Automatic merge from submit-queue (batch tested with PRs 55606, 59185, 58763, 59072, 59251). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Cleaning up loopback removal process
Handling more graceful the process of loopback removal. In case loopback device does not exist any longer, we should not fail the detachment process.
```release-note
```
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Fix a typo in pkg/controller/volume/persistentvolume/pv_controller.go
**What this PR does / why we need it**:
Fix typo (a -> an)
**Special notes for your reviewer**:
none
**Release note**:
```release-note
none
```
Automatic merge from submit-queue (batch tested with PRs 55606, 59185, 58763, 59072, 59251). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
make ipvs 'cleanupIptablesLeftovers' simplier
Since there are only four iptables chains in ipvs mode, no need to restore all chains when cleanup iptables chain created by ipvs.
**What this PR does / why we need it**:
Make ipvs `cleanupIptablesLeftovers` function much simplier.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#56689
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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kubectl: Add Terminating state to PVs
kubectl shows PV `Terminating` status, just like Pod and [PVC](https://github.com/kubernetes/kubernetes/pull/55873)
**What this PR does / why we need it**:
We will postpone PV deletion if it is bound to a PVC, see #58743, so we may keep PV waiting for deletion for a longer time than before so users should know what is going on.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
xref: https://github.com/kubernetes/community/pull/1608
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/sig cli
/sig storage
/assign @jsafrane
I tested this PR on my local host.
```
nickren@nickren-14:~/test/test$ kubectl delete -f pv.yaml
persistentvolume "task-pv-volume" deleted
nickren@nickren-14:~/test/test$ kubectl get pv
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
task-pv-volume 1Gi RWO Delete Terminating default/task-pv-claim standard 27s
nickren@nickren-14:~/test/test$ kubectl describe pv task-pv-volume
Name: task-pv-volume
Labels: type=local
Annotations: pv.kubernetes.io/bound-by-controller=yes
Finalizers: [kubernetes.io/pv-protection]
StorageClass: standard
Status: Terminating (since Thu, 01 Feb 2018 13:18:51 +0800)
Claim: default/task-pv-claim
Reclaim Policy: Delete
Access Modes: RWO
Capacity: 1Gi
Message:
Source:
Type: HostPath (bare host directory volume)
Path: /tmp/data
HostPathType:
Events: <none>
```
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Add unit test for pkg/serviceaccount.
**What this PR does / why we need it**:
Add Unit test for pkg/serviceaccount.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
None
**Special notes for your reviewer**:
None
**Release note**:
```release-note
NONE
```
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Check ErrorNotFound for IPVS in netlink.go to fix windows cross build error
**What this PR does / why we need it**:
Check IPVS unbind address ErrorNotFound in `netlink.go` which is only compiled in Linux platform to fix windows cross build error.
**Which issue(s) this PR fixes**:
Fixes#59223
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Make predicate errors more human readable
**What this PR does / why we need it**:
Make predicate errors more human readable
Thanks.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref #58546
**Special notes for your reviewer**:
**Release note**:
```release-note
```
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Perform resize of mounted volume if necessary
Under certain conditions - we must perform resize of volume even when it is mounted. This enables us to get around problem of resizing volumes used by deployments etc.
```release-note
Allow expanding mounted volumes
```
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Add NominatedNodeName field to PodStatus
**What this PR does / why we need it**:
Today, Scheduler uses an annotation called "nominated-node-name" to mark a preemptor Pod. This annotation helps scheduler know about the Pods that are destined to run on the nodes so that the resources made available by preemption is not allocated to a different Pod. In a recent discussion with @bgrant0607, we learned that we should change the annotation to a field as this field can be used by multiple schedulers and other components that may make scheduling-related decisions (descheduler, auto-scaler, kube-arbitrator, ...).
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref #57471
**Special notes for your reviewer**:
**Release note**:
```release-note
Add "nominatedNodeName" field to PodStatus. This field is set when a pod preempts other pods on the node.
```
/sig scheduling
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Ensure that the runtime mounts RO volumes read-only
**What this PR does / why we need it**:
This change makes it so that containers cannot write to secret, configMap, downwardAPI and projected volumes since the runtime will now mount them read-only. This change makes things less confusing for a user since any attempt to update a secret volume will result in an error rather than a successful change followed by a revert by the kubelet when the volume next syncs.
