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kubernetes/CHANGELOG/CHANGELOG-1.21.md
pacoxu ca2033db8d fix all grammer and speel issues in releases of 20210113 
Signed-off-by: pacoxu <paco.xu@daocloud.io>
2021-01-27 17:15:51 +08:00

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v1.21.0-alpha.2

Downloads for v1.21.0-alpha.2

Source Code

filename sha512 hash
kubernetes.tar.gz 6836f6c8514253fe0831fd171fc4ed92eb6d9a773491c8dc82b90d171a1b10076bd6bfaea56ec1e199c5f46c273265bdb9f174f0b2d99c5af1de4c99b862329e
kubernetes-src.tar.gz d137694804741a05ab09e5f9a418448b66aba0146c028eafce61bcd9d7c276521e345ce9223ffbc703e8172041d58dfc56a3242a4df3686f24905a4541fcd306

Client binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz 9478b047a97717953f365c13a098feb7e3cb30a3df22e1b82aa945f2208dcc5cb90afc441ba059a3ae7aafb4ee000ec3a52dc65a8c043a5ac7255a391c875330
kubernetes-client-linux-386.tar.gz 44c8dd4b1ddfc256d35786c8abf45b0eb5f0794f5e310d2efc865748adddc50e8bf38aa71295ae8a82884cb65f2e0b9b0737b000f96fd8f2d5c19971d7c4d8e8
kubernetes-client-linux-amd64.tar.gz e1291989892769de6b978c17b8612b94da6f3b735a4d895100af622ca9ebb968c75548afea7ab00445869625dd0da3afec979e333afbb445805f5d31c1c13cc7
kubernetes-client-linux-arm.tar.gz 3c4bcb8cbe73822d68a2f62553a364e20bec56b638c71d0f58679b4f4b277d809142346f18506914e694f6122a3e0f767eab20b7b1c4dbb79e4c5089981ae0f1
kubernetes-client-linux-arm64.tar.gz 9389974a790268522e187f5ba5237f3ee4684118c7db76bc3d4164de71d8208702747ec333b204c7a78073ab42553cbbce13a1883fab4fec617e093b05fab332
kubernetes-client-linux-ppc64le.tar.gz 63399e53a083b5af3816c28ff162c9de6b64c75da4647f0d6bbaf97afdf896823cb1e556f2abac75c6516072293026d3ff9f30676fd75143ac6ca3f4d21f4327
kubernetes-client-linux-s390x.tar.gz 50898f197a9d923971ff9046c9f02779b57f7b3cea7da02f3ea9bab8c08d65a9c4a7531a2470fa14783460f52111a52b96ebf916c0a1d8215b4070e4e861c1b0
kubernetes-client-windows-386.tar.gz a7743e839e1aa19f5ee20b6ee5000ac8ef9e624ac5be63bb574fad6992e4b9167193ed07e03c9bc524e88bfeed66c95341a38a03bff1b10bc9910345f33019f0
kubernetes-client-windows-amd64.tar.gz 5f1d19c230bd3542866d16051808d184e9dd3e2f8c001ed4cee7b5df91f872380c2bf56a3add8c9413ead9d8c369efce2bcab4412174df9b823d3592677bf74e

Server binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz ef2cac10febde231aeb6f131e589450c560eeaab8046b49504127a091cddc17bc518c2ad56894a6a033033ab6fc6e121b1cc23691683bc36f45fe6b1dd8e0510
kubernetes-server-linux-arm.tar.gz d11c9730307f08e80b2b8a7c64c3e9a9e43c622002e377dfe3a386f4541e24adc79a199a6f280f40298bb36793194fd44ed45defe8a3ee54a9cb1386bc26e905
kubernetes-server-linux-arm64.tar.gz 28f8c32bf98ee1add7edf5d341c3bac1afc0085f90dcbbfb8b27a92087f13e2b53c327c8935ee29bf1dc3160655b32bbe3e29d5741a8124a3848a777e7d42933
kubernetes-server-linux-ppc64le.tar.gz 99ae8d44b0de3518c27fa8bbddd2ecf053dfb789fb9d65f8a4ecf4c8331cf63d2f09a41c2bcd5573247d5f66a1b2e51944379df1715017d920d521b98589508a
kubernetes-server-linux-s390x.tar.gz f8c0e954a2dfc6845614488dadeed069cc7f3f08e33c351d7a77c6ef97867af590932e8576d12998a820a0e4d35d2eee797c764e2810f09ab1e90a5acaeaad33

