Week Ending April 15, 2018

Community Meeting Summary

Last week’s Community Meeting started with a demo of CRI-O supporting Kubernetes 1.10 by Antonio Murdaca. He showed off the alternate runtime, and then discussed whether SIG-Node would move to it as the default (answer: depends on test coverage).

Steve Wong introduced SIG-VMWare, a new SIG working on Kubernetes compatibility with VMware & VSphere. They had there first meeting and published their charter last month. SIG-Windows, explained by Michael Michael, has been busy since 1.9 improving support for Windows containers, including resources, file system stats, Flexv, isolation, and e2e testing. They hope for a stable release to coincide with Windows Server 2019. Former SIG On-Prem has announced that they are demoting themselves from a SIG to a Workgroup/discussion forum.

Test-Infra is disabling the cherrypick-auto-approve munger bot, because nobody ever understood how it worked. Brian Grant, on behalf of the Steering Committee, said they were working on charters, with 6 in process, and explaining sub-projects to SIGs. Finally, Dan Kohn demoed the new CNCF interactive landscape.

Release Schedule

Next Deadline: Feature Freeze, May 24th.

This was week 2 of 12 for 1.11. SIGs need to add their features to the features repo and the feature tracking spreadsheet. The release team also discussed a plan for shortening Code Freeze if all tests are passing by May 18th.

Kubernetes 1.10.1 patch release came out on Friday.

Feature Work

There were 156 merges to the main repository this week.

• Refactor of affinity/anti-affinity, including 20x performance improvements and fixing OR conditions.
• kube-up.sh now supports Kubelet config files.
• The migrate-if-needed.sh script for upgrading Etcd has been rewritten in go.
• CRDs can validate additionalProperties using a schema, so that dynamic properties are supported.
• Add generator for Deployments, now defaulting to deployment-basic/apps.v1.
• kubeadm init adds a –cluster-name switch, and is reporting preflight etcd errors.
• kubeadm also added a verbosity setting for command logging.

Deprecations and Reversions

• Code that allowed the controller-manager to approve certificates has been removed until fully ready.
• Mount propagation default has been reverted to “private” from 1.10’s “rslave” because of regressions.
• Revert gitRepo to eariler code, no longer requiring 1.85+, since gitRepo volumes are being deprecated anyway.
• The “initresource admission” plugin has been removed.

Version Updates

• Etcd to 3.2.18
• Cluster Autoscaler to 1.2.1(backported)
• GLBC to 1.1.0

Other Merges

• Logging all REST API calls has been raised to log level 3.
• VMSS node MachineID selection is fixed in 1.10.
• Don’t loop forever when NFS PVs are recycled.
• Prevent unmount stall with containerized Kubelet.
• Azure now selects the correct LoadBalancer.
• Multiple Windows fixes, including fixing user-visible file creation, local volume paths, and file type checking.
• Fix RBAC for daemon-set-controller.
• Better iptables FORWARD rules in IPVS proxier.
• Cinder volumes stop accepting commands once they’re in error mode.

Graph of the Week

Aaron Crickenberger showed off the new PRs by Labels chart. This chart checks numbers of pull requests stuck because of needing submitter or owner actions, such as “needs-rebase” or “needs-OK-to-test”.

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