[publick8s cluster] Azure publick8s Upgrade to Kubernetes 1.34.7

[Final Message] –> upgrade went well, no impact on production.

[Initial Message] –> Wednesday 03 June 2026 at 09:30AM UTC, we’ll upgrade the AKS(Azure) cluster publick8s to Kubernetes 1.34.7. It should take between 60 and 120 min.

The expected impacts are:

Restart of the following services, with a downtime between 2 and 15 min (depends on Azure Storage systems):

• ldap.jenkins.io
• weekly.ci.jenkins.io
• incrementals.jenkins.io

Temporary disruptions (no Log-in/log-out possible during the LDAP restart) on:

• accounts.jenkins.io
• ci.jenkins.io, trusted.ci.jenkins.io, infra.ci.jenkins.io, weekly.ci.jenkins.io, release.ci.jenkins.io, cert.ci.jenkins.io
• issues.jenkins.io (JIRA)

Temporary disruptions (slow requests or outage of a few minutes) on:

• get.jenkins.io (mirror redirector)
• issue-redirect.jenkins.io
• javadoc.jenkins.io
• jenkins-wiki-exporter.jenkins.io
• plugins.jenkins.io
• plugin-health.jenkins.io

More details in https://github.com/jenkins-infra/helpdesk/issues/4908#issuecomment-4603087452.