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Last Week in Kubernetes Development

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Week Ending May 17, 2020

Developer News

This Thursday is the May Community Meeting at 10am PDT/1700 UTC. SIGs Testing, UI, API Machinery, and Usability are presenting.

WG LTS wants to mark a year of patch support “implementable” based on the manifest fact that we are already supporting 1.16 for a year.

Release Schedule

Next Deadline: Enhancements Freeze, May 19th

Is your enhancement issue filed? Your KEP marked “implementable” and complete? It’s now, or wait for 1.20 (or file an exception).

All supported versions (1.16, 1.17, and 1.18) will be getting updated on Wednesday

#90183: Update kubernetes to klog v2

Kubernetes supports and requires klog v2 in v1.19, so get ready to update/rewrite your log-watching tools when you eventually upgrade. This change to logging is the major step in implementing structured logging, which will allow folks to impement better log digestion tools and do less ad-hoc text parsing. This was also joined by a new feature in the dependency linter to ensure that klog v1 (or future libraries) do not accidentally be added back in.

#90978: Changed scheduler to use patch when updating pod status

A good reminder about race conditions between controllers, using Update or UpdateStatus calls in places where multiple controllers write to the same structure can lead to either failed writes or stomping on updates if you aren’t careful. Using a Patch request instead allows for more careful control over this, and in the future Server Side Apply will potentially allow for more direct detection of conflicts through field tracking.

#91046: kubelet no longer registers “beta.kubernetes.io/os” and “beta.kubernetes.io/arch” node labels to apiserver

The beta.kubernetes.io/os and beta.kubernetes.io/arch automatic node labels were deprecated back in 1.14 and have now been removed entirely. Make sure to check all your node selector and affinity settings to ensure they are using the kubernetes.io forms.

Other Merges


Version Updates

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