[OpenStack-Infra] Gearman-plugin for Jenkins: support for dockerized executors

Zaro zaro0508 at gmail.com
Mon Jul 25 16:45:21 UTC 2016


Jenkins still doesn to provide the ability to listen for executor
changes.  It only allows listening to slave node changes with the
ComputerListener[1] extension point.  It doesn't seem like there's any
plans in Jenkins core to provide this in future releases.  If that's
not available then gearman cannot provide the functionality that you
request.

[1] https://wiki.jenkins-ci.org/display/JENKINS/Extension+points#Extensionpoints-hudson.slaves.ComputerListener

-Khai

On Mon, Jul 25, 2016 at 5:49 AM, Foerster, Thomas (Nokia - DE/Munich)
<thomas.foerster at nokia.com> wrote:
> Hi,
>
> We are using the Gearman-plugin (version: 0.2.0) at our Nokia’s Continuous
> Integration environment together with Jenkins (version: 2.7.1). Except the
> Gerrit server, the entire CI environment is dockerized: Zuul servers,
> Jenkins Master instances and build executers being able to scale according
> the demand. The Gearman is being used to handle multiple Jenkins Master and
> build executers across the project.
>
> We would like to start docker machines as build executors on demand and
> according the real CI load. However there seems to be a limitation at the
> Gearman-plugin (0.2.0), that all available build executors have to be know
> and running during plugin start-up time. Docker machines started and
> integrated to Jenkins after plugin start, won’t be recognized by the plugin.
>
> We found that is a known issue and documented at:
> https://wiki.jenkins-ci.org/display/JENKINS/Gearman+Plugin
>
> === CLIP ===
> Known Issues
> Adding or removing executors on nodes will require restarting the gearman
> plugin.  This is because Jenkins does NOT provide provide a way to listen
> for changes to executors therefore the gearman plugin does not know that it
> needs to re-register functions due to executor updates.
> === CLIP ===
>
> The Gearman-plugin seems to be still maintained.
> Do you know whether that issue has been taken up for next upcoming plugin
> release?
>
> Thanks in advance for your support.
>
> Best regards.
> -----------------------------------------------
> Thomas Förster
> Manager R&D, A&A Network Management & SON BU
> NOKIA
>
> Werinherstr. 91
> D-81541 Munich
> Germany
> Building 5541, Room 3056
>
> Mob:  +49 173-25 57 169
> Soft: 8045691
>
> mailto:thomas.foerster at nokia.com
> ------------------------------------------------
>
> Nokia Solutions and Networks Deutschland GmbH
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>
>
>
>
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