fcc68b8fd6
We currently use the hostname of the builder host as the identifier for the owner of built images. This value is recorded in ZooKeeper and is used to make sure that only the owner of an image build ever deletes the entry from ZooKeeper. Using hostname can be problematic if it ever changes. It will cause orphaned builds that will not get deleted. This change allows us to use a UUID as the identifier, deprecating use of hostname altogether (although we continue storing that info). The UUID will be stored in a file in the images directory so that it may persist across nodepool-builder restarts. In order to help with transitioning existing builders to using UUID instead of hostname, the code will always compare the UUID value AND the hostname so that existing ZK entries will be matched until they age away. Change-Id: Ifafbab9fb0f41564cc1af595586fa7353ce1d0d0
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
Make sure you have pip installed:
wget https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.pyInstall dependencies:
sudo pip install bindep
sudo apt-get install $(bindep -b nodepool)
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 XXXXXCreate 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.
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
nodepool-launcher -d -c tools/fake.yamlAll logging ends up in stdout.
Use the following tool to check on progress:
nodepool image-list