Kubernetes v1.23.0-alpha.4 has been built and pushed using Golang version 1.17.2.
The release notes have been updated in CHANGELOG-1.23.md, with a pointer to them on GitHub:
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Ephemeral containers have reached beta maturity and are now available by default. (#105405, @verb) [SIG API Machinery, Apps, Node and Testing]
Introduce OS field in the Pod Spec (#104693, @ravisantoshgudimetla) [SIG API Machinery and Apps]
Introduce v1beta3 api for scheduler. This version
increases the weight of user specifiable priorities. The weights of following priority plugins are increased
Won't have HealthzBindAddress, MetricsBindAddress fields (#104251, @ravisantoshgudimetla) [SIG Scheduling and Testing]
JSON log output is configurable and now supports writing info messages to stdout and error messages to stderr. Info messages can be buffered in memory. The default is to write both to stdout without buffering, as before. (#104873, @pohly) [SIG API Machinery, Architecture, CLI, Cluster Lifecycle, Instrumentation, Node and Scheduling]
JobTrackingWithFinalizers graduates to beta. Feature is enabled by default. (#105687, @alculquicondor) [SIG Apps and Testing]
Remove NodeLease feature gate that was graduated and locked to stable in 1.17 release. (#105222, @cyclinder) [SIG Apps, Node and Testing]
TTLAfterFinished is now GA and enabled by default (#105219, @sahilvv) [SIG API Machinery, Apps, Auth and Testing]
The "Generic Ephemeral Volume" feature graduates to GA. It is now enabled unconditionally. (#105609, @pohly) [SIG API Machinery, Apps, Auth, Node, Scheduling, Storage and Testing]
The legacy scheduler policy config is removed in v1.23, the associated flags policy-config-file, policy-configmap, policy-configmap-namespace and use-legacy-policy-config are also removed. Migrate to Component Config instead, see https://kubernetes.io/docs/reference/scheduling/config/ for details. (#105424, @kerthcet) [SIG Scheduling and Testing]
Track the number of Pods with a Ready condition in Job status. The feature is alpha and needs the feature gate JobReadyPods to be enabled. (#104915, @alculquicondor) [SIG API Machinery, Apps, CLI and Testing]
Add a new distribute-cpus-across-numa
option to the static CPUManager
policy. When enabled, this will trigger the CPUManager
to evenly distribute CPUs across NUMA nodes in cases where more than one NUMA node is required to satisfy the allocation. (#105631, @klueska) [SIG Node]
Add support to generate client-side binaries for windows/arm64 platform (#104894, @pacoxu) [SIG CLI, Testing and Windows]
Added a new feature gate CustomResourceValidationExpressions
to enable expression validation for Custom Resource. (#105107, @cici37) [SIG API Machinery]
Adds new [alpha] command 'kubectl events' (#99557, @bboreham) [SIG CLI]
Client-go, using log level 9, trace the following events of an http request: - dns lookup - tcp dialing - tls handshake - time to get a connection from the pool - time to process a request (#105156, @aojea) [SIG API Machinery]
Client-go: pass DeleteOptions
down to the fake client Reactor
(#102945, @chenchun) [SIG API Machinery, Apps and Auth]
Enhance scheduler volumebinding plugin to handle Lost PVC as UnschedulableAndUnresolvable during PreFilter stage (#105245, @yibozhuang) [SIG Scheduling and Storage]
Feature-gate StorageObjectInUseProtection
has been deprecated and cannot be disabled. It will be completely removed in 1.25 (#105495, @ikeeip) [SIG Apps]
Kubectl will now provide shell completion choices for the --output/-o flag (#105851, @marckhouzam) [SIG CLI]
Kubernetes is now built with Golang 1.17.2 (#105563, @mengjiao-liu) [SIG API Machinery, Cloud Provider, Instrumentation, Release and Testing]
Move the getAllocatableResources endpoint in podresource-api to the beta that will make it enabled by default. (#105003, @swatisehgal) [SIG Node and Testing]
Node affinity, node selector and tolerations are now mutable for jobs that are suspended and have never been started (#105479, @ahg-g) [SIG Apps, Scheduling and Testing]
