Kubernetes v1.23.0-alpha.1 is live!

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Nabarun Pal

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Aug 19, 2021, 12:40:32 PM8/19/21
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Kubernetes Community,

Kubernetes v1.23.0-alpha.1 has been built and pushed using Golang version 1.16.7.

The release notes have been updated in CHANGELOG-1.23.md, with a pointer to them on GitHub:

v1.23.0-alpha.1

Downloads for v1.23.0-alpha.1

Source Code

filename sha512 hash
kubernetes.tar.gz f7c76f1e077b5d98019347b2c9b79eaa0c79d428542b9c15dab23886c276ca16314f200ca37af914c52264c0e1e5d0bde639d6adf37368d5e7b29d230df00d95
kubernetes-src.tar.gz f267f26eca20cd7018e68abeeed38aed5c10dbbae7c531c4e08e507196a4dd3f511eb8d41ee8b09495544337d8e1940a8ca04e94084f8dd172698a96564fb070

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz deb110839c2c3cf94ca9b29df2f0b07b3fad6937d7bb6e9d2516d01345c8e324f6ab86fe1d34f1443f04c3d1fc328b53b3d756c295f4ed22f1994071fbc8c9cb
kubernetes-client-darwin-arm64.tar.gz 1473cb9fc4847b0daff6c9e3189ce55fadc22fb6190161e744e5438066a714cb467fdebfb35f6445a27f5010df94ee602fff492a2382e0f308fda111d53af1f4
kubernetes-client-linux-386.tar.gz ed5f5b0777ca51790d185764afc2c812f82ae27c35d897570fc86cabee90dc0a445d9d8c37c981bd3684ba9cd47dc0d75d0094578e79ef7b591d3c1b6564280f
kubernetes-client-linux-amd64.tar.gz 39f2a888e7a43c9e4a4018301894786f6babe23d79ab7a143e06444f69bc14aec2e158d355c5b48da4356e7bd72ec9b1268f8b12815c8b709395f36ad9a68a2f
kubernetes-client-linux-arm.tar.gz b6b8333d8adb4bc6a943bcd2c6cd1a0aeaf0b926d06aa03b759e3c723c81ccc91804debc64fedcd7d678eefdee9bdacc52b2891bd084a15fd5f7918a70e51a15
kubernetes-client-linux-arm64.tar.gz 3cb8217b9a5363cebad4989253e02c8a37259b61eafc2f08681508c11c5f68448cad43282257c3d90ad510cc9a62645b7f1adeb99fedf5e13c181495e3754ee4
kubernetes-client-linux-ppc64le.tar.gz e411700fb13b25deca6347983cdafe47199f0df00086ccd7b3e7d52a7b3bee7e96a85c2568dd52c956fd4ea8b4a6991859c57c9b73a13e06440b456c65b11687
kubernetes-client-linux-s390x.tar.gz 6c1395792a175de77436352d0893476363497b0f6a616f4415f91aed5e780d1f25b515021939a7563046237c7b651caba0d1fbf7c4c461677d1b9308b227e94c
kubernetes-client-windows-386.tar.gz f3aec7136c21d24a99145ce294a859078fcbf11bae132b8b4081555a6656c0d95ccbaca02a86dc257d557ecebc0673d0771b9cdd10593712a643e8cc0f61d681
kubernetes-client-windows-amd64.tar.gz b29697ba0a25f3d871ffbe5800dcb23ec9fd27c0122a284e17c21f1258f7dd9d341813aeb7826159c7999581a16db19fbb6eeeab48f5c89975df7595d19102c3