Node binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz c5456d50bfbe0d75fb150b3662ed7468a0abd3970792c447824f326894382c47bbd3a2cc5a290f691c8c09585ff6fe505ab86b4aff2b7e5ccee11b5e6354ae6c
kubernetes-node-linux-arm.tar.gz 335b5cd8672e053302fd94d932fb2fa2e48eeeb1799650b3f93acdfa635e03a8453637569ab710c46885c8317759f4c60aaaf24dca9817d9fa47500fe4a3ca53
kubernetes-node-linux-arm64.tar.gz 3ee87dbeed8ace9351ac89bdaf7274dd10b4faec3ceba0825f690ec7a2bb7eb7c634274a1065a0939eec8ff3e43f72385f058f4ec141841550109e775bc5eff9
kubernetes-node-linux-ppc64le.tar.gz 6956f965b8d719b164214ec9195fdb2c776b907fe6d2c524082f00c27872a73475927fd7d2a994045ce78f6ad2aa5aeaf1eb5514df1810d2cfe342fd4e5ce4a1
kubernetes-node-linux-s390x.tar.gz 3b643aa905c709c57083c28dd9e8ffd88cb64466cda1499da7fc54176b775003e08b9c7a07b0964064df67c8142f6f1e6c13bfc261bd65fb064049920bfa57d0
kubernetes-node-windows-amd64.tar.gz b2e6d6fb0091f2541f9925018c2bdbb0138a95bab06b4c6b38abf4b7144b2575422263b78fb3c6fd09e76d90a25a8d35a6d4720dc169794d42c95aa22ecc6d5f

Changelog since v1.21.0-alpha.1

Urgent Upgrade Notes

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

  • Remove storage metrics storage_operation_errors_total, since we already have storage_operation_status_count.And add new field status for storage_operation_duration_seconds, so that we can know about all status storage operation latency. (#98332, @JornShen) [SIG Instrumentation and Storage]

Changes by Kind

Deprecation

  • Remove the TokenRequest and TokenRequestProjection feature gates (#97148, @wawa0210) [SIG Node]
  • Removing experimental windows container hyper-v support with Docker (#97141, @wawa0210) [SIG Node and Windows]
  • The export query parameter (inconsistently supported by API resources and deprecated in v1.14) is fully removed. Requests setting this query parameter will now receive a 400 status response. (#98312, @deads2k) [SIG API Machinery, Auth and Testing]

API Change

  • Enable SPDY pings to keep connections alive, so that kubectl exec and kubectl port-forward won't be interrupted. (#97083, @knight42) [SIG API Machinery and CLI]

Documentation

  • Official support to build kubernetes with docker-machine / remote docker is removed. This change does not affect building kubernetes with docker locally. (#97935, @adeniyistephen) [SIG Release and Testing]
  • Set kubelet option --volume-stats-agg-period to negative value to disable volume calculations. (#96675, @pacoxu) [SIG Node]

