pseudo-code to run the after_hours

you_pick.py

class YourHandler:
    # ...
    CEREBRO_URL = 'https://cerebro-backend/api/v1/'
    def is_handling_this_request(event, context):
        return True if the event came from your trigger

    def handle_request(event, context):
        resource_list = []
        def _get_id(hostname):
            rid = requests.get(CEREBRO_URL + 'instances?hostname=' + hostname)['aws_id']
            if rid: 
                return rid 
            else:
                # get ip from aws
                found_id = ec2.describe_instances(filter based on ip or whatever)['instance_id']
                # update cerebro instances table so it can have an up to date resource id
                requests.put(CEREBRO_URL + 'instances', data={'aws_id':found_id})
                return found_id

        ah_data = requests.get(CEREBRO_URL + 'after_hours')
        for resource in ah_data:
            resource_list.append((
                _get_id(ah_data['hostname']), 
                ah_data['start_time'], 
                ah_data['end_time']))
        
        # find out how to trigger the main lambda to shut down all these resources
        lambda.invoke(MAIN_LAMBDA, resource_list)