Automatic merge from submit-queue
Use generation in pod disruption budget
Fixes#35324
Previously it was possible to use allowedDirsruptions calculated for the previous spec with the current spec. With generation check API servers always make sure that allowedDisruptions were calculated for the current spec.
At the same time I set the registry policy to only accept updates if the version based on which the update was made matches to the current version in etcd. That ensures that parallel eviction executions don't use the same allowed disruption.
cc: @davidopp @kargakis @wojtek-t
Automatic merge from submit-queue
Fix default Seccomp profile directory
Looks like some of the refactoring caused us to lose the default
directory. Setting that explicitly here.
Fixes#36350
Automatic merge from submit-queue
Support persistent volume usage for kubernetes running on Photon Controller platform
**What this PR does / why we need it:**
Enable the persistent volume usage for kubernetes running on Photon platform.
Photon Controller: https://vmware.github.io/photon-controller/
_Only the first commit include the real code change.
The following commits are for third-party vendor dependency and auto-generated code/docs updating._
Two components are added:
pkg/cloudprovider/providers/photon: support Photon Controller as cloud provider
pkg/volume/photon_pd: support Photon persistent disk as volume source for persistent volume
Usage introduction:
a. Photon Controller is supported as cloud provider.
When choosing to use photon controller as a cloud provider, "--cloud-provider=photon --cloud-config=[path_to_config_file]" is required for kubelet/kube-controller-manager/kube-apiserver. The config file of Photon Controller should follow the following usage:
```
[Global]
target = http://[photon_controller_endpoint_IP]
ignoreCertificate = true
tenant = [tenant_name]
project = [project_name]
overrideIP = true
```
b. Photon persistent disk is supported as volume source/persistent volume source.
yaml usage:
```
volumes:
- name: photon-storage-1
photonPersistentDisk:
pdID: "643ed4e2-3fcc-482b-96d0-12ff6cab2a69"
```
pdID is the persistent disk ID from Photon Controller.
c. Enable Photon Controller as volume provisioner.
yaml usage:
```
kind: StorageClass
apiVersion: storage.k8s.io/v1beta1
metadata:
name: gold_sc
provisioner: kubernetes.io/photon-pd
parameters:
flavor: persistent-disk-gold
```
The flavor "persistent-disk-gold" needs to be created by Photon platform admin before hand.
Provides an opt-in flag, --experimental-fail-swap-on (and corresponding
KubeletConfiguration value, ExperimentalFailSwapOn), which is false by default.
Automatic merge from submit-queue
Deprecate extensions/v1beta1.Jobs related stuff
This PR supersedes https://github.com/kubernetes/kubernetes/pull/33861, it's a pre-req for removing `extensions/v1beta1.Jobs` (#32763) in the next release.
@kubernetes/kubectl @kubernetes/api-review-team ptal
@bgrant0607 @erictune @janetkuo fyi
```release-note
Deprecate extensions/v1beta1.Jobs
```
Automatic merge from submit-queue
Fix kubectl drain for statefulset
Support deleting pets for `kubectl drain`.
Use evict to delete pods.
Fixes: #33727
```release-note
Adds support for StatefulSets in kubectl drain.
Switches to use the eviction sub-resource instead of deletion in kubectl drain, if server supports.
```
@foxish @caesarxuchao
Automatic merge from submit-queue
Rename experimental-runtime-integration-type to experimental-cri
Also rename the field in the component config to `EnableCRI`
Automatic merge from submit-queue
Default kube-proxy to the old behavior for proxier sync.
Fix#36281.
This PR defaults `minSyncPeriod` to 0 and makes kube-proxy fall back to the old behavior to fix the immediate problem #36266.
@bprashanth
Automatic merge from submit-queue
Initial work on running windows containers on Kubernetes
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This is the first stab at getting the Kubelet running on Windows (fixes#30279), and getting it to deploy network-accessible pods that consist of Windows containers. Thanks @csrwng, @jbhurat for helping out.
The main challenge with Windows containers at this point is that container networking is not supported. In other words, each container in the pod will get it's own IP address. For this reason, we had to make a couple of changes to the kubelet when it comes to setting the pod's IP in the Pod Status. Instead of using the infra-container's IP, we use the IP address of the first container.
Other approaches we investigated involved "disabling" the infra container, either conditionally on `runtime.GOOS` or having a separate windows-docker container runtime that re-implemented some of the methods (would require some refactoring to avoid maintainability nightmare).
Other changes:
- The default docker endpoint was removed. This results in the docker client using the default for the specific underlying OS.
More detailed documentation on how to setup the Windows kubelet can be found at https://docs.google.com/document/d/1IjwqpwuRdwcuWXuPSxP-uIz0eoJNfAJ9MWwfY20uH3Q.
cc: @ikester @brendandburns @jstarks
Automatic merge from submit-queue
make using service account credentials from controllers optional
Adds a flag to make the "SA per controller" behavior optional.