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz a5b3edca559b84cd9d22b43b23d0607951d434e185dcb313b831604d83dd306cfc017599994d3944ce77360116024eb59a302851325bb2c29c185a80db2e6eac
kubernetes-server-linux-arm.tar.gz 2334dbcff3ba22a50f252998eb63991b6c816659dbaa5f749370fc1b1f78f0af7739e50ab64c14a23c4e7dfa8917568e2a3b85bdffdb2cc691ee23ae8f5c8326
kubernetes-server-linux-arm64.tar.gz 58674443ce6e359a995dd7c4289bf730e616bcaf336837b77333a206d4e98693d9356a0a670ffbe0b274e2997a8b76a164153cf084f0ff5f91f40f00b5512684
kubernetes-server-linux-ppc64le.tar.gz f60ebdd04e2348b1ba51540cad93fa24cb133fd25db97150000bffaff8ccb41e1b6506bcde6b7d913aee7701478f975a97775430a82980105383fdb1cc13d260
kubernetes-server-linux-s390x.tar.gz ff008aa0ba1bf755f32c7251c6aceb12b6f9de00d2e2729302b51960e70e486bd82da62d21d70ad81c14e01910ab2afe0fd2509ebfdec050d36f88ee1f0330b2

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 352502f10fbc4579bd9556e3f73ca7513184371ea563d12a39d655d39bb14ccf0f485f4f2b54a77d984c91ff0de2acea7225f98532a1247da5b9ecc65081bc1a
kubernetes-node-linux-arm.tar.gz af9de95e2b9e4c1f39cb9757d4dca020f7d276b6702302a2d92e7a93e9986528615ce54531e62b96f6e8a0b9863cddbb264f42b1f59374948ac3499af60d9532
kubernetes-node-linux-arm64.tar.gz 45a286cb1d469b16d046af02047cf63a8407222e4a39fe696f5652e0587e0c9ffbdbab6505ce85e2726ba10db3189a7fbe70e316bc610caedc8cbb49fed28076
kubernetes-node-linux-ppc64le.tar.gz 7a540a3ff0295998a1679b0ccd50cb1825faf1d0afd6ed08138ab3767c83a2743aa43b122c8da89ee00161f57c0af8d76012e890f9fe6d77b4ee8aff4e32e50f
kubernetes-node-linux-s390x.tar.gz 3cd7656221ac2fa161abcf237878cff26c1d97cf77d9b784736c97a56841397ff859e43947d81a83f8fe4164701da41a1dad69b551c4e1fee49b3f8196878236
kubernetes-node-windows-amd64.tar.gz 21e63913024e88a48244a598cd400fbae6ce8f8910202f1b635812fbc9281b7c6097eb10a321dd18846484a198845bba58970d83b5119a367862cf8418d4d08c

Changelog since v1.22.0

Urgent Upgrade Notes

(No, really, you MUST read this before you upgrade)

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

  • Kubeadm: remove the deprecated flag --experimental-patches for the init|join|upgrade commands. The flag --patches is no longer allowed in a mixture with the flag --config. Please use the kubeadm configuration for setting patches for a node using {Init|Join}Configuration.patches. (#104065, @pacoxu) [SIG Cluster Lifecycle]

Changes by Kind

Deprecation

  • Add apiserver_longrunning_requests metric to replace the soon to be deprecated apiserver_longrunning_gauge metric. (#103799, @jyz0309) [SIG API Machinery, Cluster Lifecycle and Instrumentation]
  • Kubeadm: remove the --port flag from the manifest for the kube-controller-manager since the flag has been a NO-OP since 1.22 and insecure serving was removed for the component. (#104157, @knight42) [SIG Cluster Lifecycle]

API Change

Feature

  • Adding support for multiple --from-env-file flags (#101646, @lauchokyip) [SIG CLI]

  • All folks to build kubernetes with a custom kube-cross image (#104185, @dims) [SIG Release and Testing]

  • Allow node expansion of local volumes (#102886, @gnufied) [SIG Storage and Testing]

  • Client-go event library allows customizing spam filtering function. It is now possible to override SpamKeyFunc, which is used by event filtering to detect spam in the events. (#103918, @olagacek) [SIG API Machinery and Instrumentation]

  • Constants/variables from k8s.io for STABLE metrics is now supported (#103654, @coffeepac) [SIG Auth, Instrumentation, Node and Testing]

  • Display Labels when kubectl describe ingress (#103894, @kabab) [SIG CLI]

  • Expose a NewUnstructuredExtractor from apply configurations meta/v1 package that enables extracting objects into unstructured apply configurations (#103564, @kevindelgado) [SIG API Machinery, Cluster Lifecycle, Release and Testing]

  • Introduce a feature gate DisableKubeletCloudCredentialProviders which allows disabling the in-tree kubelet credential providers.

