Manage a pool of nodes for a distributed test infrastructure
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Simon Westphahl 0a858c4be8
Double check node allocation in a few more places
Since we operate a lot on cached data we need to make sure that the
state of the node did not check after we've locked it.

This change mainly focuses on checking the `allocated_to` field where

Change-Id: I7eb51464f5de88a973ee39e25b57ec9ff2d851da
4 days ago
contrib/statsd_exporter Add statsd_exporter mapping 4 years ago
doc Merge "Report leaked resource metrics in statemachine driver" 4 weeks ago
etc Merge "Add systemd drop-in file for CentOS 7" 5 years ago
nodepool Double check node allocation in a few more places 4 days ago
playbooks Switch to nox 5 months ago
releasenotes/notes Merge "Add ZK 3.6.0 release note" 4 weeks ago
tools Output rate information in 3 months ago
.coveragerc Switch to stestr 5 years ago
.dockerignore Build images with Dockerfile instead of pbrx 4 years ago
.gitignore Require TLS 2 years ago
.gitreview OpenDev Migration Patch 4 years ago
.stestr.conf Switch to stestr 5 years ago
.zuul.yaml Publish container images to 1 month ago
Dockerfile Pull OpenDev images from 3 weeks ago
LICENSE license: remove dos line break 5 years ago
README.rst Update devstack settings and docs for opendev 4 years ago
TESTING.rst Update unit test container setup and instructions 10 months ago
bindep.txt Merge "Use libyaml parsing when available" 10 months ago Switch to nox 5 months ago
requirements.txt Update to DIB 3.27.0 2 months ago
setup.cfg Switch to nox 5 months ago Bump pbr requirements to >=1.3 8 years ago
test-requirements.txt AWS tests: cleanup image deletion checking 1 year ago
tox.ini Switch to nox 5 months ago



Nodepool is a system for managing test node resources. It supports launching single-use test nodes from cloud providers as well as managing access to pre-defined pre-existing nodes. Nodepool is part of a suite of tools that form a comprehensive test system, including Zuul.

The latest documentation for Nodepool is published at:

The latest documentation for Zuul is published at:

Getting Help

There are two Zuul-related mailing lists:


A low-traffic announcement-only list to which every Zuul operator or power-user should subscribe.


General discussion about Zuul, including questions about how to use it, and future development.

You will also find Zuul developers in the #zuul channel on Freenode IRC.


To browse the latest code, see: To clone the latest code, use git clone

Bugs are handled at:!/project/zuul/nodepool

Code reviews are handled by gerrit at

After creating a Gerrit account, use git review to submit patches. Example:

# Do your commits
$ git review
# Enter your username if prompted

Join #zuul on Freenode to discuss development or usage.


Nodepool is free software, licensed under the Apache License, version 2.0.

Python Version Support

Nodepool requires Python 3. It does not support Python 2.