Manage a pool of nodes for a distributed test infrastructure

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James E. Blair 09efd8469b Fix image-delete command On manual image delete requests for an image build that is current, we need to actually delete the upload from the provider, then remove the ZK record. To do so, we have to call _deleteUpload() directly. Rather than go through the manipulations to pass that method the parameters it needed (e.g., a provider object), turns out that the upload object has all of the information that _deleteUpload() actually needs, so clean that up here. Also fixes the test_image_delete test to meet expectations. Co-Authored-By: David Shrewsbury <shrewsbury.dave@gmail.com> Change-Id: Ib0e4f0f194504b1b430078102e5b8d80b6a015fb Story: 2000812 Task: 3397		2016-12-06 15:36:33 -05:00
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README.rst

Nodepool

Nodepool is a service used by the OpenStack CI team to deploy and manage a pool of devstack images on a cloud server for use in OpenStack project testing.

Developer setup

Install dependencies:

sudo apt-get update
sudo apt-get -qy install git mysql-server libmysqlclient-dev g++\
                 python-dev python-pip libffi-dev libssl-dev qemu-utils\
                 libxml2-dev libxslt1-dev python-lxml
mkdir src
cd ~/src
git clone git://git.openstack.org/openstack-infra/system-config
git clone git://git.openstack.org/openstack-infra/nodepool
cd nodepool
sudo pip install -U -r requirements.txt
sudo pip install -e .

If you're testing a specific patch that is already in gerrit, you will also want to install git-review and apply that patch while in the nodepool directory, ie:

git review -x XXXXX

Create or adapt a nodepool yaml file. You can adapt an infra/system-config one, or fake.yaml as desired. Note that fake.yaml's settings won't Just Work - consult ./modules/openstack_project/templates/nodepool/nodepool.yaml.erb in the infra/system-config tree to see a production config.

If the cloud being used has no default_floating_pool defined in nova.conf, you will need to define a pool name using the nodepool yaml file to use floating ips.

Set up database for interactive testing:

mysql -u root

mysql> create database nodepool;
mysql> GRANT ALL ON nodepool.* TO 'nodepool'@'localhost';
mysql> flush privileges;

Set up database for unit tests:

mysql -u root
mysql> grant all privileges on *.* to 'openstack_citest'@'localhost' identified by 'openstack_citest' with grant option;
mysql> flush privileges;
mysql> create database openstack_citest;

Note that the script tools/test-setup.sh can be used for the step above.

Export variable for your ssh key so you can log into the created instances:

export NODEPOOL_SSH_KEY=`cat ~/.ssh/id_rsa.pub | awk '{print $2}'`

Start nodepool with a demo config file (copy or edit fake.yaml to contain your data):

export STATSD_HOST=127.0.0.1
export STATSD_PORT=8125
nodepoold -d -c tools/fake.yaml

All logging ends up in stdout.

Use the following tool to check on progress:

nodepool image-list

After each run (the fake nova provider is only in-memory):

mysql> delete from snapshot_image; delete from node;