Bug or Regression

  • Clean ReplicaSet by revision instead of creation timestamp in deployment controller (#97407, @waynepeking348) [SIG Apps]
  • Ensure that client-go's EventBroadcaster is safe (non-racy) during shutdown. (#95664, @DirectXMan12) [SIG API Machinery]
  • Fix azure file migration issue (#97877, @andyzhangx) [SIG Auth, Cloud Provider and Storage]
  • Fix kubelet from panic after getting the wrong signal (#98200, @wzshiming) [SIG Node]
  • Fix repeatedly acquire the inhibit lock (#98088, @wzshiming) [SIG Node]
  • Fixed a bug that the kubelet cannot start on BtrfS. (#98042, @gjkim42) [SIG Node]
  • Fixed an issue with garbage collection failing to clean up namespaced children of an object also referenced incorrectly by cluster-scoped children (#98068, @liggitt) [SIG API Machinery and Apps]
  • Fixed no effect namespace when exposing deployment with --dry-run=client. (#97492, @masap) [SIG CLI]
  • Fixing a bug where a failed node may not have the NoExecute taint set correctly (#96876, @howieyuen) [SIG Apps and Node]
  • Indentation of Resource Quota block in kubectl describe namespaces output gets correct. (#97946, @dty1er) [SIG CLI]
  • KUBECTL_EXTERNAL_DIFF now accepts equal sign for additional parameters. (#98158, @dougsland) [SIG CLI]
  • Kubeadm: fix a bug where "kubeadm join" would not properly handle missing names for existing etcd members. (#97372, @ihgann) [SIG Cluster Lifecycle]
  • Kubelet should ignore cgroup driver check on Windows node. (#97764, @pacoxu) [SIG Node and Windows]
  • Make podTopologyHints protected by lock (#95111, @choury) [SIG Node]
  • Readjust kubelet_containers_per_pod_count bucket (#98169, @wawa0210) [SIG Instrumentation and Node]
  • Scores from InterPodAffinity have stronger differentiation. (#98096, @leileiwan) [SIG Scheduling]
  • Specifying the KUBE_TEST_REPO environment variable when e2e tests are executed will instruct the test infrastructure to load that image from a location within the specified repo, using a predefined pattern. (#93510, @smarterclayton) [SIG Testing]
  • Static pods will be deleted gracefully. (#98103, @gjkim42) [SIG Node]
  • Use network.Interface.VirtualMachine.ID to get the binded VM Skip standalone VM when reconciling LoadBalancer (#97635, @nilo19) [SIG Cloud Provider]

Other (Cleanup or Flake)

  • Kubeadm: change the default image repository for CI images from 'gcr.io/kubernetes-ci-images' to 'gcr.io/k8s-staging-ci-images' (#97087, @SataQiu) [SIG Cluster Lifecycle]
  • Migrate generic_scheduler.go and types.go to structured logging. (#98134, @tanjing2020) [SIG Scheduling]
  • Migrate proxy/winuserspace/proxier.go logs to structured logging (#97941, @JornShen) [SIG Network]
  • Migrate staging/src/k8s.io/apiserver/pkg/audit/policy/reader.go logs to structured logging. (#98252, @lala123912) [SIG API Machinery and Auth]
  • Migrate staging\src\k8s.io\apiserver\pkg\endpoints logs to structured logging (#98093, @lala123912) [SIG API Machinery]
  • Node (#96552, @pandaamanda) [SIG Apps, Cloud Provider, Node and Scheduling]
  • The kubectl alpha debug command was scheduled to be removed in v1.21. (#98111, @pandaamanda) [SIG CLI]
  • Update cri-tools to v1.20.0 (#97967, @rajibmitra) [SIG Cloud Provider]
  • Windows nodes on GCE will take longer to start due to dependencies installed at node creation time. (#98284, @pjh) [SIG Cloud Provider]

Dependencies

Added

Nothing has changed.

Changed

Removed

Nothing has changed.

v1.21.0-alpha.1

Downloads for v1.21.0-alpha.1

Source Code

filename sha512 hash
kubernetes.tar.gz b2bacd5c3fc9f829e6269b7d2006b0c6e464ff848bb0a2a8f2fe52ad2d7c4438f099bd8be847d8d49ac6e4087f4d74d5c3a967acd798e0b0cb4d7a2bdb122997
kubernetes-src.tar.gz 518ac5acbcf23902fb1b902b69dbf3e86deca5d8a9b5f57488a15f185176d5a109558f3e4df062366af874eca1bcd61751ee8098b0beb9bcdc025d9a1c9be693

