AKS publick8s version update

accounts.jenkins.io beta.accounts.jenkins.io customize.jenkins.io get.jenkins.io incrementals.jenkins.io infra.ci.jenkins.io javadoc.jenkins.io jenkins-wiki-exporter.jenkins.io ldap.jenkins.io plugins.jenkins.io release.ci.jenkins.io reports.jenkins.io www.jenkins.io uplink.jenkins.io

INFRA-3118 Notes

[Final Message] The upgrade is finished without any incident, all services are up and running.

Cat tax:

[Initial Message] We’ll do an AKS and EKS clusters upgrade from 1.19 to 1.20 this Thursday, 25th of November 2021, starting at 08:00 UTC.

The service ldap.jenkins.io service might have a downtime due to its PV.

Other services might have a downtime too if their probes take more than one second to respond due to the new timeoutPeriod enforced default value.
Note: the official Jenkins helm chart we’re using has already set the default timeout period to 5 seconds

Apart from that, no outage is expected, but there could be an impact (1-2 min outage) on the following services if there is an unexpected upgrade issue:

• accounts.jenkins.io
• beta.accounts.jenkins.io
• customize.jenkins.io
• get.jenkins.io
• incrementals.jenkins.io
• infra.ci.jenkins.io
• javadoc.jenkins.io
• jenkins-wiki-exporter.jenkins.io
• ldap.jenkins.io
• plugins.jenkins.io
• release.ci.jenkins.io
• reports.jenkins.io
• www.jenkins.io
• uplink.jenkins.io