Automatic merge from submit-queue (batch tested with PRs 50775, 51397, 51168, 51465, 51536)
Allow bearer requests to be proxied by kubectl proxy
Use a fake transport to capture changes to the request and then surface
them back to the end user.
Fixes#50466
@liggitt no tests yet, but works locally
Automatic merge from submit-queue
client-go: Make conditionalTransport a WrapperRoundTripper
**What this PR does / why we need it**:
Fixes broken GKE test: https://k8s-gubernator.appspot.com/builds/kubernetes-jenkins/logs/ci-kubernetes-e2e-gke/
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Add storageClass.mountOptions and use it in all applicable plugins
split off from https://github.com/kubernetes/kubernetes/pull/50919 and still dependent on it. cc @gnufied
issue: https://github.com/kubernetes/features/issues/168
```release-note
Add mount options field to StorageClass. The options listed there are automatically added to PVs provisioned using the class.
```
Automatic merge from submit-queue (batch tested with PRs 49961, 50005, 50738, 51045, 49927)
adding validations on kubelet starting configurations
**What this PR does / why we need it**:
I found some validations of kubelet starting options were missing when I was creating a custom cluster from scratch. The kubelet does not check invalid configurations on `--cadvisor-port`, `--event-burst`, `--image-gc-high-threshold`, etc. I have added some validations in kubelet like validations in `cmd/kube-apiserver/app/options/validation.go`.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
Adds additional validation for kubelet in `pkg/kubelet/apis/kubeletconfig/validation`.
```
Automatic merge from submit-queue
Add Google cloud KMS service for envelope encryption transformer
This adds the required pieces which will allow addition of KMS based encryption providers (envelope transformer).
For now, we will be implementing it using Google Cloud KMS, but the code should make it easy to add support for any other such provider which can expose Decrypt and Encrypt calls.
Writing tests for Google Cloud KMS Service may cause a significant overhead to the testing framework. It has been tested locally and on GKE though.
Upcoming after this PR:
* Complete implementation of the envelope transformer, which uses LRU cache to maintain decrypted DEKs in memory.
* Track key version to assist in data re-encryption after a KEK rotation.
Development branch containing the changes described above: https://github.com/sakshamsharma/kubernetes/pull/4
Envelope transformer used by this PR was merged in #49350
Concerns #48522
Planned configuration:
```
kind: EncryptionConfig
apiVersion: v1
resources:
- resources:
- secrets
providers:
- kms:
cachesize: 100
configfile: gcp-cloudkms.conf
name: gcp-cloudkms
- identity: {}
```
gcp-cloudkms.conf:
```
[GoogleCloudKMS]
kms-location: global
kms-keyring: google-container-engine
kms-cryptokey: example-key
```
Automatic merge from submit-queue (batch tested with PRs 51298, 51510, 51511)
modifying the comment of BeforeDelete function to improve readability
**What this PR does / why we need it**:
modifying the comment of `BeforeDelete` function in `staging/src/k8s.io/apiserver/pkg/registry/rest/delete.go` to improve readability.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
`NONE`
* convert our types to openAPI types
* update strategy to include crd
* use strategy to validate customresource
* add helper funcs
* Fix conversion of empty ref field
* add validation for forbidden fields
* add defaulting for schema field
* Validate CRD Schema
Remove protobuf generation because of the interface type
Add custom fuzzer funcs
Add custom marshalling
Add custom conversion functions
move jsonschema types to separate file
Automatic merge from submit-queue (batch tested with PRs 51425, 51404, 51459, 51504, 51488)
fixing package comment of v1
**What this PR does / why we need it**:
fixing package comment of v1 in `staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types.go`.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
`NONE`
Automatic merge from submit-queue (batch tested with PRs 51425, 51404, 51459, 51504, 51488)
Remove previous local storage resource name 'scratch" and "overlay"
Remove previous local storage resource name 'scratch" and "overlay"
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: part of #50818
**Special notes for your reviewer**:
Now local ephemeral storage resource name is "ResourceEphemeralStorage", remove previous names as @vishh suggested in PR #51070
**Release note**:
```release-note
Remove previous local ephemeral storage resource names: "ResourceStorageOverlay" and "ResourceStorageScratch"
```
Automatic merge from submit-queue (batch tested with PRs 50919, 51410, 50099, 51300, 50296)
Remove failure policy from initializer configuration
A few reasons:
* Implementing fail open initializers increases complexity a lot
* We haven't seen strong use cases
* We can always add it back
Automatic merge from submit-queue (batch tested with PRs 50919, 51410, 50099, 51300, 50296)
Take mount options to GA by adding PV.spec.mountOptions
**What this PR does / why we need it**: Implements https://github.com/kubernetes/community/pull/771
issue: https://github.com/kubernetes/features/issues/168
**Special notes for your reviewer**:
TODO:
- ~StorageClass mountOptions~
As described in proposal, this adds PV.spec.mountOptions + mountOptions parameter to every plugin that is both provisionable & supports mount options.