Client binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz eaa7aea84a5ed954df5ec710cbeb6ec88b46465f43cb3d09aabe2f714b84a050a50bf5736089f09dbf1090f2e19b44823d656c917e3c8c877630756c3026f2b6
kubernetes-client-linux-386.tar.gz 47f74b8d46ad1779c5b0b5f15aa15d5513a504eeb6f53db4201fbe9ff8956cb986b7c1b0e9d50a99f78e9e2a7f304f3fc1cc2fa239296d9a0dd408eb6069e975
kubernetes-client-linux-amd64.tar.gz 1a148e282628b008c8abd03dd12ec177ced17584b5115d92cd33dd251e607097d42e9da8c7089bd947134b900f85eb75a4740b6a5dd580c105455b843559df39
kubernetes-client-linux-arm.tar.gz d13d2feb73bd032dc01f7e2955b98d8215a39fe1107d037a73fa1f7d06c3b93ebaa53ed4952d845c64454ef3cca533edb97132d234d50b6fb3bcbd8a8ad990eb
kubernetes-client-linux-arm64.tar.gz 8252105a17b09a78e9ad2c024e4e401a69764ac869708a071aaa06f81714c17b9e7c5b2eb8efde33f24d0b59f75c5da607d5e1e72bdf12adfbb8c829205cd1c1
kubernetes-client-linux-ppc64le.tar.gz 297a9082df4988389dc4be30eb636dff49f36f5d87047bab44745884e610f46a17ae3a08401e2cab155b7c439f38057bfd8288418215f7dd3bf6a49dbe61ea0e
kubernetes-client-linux-s390x.tar.gz 04c06490dd17cd5dccfd92bafa14acf64280ceaea370d9635f23aeb6984d1beae6d0d1d1506edc6f30f927deeb149b989d3e482b47fbe74008b371f629656e79
kubernetes-client-windows-386.tar.gz ec6e9e87a7d685f8751d7e58f24f417753cff5554a7229218cb3a08195d461b2e12409344950228e9fbbc92a8a06d35dd86242da6ff1e6652ec1fae0365a88c1
kubernetes-client-windows-amd64.tar.gz 51039e6221d3126b5d15e797002ae01d4f0b10789c5d2056532f27ef13f35c5a2e51be27764fda68e8303219963126559023aed9421313bec275c0827fbcaf8a

Server binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 4edf820930c88716263560275e3bd7fadb8dc3700b9f8e1d266562e356e0abeb1a913f536377dab91218e3940b447d6bf1da343b85da25c2256dc4dcde5798dd
kubernetes-server-linux-arm.tar.gz b15213e53a8ab4ba512ce6ef9ad42dd197d419c61615cd23de344227fd846c90448d8f3d98e555b63ba5b565afa627cca6b7e3990ebbbba359c96f2391302df1
kubernetes-server-linux-arm64.tar.gz 5be29cca9a9358fc68351ee63e99d57dc2ffce6e42fc3345753dbbf7542ff2d770c4852424158540435fa6e097ce3afa9b13affc40c8b3b69fe8406798f8068f
kubernetes-server-linux-ppc64le.tar.gz 89fd99ab9ce85db0b94b86709932105efc883cc93959cf7ea9a39e79a4acea23064d7010eeb577450cccabe521c04b7ba47bbec212ed37edeed7cb04bad34518
kubernetes-server-linux-s390x.tar.gz 2fbc30862c77d247aa8d96ab9d1a144599505287b0033a3a2d0988958e7bb2f2e8b67f52c1fec74b4ec47d74ba22cd0f6cb5c4228acbaa72b1678d5fece0254d

Node binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 95658d321a0a371c0900b401d1469d96915310afbc4e4b9b11f031438bb188513b57d5a60b5316c3b0c18f541cda6f0ac42f59a76495f8abc743a067115da23a
kubernetes-node-linux-arm.tar.gz f375acfb42aad6c65b833c270e7e3acfe9cd1d6b2441c33874e77faae263957f7acfe86f1b71f14298118595e4cc6952c7dea0c832f7f2e72428336f13034362
kubernetes-node-linux-arm64.tar.gz 43b4baccd58d74e7f48d096ab92f2bbbcdf47e30e7a3d2b56c6cc9f90002cfd4fefaac894f69bd5f9f4dbdb09a4749a77eb76b1b97d91746bd96fe94457879ab
kubernetes-node-linux-ppc64le.tar.gz e7962b522c6c7c14b9ee4c1d254d8bdd9846b2b33b0443fc9c4a41be6c40e5e6981798b720f0148f36263d5cc45d5a2bb1dd2f9ab2838e3d002e45b9bddeb7bf
kubernetes-node-linux-s390x.tar.gz 49ebc97f01829e65f7de15be00b882513c44782eaadd1b1825a227e3bd3c73cc6aca8345af05b303d8c43aa2cb944a069755b2709effb8cc22eae621d25d4ba5
kubernetes-node-windows-amd64.tar.gz 6e0fd7724b09e6befbcb53b33574e97f2db089f2eee4bbf391abb7f043103a5e6e32e3014c0531b88f9a3ca88887bbc68625752c44326f98dd53adb3a6d1bed8

