Platform SIG May 20, 2025

[poddingue (Bruno Verachten)]

2025 05 20 Jenkins Platform SIG

Attending:

• Giovanni Vaccarino
• Kenneth Salerno
• Kevin Martens
• Birajit
• Mark Waite
• Bruno Verachten
• Damien Duportal

Agenda

• Proposal: switch default containers (“latest” tags) to use Java 21
  • Java 17 end of life warning is displayed to administrators since 31 Mar 2025
    • Java 17 is end of life for Jenkins 31 Mar 2026
    • jenkins/jenkins:latest has a warning that Java 17 support by Jenkins ends in 2026
    • Need a help desk issue to track as a sub-issue of larger Java 21 transition
  • Needs changes in
    • Controller image - GitHub - jenkinsci/docker: Docker official jenkins repo - PR-2008 - merged
    • SSH agent image - GitHub - jenkinsci/docker-ssh-agent: Docker image for Jenkins agents connected over SSH
    • Inbound agent image - GitHub - jenkinsci/docker-agent: Jenkins agent (base image) and inbound agent Docker images
  • Stats are updated again: Jenkins Statistics (see JVM on the hamburger menu to see Java 21 progression)
• Java 25
  • Temurin supplies JDK 25 early access binaries
  • The infra team is busy with other tasks which are more urgent
    • The task exists in the helpdesk nonetheless, currently in triage
  • We are trying to compile the top 250 plugins with JDK25
    • Results there: Jenkins PR Tracker
    • Mark has a command line that could help get rid of the static analysis and other utilities while building the plugin
      • 10 out of 20 plugins compile for Mark, which is quite an achievement
• Container image updates for the Jenkins controller
  • LTS
    • 2.504.1 was released three weeks ago
      • 2.504.2 release candidate has been published on 14th May 2025
      • 2.504.2 release on 28th May 2025, next Wednesday
    • Kris Stern is the release lead
  • Weeklies (2.510 and 2.511)
    • Nothing new, except the Jenkins versions themselves
• Container image updates for Jenkins agents
  • One new release for the SSH agent (6.16.0)
    • New features and improvements
      • Patch to support auditd loginuid immutability by Kenneth
  • One new release for the docker-agent (3309.v27b_9314fd1a_4-2)
    • Maintenance
      • Run updatecli once a day
    • Dependency updates
      • Bump UBI9 version to 9.6-1745489786
• Work in progress on images:
  • Controller:
    • None, only a few automated PRs are waiting for approval, and tests are failing
      • Someone needs to have a look at those errors, nothing to do with the updates
      • Do we have any volunteer to have a look at it, to reproduce it locally?
  • Docker-agent:
    • chore: add a Windows test on long path with git
    • feat: Add support on Linux for JDK 25 in Docker build configurations
      • Windows tests failing, even if I haven’t touched Windows Dockerfiles.
  • Docker-ssh-agent:
    • None
• Android
  • Went to the end of configuring a Jenkins controller and agent on an Android machine, building the Maven tutorial repo
  • Blog post finished, needs to be posted for review

[mawinter69 (Markus Winter)]

The statistics for plugins also show numbers for May already but the numbers look strange. As if the total number of Jenkins instances dropped from ~260k to ~200k. Do we have here incomplete numbers?

[MarkEWaite (Mark Waite)]

@mawinter69

Do we have here incomplete numbers?

Yes. The May results were for a partial month. That will be fixed when the results are updated in June.

More details are available at:

Infra stats missing since October 2024 data for stats.jenkins.io Plugin Installation Trend feature

[poddingue (Bruno Verachten)]

Thanks, Mark, that makes sense now!