(personally, even having done all the work already, i don't agree w/ the proposal that mountOptions should be SC parameter but... :))
**Release note**:
```release-note
Add mount options field to PersistentVolume spec
```
Automatic merge from submit-queue (batch tested with PRs 51471, 50561, 50435, 51473, 51436)
Feature gate initializers field
The metadata.initializers field should be feature gated and disabled by default while in alpha, especially since enforcement of initializer permission that keeps users from submitting objects with their own initializers specified is done via an admission plugin most clusters do not enable yet.
Not gating the field and tests caused tests added in https://github.com/kubernetes/kubernetes/issues/51429 to fail on clusters that don't enable the admission plugin.
This PR:
* adds an `Initializers` feature gate, auto-enables the feature gate if the admission plugin is enabled
* clears the `metadata.initializers` field of objects on create/update if the feature gate is not set
* marks the e2e tests as feature-dependent (will follow up with PR to test-infra to enable the feature and opt in for GCE e2e tests)
```release-note
Use of the alpha initializers feature now requires enabling the `Initializers` feature gate. This feature gate is auto-enabled if the `Initialzers` admission plugin is enabled.
```
Automatic merge from submit-queue (batch tested with PRs 51471, 50561, 50435, 51473, 51436)
Add local storage to downwards API
**Release note**:
```release-note
Add local ephemeral storage to downward API
```
/assign @NickrenREN
Automatic merge from submit-queue (batch tested with PRs 50932, 49610, 51312, 51415, 50705)
Add --request-timeout to kube-apiserver to make global request timeout configurable
**What this PR does / why we need it**:
Make the currently hard coded 60 global request timeout in apiserver configurable via a --request-timeout command line flag.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
https://github.com/kubernetes/kubernetes/issues/51355
**Special notes for your reviewer**:
We plan to backport this to 1.6 and 1.7. To ease the backport work, we've kept this change to a minimum. After this PR we will submit an additional PR to rename `--min-request-timeout` to something that more clearly describes it's purpose, such as `--long-running-request-timeout-min`.
**Release note**:
```release-note
Add --request-timeout to kube-apiserver to make global request timeout configurable.
```
Automatic merge from submit-queue (batch tested with PRs 50953, 51082)
Fix mergekey of initializers; Repair invalid update of initializers
Fix https://github.com/kubernetes/kubernetes/issues/51131
The PR did two things to make parallel patching `metadata.initializers.pending` possible:
* Add mergekey to initializers.pending
* Let the initializer admission plugin set the `metadata.intializers` to nil if an update makes the `pending` and the `result` both nil, instead of returning a validation error. Otherwise if multiple initializer controllers sending the patch removing themselves from `pending` at the same time, one of them will get a validation error.
```release-note
The patch to remove the last initializer from metadata.initializer.pending will result in metadata.initializer to be set to nil (assuming metadata.initializer.result is also nil), instead of resulting in an validation error.
```
Automatic merge from submit-queue
Fix forbidden message format
Before this change:
$ kubectl get pods --as=tom
Error from server (Forbidden): pods "" is forbidden: User "tom" cannot list pods in the namespace "default".
