Stop an AWS EC2 Instance

import boto3 from botocore.exceptions import ClientError creds = _get_creds(cred_label)['creds'] access_key = creds['username'] secret_key = creds['password'] if locals().get('filtered_instances') is None: filtered_instances = [] def stop_ec2_instances(instances_to_stop): # To keep track of instances successfully stopped stopped_instances = [] # To keep track of instances that failed to stop failed_instances = [] # To keep track of instances that were already stopped or in the process of stopping already_stopped_instances = [] # Iterate over each instance in the list for instance_info in instances_to_stop: instance_id = instance_info['InstanceId'] region = instance_info['Region'] # Initialize the EC2 client for the specific region ec2_client = boto3.client('ec2', aws_access_key_id=access_key,aws_secret_access_key=secret_key, region_name=region) # Fetch the current state of the instance try: response = ec2_client.describe_instances(InstanceIds=[instance_id]) instance_state = response['Reservations'][0]['Instances'][0]['State']['Name'] if instance_state in ["stopped", "stopping"]: already_stopped_instances.append(instance_id) print(f"Instance {instance_id} in region {region} is already in '{instance_state}' state.") continue # If the instance is not already stopped or stopping, then attempt to stop it ec2_client.stop_instances(InstanceIds=[instance_id]) stopped_instances.append(instance_id) print(f"Instance {instance_id} in region {region} has been stopped.") except ClientError as e: failed_instances.append(instance_id) print(f"Error with instance {instance_id} in region {region}: {e}") # Print a summary of the actions print("\nSummary:\n") if stopped_instances: print(f"Successfully stopped {len(stopped_instances)} instances: {', '.join(stopped_instances)}") if already_stopped_instances: print(f"{len(already_stopped_instances)} instances were already stopped or stopping: {', '.join(already_stopped_instances)}") if failed_instances: print(f"Failed to stop {len(failed_instances)} instances: {', '.join(failed_instances)}") ''' # Sample list of instances to stop taken from previous task or provide these instances to use the task in a standalone manner instances_to_stop = [ {'InstanceId': 'i-01615251421b8b5da', 'Region': 'us-east-1'}, {'InstanceId': 'i-057155192c87ea310', 'Region': 'us-east-1'} # ... (other instances) ] ''' stop_ec2_instances(filtered_instances) # passed down from previous task otherwise pass instances_to_stop to function to use the task in a standalone manner.