Changelog since v1.20.0

Urgent Upgrade Notes

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

  • Kube-proxy's IPVS proxy mode no longer sets the net.ipv4.conf.all.route_localnet sysctl parameter. Nodes upgrading will have net.ipv4.conf.all.route_localnet set to 1 but new nodes will inherit the system default (usually 0). If you relied on any behavior requiring net.ipv4.conf.all.route_localnet, you must set ensure it is enabled as kube-proxy will no longer set it automatically. This change helps to further mitigate CVE-2020-8558. (#92938, @lbernail) [SIG Network and Release]

Changes by Kind

Deprecation

  • Deprecate the topologyKeys field in Service. This capability will be replaced with upcoming work around Topology Aware Subsetting and Service Internal Traffic Policy. (#96736, @andrewsykim) [SIG Apps]
  • Kubeadm: deprecated command "alpha selfhosting pivot" is removed now. (#97627, @knight42) [SIG Cluster Lifecycle]
  • Kubeadm: graduate the command kubeadm alpha kubeconfig user to kubeadm kubeconfig user. The kubeadm alpha kubeconfig user command is deprecated now. (#97583, @knight42) [SIG Cluster Lifecycle]
  • Kubeadm: the "kubeadm alpha certs" command is removed now, please use "kubeadm certs" instead. (#97706, @knight42) [SIG Cluster Lifecycle]
  • Remove the deprecated metrics "scheduling_algorithm_preemption_evaluation_seconds" and "binding_duration_seconds", suggest to use "scheduler_framework_extension_point_duration_seconds" instead. (#96447, @chendave) [SIG Cluster Lifecycle, Instrumentation, Scheduling and Testing]
  • The PodSecurityPolicy API is deprecated in 1.21, and will no longer be served starting in 1.25. (#97171, @deads2k) [SIG Auth and CLI]

API Change

  • Change the APIVersion proto name of BoundObjectRef from aPIVersion to apiVersion. (#97379, @kebe7jun) [SIG Auth]
  • Promote Immutable Secrets/ConfigMaps feature to Stable. This allows to set Immutable field in Secrets or ConfigMap object to mark their contents as immutable. (#97615, @wojtek-t) [SIG Apps, Architecture, Node and Testing]

Feature

  • Add flag --lease-max-object-size and metric etcd_lease_object_counts for kube-apiserver to config and observe max objects attached to a single etcd lease. (#97480, @lingsamuel) [SIG API Machinery, Instrumentation and Scalability]
  • Add flag --lease-reuse-duration-seconds for kube-apiserver to config etcd lease reuse duration. (#97009, @lingsamuel) [SIG API Machinery and Scalability]
  • Adds the ability to pass --strict-transport-security-directives to the kube-apiserver to set the HSTS header appropriately. Be sure you understand the consequences to browsers before setting this field. (#96502, @249043822) [SIG Auth]
  • Kubeadm now includes CoreDNS v1.8.0. (#96429, @rajansandeep) [SIG Cluster Lifecycle]
  • Kubeadm: add support for certificate chain validation. When using kubeadm in external CA mode, this allows an intermediate CA to be used to sign the certificates. The intermediate CA certificate must be appended to each signed certificate for this to work correctly. (#97266, @robbiemcmichael) [SIG Cluster Lifecycle]
  • Kubeadm: amend the node kernel validation to treat CGROUP_PIDS, FAIR_GROUP_SCHED as required and CFS_BANDWIDTH, CGROUP_HUGETLB as optional (#96378, @neolit123) [SIG Cluster Lifecycle and Node]
  • The Kubernetes pause image manifest list now contains an image for Windows Server 20H2. (#97322, @claudiubelu) [SIG Windows]
  • The apimachinery util/net function used to detect the bind address ResolveBindAddress() takes into consideration global ip addresses on loopback interfaces when: - the host has default routes - there are no global IPs on those interfaces. in order to support more complex network scenarios like BGP Unnumbered RFC 5549 (#95790, @aojea) [SIG Network]

