c119168ff2
The gitlab driver uses requests to interact with gitlab's API. By default, requests uses a connection pool to cache and re-use HTTP connections. If the gitlab server is across a network segment with, say, a poor NAT implementation which silently drops idle connections from its map, then Zuul may not notice until it attempts to make a request on one of these connections and receives a read timeout. To avoid this, use TCP keepalives on these HTTP requests by default. This is configured to send a keepalive packet by default every 60 seconds. This should avoid sending too much extra traffic, while improving the reliability for all users. The default of 60 seconds was chosen to match the SSH keepalive value we set for gerrit connections (for much the same reason). If this works well, we can use this approach with other requests-based drivers (and at this point, every driver uses requests to at least some degree). Change-Id: I86ce064c6ec9325e2ae9db516778058050696ef6
Zuul
Zuul is a project gating system.
The latest documentation for Zuul v3 is published at: https://zuul-ci.org/docs/zuul/
If you are looking for the Edge routing service named Zuul that is related to Netflix, it can be found here: https://github.com/Netflix/zuul
If you are looking for the Javascript testing tool named Zuul, it can be found here: https://github.com/defunctzombie/zuul
Getting Help
There are two Zuul-related mailing lists:
- zuul-announce
-
A low-traffic announcement-only list to which every Zuul operator or power-user should subscribe.
- zuul-discuss
-
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.
Contributing
To browse the latest code, see: https://opendev.org/zuul/zuul To clone the latest code, use git clone https://opendev.org/zuul/zuul
Bugs are handled at: https://storyboard.openstack.org/#!/project/zuul/zuul
Suspected security vulnerabilities are most appreciated if first reported privately following any of the supported mechanisms described at https://zuul-ci.org/docs/zuul/user/vulnerabilities.html
Code reviews are handled by gerrit at https://review.opendev.org
After creating a Gerrit account, use git review to submit patches. Example:
# Do your commits
$ git review
# Enter your username if promptedJoin #zuul on Freenode to discuss development or usage.
License
Zuul is free software. Most of Zuul is licensed under the Apache License, version 2.0. Some parts of Zuul are licensed under the General Public License, version 3.0. Please see the license headers at the tops of individual source files.
Python Version Support
Zuul requires Python 3. It does not support Python 2.
Since Zuul uses Ansible to drive CI jobs, Zuul can run tests anywhere Ansible can, including Python 2 environments.