Python command line for Rest API

Generate auth.json before use the cli

./rest.py -g

modify auth_host in auth.json

If cli not enougth, you can modify example.json and use it as rest API input

./rest.py -f example.json

Please use -h for cli detail.

Still have bug and please ask me to fix it.

To get metadata address of VM

./rest.py -i hostip1 hostip2 ...