Bug or Regression

  • Changelog

    General

    • Fix priority expander falling back to a random choice even though there is a higher priority option to choose
    • Clone kubernetes/kubernetes in update-vendor.sh shallowly, instead of fetching all revisions
    • Speed up binpacking by reducing the number of PreFilter calls (call once per pod instead of #pods*#nodes times)
    • Speed up finding unneeded nodes by 5x+ in very large clusters by reducing the number of PreFilter calls
    • Expose --max-nodes-total as a metric
    • Errors in IncreaseSize changed from type apiError to cloudProviderError
    • Make build-in-docker and test-in-docker work on Linux systems with SELinux enabled
    • Fix an error where existing nodes were not considered as destinations while finding place for pods in scale-down simulations
    • Remove redundant log lines and reduce severity around parsing kubeEnv
    • Don't treat nodes created by virtual kubelet as nodes from non-autoscaled node groups
    • Remove redundant logging around calculating node utilization
    • Add configurable --network and --rm flags for docker in Makefile
    • Subtract DaemonSet pods' requests from node allocatable in the denominator while computing node utilization
    • Include taints by condition when determining if a node is unready/still starting
    • Fix update-vendor.sh to work on OSX and zsh
    • Add best-effort eviction for DaemonSet pods while scaling down non-empty nodes
    • Add build support for ARM64

    AliCloud

    • Add missing daemonsets and replicasets to ALI example cluster role

    Apache CloudStack

    • Add support for Apache CloudStack

    AWS

    • Regenerate list of EC2 instances
    • Fix pricing endpoint in AWS China Region

    Azure

    • Add optional jitter on initial VMSS VM cache refresh, keep the refreshes spread over time
    • Serve from cache for the whole period of ongoing throttling
    • Fix unwanted VMSS VMs cache invalidations
    • Enforce setting the number of retries if cloud provider backoff is enabled
    • Don't update capacity if VMSS provisioning state is updating
    • Support allocatable resources overrides via VMSS tags
    • Add missing stable labels in template nodes
    • Proactively set instance status to deleting on node deletions

    Cluster API

    • Migrate interaction with the API from using internal types to using Unstructured
    • Improve tests to work better with constrained resources
    • Add support for node autodiscovery
    • Add support for --cloud-config
    • Update group identifier to use for Cluster API annotations

    Exoscale

    • Add support for Exoscale

    GCE

    • Decrease the number of GCE Read Requests made while deleting nodes
    • Base pricing of custom instances on their instance family type
    • Add pricing information for missing machine types
    • Add pricing information for different GPU types
    • Ignore the new topology.gke.io/zone label when comparing groups
    • Add missing stable labels to template nodes

    HuaweiCloud

    • Add auto scaling group support
    • Implement node group by AS
    • Implement getting desired instance number of node group
    • Implement increasing node group size
    • Implement TemplateNodeInfo
    • Implement caching instances

    IONOS

    • Add support for IONOS

    Kubemark

    • Skip non-kubemark nodes while computing node infos for node groups.

