Last Week in Kubernetes Development
Stay up-to-date on Kubernetes development in 15 minutes a week.
Week Ending January 16, 2022
Developer News
We plan to switch to EasyCLA on February 5th. Please check the EasyCLA results in any PRs you submit this week; is EasyCLA correctly finding your CLA? If not, file a ticket as soon as you see problems.
Reminder: now that kubernetes-dev@googlegroups has been replaced by dev@kubernetes.io, please remember to share any community docs you have (like SIG agendas, etc.) with dev@kubernetes.io.
What if logging in Kubernetes was fully pluggable? Patrick Ohly is soliciting feedback on a KEP for “contextual logging”. Drawback: requires another project-wide overhaul, just like structured logging did.
SIG-Docs has promoted a bunch of new people to leadership, including adding some new lead roles such as “Localization Lead”. Frederic Branczyk has stepped down as TL of SIG-Instrumentation and the SIG suggests Damien Grisonnet to take his place.
Release Schedule
Next Deadline: PRR heads-ups due, January 27th
This is the 2nd week of the 1.24 release cycle, and everyone should be at work on your KEPs. The first CI Signal report is out, so take a look at those flaky/failing tests, please!
Updates for 1.23, 1.22, 1.21, and 1.20 are due out Wednesday. This will be the last update for 1.20, so folks on that version should be planning upgrades.
Featured PRs
#107293: Cleanup OWNERS files - Jan 2021 Week 1
Kicking off 2022 with a bit of tidying up! To keep our project governance healthy, we periodically remove inactive contributors from our approver configrations. If this affects you directly, you should have already received a ping on the PR. If this has caught anyone off gaurd, please reach out to SIG-ContribEx so we can get stuff fixed for you ASAP.
#106978: log message verbosity
As we’ve moved to structured logging, JSON output has become indispensible to many users. Including log line metadata allows for a lot of post-processing and query support in tools like Loki and ElasticSearch. One persistent problem lately has been log lines coming through with the wrong verbosity metadata due to code like:
if klog.V(5).Enabled() {
klog.Info("hello world")
}
While the V(5) is used for the conditional output, the actual log line is produced with v=0. To correct this, we need use klog.V(5).Info(...) instead. This PR updates all existing instances of this issue however be alert for the future!
Other Merges
- The RBD migration feature gate spelling has been corrected to
CSIMigrationRBD; if you used it before now, you’ll need to fix your config kubeadm resetcan dry run- kube-scheduler shouldn’t panic just because you have a bad selector
- IPv4 routes in upgraded clusters get removed with their nodes
- Structured Logging Migration: csi-client.go
Promotions
- OpenStack Cinder CSI migration is GA and on by default
Deprecated
- Per earlier discussions, dynamic log sanitization is gone
- Kubeadm has removed Dockershim support, which will require you to update your configs if they talk to the Docker socket
- fluentd-elasticsearch addon is no longer shipped with Kubernetes; you can get it from its own repo
Version Updates
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