A Cloud Testing Stack

What is the Cloud?

The "cloud" refers to remote systems available over the network. Advantages of cloud services include: on demand, scaling (vertically and horizontally), virtualization, standardization of platform and infrastructure, outsourcing of data center, hardware, and network management. Because of network abstraction and virtualization, when you work in the cloud, architectural changes may be called for (think "service oriented") and you may have options not available previously (think "horizontal scalability"). There are also security concerns with the cloud. Cloud services are available at multiple levels: Infrastructure, Platform, and Software "as as Service".

Infrastructure as a Service (IaaS)

Infrastructure includes computing resources, storage, network, and base operating Cloud Infrastructure providers.

• Amazon Web Services
• Rackspace Cloud
• HP Cloud
• Microsoft Azure
• Linode

Open source implementations

• Open Stack
• Eucalyptus

Public or private cloud. Or a combination of public and private infrastructure. VPN to internal network.

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