    Magnum

    • Add Magnum support in the Cluster Autoscaler helm chart

    Packet

    • Allow empty nodepools
    • Add support for multiple nodepools
    • Add pricing support

    Image

    Image: k8s.gcr.io/autoscaling/cluster-autoscaler:v1.20.0 (#97011, @towca) [SIG Cloud Provider]

  • AcceleratorStats will be available in the Summary API of kubelet when cri_stats_provider is used. (#96873, @ruiwen-zhao) [SIG Node]

  • Add limited lines to log when having tail option (#93920, @zhouya0) [SIG Node]

  • Avoid systemd-logind loading configuration warning (#97950, @wzshiming) [SIG Node]

  • Cloud-controller-manager: routes controller should not depend on --allocate-node-cidrs (#97029, @andrewsykim) [SIG Cloud Provider and Testing]

  • Copy annotations with empty value when deployment rolls back (#94858, @waynepeking348) [SIG Apps]

  • Detach volumes from vSphere nodes not tracked by attach-detach controller (#96689, @gnufied) [SIG Cloud Provider and Storage]

  • Fix kubectl label error when local=true is set. (#97440, @pandaamanda) [SIG CLI]

  • Fix Azure file share not deleted issue when the namespace is deleted (#97417, @andyzhangx) [SIG Cloud Provider and Storage]

  • Fix CVE-2020-8555 for Gluster client connections. (#97922, @liggitt) [SIG Storage]

  • Fix counting error in service/nodeport/loadbalancer quota check (#97451, @pacoxu) [SIG API Machinery, Network and Testing]

  • Fix kubectl-convert import known versions (#97754, @wzshiming) [SIG CLI and Testing]

  • Fix missing cadvisor machine metrics. (#97006, @lingsamuel) [SIG Node]

  • Fix nil VMSS name when setting service to auto mode (#97366, @nilo19) [SIG Cloud Provider]

  • Fix the panic when kubelet registers if a node object already exists with no Status.Capacity or Status.Allocatable (#95269, @SataQiu) [SIG Node]

  • Fix the regression with the slow pods termination. Before this fix pods may take an additional time to terminate - up to one minute. Reversing the change that ensured that CNI resources cleaned up when the pod is removed on API server. (#97980, @SergeyKanzhelev) [SIG Node]

  • Fix to recover CSI volumes from certain dangling attachments (#96617, @yuga711) [SIG Apps and Storage]

  • Fix: azure file latency issue for metadata-heavy workloads (#97082, @andyzhangx) [SIG Cloud Provider and Storage]

  • Fixed Cinder volume IDs on OpenStack Train (#96673, @jsafrane) [SIG Cloud Provider]

  • Fixed FibreChannel volume plugin corrupting filesystems on detach of multipath volumes. (#97013, @jsafrane) [SIG Storage]

  • Fixed a bug in kubelet that will saturate CPU utilization after containerd got restarted. (#97174, @hanlins) [SIG Node]

  • Fixed bug in CPUManager with race on container map access (#97427, @klueska) [SIG Node]

  • Fixed cleanup of block devices when /var/lib/kubelet is a symlink. (#96889, @jsafrane) [SIG Storage]

  • GCE Internal LoadBalancer sync loop will now release the ILB IP address upon sync failure. An error in ILB forwarding rule creation will no longer leak IP addresses. (#97740, @prameshj) [SIG Cloud Provider and Network]

  • Ignore update pod with no new images in alwaysPullImages admission controller (#96668, @pacoxu) [SIG Apps, Auth and Node]

  • Kubeadm now installs version 3.4.13 of etcd when creating a cluster with v1.19 (#97244, @pacoxu) [SIG Cluster Lifecycle]

  • Kubeadm: avoid detection of the container runtime for commands that do not need it (#97625, @pacoxu) [SIG Cluster Lifecycle]

  • Kubeadm: fix a bug in the host memory detection code on 32bit Linux platforms (#97403, @abelbarrera15) [SIG Cluster Lifecycle]

  • Kubeadm: fix a bug where "kubeadm upgrade" commands can fail if CoreDNS v1.8.0 is installed. (#97919, @neolit123) [SIG Cluster Lifecycle]

  • Performance regression #97685 has been fixed. (#97860, @MikeSpreitzer) [SIG API Machinery]

  • Remove deprecated --cleanup-ipvs flag of kube-proxy, and make --cleanup flag always to flush IPVS (#97336, @maaoBit) [SIG Network]

  • The current version of the container image publicly exposed IP serving a /metrics endpoint to the Internet. The new version of the container image serves /metrics endpoint on a different port. (#97621, @vbannai) [SIG Cloud Provider]

