Boto3 + SSM Public Parameter でリージョンごとのサービスエンドポイント一覧を作ってみた

import csv
import boto3

REGION = 'ap-northeast-1'
CSV_FILENAME = '{}_endpoint.csv'.format(REGION)

def generate_services(response_iterator):
    services = []
    for page in response_iterator:
        for parameter in page['Parameters']:
            service = parameter['Value']
            services.append(service)
    services.sort()
    return services

def generate_endpoint_ssmpaths(services):
    endpoint_ssmpaths = []
    for service in services:
        endpoint_path = '/aws/service/global-infrastructure/regions/{region}/services/{service}/endpoint'.format(region=REGION, service=service)
        endpoint_ssmpaths.append(endpoint_path)
    return endpoint_ssmpaths

def generate_endpoints(endpoint_paths, client):
    endpoints = []
    for endpoint_path in endpoint_paths:
        response = client.get_parameters(
            Names=[
                endpoint_path,
            ]
        )
        endpoint = response['Parameters'][0]['Value']
        endpoints.append(endpoint)
    return endpoints

def main():
    client = boto3.client('ssm')
    paginator = client.get_paginator('get_parameters_by_path')
    response_iterator = paginator.paginate(
        Path='/aws/service/global-infrastructure/regions/{}/services'.format(REGION),
        PaginationConfig={
            'MaxItems': 1000, # サービス数（エンドポイント数）が 1000 を超えたらここを増やしましょう。すぐに超えちゃうかもしれませんね。
        }
    )

    services = generate_services(response_iterator)
    endpoint_ssmpaths = generate_endpoint_ssmpaths(services)
    endpoints = generate_endpoints(endpoint_ssmpaths, client)
    
    with open(CSV_FILENAME, 'w') as f:
        writer = csv.writer(f)
        for i in zip(services, endpoints):
            writer.writerow(i)    

if __name__ == "__main__":
    main()