Accelerated end of life for Red Hat Enterprise Linux 7, CentOS 7, etc.

[Mark Waite]

The platform SIG and the documentation SIG have been discussing a possible early end of life for Red Hat Enterprise Linux 7 support by the Jenkins project.

RHEL 7 and its derivatives will be unsupported beginning June 30, 2024 because that is when the operating system provider stops supporting it.  I've captured the reasons that I believe we should officially declare an end of support even earlier in https://github.com/jenkinsci/jenkins/pull/7913

I'm willing to open a Jenkins Enhancement Proposal for further discussion if necessary, but would like to hear feedback or concerns in the pull request comments before I spend the extra effort to write a JEP.

Mark Waite

[Mark Waite]

https://github.com/jenkinsci/jenkins/pull/7913 is ready for review.  It proposes to declare the end of support for Red Hat Enterprise Linux 7, CentOS 7, Oracle Linux 7, Scientific Linux 7, and other derivatives in the Jenkins project as November 15, 2023.  That is 24 weeks after the release of Jenkins 2.401.1.  Assuming we continue the release cadence for 4 weeks per LTS release, that will be the first release of the 2.42x.1 baseline, having been preceded by the 2.41x.1 baseline and the 2.401.x release series.

Changes will be needed in our Docker containers to warn users of the `centos7` container images that they will no longer be updated.  I'll plan to lead those changes along with other changes as part of the end of support for RHEL 7 and its derivatives.

Mark Waite

[Mark Waite]

Jenkins 2.407 will be the first weekly release to warn users about operating system end of life.  Warnings will be displayed immediately for:

* Alpine Linux 3.14

* CentOS Linux 7

* Oracle Linux 7

* Red Hat Enterprise Linux 7

* Scientific Linux 7

* Ubuntu Linux 18.04

The next LTS baseline (after 2.401.x) will include the warning.

Mark Waite

[Gavin Mogan]

I can't wait for the forum posts "Jenkins says my OS is bad, how do i fix?"

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[Verachten Bruno]

I'd be happy to redirect people to Mark's blog post.

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Bruno Verachten

[Mark Waite]

On Monday, May 29, 2023 at 7:24:53 AM UTC-6 Bruno Verachten wrote:

I'd be happy to redirect people to Mark's blog post.

Thanks.  Blog post pull request is https://github.com/jenkins-infra/jenkins.io/pull/6412

Preview of the blog post can be reviewed at 

https://deploy-preview-6412--jenkins-io-site-pr.netlify.app/blog/2023/05/30/operating-system-end-of-life/

Mark Waite