  • Use force unmount for NFS volumes if regular mount fails after 1 minute timeout (#96844, @gnufied) [SIG Storage]

  • Users will see increase in time for deletion of pods and also guarantee that removal of pod from api server would mean deletion of all the resources from container runtime. (#92817, @kmala) [SIG Node]

  • Using exec auth plugins with kubectl no longer results in warnings about constructing many client instances from the same exec auth config. (#97857, @liggitt) [SIG API Machinery and Auth]

  • Warning about using a deprecated volume plugin is logged only once. (#96751, @jsafrane) [SIG Storage]

Other (Cleanup or Flake)

  • Bump github.com/Azure/go-autorest/autorest to v0.11.12 (#97033, @patrickshan) [SIG API Machinery, CLI, Cloud Provider and Cluster Lifecycle]
  • Delete deprecated mixed protocol annotation (#97096, @nilo19) [SIG Cloud Provider]
  • Kube-proxy: Traffic from the cluster directed to ExternalIPs is always sent directly to the Service. (#96296, @aojea) [SIG Network and Testing]
  • Kubeadm: fix a whitespace issue in the output of the "kubeadm join" command shown as the output of "kubeadm init" and "kubeadm token create --print-join-command" (#97413, @SataQiu) [SIG Cluster Lifecycle]
  • Kubeadm: improve the error messaging when the user provides an invalid discovery token CA certificate hash. (#97290, @neolit123) [SIG Cluster Lifecycle]
  • Migrate log messages in pkg/scheduler/{scheduler.go,factory.go} to structured logging (#97509, @aldudko) [SIG Scheduling]
  • Migrate proxy/iptables/proxier.go logs to structured logging (#97678, @JornShen) [SIG Network]
  • Migrate some scheduler log messages to structured logging (#97349, @aldudko) [SIG Scheduling]
  • NONE (#97167, @geegeea) [SIG Node]
  • NetworkPolicy validation framework optimizations for rapidly verifying CNI's work correctly across several pods and namespaces (#91592, @jayunit100) [SIG Network, Storage and Testing]
  • Official support to build kubernetes with docker-machine / remote docker is removed. This change does not affect building kubernetes with docker locally. (#97618, @jherrera123) [SIG Release and Testing]
  • Scheduler plugin validation now provides all errors detected instead of the first one. (#96745, @lingsamuel) [SIG Node, Scheduling and Testing]
  • Storage related e2e testsuite redesign & cleanup (#96573, @Jiawei0227) [SIG Storage and Testing]
  • The OIDC authenticator no longer waits 10 seconds before attempting to fetch the metadata required to verify tokens. (#97693, @enj) [SIG API Machinery and Auth]
  • The AttachVolumeLimit feature gate that is GA since v1.17 is now removed. (#96539, @ialidzhikov) [SIG Storage]
  • The CSINodeInfo feature gate that is GA since v1.17 is unconditionally enabled, and can no longer be specified via the --feature-gates argument. (#96561, @ialidzhikov) [SIG Apps, Auth, Scheduling, Storage and Testing]
  • The deprecated feature gates RotateKubeletClientCertificate, AttachVolumeLimit, VolumePVCDataSource and EvenPodsSpread are now unconditionally enabled and can no longer be specified in component invocations. (#97306, @gavinfish) [SIG Node, Scheduling and Storage]
  • ServiceNodeExclusion, NodeDisruptionExclusion and LegacyNodeRoleBehavior(locked to false) features have been promoted to GA. To prevent control plane nodes being added to load balancers automatically, upgrade users need to add "node.kubernetes.io/exclude-from-external-load-balancers" label to control plane nodes. (#97543, @pacoxu) [SIG API Machinery, Apps, Cloud Provider and Network]

Uncategorized

  • Adding Brazilian Portuguese translation for kubectl (#61595, @cpanato) [SIG CLI]

Dependencies

Added

Nothing has changed.

Changed

Removed

  • rsc.io/quote/v3: v3.1.0
  • rsc.io/sampler: v1.3.0