    The DisableKubeletCloudCredentialProviders FeatureGate is currently in Alpha, which means is currently disabled by default. Once the FeatureGate moves to beta, in-tree credential providers will be disabled by default, and users will need to migrate to using external credential providers. (#102507, @ostrain) [SIG Cloud Provider]

  • Introduces a new metric: admission_webhook_request_total with the following labels: name (string) - the webhook name, type (string) - the admission type, operation (string) - the requested verb, code (int) - the HTTP status code, rejected (bool) - whether the request was rejected, namespace (string) - the namespace of the requested resource. (#103162, @rmoriar1) [SIG API Machinery and Instrumentation]

  • Kube-up.sh installs csi-proxy v1.0.1-gke.0 (#104426, @mauriciopoppe) [SIG Cloud Provider, Storage and Windows]

  • Kubeadm: add support for dry running "kubeadm join". The new flag "kubeadm join --dry-run" is similar to the existing flag for "kubeadm init/upgrade" and allows you to see what changes would be applied. (#103027, @Haleygo) [SIG Cluster Lifecycle]

  • Kubernetes is now built with Golang 1.16.7 (#104199, @cpanato) [SIG Cloud Provider, Instrumentation, Release and Testing]

  • The ServiceAccountIssuerDiscovery feature gate is removed. It reached GA in Kubernetes 1.21. (#103685, @mengjiao-liu) [SIG API Machinery and Auth]

  • Updated Cluster Autosaler to version 1.22.0. Release notes: https://github.com/kubernetes/autoscaler/releases/tag/cluster-autoscaler-1.22.0 (#104293, @x13n) [SIG Autoscaling and Cloud Provider]

  • Updates the following images to pick up CVE fixes:

    • debian to v1.9.0
    • debian-iptables to v1.6.6
    • setcap to v2.0.4 (#104142, @mengjiao-liu) [SIG API Machinery, Release and Testing]

Documentation

  • Update description of --audit-log-maxbackup to describe behavior when value = 0 (#103843, @Arkessler) [SIG API Machinery]

Bug or Regression

    1. Changes json representation for a conflicted taint to Key=Effect when a conflicted taint occurs in kubectl taint. (#104011, @manugupt1) [SIG CLI]
  • A new server run option 'shutdown-send-retry-after' has been introduced. If true the HTTP Server will continue listening until all non longrunning request(s) in flight have been drained, during this window all incoming requests will be rejected with a status code 429 and a 'Retry-After' response header. (#101257, @tkashem) [SIG API Machinery]
  • Adds Kubernetes Events to the Kubelet Graceful Shutdown feature (#101081, @rphillips) [SIG Node]
  • CA, certificate and key bundles for the generic-apiserver based servers will be reloaded immediately after the files are changed. (#104102, @tnqn) [SIG API Machinery and Testing]
  • Fix kube-apiserver metric reporting for the deprecated watch path of /api//watch/... (#104161, @wojtek-t) [SIG API Machinery and Instrumentation]
  • Fix: skip case sensitivity when checking Azure NSG rules (#104384, @feiskyer) [SIG Cloud Provider]
  • Fixed an issue which didn't append OS's environment variables with the one provided in Credential Provider Config file, which may lead to failed execution of external credential provider binary. See https://github.com/kubernetes/kubernetes/issues/102750 (#103231, @n4j) [SIG Auth and Node]
  • Fixed architecture within manifest for non amd64 etcd images. (#104116, @saschagrunert) [SIG API Machinery]
  • Fixed bug where kubectl would emit duplicate warning messages for flag names that contain an underscore and recommend using a nonexistent flag in some cases (#103852, @brianpursley) [SIG CLI and Cluster Lifecycle]
  • Graceful node shutdown, allow the actual inhibit delay to be greater than the expected inhibit delay (#103137, @wzshiming) [SIG Node]
  • Kube-apiserver: Avoids unnecessary repeated calls to admission webhooks that reject an update or delete request. (#104182, @liggitt) [SIG API Machinery]
  • Kube-proxy: delete stale conntrack UDP entries for loadbalancer ingress IP. (#104009, @aojea) [SIG Network]
  • Kubeadm: When adding an etcd peer to an existing cluster, if an error is returned indicating the peer has already been added, this is accepted and a ListMembers call is used instead to return the existing cluster. This helps diminish the exponential backoff when the first AddMember call times out, while still retaining a similar performance when the peer had already been added from a previous call. (#104134, @ihgann) [SIG Cluster Lifecycle]
  • Pass additional flags to subpath mount to avoid flakes in certain conditions (#104253, @mauriciopoppe) [SIG Storage]
  • Update Go used to build migrate script in etcd image to v1.16.7 (#104301, @serathius) [SIG API Machinery and Release]