It also adds a feature gate `ReadOnlyAPIDataVolumes` to a provide a way to disable the new behavior in 1.10, but for 1.11, the new behavior will become non-optional.
Also, E2E tests for downwardAPI and projected volumes are updated to mount the volumes somewhere other than /etc.
**Which issue(s) this PR fixes**
Fixes#58719
**Release note**:
```release-note
Containers now mount secret, configMap, downwardAPI and projected volumes read-only. Previously,
container modifications to files in these types of volumes were temporary and reverted by the kubelet
during volume sync. Until version 1.11, setting the feature gate ReadOnlyAPIDataVolumes=false will
preserve the old behavior.
```
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fix a typo in pkg/cloudprovider/providers/azure/azure_loadbalancer.go
**What this PR does / why we need it**:
fix typo
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**:
**Release note**:
```release-note
None
```
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Add UT test TestCheckOpenStackOptsfunc
**What this PR does / why we need it**:
checkOpenStackOpts func has three case that the test case not Covered，so add it,thanks
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Ensure IP is set for Azure internal loadbalancer
**What this PR does / why we need it**:
Internal Load Balancer created and associated with availability set but no target network ip configurations on Azure. And kube-controller-manager would panic because of nil pointer dereference.
This PR ensures it is set correctly.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#59046
**Special notes for your reviewer**:
Should cherry-pick to v1.9
**Release note**:
```release-note
Ensure IP is set for Azure internal load balancer.
```
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Postpone PV deletion with finalizer when it is being used
Postpone PV deletion if it is bound to a PVC
xref: https://github.com/kubernetes/community/pull/1608
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#33355
**Special notes for your reviewer**:
**Release note**:
```release-note
Postpone PV deletion when it is being bound to a PVC
```
WIP, assign to myself first
/assign @NickrenREN
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Add V1beta1 VolumeAttachment API
**What this PR does / why we need it**:
Add V1beta1 VolumeAttachment API, co-existing with Alpha API object
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#58461
**Special notes for your reviewer**:
**Release note**:
```release-note
Add V1beta1 VolumeAttachment API, co-existing with Alpha API object
```
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Revert "fail earlier on discovery failures"
Reverts kubernetes/kubernetes#58293
#58293 breaks commands that support the `--local` flag, when there is no connection to a server.
**Release note**:
```release-note
NONE
```
cc @deads2k
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Only rotate certificates in the background
Change the Kubelet to not block until the first certs have rotated (we didn't act on it anyway) and fall back to the bootstrap cert if the most recent rotated cert is expired on startup.
The certificate manager originally had a "block on startup" rotation behavior to ensure at least one rotation happened on startup. However, since rotation may not succeed within the first time window the code was changed to simply print the error rather than return it. This meant that the blocking rotation has no purpose - it cannot cause the kubelet to fail, and it *does* block the kubelet from starting static pods before the api server becomes available.
The current block behavior causes a bootstrapped kubelet that is also set to run static pods to wait several minutes before actually launching the static pods, which means self-hosted masters using static pods have a pointless delay on startup.
Since blocking rotation has no benefit and can't actually fail startup, this commit removes the blocking behavior and simplifies the code at the same time. The goroutine for rotation now completely owns the deadline, the shouldRotate() method is removed, and the method that sets rotationDeadline now returns it. We also explicitly guard against a negative sleep interval and omit the message.
Should have no impact on bootstrapping except the removal of a long delay on startup before static pods start.
The other change is that an expired certificate from the cert manager is *not* considered a valid cert, which triggers an immediate rotation. This causes the cert manager to fall back to the original bootstrap certificate until a new certificate is issued. This allows the bootstrap certificate on masters to be "higher powered" and allow the node to function prior to initial approval, which means someone configuring the masters with a pre-generated client cert can be guaranteed that the kubelet will be able to communicate to report self-hosted static pod status, even if the first client rotation hasn't happened. This makes master self-hosting more predictable for static configuration environments.
```release-note
When using client or server certificate rotation, the Kubelet will no longer wait until the initial rotation succeeds or fails before starting static pods. This makes running self-hosted masters with rotation more predictable.
```
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add pkg/util/ipset OWNERS file
**What this PR does / why we need it**:
I initialized `pkg/util/ipset` for wraping ipset exec call and authored most of the commits.
This package is used in IPVS proxier for reducing iptables call - possibly we can use ipset in iptables proxier in the future. Because reviewing this package needs some ipset background knowledge, I am creating this OWNERS file for efficient code review. Also, I am willing to share code review burden.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/assign @brendandburns @thockin because I also added your names.
