Sense, and Simplicity

OpenStack Tempest quick start with DevStack

UPDATE(April 2014): Now when you set up DevStack, Tempest is automatically set up for you.

This quick start guide explains setting up Tempest with a DevStack environment for Grizzly release. Most of the information here is taken from here, the only difference being this blog post is more recent, and is based on Grizzly.

Assumptions made are that you understand: 1. What is a localrc file in DevStack. 2. What does ./stack.sh do in DevStack. 3. How to clone using git.

Setting up DevStack

Clone DevStack

git clone https://github.com/openstack-dev/devstack.git
cd devstack

Tempest requires that the rate-limiting for DevStack is turned off. By default, it is turned on, so turn it off by adding this line to the localrc file.

API_RATE_LIMIT=False

If you have already created a DevStack environment, you will have to go through the labour of setting it all again by unstacking and restacking it with this parameter in localrc. Quick tip: If you already had a working DevStack in your computer, adding OFFLINE=True line in localrc will create the DevStack environment in your computer WITHOUT downloading all the OpenStack code all over again from the Github repos, but will build the environment from the existing code (thus saving you some Internet bandwidth and time).

Build the DevStack environment

./stack.sh

Supply all the five passwords. (If you are just playing around, just like me, then you can easily supply nova to all the passwords.)

Note the IP of the system where DevStack is running (The 'host IP' mentioned at the last of the output after running stack.sh).

Setting up Tempest

Clone latest Tempest code

git clone https://github.com/openstack/tempest.git
cd tempest

Create tempest.conf file from the sample configuration file. This file will contain the configuration information of the OpenStack environment (here, the DevStack environment)

cp etc/tempest.conf.sample etc/tempest.conf

Now open the file tempest.conf in an editor, and replace all instance of word secret with the appropriate password (nova if you followed me, and just typed nova whenever the stack.sh script asked for passwords)

If, for example, your host IP is 10.0.24.30, change this line in tempest.conf

uri = http://127.0.0.1:5000/v2.0/

to make it

uri = http://10.0.24.30:5000/v2.0/

The last thing to update in the tempest.conf file is the ID of the Cirros image. The image ID can be obtained by two ways

Image ID using glance

This command will return the image ID. Note that I have used the password nova in this line. You might also need to change the host IP address

glance -I admin -K nova -T admin -N http://10.0.24.30:5000/v2.0 -S keystone index | grep ami | cut -f1 | awk '{print $1}'

Image ID using OpenStack CLI

Become stack user

su - stack

Source the sample credentials file

. /opt/stack/devstack/eucarc

OR

. /opt/stack/devstack/openrc

Show all the images, with their IDs

$ nova image-list
+--------------------------------------+---------------------------------+--------+--------+
| ID                                   | Name                            | Status | Server |
+--------------------------------------+---------------------------------+--------+--------+
| 13abf9c8-5603-48cb-802e-e27162e10b58 | cirros-0.3.0-x86_64-uec         | ACTIVE |        |
| 39b023ae-9201-427d-8350-4f30e5bbc01a | cirros-0.3.0-x86_64-uec-kernel  | ACTIVE |        |
| 431a9c04-47b1-47e4-9521-7f12295c78e0 | cirros-0.3.0-x86_64-uec-ramdisk | ACTIVE |        |
+--------------------------------------+---------------------------------+--------+--------+

The ID of the smallest image name is what we're interested in.

Now replace {$IMAGE_ID} and {$IMAGE_ID_ALT} with this value, to make those two lines appear in tempest.conf as

image_ref = 13abf9c8-5603-48cb-802e-e27162e10b58
image_ref_alt = 13abf9c8-5603-48cb-802e-e27162e10b58

Installing required dependencies

Install all the required packages needed to run Tempest integration test suite. (The list of required packages is maintained in file tools/pip-requires)

$ sudo pip install -r tools/pip-requires

Show time!

We'll run all the tests in verbose mode. To run all the tests:

nosetests -v tempest

To run tests only from a specific file, say tempest/tests/volume/test_volumes_list.py:

nosetests -sv tempest.tests.volume.test_volumes_list

OR

nosetests -sv tempest.tests.volume.test_volumes_list.py

To run a specific test test_volume_list_with_details from test class VolumeListTest, which resides in the above file:

    nosetests -sv tempest.tests.volume.test_volumes_list:VolumeListTest.test_volume_list_with_details

And that ladies and gentlemen, is the end! :)

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