Manage a pool of nodes for a distributed test infrastructure
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Paul Belanger aebd030a32
Retry SSHExceptions in nodepool
Today, when SSHExceptions are raise, nodepool will abort communication
with the node. Now, nodepool will properly trap them and try again
until the SSH timeout has been raised.

This help with potential race conditions with openssh-server and
nodepool, where nodes would restart sshd after nodepool has
established a connection.

Change-Id: I40bfa1b1af6e4e75f8f14c597c28407ed08023de
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
2016-10-05 12:11:47 -04:00
devstack Pull get-pip.py from jenkins cache 2016-09-30 00:50:21 +00:00
doc Add config support for ZooKeeper servers 2016-08-05 17:34:55 +00:00
nodepool Retry SSHExceptions in nodepool 2016-10-05 12:11:47 -04:00
tools Also use the virtualenv for checking 2016-08-27 08:01:07 -05:00
.gitignore Ignore vim editor backup and swap files. 2014-01-20 13:23:04 +13:00
.gitreview Added .gitreview 2013-08-13 17:10:06 +00:00
.testr.conf Add a test for subnodes 2014-03-31 09:22:00 -07:00
LICENSE Add LICENSE file 2015-12-10 12:54:23 -05:00
README.rst Nodepool Install failure 2015-10-29 10:44:41 +05:30
requirements.txt Update shade depend to 1.12.0 2016-09-06 14:04:04 -05:00
setup.cfg Builders can be run on their own 2016-01-12 15:33:01 -08:00
setup.py Bump pbr requirements to >=1.3 2015-09-14 16:19:13 -04:00
test-requirements.txt Remove testresources 2016-08-15 10:27:07 -07:00
tox.ini Allow testing with external zookeeper 2016-07-07 16:32:06 -04:00

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;

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;