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Ignore address not exist error when unbind IPVS serivce address from dummy device
**What this PR does / why we need it**:
Ignore address not exist error when unbind IPVS serivce address from dummy device.
**Which issue(s) this PR fixes**:
Fixes#58681
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Add a feature gate ReadOnlyAPIDataVolumes to a provide a way to
disable the new behavior in 1.10, but for 1.11, the new
behavior will become non-optional.
Also, update E2E tests for downwardAPI and projected volumes
to mount the volumes somewhere other than /etc.
Automatic merge from submit-queue (batch tested with PRs 57683, 59116, 58728, 59140, 58976). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
correct typo in HorizontalPodAutoscaler status condition
I noticed that the status condition published to the HPA contains a typo: "succesfully" => "successfully"
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 59106, 58985, 59068, 59120, 59126). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix cross-build breakage after #58174
**What this PR does / why we need it**:
Fix cross-build breakage after #58174
@cblecker
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#59121
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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cloudprovider/openstack: fix bug that tries to use octavia client to query flip
**What this PR does / why we need it**:
This fixes a bug that [potentially] tries to use an Octavia client to query a floating ip. Neutron should always handle those.
**Release note**:
```release-note
cloudprovider/openstack: fix bug the tries to use octavia client to query flip
```
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Fix PodPidsLimit and ConfigTrialDuration on internal KubeletConfig type
They should both follow the convention of not being a pointer on the internal type.
This required adding a conversion function between `int64` and `*int64`. A side effect is this removes a warning in the generated code for the apps API group.
@dims
```release-note
NONE
```
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remove some unused functions in validation.go
**What this PR does / why we need it**:
remove some unused functions in validation.go
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Add support of hyperv isolation for windows containers
**What this PR does / why we need it**:
Add support of hyperv isolation for windows containers.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#58750
**Special notes for your reviewer**:
Only one container per pod is supported yet.
**Release note**:
```release-note
Windows containers now support experimental Hyper-V isolation by setting annotation `experimental.windows.kubernetes.io/isolation-type=hyperv` and feature gates HyperVContainer. Only one container per pod is supported yet.
```
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csi: Update version comparison model
**What this PR does / why we need it**:
CSI version matching needed to be updated to be able to support different patch levels during 0.x.x versions, and different minor.patch levels during >=1.x.x versions.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#58813
```release-note
NONE
```
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Let client ca post start hook use GET to check if the system namespace exists
This is a direct fix for #56761.
The original code tried to create a namespace unconditionally, it caused apiserver to fail to reboot if a webhook blocked namespaces creation.
In the long term, we should make the apiserver return 409 instead of 5xx in the case of conflicting POST, even if a webhook fails the POST.
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Fix typo and comments
**What this PR does / why we need it**:
Fix typo across the azure package.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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remove unused func in FakeConfigurator of scheduler
**What this PR does / why we need it**:
Current scheduler `Configurator` interface looks like this:
```
type Configurator interface {
GetPriorityFunctionConfigs(priorityKeys sets.String) ([]algorithm.PriorityConfig, error)
GetPriorityMetadataProducer() (algorithm.PriorityMetadataProducer, error)
GetPredicateMetadataProducer() (algorithm.PredicateMetadataProducer, error)
GetPredicates(predicateKeys sets.String) (map[string]algorithm.FitPredicate, error)
GetHardPodAffinitySymmetricWeight() int32
GetSchedulerName() string
MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue core.SchedulingQueue) func(pod *v1.Pod, err error)
// Needs to be exposed for things like integration tests where we want to make fake nodes.
GetNodeLister() corelisters.NodeLister
GetClient() clientset.Interface
GetScheduledPodLister() corelisters.PodLister
Create() (*Config, error)
CreateFromProvider(providerName string) (*Config, error)
CreateFromConfig(policy schedulerapi.Policy) (*Config, error)
CreateFromKeys(predicateKeys, priorityKeys sets.String, extenders []algorithm.SchedulerExtender) (*Config, error)
}
```
Funcs `ResponsibleForPod` and `Run` once existed have been removed, so the funcs in `FakeConfigurator` should be removed accordingly.
**Special notes for your reviewer**:
/kind cleanup
/sig scheduling
**Release note**:
```release-note
NONE
```
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