Google App Engine
By Google Cloud
Google App Engine is Google Cloud's original platform-as-a-service offering for building and deploying web applications and APIs, with automatic scaling and infrastructure management, available in a fully managed Standard environment and a…
Definition
Google App Engine is Google Cloud's original platform-as-a-service offering for building and deploying web applications and APIs, with automatic scaling and infrastructure management, available in a fully managed Standard environment and a more flexible Flexible environment.
Overview
Launched in 2008, App Engine was one of Google Cloud's earliest services and one of the first mainstream PaaS offerings in the industry, predating much of the rest of the current GCP product catalog. Developers deploy application code, and App Engine handles provisioning, scaling, and load balancing automatically, aiming to let teams focus purely on application logic rather than infrastructure. App Engine offers two distinct environments. The Standard environment runs applications in a sandboxed, language-specific runtime (supporting languages like Python, Java, Node.js, Go, and PHP) with very fast scaling, including scaling to zero, but with some restrictions on what the application can do (such as limited access to the underlying filesystem). The Flexible environment instead runs applications inside Docker containers on managed Compute Engine virtual machines, offering more flexibility and fewer restrictions at the cost of slower scaling and higher baseline cost than Standard. As Google's serverless offerings have expanded, newer services like Google Cloud Run and Google Cloud Functions have become common alternatives for many use cases App Engine originally served, but App Engine remains in active use, particularly for existing applications built around its Standard environment's request-handling and scaling model.
Key Features
- One of the earliest platform-as-a-service offerings in the cloud industry
- Standard environment with fast, sandboxed, scale-to-zero execution
- Flexible environment running Docker containers on managed VMs
- Automatic scaling and load balancing built in
- Support for Python, Java, Node.js, Go, PHP, and other languages
- Built-in versioning and traffic-splitting between application versions
- Integrated with Google Cloud's datastore, task queues, and memcache
- No server management required in the Standard environment