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Promote ShareProcessNamespace to beta
**What this PR does / why we need it**: The ability to configure PID namespace sharing per-pod was added as an alpha feature in 1.10. This promotes the feature to beta and makes the feature available by default.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
WIP #1615
**Special notes for your reviewer**:
/assign @yujuhong
**Release note**:
```release-note
The PodShareProcessNamespace feature to configure PID namespace sharing within a pod has been promoted to beta.
```
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AzureDisk: Parse zoned first before using it
**What this PR does / why we need it**:
`zoned` should be parsed first before using.
**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 https://github.com/kubernetes/kubernetes/pull/67121#discussion_r208639436
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/cc @ddebroy @khenidak @andyzhangx
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Adding unit tests to methods of pod's format
What this PR does / why we need it:
Add unit test cases, thank you!
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Update `pkg/cloudprovider/providers/azure/OWNERS`
* Remove Jaice
* Remove Cole
* Add Stephen as reviewer
Signed-off-by: Stephen Augustus <foo@agst.us>
**Release note**:
```release-note
NONE
```
/sig azure
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Cloud Provider Zones doc fixups
**What this PR does / why we need it**:
A few godoc fixups for Cloud Provider Zones.
```release-note
NONE
```
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`kubectl create {clusterrole,role}`'s `--resources` flag support asterisk to specify all resources
**What this PR does / why we need it**:
Currently `kubectl create (cluster)role`'s `--resources` flag does not support asterisk to specify all resources.
```
# kubectl create clusterrole superrole --verb=get --resource=*
the server doesn't have a resource type "*"
```
As an user, we create a role with `--resources=*` sometimes, so this PR supports it.
Fixes https://github.com/kubernetes/kubernetes/issues/62989
**Special notes for your reviewer**:
- This patch does not support `--resource=*` for `SpecialVerbs` - e.g `kubectl create role foo --verb=impersonate --resource=*`, because current code also does not support `kubectl create role foo --verb=impersonate --resource=users,pods`
**Release note**:
```release-note
`kubectl create {clusterrole,role}`'s `--resources` flag supports asterisk to specify all resources.
```
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Rename KubeConfigFile to Kubeconfig in ClientConnectionConfiguration
**What this PR does / why we need it**:
As discussed with @liggitt we should make the field name and JSON tag consistent, and we concluded `Kubeconfig` and `kubeconfig` is the most consistent naming we have (e.g. wrt `--kubeconfig`), so we're going with that naming for the `ClientConnectionConfiguration` struct. Also, this preserves backwards-compat wrt existing serialized configuration. This fixes the API violation.
**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: https://github.com/kubernetes/community/pull/2354
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/assign @liggitt @sttts
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Add DynamicProvisioningScheduling and VolumeScheduling support for Azure managed disks
**What this PR does / why we need it**:
Continue of [Azure Availability Zone feature](https://github.com/kubernetes/features/issues/586).
This PR adds `VolumeScheduling` and `DynamicProvisioningScheduling` support to Azure managed disks.
