What is RightScale and in what cases is it needed?

javascript php css html jquery wordpress python linux web-development mysql android windows java layout c# computer-networks node.js cpp iron yii vue.js 1C-Bitrix react laravel django nginx system-administration search-engine-optimization api ubuntu the-it-education. ajax sql programming hosting cms design apache google-chrome bootstrap Vkontakte macos google network-administration git laptops algorithms regular-expressions unity-game-engine email angular database network-equipment software wooсommerce debian .net ios information-security video law-in-it browsers books parsing wi-fi game-development career htaccess postgresql telegram mikrotik mobile-development ruby-on-rails the-domain-name-system modx Yandex c json opencart Habr freelance vpn asp.net windows-server symfony bots hard-drives math qt DIY audio frontend payment-system bash electronics gulp.js user-interface docker online-shopping