After this change:
$ kubectl get pods --as=tom
Error from server (Forbidden): pods is forbidden: User "tom" cannot list pods in the namespace "default".
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```
Fix forbidden message format, remove extra ""
```
Automatic merge from submit-queue
Remove null -> [] slice hack
Closes#44593
When 1.6 added protobuf storage, the storage layer lost the ability to persist slice fields with empty but non-null values.
As a workaround, we tried to convert empty slice fields to `[]`, rather than `null`. Compressing `null` -> `[]` was just as much of an API breakage as `[]` -> `null`, but was hoped to cause fewer problems in clients that don't do null checks.
Because of conversion optimizations around converting lists of objects, the `null` -> `[]` hack was discovered to only apply to individual get requests, not to a list of objects. 1.6 and 1.7 was released with this behavior, and the world didn't explode. 1.7 documented the breaking API change that `null` and `[]` should be considered equivalent, unless otherwise noted on a particular field.
This PR:
* Reverts the earlier attempt (https://github.com/kubernetes/kubernetes/pull/43422) at ensuring non-null json slice output in conversion
* Makes results of `get` consistent with the results of `list` (which helps naive clients that do deepequal comparisons of objects obtained via list/watch and get), and allows empty slice fields to be returned as `null`
```release-note
Protobuf serialization does not distinguish between `[]` and `null`.
API fields previously capable of storing and returning either `[]` and `null` via JSON API requests (for example, the Endpoints `subsets` field) can now store only `null` when created using the protobuf content-type or stored in etcd using protobuf serialization (the default in 1.6+). JSON API clients should tolerate `null` values for such fields, and treat `null` and `[]` as equivalent in meaning unless specifically documented otherwise for a particular field.
```
Automatic merge from submit-queue (batch tested with PRs 49850, 47782, 50595, 50730, 51341)
Paramaterize `stickyMaxAgeMinutes` for service in API
**What this PR does / why we need it**:
Currently I find `stickyMaxAgeMinutes` for a session affinity type service is hard code to 180min. There is a TODO comment, see
https://github.com/kubernetes/kubernetes/blob/master/pkg/proxy/iptables/proxier.go#L205
I think the seesion sticky max time varies from service to service and users may not aware of it since it's hard coded in all proxier.go - iptables, userspace and winuserspace.
Once we parameterize it in API, users can set/get the values for their different services.
Perhaps, we can introduce a new field `api.ClientIPAffinityConfig` in `api.ServiceSpec`.
There is an initial discussion about it in sig-network group. See,
https://groups.google.com/forum/#!topic/kubernetes-sig-network/i-LkeHrjs80
**Which issue this PR fixes**:
fixes#49831
**Special notes for your reviewer**:
**Release note**:
```release-note
Paramaterize session affinity timeout seconds in service API for Client IP based session affinity.
```
Before this change:
# kubectl get pods --as=tom
Error from server (Forbidden): pods "" is forbidden: User "tom" cannot list pods in the namespace "default".
After this change:
# kubectl get pods --as=tom
Error from server (Forbidden): pods is forbidden: User "tom" cannot list pods in the namespace "default".
Automatic merge from submit-queue (batch tested with PRs 51134, 51122, 50562, 50971, 51327)
set --audit-log-format default to json
Updates: https://github.com/kubernetes/kubernetes/issues/48561
**Release note**:
```
set --audit-log-format default to json for kube-apiserver
```
Automatic merge from submit-queue (batch tested with PRs 51134, 51122, 50562, 50971, 51327)
Call the right cleanup function
**What this PR does / why we need it**:
`defer cleanup()` will always call the function that was returned by the first call to `r.resyncChan()` but it should call the one returned by the last call.
**Special notes for your reviewer**:
This will print `c1`, not `c2`. See https://play.golang.org/p/FDjDbUxOvI
```go
func main() {
var c func()
c = c1
defer c()
c = c2
}
func c1 () {
fmt.Println("c1")
}
func c2 () {
fmt.Println("c2")
}
```
**Release note**:
```release-note
NONE
```
/kind bug
/sig api-machinery