When feature gate `VolumeScheduling` disabled, no NodeAffinity set for PV:
```yaml
kubectl describe pv
Name: pvc-d30dad05-9ad8-11e8-94f2-000d3a07de8c
Labels: failure-domain.beta.kubernetes.io/region=southeastasia
failure-domain.beta.kubernetes.io/zone=southeastasia-2
Annotations: pv.kubernetes.io/bound-by-controller=yes
pv.kubernetes.io/provisioned-by=kubernetes.io/azure-disk
volumehelper.VolumeDynamicallyCreatedByKey=azure-disk-dynamic-provisioner
Finalizers: [kubernetes.io/pv-protection]
StorageClass: default
Status: Bound
Claim: default/pvc-azuredisk
Reclaim Policy: Delete
Access Modes: RWO
Capacity: 5Gi
Node Affinity:
Required Terms:
Term 0: failure-domain.beta.kubernetes.io/region in [southeastasia]
failure-domain.beta.kubernetes.io/zone in [southeastasia-2]
Message:
Source:
Type: AzureDisk (an Azure Data Disk mount on the host and bind mount to the pod)
DiskName: k8s-5b3d7b8f-dynamic-pvc-d30dad05-9ad8-11e8-94f2-000d3a07de8c
DiskURI: /subscriptions/<subscription-id>/resourceGroups/<rg-name>/providers/Microsoft.Compute/disks/k8s-5b3d7b8f-dynamic-pvc-d30dad05-9ad8-11e8-94f2-000d3a07de8c
Kind: Managed
FSType:
CachingMode: None
ReadOnly: false
Events: <none>
```
When feature gate `VolumeScheduling` enabled, NodeAffinity will be populated for PV:
```yaml
kubectl describe pv
Name: pvc-0284337b-9ada-11e8-a7f6-000d3a07de8c
Labels: failure-domain.beta.kubernetes.io/region=southeastasia
failure-domain.beta.kubernetes.io/zone=southeastasia-2
Annotations: pv.kubernetes.io/bound-by-controller=yes
pv.kubernetes.io/provisioned-by=kubernetes.io/azure-disk
volumehelper.VolumeDynamicallyCreatedByKey=azure-disk-dynamic-provisioner
Finalizers: [kubernetes.io/pv-protection]
StorageClass: default
Status: Bound
Claim: default/pvc-azuredisk
Reclaim Policy: Delete
Access Modes: RWO
Capacity: 5Gi
Node Affinity:
Required Terms:
Term 0: failure-domain.beta.kubernetes.io/region in [southeastasia]
failure-domain.beta.kubernetes.io/zone in [southeastasia-2]
Message:
Source:
Type: AzureDisk (an Azure Data Disk mount on the host and bind mount to the pod)
DiskName: k8s-5b3d7b8f-dynamic-pvc-0284337b-9ada-11e8-a7f6-000d3a07de8c
DiskURI: /subscriptions/<subscription-id>/resourceGroups/<rg-name>/providers/Microsoft.Compute/disks/k8s-5b3d7b8f-dynamic-pvc-0284337b-9ada-11e8-a7f6-000d3a07de8c
Kind: Managed
FSType:
CachingMode: None
ReadOnly: false
Events: <none>
```
When both `VolumeScheduling` and `DynamicProvisioningScheduling` are enabled, storage class also supports `allowedTopologies` and `volumeBindingMode: WaitForFirstConsumer` for volume topology aware dynamic provisioning:
```yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
annotations:
name: managed-disk-dynamic
parameters:
cachingmode: None
kind: Managed
storageaccounttype: Standard_LRS
provisioner: kubernetes.io/azure-disk
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer
allowedTopologies:
- matchLabelExpressions:
- key: failure-domain.beta.kubernetes.io/zone
values:
- southeastasia-2
- southeastasia-1
```
**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
DynamicProvisioningScheduling and VolumeScheduling is not supported for Azure managed disks. Feature gates DynamicProvisioningScheduling and VolumeScheduling should be enabled before using this feature.
```
/kind feature
/sig azure
/cc @brendandburns @khenidak @andyzhangx
/cc @ddebroy @msau42 @justaugustus
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Get load balancer name per provider
**What this PR does / why we need it**:
GetLoadBalancerName() should be implemented per cloud provider as opposed to one neutral implementation.
This PR will address this by moving `cloudprovider.GetLoadBalancerName()` to the `LoadBalancer interface` and then provide an implementation for each cloud provider, while maintaining previously expected functionality.
**Which issue(s) this PR fixes**:
Fixes [#43173](https://github.com/kubernetes/kubernetes/issues/43173)
**Special notes for your reviewer**:
This is a work in progress. Looking for feedback as I work on this, from any interested parties.
