PUBLIC MARKS with tag CloudComputing

Amazon Relational Database Service (Amazon RDS) is a web service that makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while managing time-consuming database administration tasks, freeing you up to focus on your applications and business.

It is simple. Let's say you have GitHub repo containing static web site and you want to host it on App Engine. DryDrop is an application ready to be uploaded as your App Engine project. When you upload it first time, you should setup post-receive hook in your GitHub repo to point to your App Engine project, so every change you push to GitHub can be reflected on your App Engine site immediately.

Let's say someone visits your App Engine site. DryDrop has a simple cache. If requested page is not in the cache, DryDrop will try to fetch it from GitHub, store it in the cache and then serve it. Next time the same URL is requested, it will be served directly from DryDrop cache.

Let's say you did some changes to your files. In the moment you push file changes into GitHub, post-receive hook will ping DryDrop and that invalidates modified files in the cache. Next request will trigger downloading of fresh files from GitHub.

Eucalyptus - Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems - is an open-source software infrastructure for implementing "cloud computing" on clusters. The current interface to Eucalyptus is compatible with Amazon's EC2, S3, and EBS interfaces, but the infrastructure is designed to support multiple client-side interfaces. Eucalyptus is implemented using commonly available Linux tools and basic Web-service technologies making it easy to install and maintain.

Eucalyptus is an API-compatible open-source clone of the Amazon AWS

NEBULA is a Cloud Computing environment developed at NASA Ames Research Center, integrating a set of open-source components into a seamless, self-service platform. It provides high-capacity computing, storage and network connectivity, and uses a virtualized, scalable approach to achieve cost and energy efficiencies.

The fully-integrated nature of the NEBULA components provides for extremely rapid development of policy-compliant and secure web applications, fosters and encourages code reuse, and improves the coherence and cohesiveness of NASA's collaborative web applications. It is used for Education and Public Outreach, for collaboration and public input, and also for mission support.

Built from the ground up around principles of transparency and public collaboration, NEBULA is also an open-source project. NEBULA is built on the NEBULA platform.

libcloud is a standard client library for many popular cloud providers, written in python