App Engine

1. Overview

  • App Engine does not provide access to local storage.
  • App Engine enables access to remote storage via APIs.
  • App Engine applications can make calls to other Google Cloud services.
  • App Engine provides a number of built in functions such as task queues.
  • App Engine applications can utilize external cloud storage as well as cloud memcache.
  • Services are modular abstraction in App Engine.
  • More than one App Engine service can be deployed into a project.
  • App Engine applications can be implemented in multiple services.
  • Multiple projects can be used to isolate App Engine services.
  • Each App Engine service can have multiple versions deployed simultaneously.
  • More than one App Engine service can be deployed into a project.
  • App Engine code can be isolated based on versions, services and projects.
  • App Engine services in a single project share some resources such as datastore, memcache, and task queues.
  • App Engine services in separate projects are completely isolated.
  • Different App Engine IAM roles can be assigned at the project, but not the service level.
  • App Engine services in the same project are isolated in some ways, and share certain resources.
  • Code in an App Engine service cannot directly invoke code in another service.
  • Each App Engine service can be written in a different language.
  • App Engine services can be auto scaled and load balanced independently.
  • App Engine platform manages the hardware and networking infrastructure required to run code.
  • To deploy an application on App Engine, code is uploaded to App Engine service.
  • App Engine provides built-in services that many web applications need.
  • Developers code their applications to take advantage of the services App Engine provides.
  • App Engine scales applications automatically based on incoming traffic.
  • App Engine users only pay for the resources used by their applications.
  • With App Engine, there are no servers to provision or maintain.
  • App Engine is especially suited for applications where the workload is highly variable or unpredictable like web applications and mobile backend.
  • App Engine manages Compute Engine machines, checking the health of instances and healing as necessary.
  • App Engine enables users can select a geographical region for their applications.
  • With App Engine, critical backward compatible updates to operating systems are automatically applied.
  • App Engine flexible environment applications have access to App Engine services such as data store, memcached, task queues.
  • App Engine supports application development in several languages.
  • App Engine runtimes include libraries that support App Engine APIs.
  • App Engine Standard is a software construct that is independent of the underlying hardware, operating system, or physical location of servers.
  • App Engine SDK is used to develop and deploy App Engine applications from a local environment.
  • Multiple App Engine applications can runs in a GCP project.
  • App Engine automatically provisions server instances, scales and load balances them.
  • App Engine applications can make calls to a variety of services using dedicated APIs.
  • App Engine users develop applications and run test versions locally using the App Engine SDK.
  • Abstracts the underlying infrastructure in favor of developer friendliness.
  • Runs Docker containers in virtual machines under the hood, while providing convenient models of deployment and management.
  • Simplified the process of deploying code into a production scale environment.
  • App Engine takes care of capturing logs, scaling, versioned upgrades, and traffic splitting.