Kubernetes v1.26.0-alpha.3 is live!

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Xander Grzywinski

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Nov 1, 2022, 6:56:30 PM11/1/22
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Kubernetes Community,

Kubernetes v1.26.0-alpha.3 has been built and pushed using Golang version 1.19.2.

The release notes have been updated in CHANGELOG-1.26.md, with a pointer to them on GitHub:

v1.26.0-alpha.3

Downloads for v1.26.0-alpha.3

Source Code

filename sha512 hash
kubernetes.tar.gz e38caad0331adb21176e326bbcf1b4f55385b00011fd476c12a7872a2cfa1d25d2d961f2986cc336549be71bc8f3513578317a852d39c0ad6c62bd3bd4ce17d1
kubernetes-src.tar.gz f5931854054f3d739636fccc78c29a9cb579e3885143dae7d89c72d9e41857acf91ee0166ef92766e414355258409ca209ce7c2cf512322cc0f2b17bb9670098

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz fbfa2b4af54b8765465a8892ad7ceb56f019132805d7c1f0d63e9e569a33a722862234c1184f395c865bf1e8393951b8ea50bf972766d8283281bd2fc0ada86a
kubernetes-client-darwin-arm64.tar.gz 5b9af35b9284a7f4813031f913e3aa014d3a1b1fa7823564409c8c6ce7a8a2272b2fb306bcbb777736d241b7997fcf4fed97388614ccdb25463f8f41f3398204
kubernetes-client-linux-386.tar.gz 0fe3a80e9dfa85798f1da7b24c94c83328d4a00e4032b6dbe03c674fe39bd35a8a53c7b005fc9d81f0992920d4b66d25dc3a50c87df9884cdc4df9a61cca82f8
kubernetes-client-linux-amd64.tar.gz 36ef2a886f871bbf674aa740de4c2f61be4f80b8dd68c38b784af4a92a03af659ffab8de6a06cb400fbeea6bcb6f2eef9e809c5959a9050de5e0dd63521fcefa
kubernetes-client-linux-arm.tar.gz ae8a4f8e568843ea6f4321b0b7e2779ef1177e86ea979355509cf5788a05d1b08eaae54d400296b41ef5463d7e576df9d5943104ac830cf17f7e9e879460dc43
kubernetes-client-linux-arm64.tar.gz c8f10f35b38509b9c02af2946dfa96e86a8dca69c587754cdfe0cda0cfee8fbcf118fd8fa92543a04571d370c3a9942f40d19e0740efa301a2f9e542be4c0051
kubernetes-client-linux-ppc64le.tar.gz c416055c92483ec93d0ecfd4c1738ed1c9aafd9d68f806dc0e9b3fbe994c60fbb41baaa9a64fd1a5725ae16d6e22e93c40f8be5af4e122d1eb1d095d2f7a6c26
kubernetes-client-linux-s390x.tar.gz 88155930c24f784d6f73864af07518d0cdde486e32857d1d057d0ed0bfce7c8c7501f1fc29275747d7b50d812e910b1fb2fa14f7ef91aeedeaf530cdbe9094f7
kubernetes-client-windows-386.tar.gz 3c89c5044ca402bb022af618404839eb0cadb3e89552c4002386503911b1e4622a16a4452c26310ee2ead49058faa17711136435f3303271be903dabce93ae0d
kubernetes-client-windows-amd64.tar.gz 8d053b7eb02e850d2d70492d0cbd76e6b68ff43b3373539563c67ab2dc66895a387f4e7dfb31dffde85a32086beb8db3a12a55dd5e9f4261bd768c853be3e6fa
kubernetes-client-windows-arm64.tar.gz 0034b8b34b66cf72f9a77ffe0ab441517f12ba7bafbcf8abea7b6650f8936da0a4e90f56a315dc2d16392684167850401de6c1dbf386bce2e28aeab9e3b4963d

