Week Ending April 12, 2020

Developer News

Migrating the project’s container images linked via k8s.gcr.io from gcr.io/google-containers to gcr.io/k8s-artifacts-prod has been rolled back because we discovered a number of undocumented internal references the hard way. The infrastructure team will be cleaning things up and retrying this migration sometime next month.

Project Zoom accounts have been locked down more: owners will need to use the Zoom app, and attendees will have to log in if they follow a web link. Please remember to update your Zoom client, and follow the Zoom guidelines.

Release Schedule

Next Deadline: Start Enhancements Tracking, April 14

The 1.19 release cycle has officially started, and has a schedule. We start tracking enhancements tommorrow, so update those KEPs; you have until May 5th to figure out what your SIG will work on this cycle.

The Release team is also selecting shadows for the various roles, so if you’ve always wanted to participate, here’s your chance. Deadline Tuesday.

Version 1.18 has its first update, v1.18.1, that fixes a bunch of bugs.

Featured PRs

#89912: Move scheduler’s NodeInfo and Listers types to framework pkg

A quiet week in PRs, one big set of improvements this week was to the NodeInfo type and surrounding code. This PR was the big one, a package swap that will need updating in most current scheduler PRs as well as things linking against the scheduler code. This was joined by #90030 which did further cleanups to the API and made it more idiomatic Go.

#89652: Fix client watch reestablishment handling of client-side timeouts

And then a client-oriented fix, avoiding fallback to full collection list on watch failures if there is a client-side timeout. As a separate server-side fix, #89881 improves the behavior of watches during unplanned Etcd failovers.

Other 1.19 Changes

Process Namespace Sharing for pods is enabled for all users
Kubeadm switches control-plane pods to system-node-critical priority
Now you can do a dry run of kubectl scale
Add config to have kube-proxy fail if it can’t bind a port
JSONpath expressions with nested ranges work now
Add some unit tests for human-readable duration formatting

Bug Fixes and Other Merges

Most of these have been backpatched to all supported versions.

Restore ability to use kubectl apply --prune without specifying a namespace
Make client-go handle informer timeouts gracefully instead of reverting to list request mode
Fix priority for static control plane pods
Stop HPA from mangling annotations
Don’t crash the scheduler by updating its cache on a deleted node
GCE ILB allows creating load balancers for over 1000 nodes
Don’t drop integers in JSON, permitting (among other things) using scalars for CRD custom fields
Fix permissions for EndpointSlice controller

Version Updates

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