Not exactly, it doesn't have the same goal at all.
From the first line of the script: "stack.sh is an opinionated OpenStack developer installation". It doesn't provide nearly the flexibility of Puppet (or Chef).
Devstack does one thing, and one thing (almost) only: get a simple installation of OpenStack up and running as fast as possible (predominantly for developers to test their modifications against).
Puppet can handle much more complex scenarios, and is really meant to deploy production.
From the first line of the script: "stack.sh is an opinionated OpenStack developer installation". It doesn't provide nearly the flexibility of Puppet (or Chef).
Devstack does one thing, and one thing (almost) only: get a simple installation of OpenStack up and running as fast as possible (predominantly for developers to test their modifications against).
Puppet can handle much more complex scenarios, and is really meant to deploy production.