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 1b7c60428a326c337c59080923766d46c7b4a9c0ffc7125d6000f410a1cbd488403a00d36ea22a7fbddf70aa78c53e06c4d0cb434f254b7e883481393a99dec7
kubernetes-server-linux-arm.tar.gz 4eec57f333e4d5cc99929465e6bf01f057351925d5b38c92751c1b30a2f1f61d81db14d95100c5ea01950eee4ef172772e91dc38000ec50bfa1e01f8a62e0d54
kubernetes-server-linux-arm64.tar.gz a6a11db5f669e0705083269df9813c8da9e7d61f76c78ac0cb55ea9cfffad865e0de7b129727192cec03ecae89d7e51f1097b010290106a5ac8a563294fb69b2
kubernetes-server-linux-ppc64le.tar.gz 3b66310e6adad44b38a02eb315281e15e3f6f4fd6490ea279a3f962ca27b6537f4210a2db8e0648816614e2a9d73a622fdf0bac2ea0dc2c462543ce44acc3a45
kubernetes-server-linux-s390x.tar.gz 4dd94f22f4a309aa3fc0f92d1708a31660b291270107baf8ed80bbb49677136cce17345edf21e1a132584702218192e85876d36211884880629a8a38b98e6680

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 1c8b21a36d18a9a6c3ebf92cd61d9b36ef06b5e415f4bbf86518d3a740cb132a767c1b806e0b65e3a52eb8a2fc6452d0e897aaeea4505ad5206b0b304f784e0e
kubernetes-node-linux-arm.tar.gz 23797df2c5eb2fe473d06edb3fe032f2c55bb68eaa2074d1ce3f0455545076be5859288bc835d194da2291dc488da375ecbf21511f9876ca80da978f5ff3491c
kubernetes-node-linux-arm64.tar.gz 5f2ce6867228dc4cdb4a418421ac28d7f3a4e4e2f5ba7470cd141dc3b45978537d19ba81f0bd3751ba0ba31a3f67b41d7fac7932623cfd719b526fe3a879e42c
kubernetes-node-linux-ppc64le.tar.gz 9acdaf23e8e8a8bc5afac8fbccd1325f45a0bcf7ac1e02beaf2e54e54dfc95e5d90b5efeb9dfbfa9ebfd83331f7daeb928f2ad579ba02d234e0294a9df1e1d6e
kubernetes-node-linux-s390x.tar.gz d971dc06b94a02b23d384c366946a0304f53513717180351c70eef989841a33940fa56698d4f30161cd15ac47f2577569ff2cf63775d5c191ba798695d48f252
kubernetes-node-windows-amd64.tar.gz a2db5de15c72c6bc9bcd29dca31f6abf5c6cd3dd60c448bf4c4d93ad13f2864cd0904feaa5f0d3954c0199dcd64191dc97128863275e69705a3208c91f7f8b73

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
k8s.gcr.io/conformance:v1.26.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
k8s.gcr.io/kube-apiserver:v1.26.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
k8s.gcr.io/kube-controller-manager:v1.26.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
k8s.gcr.io/kube-proxy:v1.26.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
k8s.gcr.io/kube-scheduler:v1.26.0-alpha.3 amd64, arm, arm64, ppc64le, s390x

Changelog since v1.26.0-alpha.2

Changes by Kind

API Change

  • Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

    • Add percentageOfNodesToScore as a scheduler profile level parameter to API version v1. If a profile percentageOfNodesToScore is set, it will override global percentageOfNodesToScore. (#112521, @yuanchen8911) [SIG API Machinery, Scheduling and Testing]

  • Kube-controller-manager supports '--concurrent-horizontal-pod-autoscaler-syncs' flag to set the number of horizontal pod autoscaler controller workers. (#108501, @zroubalik) [SIG API Machinery, Apps and Autoscaling]

  • Kube-proxy: The "userspace" proxy mode (deprecated for over a year) is no longer supported on either Linux or Windows. Users should use "iptables" or "ipvs" on Linux, or "kernelspace" on Windows. (#112133, @knabben) [SIG API Machinery, Network, Scalability, Testing and Windows]

