Author: Aravindh Puthiyaparambil (Red Hat)
Kubernetes 1.27 introduced a new feature called Node log
query that allows viewing logs of services running on the
node.
What problem does it solve?
Cluster administrators face issues when debugging malfunctioning
services running on the node.They usually have to SSH or RDP into
the node to view the logs of the service to debug the issue.The
Node log query feature helps with this scenario by
allowing the cluster administrator to view the logs using
kubectl.This is
Author: Chris Henzie (Google) With the release of
Kubernetes v1.27 the ReadWriteOncePod feature has graduated to
beta.In this blog post, we'll take a closer look at this feature,
what it does, and how it has evolved in the beta release.
What is ReadWriteOncePod?
ReadWriteOncePod is a new access mode for PersistentVolumes (PVs) and PersistentVolumeClaims (PVCs) introduced in
Kubernetes v1.22.This access mode enables you to restrict volume
access to a single pod in the cluster, ensuring that only one pod
can write to the volume at a time.
On Linux with Security-Enhanced Linux (SELinux) enabled, it's
traditionally the container runtime that applies SELinux labels to
a Pod and all its volumes.Kubernetes only passes the SELinux label
from a Pod's securityContext fields to the container
runtime.
The container runtime then recursively changes SELinux label on
all files that are visible to the Pod's containers.This can be
time-consuming if there are many files on the volume, especially
when the volume is on a remote filesystem.
As time passed, we - SIG Scheduling - received feedback from
users, and, as a result, we're actively working on improving the
Topology Spread feature via three KEPs.All of these features have
reached beta in Kubernetes v1.27 and are enabled by default.
This blog post introduces each feature and the use case behind
each of them.
Authors:Kubernetes v1.27 Release Team Announcing the
release of Kubernetes v1.27, the first release of 2023! This
release consist of 60 enhancements.18 of those enhancements are
entering Alpha, 29 are graduating to Beta, and 13 are graduating to
Stable.
Release theme and logo
Kubernetes v1.27:Chill Vibes The theme for
Kubernetes v1.27 is Chill Vibes.
