https://aws.amazon.com/jp/about-aws/global-infrastructure/regional-product-services/ 2019/1/4でのサービス比較 http://nakano-tomofumi.hatenablog.com/entry/2018/04/05/094931 AWSリージョンのお勧めについて https://qiita.com/KoronHM/items/24d7f…