': ['Unknown', 'unknown']},     
        ]     
    ).get('Reservations', []) 

    for reservation in reservations:
          instances = reservation['Instances']
          for instance in instances:
              instance_ids.append(instance['InstanceId'])

    print("Stopping instances: {}".format(','.join(instance_ids)))

2 回复 | 直到 6 年前

RaGe 6 年前

就像我在评论中说的你想放弃 Owner 筛选以便您的响应也包括没有所有者标记的实例,然后您可以在本地进行筛选。

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,则描述实例的响应可能会分页,您还必须处理该问题。

Milister 6 年前

把我的问题和“愤怒的回答”的代码结合起来,我终于得到了我想要的

再次感谢愤怒!!

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))