Create server_upgrade.py

[midhlajvs]

Used to update the hypervisors using the server list and command list file.

[pkittenis]

Hi, thank you for contributing.

A couple points:

• The syntax and format of the two input files is not shown. Can some sample files be provided, or alternatively make the code take two lists for host and command list respectively and generate those from files.
• Is it intentional that each command is run sequentially?

Code comments in line.

[midhlajvs]

Hi,

I made the suggested changes on the code, hosts and commands are loaded from the file as a list. It is deliberate to run the commands sequentially.

[pkittenis]

Thanks, comments look great.

Can you review the in code comment about the print statement.

Getting syntax error on python 2 with the current code.

[pkittenis]

Moved to wiki