CI-users January 2016

ci-users@lists.centos.org

12 participants
7 discussions

Strategy for scaling jenkins slaves ?
by David Moreau Simard 16 May '16

16 May '16

Hi, The RDO slave currently has 15 execution threads running on two cores and 4GB of RAM. As we use ci.centos more and more for gating and periodic jobs, I can see that the slave starts to struggle a little bit CPU-wise when the execution threads are busy. The bulk of the jobs are offloaded to an ephemeral bare metal node but ansible still runs from the slave. Some jobs do run locally, such as smaller tox jobs. What's the strategy if we want to scale this ? For example, do we want to scale in increments of "10 threads/2 cores/4 GB RAM" by adding more slaves as need be or do we want to grow the specifications of the existing slave and grow the amount of threads ? I have a personal preference to have more smaller slaves as this also has the added benefit of redundancy so we're not left entirely out in the cold if this one big slave happens to crash. David Moreau Simard Senior Software Engineer | Openstack RDO dmsimard = [irc, github, twitter]

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CI job Trigger and Feedback for Github
by Praveen Kumar 16 Feb '16

16 Feb '16

Hi, So currently we have provision to add our Github project to CentOS CI but it lack on feedback[0] like travis do. I searched available plugin to do that for Jenkins and looks like github[1] is promising. Can we enable it to CI or we have other plan to resolve it? [0] https://github.com/projectatomic/adb-atomic-developer-bundle/pulls (Small Green tick mark for PR) [1] https://wiki.jenkins-ci.org/display/JENKINS/GitHub+Plugin#GitHubPlugin-Plug… -- Praveen Kumar http://fedoraproject.org/wiki/User:Kumarpraveen http://fedoraproject.org/ http://kumar-pravin.blogspot.com

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Mirror images on artifacts.ci.centos.org
by John Trowbridge 02 Feb '16

02 Feb '16

Hello, I brought this up on IRC before the holidays, but it was suggested to bring it to this list. We have some images that get created during CI of RDO-Manager[1], and a project that lets people consume these images to get a fully operational deathst^w TripleO cloud using them.[2] I have had reports from users though that the download speed outside of the Red Hat RDU VPN is quite bad. Do we have anywhere we can mirror these images? [1] https://ci.centos.org/artifacts/rdo/images/ [2] https://github.com/redhat-openstack/tripleo-quickstart

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Disk space on ci nodes
by Dusty Mabe 30 Jan '16

30 Jan '16

Hi, Is it possible to get raw block device storage on nodes in the CI? Right now from what I can tell the nodes come up with LVM set up and no space free in the volume group. There is a root/home/swap LV and we can't really reclaim any space because xfs doesn't support shrinking the FS. Can we have some free space left in the VG? Is there some other way to get this to happen? Thanks, Dusty

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How do you transform the config.xml into a job builder yaml file?
by James 27 Jan '16

27 Jan '16

Has anyone done the work of automating the translation, or does anyone have a script? Here's a script to download the config.xml: https://github.com/purpleidea/oh-my-vagrant/blob/master/extras/get-xml-jenk… If someone has the translate part that would be pretty useful. Cheers, James

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Reaping at 12 hrs instead of 2 days
by Karanbir Singh 22 Jan '16

22 Jan '16

hi, In the coming days, we are going to start moving towards reaping orphaned machines every 12 hrs. At the moment, machines are reclaimed on the second date change ( ie. if you provisioned at 00:01 on anyday, you get 48 hrs before the machine is reclaimed, or if you provisioned at 23:59, you get 24 hrs ). Going forward, this will reduce to 12 hrs. Looking through the last month worth of reclaimed nodes, it looks like the longest running roles typically finish in under 2 hrs or thereabouts - so 12 hrs should still be plenty of head room. Machines that dont usually returned within 3 hrs + are the ones we almost exclusively end up reclaiming on the timeout. Therefore, this 12 hr timeout should not impact anyone / any jobs. Let me know if thats not the case. Regards -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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artifacts from inside and outside the ci infra
by Karanbir Singh 06 Jan '16

06 Jan '16

hi, what was the final decision around how best to export artifacts so they are visible on the same url as internally inside of ci ? regards, -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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CI-users January 2016