provy is a provisioning service in python.
For an example script check the test provyfile.py.
To run the provyfile script in the command-line you use::
provy -s prod # provisions all prod servers
provy -s prod.frontends # provision all front-end servers in prod
provy -s prod.frontends.server1 # provision only server1
This command will provision all the webservers described under webservers (-s) with the webserver role (-r).