Lambda 函数基于使用 Boto3 的标签筛选器停止所有区域中的 RDS 实例

Question

我已将此代码放在一起以停止所有 aws 区域中的 rds 实例。目前，此代码仅停止我当前默认区域中的实例。我在这里缺少什么吗？ 标签： 这些实例首先被一个标签过滤，标签的 Key = ttl 和 Value = some date 筛选： 过滤器 returns 仅标记值小于今天的实例。

import boto3
from datetime import datetime
 

current_date = datetime.today().strftime('%Y-%m-%d')
available_regions = boto3.Session().get_available_regions('rds')

def lambda_handler(event, context):

    for region in available_regions:
        rds = boto3.client('rds', region_name=region)
        
      # get all instances 
    instances = rds.describe_db_instances()

    stopInstances = []   
    
      # Locate all instances that are tagged for stop based on date.
    for instance in instances["DBInstances"]:
        # Example RDS Instance tags:
        tags = rds.list_tags_for_resource(ResourceName=instance["DBInstanceArn"])
            
        for tag in tags["TagList"]:

              if tag['Key'] == 'ttl' or tag['Key'] == '' :

                  if tag['Value'] < current_date:

                      stopInstances.append(instance["DBInstanceIdentifier"])
                      rds.stop_db_instance(DBInstanceIdentifier=instance["DBInstanceIdentifier"])    
                    
                      pass

                      pass


      # print  if instances will stop. 
    if len(stopInstances) > 0:
       print ("stopInstances")
    else:
       print ("No rds instances to shutdown.")

Answer 1

此代码现在有效：

import boto3
from datetime import datetime

# Get current time in format yyyy-mm-dd
# define boto3 the connection
current_date = datetime.today().strftime('%Y-%m-%d')
# get all regions
available_regions = boto3.Session().get_available_regions('rds')
    
def lambda_handler(event, context):

    for region in available_regions:
        rds = boto3.client('rds', region_name=region)
        

      # Define instances 
        instances = rds.describe_db_instances()

        stopInstances = []   
    

      # Define and locate tags.
        for instance in instances["DBInstances"]:
    
            tags = rds.list_tags_for_resource(ResourceName=instance["DBInstanceArn"])
            
            for tag in tags["TagList"]:

              if tag['Key'] == 'ttl' or tag['Key'] == '' :

                  if tag['Value'] < current_date:
    # Stop instances matching a tag pattern
                      stopInstances.append(instance["DBInstanceIdentifier"])
                      rds.stop_db_instance(DBInstanceIdentifier=instance["DBInstanceIdentifier"])    
                    
                      pass

                      pass


     # print  all instances that will stop. 
    if len(stopInstances) > 0:
       print ("stopInstances")
    else:
       print ("No rds instances to shutdown.")