Find AWS ELBs with No Targets or Instances

import boto3 from botocore.exceptions import ClientError creds = _get_creds(cred_label)['creds'] access_key = creds['username'] secret_key = creds['password'] def aws_find_elbs_with_no_targets_or_instances(regions): """ Returns details of Elastic Load Balancers (ELBs) across specified AWS regions that are not associated with any target groups or instances. Args: regions (list): List of AWS regions to check. Returns: tuple: Tuple of status, and details of ELBs with no targets or instances. """ result = [] # List to store ELBs with no targets or instances all_load_balancers = [] # List to store all fetched ELBs # Iterate over each specified AWS region for reg in regions: try: # Create clients for ELBv2 (Application, Network, Gateway) and Classic ELB elbv2Client = boto3.client('elbv2', aws_access_key_id = access_key,aws_secret_access_key=secret_key,region_name=reg) elbClient = boto3.client('elb', aws_access_key_id = access_key,aws_secret_access_key=secret_key,region_name=reg) # Fetch ELBv2 Load Balancers using pagination elbv2_paginator = elbv2Client.get_paginator('describe_load_balancers') for page in elbv2_paginator.paginate(): for lb in page['LoadBalancers']: elb_dict = { "elb_name": lb['LoadBalancerName'], "elb_arn": lb['LoadBalancerArn'], "type": lb['Type'], "region": reg } all_load_balancers.append(elb_dict) # Fetch Classic Load Balancers elb_response = elbClient.describe_load_balancers() for lb in elb_response['LoadBalancerDescriptions']: elb_dict = { "elb_name": lb['LoadBalancerName'], "type": 'classic', "region": reg } all_load_balancers.append(elb_dict) # Handle potential client errors (e.g., permission issues) except ClientError as ce: print(f"Client error in region {reg}: {ce}") # Handle other exceptions except Exception as e: print(f"Error in region {reg}: {e}") # Identify ELBs with no associated targets or instances for load_balancer in all_load_balancers: if load_balancer['type'] in ['network', 'application']: elbv2Client = boto3.client('elbv2',aws_access_key_id=access_key,aws_secret_access_key=secret_key, region_name=load_balancer['region']) target_groups = elbv2Client.describe_target_groups(LoadBalancerArn=load_balancer['elb_arn']) if not target_groups['TargetGroups']: result.append(load_balancer) elif load_balancer['type'] == 'classic': elbClient = boto3.client('elb', aws_access_key_id=access_key,aws_secret_access_key=secret_key,region_name=load_balancer['region']) instance_health = elbClient.describe_instance_health(LoadBalancerName=load_balancer['elb_name']) if not instance_health['InstanceStates']: result.append(load_balancer) elif load_balancer['type'] == 'gateway': elbv2Client = boto3.client('elbv2', aws_access_key_id=access_key,aws_secret_access_key=secret_key,region_name=load_balancer['region']) listeners = elbv2Client.describe_listeners(LoadBalancerArn=load_balancer['elb_arn']) if not listeners['Listeners']: result.append(load_balancer) # Return identified ELBs return (False, result) if result else (True, None) # Specify the AWS regions to check #regions_to_check = ['us-west-1', 'us-east-1'] # Modify this list as needed # Find ELBs with no targets or instances output_status, output_data = aws_find_elbs_with_no_targets_or_instances(regions) # Print and Delete the identified ELBs if output_status: print("No load balancers found with no targets or instances.") else: for elb in output_data: print(f"ELB Name: {elb['elb_name']}") if 'elb_arn' in elb: print(f"ELB ARN: {elb['elb_arn']}") print(f"Type: {elb['type']}") print(f"Region: {elb['region']}") print("-" * 40) context.skip_sub_tasks=True