Annual Report Summary 2021

Author: Paris Pittman (Steering Committee) Last year, we published our first Annual Report Summary for 2020 and it's already time for our second edition! 2021 Annual Report Summary This summary reflects the work that has been done in 2021 and the initiatives on deck for the rest of 2022.Please forward to organizations and indidviduals participating in upstream activities, planning cloud native strategies, and/or those looking to help out.To find a specific community group's complete report, go to

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Author: Mayank Kumar (Salesforce) Kubernetes StatefulSets, since their introduction in 1.5 and becoming stable in 1.9, have been widely used to run stateful applications.They provide stable pod identity, persistent per pod storage and ordered graceful deployment, scaling and rolling updates.You can think of StatefulSet as the atomic building block for running complex stateful applications.As the use of Kubernetes has grown, so has the number of scenarios requiring StatefulSets.Many of these scenarios, require faster rolling updates than the currently supported one-pod-at-a-time updates, in the case where you're using

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Authors: Patrick Ohly (Intel) The Structured Logging Working Group has added new capabilities to the logging infrastructure in Kubernetes 1.24.This blog post explains how developers can take advantage of those to make log output more useful and how they can get involved with improving Kubernetes.

Structured logging

The goal of structured logging is to replace C-style formatting and the resulting opaque log strings with log entries that have a well-defined syntax for storing message and parameters separately, for example as a JSON struct. When using the traditional klog

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Author: Antonio Ojea (Red Hat)

In Kubernetes, Services are an abstract way to expose an application running on a set of Pods.Services can have a cluster-scoped virtual IP address (using a Service of type:ClusterIP).Clients can connect using that virtual IP address, and Kubernetes then load-balances traffic to that Service across the different backing Pods.

How Service ClusterIPs are allocated?

A Service ClusterIP can be assigned:

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Authors Xing Yang and Yassine Tijani (VMware) Kubernetes v1.24 introduces alpha support for Non-Graceful Node Shutdown.This feature allows stateful workloads to failover to a different node after the original node is shutdown or in a non-recoverable state such as hardware failure or broken OS.

How is this different from Graceful Node Shutdown

You might have heard about the Graceful Node Shutdown capability of Kubernetes, and are wondering how the Non-Graceful Node Shutdown feature is different from that.Graceful Node Shutdown allows Kubernetes to

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