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What is AppScale?

AppScale is an open-source cloud computing platform that automatically deploys and scales unmodified Google App Engine applications over public and private cloud systems and on-premise clusters. AppScale is modeled on the App Engine APIs and has support for Python, Go, PHP and Java applications.

It executes automatically over public clouds such as Google Compute Engine, Microsoft Azure, Amazon EC2, Alibaba Cloud, IBM SoftLayer, Rackspace, DigitalOcean, OpenStack, CloudStack, Eucalyptus, as well as KVM, Xen, VirtualBox, and VMWare.

AppScale is developed and maintained by AppScale Systems, Inc., based in Santa Barbara, California, and Google.

Running AppScale

• Running AppScale
• Managing Apps, Machines, and Logs
• Managing Users
• Automated Data Persistence
• Multinode Deployments
• Migration into AppScale, Backup & Recovery
• Remote Shell (view your app data)
• Troubleshooting
• FAQs

Datastore Topics

• Adding Support for a New Database
• How AppScale implements Transaction support
• The Life of a Datastore Write
• Emulating Megastore
• Composite Queries

Making AppScale Scale

• Adding Machines to an AppScale Deployment
• Autoscaling Application Servers
• Autoscaling Triggers
• Performance Tuning

Advanced Topics

• Using Spot Instances in EC2
• How AppScale implements the Google App Engine APIs
• Logging in AppScale
• The Channel API in AppScale
• Monit in AppScale
• TaskQueue API in AppScale
• Search API in AppScale
• Memcache API

Learn about AppScale Core Components

• AppController
• InfrastructureManager
• UserAppServer
• DatastoreServer
• AppDB
• AppTaskQueue
• AppManager
• SearchServer

Other

• How to Contribute
• References on AppScale

Check us Out

• Commercial Page
• Community Page
• Community Google Group
• IRC (#appscale on freenode.net)
• YouTube