Devstack running joys !!!

I have been using devstack for understanding how openstack components work.

1) it works awesome ..instead of invidual installations you have everything installed for you
2) screens lets you see what is going on  in real time

GNU Screen provides the same functions as the DEC VT100 terminal, plus other aggregates. If you have no experience with this terminal, make sure to write down the following shortcuts.

Attach to a screen	screen -r stack
Switch screens	ctrl+a <screen no.> (e.g. ctrl+a 1)
Scroll in a screen	ctrl+a esc and up/down arrows to scroll
List screens	ctrl+a " and select the screen with up/down arrows
Next screen	ctrl+a n
Detach from the screen	ctrl+a d

3) you can edit any code on /opt/stack 

    i just print whatever i am investigating ..and its super easy to debug that ways 

4) any command you want to test just run help!   ex nova help

    if you are looking for a specific command but do not have the complete syntax or want to see all related commands  try this :- 

 for ex i want all metadata related command in nova 

nova help|grep metadata 

njain@njain3:/opt/stack/python-novaclient$ nova help|grep metadata

    aggregate-set-metadata

                        Update the metadata associated with the aggregate.

    image-meta          Set or Delete metadata on an image.

    meta                Set or Delete metadata on a server.

    host-meta           Set or Delete metadata on all instances of a host.

5) want to contribute check out 

https://wiki.openstack.org/wiki/How_To_Contribute 

6) I will soon get a bug from launchpad and try to contribute as a developer!!