List all unused AWS AMIs

import boto3 from botocore.exceptions import NoCredentialsError, PartialCredentialsError, ClientError, BotoCoreError creds = _get_creds(cred_label)['creds'] access_key = creds['username'] secret_key = creds['password'] # Function to list all AWS regions def list_all_regions(): ec2 = boto3.client('ec2', aws_access_key_id=access_key, aws_secret_access_key=secret_key, region_name='us-east-1') try: return [region['RegionName'] for region in ec2.describe_regions()['Regions']] except ClientError as e: print(f"Failed to list regions: {e}") return [] # Function to list unused AMIs based on the provided region def list_unused_amis(region_name, owner_id): try: ec2 = boto3.client('ec2', aws_access_key_id=access_key, aws_secret_access_key=secret_key, region_name=region_name) amis = ec2.describe_images(Owners=[owner_id])['Images'] instances = ec2.describe_instances()['Reservations'] used_amis = set(instance['ImageId'] for reservation in instances for instance in reservation['Instances']) unused_amis = [{ 'Region': region_name, 'ImageId': ami['ImageId']} for ami in amis if ami['ImageId'] not in used_amis] return unused_amis except (NoCredentialsError, PartialCredentialsError) as e: print(f"Authentication error in region {region_name}: {e}") except BotoCoreError as e: print(f"BotoCore error in region {region_name}: {e}") except ClientError as e: print(f"Client error in region {region_name}: {e}") except Exception as e: print(f"Unexpected error in region {region_name}: {e}") return [] def display_unused_amis(all_unused_amis): # Initialize table with the desired structure and headers table = context.newtable() table.title = "Unused AMI Details" table.num_cols = 2 # Number of columns for ImageId and Region table.num_rows = 1 table.has_header_row = True # Define header names based on the new structure headers = ["AMI ID", "Region"] # Set headers in the first row for col_num, header in enumerate(headers): table.setval(0, col_num, header) # Populate the table with AMI data for row_num, ami in enumerate(all_unused_amis, start=1): # Starting from the second row table.num_rows += 1 # Add a row for each AMI values = [ ami['ImageId'], ami['Region'] ] for col_num, value in enumerate(values): table.setval(row_num, col_num, value) # Main Execution # Specify 'None' for all regions or a specific region like 'us-east-1' # region_name = None # or 'us-east-1' owner_id = account_id regions = [region_name] if region_name else list_all_regions() all_unused_amis = [] for region in regions: unused_amis = list_unused_amis(region, owner_id) all_unused_amis.extend(unused_amis) if all_unused_amis: display_unused_amis(all_unused_amis) '''for ami in all_unused_amis: print(f"Unused AMI: {ami['ImageId']} in Region: {ami['Region']}")''' else: print("No Unused AMIs found across the specified regions.") context.proceed = False # To stop execution and enable user intervention for the downstream remediation task