Clean-up EC2 Instances - Lambda Function

index.py

import json
import boto3

ec2_client = boto3.client('ec2')
client = boto3.client('resourcegroupstaggingapi')

def lambda_handler(event, context):
    # TODO implement
    ec2_instances = client.get_resources(
    TagFilters=[

        {
            'Key': 'Purpose',
            'Values': ['Demo', 'Test']
        }
    ],
    ResourceTypeFilters=[
        'ec2:instance'
    ]
    )
    instances = []
    for item in ec2_instances['ResourceTagMappingList']:
        instances.append(item['ResourceARN'].split('/')[-1])

    response = ec2_client.terminate_instances(InstanceIds=instances)
    
    return {
        'statusCode': 200,
        'body': response
    }