Our Jenkins is installed on Centos server. As Centos has announced End of life by 30 June 2024. We are planning to migrate our application to Redhat 8. We are also planning to upgrate our application from Jenkins Version 2.370 to latest one. Can someone please help me with the process/steps installer repo/github details and and pre and post step required on this.
I regret to inform you that you will need to handle this migration independently. Your optimal approach would be to initiate a clean installation of Jenkins on Red Hat 8. Afterward, install all the required plugins and, finally, copy and paste your existing jobs.
@mwp565733 recently authored a blog post detailing the process of upgrading an existing, but aging, Jenkins controller. You might find it helpful.