Virtual machines (Cloud)

Overview

The Sage FRP 1000 for Cloud solution uses virtual machine (VM) to execute Sage FRP 1000 Services.

In the Cloud model implemented on this solution, a VM execute one and only one Sage FRP 1000 Service.

As general principles, a VM used in the Sage FRP 1000 Solution :

• Is agnostic.
• Has no user access.
• Is volatile.

Sage FRP 1000 start up process

In a stand alone configuration, a Sage FRP 1000 Service load its configuration from a local file. This start up process has several cons which prevent to use it a Cloud environment :

• The configuration file must be provide on the local disk, this don't met the agnostic requirement
• The configuration contents sensitive information which may leaks if the VM is compromise.

For these reasons, the start up process in a Cloud environment has been replaced by a configuration sequence where the Sage FRP 1000 Service contacts the configuration server (PDA) to obtain its configuration file. As the PDA maintains a list of the existing VM with theire associat role it can provide the adequate configuration file.

This approach has several benefices :

• The VM is agnostic.
• The loading sequence is secure.
• The VM has no sensitive information stored in its local storage
• The configuration may be updated with a centralized approach.