Hello dear Jenkins contributors,

The Jenkins infrastructure team is operating all the Kubernetes clusters to get 
them upgraded.

The operation is planned:

- Today (Wednesday 22 of February 2023) for Digital Ocean and Amazon clusters. 
Expected impacts are:
  > ci.jenkins.io <http://ci.jenkins.io/> build queue might grow until the 
upgrades are finished.
  > The builds on ci.jenkins.io <http://ci.jenkins.io/> might be slowed down 
due to the caching proxy rolling upgrade. We do not expect breakage (as the 
service is replicated twice on each cloud) but it is the first operation on 
this service.

- Tomorrow (Thursday 23 of February 2023) for the Azure clusters (private and 
publics). Expected impacts are:
  > All the preview for *.jenkins.io <http://jenkins.io/> websites will be 
either failing or slowed down during the upgrade
  > Unavailability of the LDAP (ldap.jenkins.io <http://ldap.jenkins.io/>) 
during the restart + slower response times on the other services 
(accounts.jenkins.io <http://accounts.jenkins.io/>, plugins.jenkins.io 
<http://plugins.jenkins.io/> components, bots, private controllers)


If you are curious, the following GitHub issue tracks the work: 
https://github.com/jenkins-infra/helpdesk/issues/3387.
The operation is also advertised on https://status.jenkins.io 
<https://status.jenkins.io/> .

If you have any problem related to this change, please open an issue on 
https://github.com/jenkins-infra/helpdesk.

Cheers,

Damien DUPORTA, for the Jenkins Infra team

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