List AWS RDS Instances of a specific instance type

import boto3 creds = _get_creds(cred_label)['creds'] access_key = creds['username'] secret_key = creds['password'] def list_specific_rds_instances(region=None): old_gen_instances = {} # List of regions to check try: ec2_client = boto3.client('ec2',aws_access_key_id=access_key,aws_secret_access_key=secret_key,region_name='us-east-1') regions_to_check = [region] if region else [region['RegionName'] for region in ec2_client.describe_regions()['Regions']] except Exception as e: print(f"Error listing AWS regions: {e}") regions_to_check = [region] if region else [] for region in regions_to_check: try: rds = boto3.client('rds',aws_access_key_id=access_key,aws_secret_access_key=secret_key, region_name=region) # Creating the RDS client for the specified region paginator = rds.get_paginator('describe_db_instances') for page in paginator.paginate(): for instance in page['DBInstances']: if instance_type_to_match in instance['DBInstanceClass']: # Replace with the actual type you are matching old_gen_instances.setdefault(region, []).append(instance['DBInstanceIdentifier']) except rds.exceptions.DBInstanceNotFoundFault: print(f"Specific error in region {region}: DB Instance not found.") except Exception as e: print(f"General error listing RDS instances in region {region}: {e}") return old_gen_instances # Set region to None for all regions, or specify a valid AWS region string for a specific region #target_region = None #instance_type_to_match = 'db.m4' # Replace with your actual instance type to match # List RDS instances that are of the matching type old_gen_instances = list_specific_rds_instances(target_region) # Print the results if old_gen_instances: print("Matching RDS instances found:") for region, instances in old_gen_instances.items(): print(f"In region {region}:") for instance_id in instances: print(f" - {instance_id}") else: print("No such RDS instances found.") context.proceed = False