Pod template annotations and labels are now mutable for jobs that are suspended and have never been started (#105980, @ahg-g) [SIG Apps]
PodSecurity: add a container image and manifests for the PodSecurity validating admission webhook (#105923, @liggitt) [SIG Auth]
PodSecurity: in 1.23+ restricted policy levels, pods and containers which set runAsUser=0 are forbidden at admission-time; previously, they would be rejected at runtime (#105857, @liggitt) [SIG Auth]
Shell completion now knows to continue suggesting resource names when the command supports it. For example "kubectl get pod pod1 " will suggest more pod names. (#105711, @marckhouzam) [SIG CLI]
Support to enable Hyper-V in GCE Windows Nodes created with kube-up (#105999, @mauriciopoppe) [SIG Cloud Provider and Windows]
The CPUManager policy options are now enabled, and we introduce a graduation path for the new CPU Manager policy options. (#105012, @fromanirh) [SIG Node and Testing]
The etcd container image now supports Windows. (#92433, @claudiubelu) [SIG API Machinery and Windows]
The pods and pod controllers that are exempted from the PodSecurity admission process are now marked with the "pod-security.kubernetes.io/exempt: user/namespace/runtimeClass" annotation, based on what caused the exemption.
The enforcement level that allowed or denied pod during PodSecurity admission is now marked by the "pod-security.kubernetes.io/enforce-policy" annotation.
The annotation that informs about audit policy violations changed from ""pod-security.kubernetes.io/audit" to ""pod-security.kubernetes.io/audit-violation". (#105908, @stlaz) [SIG Auth]
When feature gate JobTrackingWithFinalizers is enabled:
kubectl diff --invalid-arg
status code from 1 to 2 to match docs (#105445, @ardaguclu) [SIG CLI]amd64
etcd images. (#105484, @saschagrunert) [SIG API Machinery]should support building a client with a CSR
e2e test to work with clusters configured with short certificate lifetimes (#105396, @liggitt) [SIG Auth and Testing]kubelet_volume_stats_*
metrics for generic ephemeral voiumes. (#105569, @pohly) [SIG Node]metadata.uid
and metadata.resourceVersion
preconditions (#105913, @aholic) [SIG Scheduling]--log-flush-frequency
had no effect in several commands or was missing. Help and warning texts were not always using the right format for a command (add_dir_header
instead of add-dir-header
). Fixing this included cleaning up flag handling in component-base/logs: that package no longer adds flags to the global flag sets. Commands which want the klog and --log-flush-frequency flags must explicitly call logs.AddFlags; the new cli.Run does that for commands. That helper function also covers flag normalization and printing of usage and errors in a consistent way (print usage text first if parsing failed, then the error). (#105076, @pohly) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Network, Node, Release, Scheduling and Testing]-v
and -vmodule
are deprecated. Support for -vmodule
is only guaranteed for the text log format. (#105042, @pohly) [SIG API Machinery, Architecture, CLI, Cluster Lifecycle and Instrumentation]/proxy
subresources with no additional URL path now only automatically redirect GET and HEAD requests. (#95128, @Riaankl) [SIG API Machinery, Architecture and Testing]pkg/scheduler/framework/plugins/interpodaffinity/filtering.go
,pkg/scheduler/framework/plugins/podtopologyspread/filtering.go
, pkg/scheduler/framework/plugins/volumezone/volume_zone.go
to structured logging (#105931, @mengjiao-liu) [SIG Instrumentation and Scheduling]cmd/kube-scheduler/app/server.go
, pkg/scheduler/framework/plugins/nodelabel/node_label.go
, pkg/scheduler/framework/plugins/nodevolumelimits/csi.go
, pkg/scheduler/framework/plugins/nodevolumelimits/non_csi.go
to structured logging (#105855, @shivanshu1333) [SIG Instrumentation and Scheduling]Nothing has changed.
Contributors, the
CHANGELOG-1.23.md has been bootstrapped with
v1.23.0-alpha.4 release notes and you may edit now as needed.
Published by your
Kubernetes Release
Managers.