Platform SIG December 02, 2022

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Dec 2, 2022 WebContainers Support page

Attending:

Agenda:

  • Open action items:

    • Revisit the platform support containers => Damien, Mark, everyone?
    • Mark Waite to write a “support page” for web containers similar to windows and linux support pages
      • WildFly, Tomcat, Glassfish, …
      • Done by Basil Crow, visible on jenkins.io
    • Damien Duportal:
      • Check Docker image download statistics per platform/version
      • Check statistics for the archlinux Docker image to check if needed or not for agents. Only a few downloads compared to 10+ millions downloads for others. We’ll need to communicate on the future of this image. It only exists as a basic docker agent, even not in the form of the inbound-agent.
        Could we get more information from the Docker hub?
        We could announce the deprecation in a blog post
      • What about Centos 7? No support from June 2024.
      • Fix docker agents deployment issues (old tags rebuilt randomly overriding the latest tags) => done, fixed, finally, congratulations Damien!
      • Open issue for “merging” docker agent repositories into a single one
      • Some tags for inbound-agent still sport the “-preview” label for JDK17
    • Stephane Merle:
      • Open issue on jenkins-infra/helpdesk about adding JDK19 to ci.jenkins.io => almost done : add java19 support for developpers to pre-built and try · Issue #3243 · jenkins-infra/helpdesk · GitHub
      • Container image deprecation for the blueocean container (jenkinsci:blueocean)
        • Damien proposed in last meeting to update the image a very last time, with a 10 seconds sleep at the very beginning in the entrypoint, then a very informative message giving the status, and then another round of 10 seconds waiting
        • Need to announce the deprecation of the image
        • Update the page on Dockerhub
        • Add to a Jenkins LTS changelog or upgrade guide?
        • Add a disclaimer to one or more pages on www.jenkins.io?
        • Update the 2017 Blue Ocean blog post with deprecation notice?
        • content/blog/2017/01/2017-01-13-blueocean-dev-log-jan.adoc
      • Find a way to communicate the deprecation to users and admins
      • Jenkins administrative monitor that checks for specific container content?
      • Report it on it regularly in Platform SIG meetings
      • Create an issue that proposes the deprecation and the needed steps => who?
      • Not likely to make progress until end of December
      • Repository: blueocean-plugin/Dockerfile at 099bbff6a13ec7709a22049c7c4b0f99bc9ec83d · jenkinsci/blueocean-plugin · GitHub

  • Docker Images for Jenkins changes:

  • New platforms:

    • Experiments with Windows 2022: working with Jenkins Infrastructure to build these images

  • Container repository management for Jenkins agents

    • Progress to report - Damien Duportal progressing towards unifying repositories
    • Simplifying the release process
      • Multiple repositories and multiple images from those repositories
      • Releases are complicated unnecessarily
        • Adding arm64 for docker images was too complicated
    • Combining the repositories to simplify image management
      • Need more detailed plan and design
      • Cannot drop support for the existing containers
        • Retain the container structure, but remain compatible
    • Separate repository for Jenkins agents with tools installed
      • Not actively maintained, many of the containers are still using Java 8, won’t work with most recent LTS, they need to be upgraded
        • Download metrics are available from Dockerhub, could use those measure to prioritize the effort

  • Require Java 11 or newer for Jenkins core

    • Build toolchain changes arrived in parent pom 4.52
      • Jenkins 2.361.x is minimum version in order to use that parent pom
      • Java 11 for the win…
    • Jenkins 2.361.4 is now one of the recommended Jenkins minimum versions for plugin dependencies
      • Why a recommended minimum?
      • The story of WMI Windows Agents plugin and implied dependencies

  • Java 17 support in Jenkins

    • Jenkins infra plan to do it in December for their controllers, and try ci.jenkins.io in January 2023 if no objection
      • Should we delay that in favor of JFrog work?
      • No need to hurry that up

  • It’s been one year that the controller docker images are not up to date (both LTS and the other one) for Windows (we supply the 2.356 version).

    • One person volunteered to help with this issue
    • Should we propose to end this image?
    • We have to investigate. Is it valuable enough for the community to keep updating it?

  • Dec 30, 2022 meeting is canceled