  • Kubectl wait command with jsonpath flag will wait for target path appear until timeout. (#109525, @jonyhy96) [SIG CLI and Testing]

  • Kubelet external Credential Provider feature is moved to GA. Credential Provider Plugin and Credential Provider Config APIs updated from v1beta1 to v1 with no API changes. (#111616, @ndixita) [SIG API Machinery, Node, Scheduling and Testing]

  • The DynamicKubeletConfig feature gate has been removed from the API server. Dynamic kubelet reconfiguration now cannot be used even when older nodes are still attempting to rely on it. This is aligned with the Kubernetes version skew policy. (#112643, @SergeyKanzhelev) [SIG API Machinery, Apps, Auth, Node and Testing]

Feature

  • API Server Tracing now includes a variety of new spans and span events. (#113172, @dashpole) [SIG API Machinery, Architecture, Auth, Instrumentation, Network, Node and Scheduling]
  • Add kubelet metrics to track the cpumanager cpu allocation and pinning (#112855, @fromanirh) [SIG Instrumentation, Node and Testing]
  • Added categories column to the kubectl api-resources command's wide output (-o wide). Added --categories flag to the kubectl api-resources command, which can be used to filter the output to show only resources belonging to one or more categories. (#111096, @brianpursley) [SIG CLI]
  • Admission control plugin "DefaultStorageClass": If more than one StorageClass is designated as default (via the "storageclass.kubernetes.io/is-default-class" annotation), choose the newest one instead of throwing an error. (#110559, @danishprakash) [SIG Apps and Storage]
  • Change preemption_victims metric bucket from LinearBuckets to ExponentialBuckets. (#112939, @lengrongfu) [SIG Instrumentation and Scheduling]
  • Extend the job job_finished_total metric by new reason` label and introduce a new job metric to count pod failures handled by pod failure policy with respect to the action applied. (#113324, @mimowo) [SIG Apps and Testing]
  • Graduate ServiceIPStaticSubrange feature to GA (#112163, @aojea) [SIG Network]
  • If ComponentSLIs feature gate is enabled, then /metrics/slis becomes available on kube-controller-manager, allowing you to scrape health check metrics. (#112978, @logicalhan) [SIG API Machinery and Cloud Provider]
  • If ComponentSLIs feature gate is enabled, then /metrics/slis becomes available on kube-proxy allowing you to scrape health check metrics. (#113057, @Richabanker) [SIG Network]
  • If ComponentSLIs feature gate is enabled, then /metrics/slis becomes available on kube-scheduler, allowing you to scrape health check metrics. (#113026, @Richabanker) [SIG Scheduling]
  • If ComponentSLIs feature gate is enabled, then /metrics/slis becomes available on kubelet, allowing you to scrape health check metrics. (#113030, @Richabanker) [SIG Node]
  • Kubeadm: command kubeadm join phase control-plane-prepare certs is now supporting to run with dry-run mode on it's own (#113005, @chendave) [SIG Cluster Lifecycle]
  • Logs of requests that were timed out by a timeout handler will no longer contain a "statusStack" and "logging error output" fields (#112374, @Argh4k) [SIG API Machinery]
  • Metrics for RetroactiveDefaultStorageClass feature are now available. To see an attempt count for updating PVC retroactively with a default StorageClass see retroactive_storageclass_total metric and for total numer of errors see retroactive_storageclass_errors_total. (#113323, @RomanBednar) [SIG Apps]
  • New metric job_controller_terminated_pods_tracking_finalizer can be used to monitor whether the job controller is removing Pod finalizers from terminated Pods after accounting them in Job status. (#113176, @alculquicondor) [SIG Apps, Instrumentation and Testing]
  • Shell completion will now show plugin names when appropriate. Furthermore, shell completion will work for plugins that provide such support. (#105867, @marckhouzam) [SIG CLI]
  • The ExpandedDNSConfig feature has graduated to beta and is enabled by default. Note that this feature requires container runtime support. (#112824, @gjkim42) [SIG Network and Testing]
  • When the alpha LegacyServiceAccountTokenTracking feature gate is enabled, secret-based service account tokens will have a kubernetes.io/legacy-token-last-used applied to them containing the date they were last used. (#108858, @zshihang) [SIG API Machinery, Auth and Testing]