Other (Cleanup or Flake)

  • Deprecate apiserver_longrunning_gauge and apiserver_register_watchers in 1.23.0 (#103793, @yan-lgtm) [SIG API Machinery, Cluster Lifecycle and Instrumentation]
  • Kube-apiserver: sets an upper-bound on the lifetime of idle keep-alive connections and time to read the headers of incoming requests (#103958, @liggitt) [SIG API Machinery and Node]
  • Kubeadm: external etcd endpoints passed in the ClusterConfiguration that have Unicode characters are no longer IDNA encoded (converted to Punycode). They are now just URL encoded as per Go's implementation of RFC-3986, have duplicate "/" removed from the URL paths, and passed like that directly to the kube-apiserver --etcd-servers flag. If you have etcd endpoints that have Unicode characters, it is advisable to encode them in advance with tooling that is fully IDNA compliant. If you don't do that, the Go standard library (used in k8s and etcd) would do it for you when making requests to the endpoints. (#103801, @gkarthiks) [SIG Cluster Lifecycle]
  • Kubeadm: update references to legacy artifacts locations, the 'ci-cross' prefix has been removed from the version match as it does not exist in the new 'gs://k8s-release-dev' bucket (#103813, @SataQiu) [SIG Cluster Lifecycle]
  • Migratecmd/kube-proxy/app logs to structured logging (#98913, @yxxhero) [SIG Network]
  • Surface warning when users don't set propagationPolicy for jobs while deleting (#104080, @ravisantoshgudimetla) [SIG Apps]
  • The AllowInsecureBackendProxy feature gate is removed. It reached GA in Kubernetes 1.21. (#103796, @mengjiao-liu) [SIG API Machinery]
  • The StartupProbe feature gate that is GA since v1.20 is unconditionally enabled, and can no longer be specified via the --feature-gates argument. (#104168, @ialidzhikov) [SIG Node]
  • The apiserver exposes 4 new metrics that allow to track the status of the Service CIDRs allocations: - current number of available IPs per Service CIDR - current number of used IPs per Service CIDR - total number of allocation per Service CIDR - total number of allocation errors per ServiceCIDR (#104119, @aojea) [SIG Apps, Instrumentation and Network]
  • The flag --deployment-controller-sync-period has no effect now, deprecate it and will be removed in v1.24. (#103538, @Pingan2017) [SIG Apps]
  • Troubleshooting: informers log handlers that take more than 100 milliseconds to process an object if the DeltaFIFO queue starts to grow beyond 10 elements. (#103917, @aojea) [SIG API Machinery]
  • Update cri-tools dependency to v1.22.0 (#104430, @saschagrunert) [SIG Cloud Provider and Node]
  • gcr.io/kubernetes-e2e-test-images will no longer be used in E2E / CI testing, k8s.gcr.io/e2e-test-images will be used instead. (#103724, @claudiubelu) [SIG API Machinery and Testing]

Dependencies

Added

Changed

Removed


Contributors, the CHANGELOG-1.23.md has been bootstrapped with v1.23.0-alpha.1 release notes and you may edit now as needed.



Published by your Kubernetes Release Managers.

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