**Release note**:
```release-note
NONE
```
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refuse serviceaccount projection volume request when pod has no servceaccount bounded
**What this PR does / why we need it**:
Currently, if user starts a cluster with ServiceAccount admission plugin disabled, then creates a Pod
like this:
```
kind: Pod
apiVersion: v1
metadata:
labels:
run: nginx
name: busybox2
spec:
containers:
- image: gcr.io/google-containers/nginx
name: nginx
volumeMounts:
- mountPath: /var/run/secrets/tokens
name: token
- image: ubuntu
name: ttt
volumeMounts:
- mountPath: /var/run/secrets/tokens
name: token
command: [ "/bin/bash", "-c", "--" ]
args: [ "while true; do sleep 30; done;" ]
volumes:
- name: token
projected:
sources:
- serviceAccountToken:
path: tokenPath
expirationSeconds: 6000
audience: gakki-audiences
```
The pod creation will fail with error info like:
Events:
```
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 23s default-scheduler Successfully assigned office/busybox2 to 127.0.0.1
Warning FailedMount 8s (x6 over 23s) kubelet, 127.0.0.1 MountVolume.SetUp failed for volume "token" : failed to fetch token: resource name may not be empty
```
We should refuse the projection request earlier. This patch fix this.
**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
```
It takes a variable amount of time for the multipath daemon
to create /dev/dm-XX in response to new LUNs being discovered.
The old iscsi_util code only discovered the multipath device
if it was created quickly enough, but in a significant number
of cases, kubelet would grab one of the individual paths and
put a filesystem it on before multipathd could construct a
multipath device.
This change waits for the multipath device to get created for
up to 10 seconds, but only if the PV actually had more than
one portal.
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scope AWS LoadBalancer security group ICMP rules to spec.loadBalancerSourceRanges
/sig aws
**What this PR does / why we need it**:
Make the client CIDR ranges for MTU consistent with what [the documentation appears to describe](https://kubernetes.io/docs/concepts/services-networking/service/#type-loadbalancer), where the ranges should be equal to `spec.loadBalancerSourceRanges` if supplied.
**Which issue(s) this PR fixes**:
Fixes#63564
**Release note**:
```release-note
scope AWS LoadBalancer security group ICMP rules to spec.loadBalancerSourceRanges
```
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Add zones support for vSphere cloud provider(in-tree)
**What this PR does / why we need it**:
This PR added zones(built-in node labels) support for vSphere cloud provider(in-tree). More details can be found in the issue as below.
**Which issue(s) this PR fixes** :
Partially fixes phase 1 of issue #64021
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Output volumes (capacity, requested) along with cpu and memory when BalanceAttachedNodeVolumes is enabled.
This PR has 2 commits:
One commit fixes incorrect reporting of total request of cpu and memory. Without this commit, see the erroneous output where total request is more than capacity when the pod is allowed to admit.
```
BalancedResourceAllocation, capacity 4000 millicores 15495647232 memory bytes, total request 4850 millicores 17248866304 memory bytes, score 9
```
The other commit adds outputting volumes (capacity, requested) too along with cpu and memory when BalanceAttachedNodeVolumes is enabled.
@kubernetes/sig-scheduling-pr-reviews @bsalamat @k82cn @ravisantoshgudimetla
```release-note
None.
```
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make the log about HPA more readable
**What this PR does / why we need it**:
**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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improve serviceaccount projected volume validation error info
**What this PR does / why we need it**:
Fix a small bug here;
We should use srcPath instead fldPath here like other projection volume do which could give info
about which source triggered the error.
**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 MatchNodeSelectorTerms() runs statelessly
**What this PR does**:
Fix sorting behavior in selector.go:
- move sorting from NewRequirement() out to String()
- add related unit tests
- add unit tests in one of outer callers (pkg/apis/core/v1/helper)
**Why we need it**:
- Without this fix, scheduling and daemonset controller doesn't work well in some (corner) cases
**Which issue(s) this PR fixes**:
Fixes#66298
**Special notes for your reviewer**:
Parameter `nodeSelectorTerms` in method MatchNodeSelectorTerms() is a slice, which is fundamentally a {*elements, len, cap} tuple - i.e. it's passing in a pointer. In that method, NodeSelectorRequirementsAsSelector() -> NewRequirement() is invoked, and the `matchExpressions[*].values` is passed into and **modified** via `sort.Strings(vals)`.