Bug or Regression

  • Bump golang.org/x/net to v0.1.1-0.20221027164007-c63010009c80 (#112693, @aimuz) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node, Security and Storage]
  • Fix the occasional double-counting of the job_finished_total metric (#112948, @mimowo) [SIG Apps, Architecture, Instrumentation and Testing]
  • Fixed a bug where a change in the appProtocol for a Service did not trigger a load balancer update. (#112785, @MartinForReal) [SIG Cloud Provider and Network]
  • Fixed a bug where the kubelet chooses the wrong container by its name when running kubectl exec. (#113041, @saschagrunert) [SIG Node]
  • Fixed an issue where the APIServer would panic on startup if an egress selector without a controlplane configuration is specified when using APIServerTracing (#112979, @dashpole) [SIG API Machinery, Instrumentation and Testing]
  • Fixed: #22422 Admission controllers can cause unnecessary significant load on apiserver (#112696, @aimuz) [SIG Scalability]
  • Kube-apiserver: DELETECOLLECTION API requests are now recorded in metrics with the correct verb. (#113133, @sxllwx) [SIG API Machinery]
  • Kube-apiserver: custom resources can now be specified in the --encryption-provider-config file and can be encrypted in etcd (#113015, @ritazh) [SIG API Machinery, Auth and Testing]
  • Kube-proxy, will restart in case it detects that the Node assigned pod.Spec.PodCIDRs have changed (#111344, @aojea) [SIG Network]
  • Kubectl now escapes terminal special characters in output. This fixes CVE-2021-25743. (#112553, @dgl) [SIG CLI and Security]
  • Kubectl: fixed a bug where kubectl convert did not pick the right API version (#112700, @SataQiu) [SIG CLI]
  • Kubelet: Fixes a startup crash in devicemanager (#113021, @rphillips) [SIG Node]
  • Nested mountpoints are now group correctly on all cases. (#112571, @claudiubelu) [SIG Storage and Windows]
  • The metrics(time duration) of a failed or unschedulable scheduling attempt will be longer for it will include the duration time of the unreserve operation now. (#113113, @kerthcet) [SIG Scheduling]
  • Updates golang.org/x/text to v0.3.8 to fix CVE-2022-32149 (#112989, @ameukam) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node and Storage]
  • Use SSA to add pod disruption conditions by scheduler and controller-manager (#113304, @mimowo) [SIG API Machinery, Apps and Scheduling]

Other (Cleanup or Flake)

  • Kubeadm: remove the UnversionedKubeletConfigMap feature gate. The feature has been GA and locked to enabled since 1.25. (#113448, @pacoxu) [SIG Cluster Lifecycle]
  • Removing Windows Server, Version 20H2 flavors from various container images (#112924, @marosset) [SIG Testing and Windows]
  • Service session affinity timeout tests are no longer required for Kubernetes network plugin conformance due to variations in existing implementations. New conformance tests will be developed to better express conformance in future releases. (#112806, @dcbw) [SIG Architecture, Network and Testing]
  • The e2e.test binary no longer emits JSON structs to document progress. (#113212, @pohly) [SIG Testing]
  • The metric etcd_db_total_size_in_bytes is renamed to apiserver_storage_db_total_size_in_bytes. (#113310, @logicalhan) [SIG API Machinery]

Dependencies

Added

Changed

Removed


Contributors, the CHANGELOG-1.26.md has been bootstrapped with v1.26.0-alpha.3 release notes and you may edit now as needed.



Published by your Kubernetes Release Managers.

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