All App Engine standard environment services are composed of two parts—the application code and a configuration file that informs App Engine how your application should be run. The implementation details and configuration options for App Engine standard applications varies from language to language, but the Google Cloud SDK understands how to build, package, and deploy applications based on the language you're using.
The App Engine standard environment
Language support
The App Engine standard environment currently supports Python, Java, Go, PHP, and Node.js. The runtime for each of these languages includes core features and tools such as development servers, packaging and deployment support, scaling, task queues...
