OpenStack VM creation driver

Originally for Mellanox. 

This is working demo that creates VMs using the OpenStack REST APIs. The OpenStack resource driver is the main part and could be extended. It is meant to be reusable.

• Creates a VM from an image
• Attaches a new secondary volume
• Associates a floating IP, allocating it first if needed

Extensive debug logging in %programdata%\QualiSystems\qs_rest_json_log.txt. You can freely call Log at any time to write a message to this file. 

All functions are wrappers around a single function, Query. There is no special order in which functions need to be called, and no initialization.

Auth is done behind the scenes and the token is managed automatically. This also automatically determines the tenant id. This mechanism needs to be slightly enhanced to handle the fact that the token can expire. If you get an error about an expired token, just restart Driver Builder or restart the TestShell server, whatever will reset the project variables. 

In your own added functions you will probably call Query. Query gets the service IP and port from the resource and substitutes the tenant id wherever <tenant> occurs in the URL. You need to provide only the HTTP method, the part of the URL after http://host:port, and the JSON body if any. If you get a mysterious error, be sure to check the HTTP method (especially PUT vs. POST). 

Setup:

Import models.xml

Build linux_pc driver, register it as "linux_pc", associate it with family Virtual Machine, model OpenStack VM.

Build the "openstack" driver, register it as "openstack_installation", associate it with family "OpenStack Installation", model "OpenStack Installation v2".

To add features to this driver, you will probably want to call the Query function in new ways. It takes JSON input and returns XML output. 

Create a resource named "OpenStack":

• Family: OpenStack Installation
• Model: OpenStack Installation v2
• Driver: openstack_installation
• Be sure to set these attributes under Configuration:

• http or https
• Tenant name
• OpenStack username
• OpenStack password
• Service IPs

• For now we only need these:
• Block Storage Service Address
• Compute Service Address
• Identity Service Address
• Image Service Address
• Networking Service Address

Build the topology driver "Mellanox Deploy VM and FIO Topo" and register it.

Create a topology containing the "OpenStack" resource and set the topology driver.