This will cause following daemonset pod fall into an infinite create/delete loop:
```yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: problem
spec:
selector:
matchLabels:
app: sleeper
template:
metadata:
labels:
app: sleeper
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: In
values:
- 127.0.0.2
- 127.0.0.1
containers:
- name: busybox
image: busybox
command: ["/bin/sleep", "7200"]
```
(the problem can be stably reproduced on a local cluster started by `hack/local-up-cluster.sh`)
The first time daemonset yaml is handled by apiserver and persisted in etcd with original format (original order of values was kept - 127.0.0.2, 127.0.0.1). After that, daemonset controller tries to schedule pod, and it reuses the predicates logic in scheduler component - where the values are **sorted** deeply. This not only causes the pod to be created in sorted order (127.0.0.1, 127.0.0.2), but also introduced a bug when updating daemonset - internally ds controller use a "rawMessage" (bytes of an object) to calculate hash acting as a "controller-revision-hash" to control revision rollingUpdate/rollBack, so it keeps killing "old" pod and spawning "new" pod back and forth, and fall into an infinite loop.
The issue exists in `master`, `release-1.11` and `release-1.10`.
**Release note**:
```release-note
NONE
```
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Make admission webhooks conversion convert CONNECT body correctly
Fix#59759.
1. Make apiserver pass connectRequest.Options directly to the admission layer. All other information in rest.ConnectRequest is present in admission attributes.
2. Make the scope.Kind of pod/attach, pod/exec, pod/portforward, node/proxy, service/proxy to their respective options Kind, instead of the parent Kind.
I've tested it locally, the conversion is working correctly for "kubectl attach". I'll add e2e tests.
I'll keep this to myself until I add the tests, but cc @mikedanese @liggitt RE. https://github.com/kubernetes/kubernetes/pull/66633.
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fix spelling mistakes
**What this PR does / why we need it**:
fix spelling mistakes
**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
```
- move sorting from NewRequirement() out to String()
- add related unit tests
- add unit tests in one of outer callers (pkg/apis/core/v1/helper)
Closes#66298
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use func WaitForCompletionRef replace of deprecated func WaitForCompletion
**What this PR does / why we need it**:
use func WaitForCompletionRef replace of deprecated func WaitForCompletion
```
// WaitForCompletion will return when one of the following conditions is met: the long
// running operation has completed, the provided context is cancelled, or the client's
// polling duration has been exceeded. It will retry failed polling attempts based on
// the retry value defined in the client up to the maximum retry attempts.
// Deprecated: Please use WaitForCompletionRef() instead.
func (f Future) WaitForCompletion(ctx context.Context, client autorest.Client) error {
return f.WaitForCompletionRef(ctx, client)
}
```
**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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Refactor storage factory config with Complete().New() flow
**What this PR does / why we need it**:
1. Split `BuildStorageFactory` constructor into `Complete().New()` flow to build an instance for etcd storage.
2. Put `EtcdOptions` and `StorageSerializationOptions` into a `StorageFactoryOptions` for a more reasonable structured config 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 #
**Special notes for your reviewer**:
Generally, my idea is to split the huge code in [https://github.com/kubernetes/kubernetes/blob/master/cmd/kube-apiserver/app/server.go](https://github.com/kubernetes/kubernetes/blob/master/cmd/kube-apiserver/app/server.go) into somewhere else making more sense :)
**Release note**:
```release-note
NONE
```
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kubelet/cm/cpumanager: Fix unused variable "skipIfPermissionsError"
The variable "skipIfPermissionsError" is not needed even when
permission error happened.
Make scope.Kind of pod/attach, pod/exec, pod/portforward, node/proxy,
service/proxy to their respective subresource Kind, instead of the
parent Kind. The kind is used by the admission webhook controller to
determine how to convert the object.