Automatic merge from submit-queue
add script to check for updates to the files for generation
Adds a verify script to help people writing APIs remember to wire all the individual pieces up. Eventually it will be better to avoid this altogether, but this is a start.
@ncdc fyi
Automatic merge from submit-queue
Switch DisruptionBudget api from bool to int allowed disruptions [only v1beta1]
Continuation of #34546. Apparently it there is some bug that prevents us from having 2 different incompatibile version of API in integration tests. So in this PR v1alpha1 is removed until testing infrastructure is fixed.
Base PR comment:
Currently there is a single bool in disruption budget api that denotes whether 1 pod can be deleted or not. Every time a pod is deleted the apiserver filps the bool to false and the disruptionbudget controller sets it to true if more deletions are allowed. This works but it is far from optimal when the user wants to delete multiple pods (for example, by decreasing replicaset size from 10000 to 8000).
This PR adds a new api version v1beta1 and changes bool to int which contains a number of pods that can be deleted at once.
cc: @davidopp @mml @wojtek-t @fgrzadkowski @caesarxuchao
Automatic merge from submit-queue
[Kubelet] Use the custom mounter script for Nfs and Glusterfs only
This patch reduces the scope for the containerized mounter to NFS and GlusterFS on GCE + GCI clusters
This patch also enabled the containerized mounter on GCI nodes
Shepherding multiple PRs through the submit queue is painful. Hence I combined them into this PR. Please review each commit individually.
cc @jingxu97 @saad-ali
https://github.com/kubernetes/kubernetes/pull/35652 has also been reverted as part of this PR
Automatic merge from submit-queue
pod and qos level cgroup support
```release-note
[Kubelet] Add alpha support for `--cgroups-per-qos` using the configured `--cgroup-driver`. Disabled by default.
```
Automatic merge from submit-queue
rename kubelet flag mounter-path to experimental-mounter-path
```release-note
* Kubelet flag '--mounter-path' renamed to '--experimental-mounter-path'
```
The feature the flag controls is an experimental feature and this renaming ensures that users do not depend on this feature just yet.
Automatic merge from submit-queue
Remove last probe time from replica sets
While experimenting with Deployment conditions I found out that if we are going to use lastProbeTime as we are supposed to be using it then we hotloop between updates (see https://github.com/kubernetes/kubernetes/pull/19343#issuecomment-255096778 for more info)
cc: @smarterclayton @soltysh
In order to be able to use new mounter library, this PR adds the
mounterPath flag to kubelet which passes the flag to the mount
interface. If flag is empty, mount uses default mount path.
Automatic merge from submit-queue
Adding default StorageClass annotation printout for resource_printer and describer and some refactoring
adding ISDEFAULT for _kubectl get storageclass_ output
```
[root@screeley-sc1 gce]# kubectl get storageclass
NAME TYPE ISDEFAULT
another-class kubernetes.io/gce-pd NO
generic1-slow kubernetes.io/gce-pd YES
generic2-fast kubernetes.io/gce-pd YES
```
```release-note
Add ISDEFAULT to kubectl get storageClass output
```
@kubernetes/sig-storage
Automatic merge from submit-queue
WIP: Remove the legacy networking mode
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**What this PR does / why we need it**:
Removes the deprecated configure-cbr0 flag and networking mode to avoid having untested and maybe unstable code in kubelet, see: #33789
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*:
fixes#30589fixes#31937
**Special notes for your reviewer**: There are a lot of deployments who rely on this networking mode. Not sure how we deal with that: force switch to kubenet or just delete the old deployment?
But please review the code changes first (the first commit)
**Release note**:
<!-- Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access)
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`.
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```release-note
Removed the deprecated kubelet --configure-cbr0 flag, and with that the "classic" networking mode as well
```
PTAL @kubernetes/sig-network @kubernetes/sig-node @mikedanese
Automatic merge from submit-queue
Add PSP support for seccomp profiles
Seccomp support for PSP. There are still a couple of TODOs that need to be fixed but this is passing tests.
One thing of note, since seccomp is all being stored in annotations right now it breaks some of the assumptions we've stated for the provider in terms of mutating the passed in pod. I've put big warning comments around the pieces that do that to make sure it's clear and covered the rollback in admission if the policy fails to validate.
@sttts @pmorie @erictune @smarterclayton @liggitt
Automatic merge from submit-queue
Add default cluster role bindings
Add default cluster roles bindings to rbac bootstrapping. Also adds a case for allowing escalation when you have no authenticator.
@liggitt I expect you may need to make peace with this.
Automatic merge from submit-queue
[Client-gen] Let versioned client use versioned options
i.e., use v1.ListOptions, v1.DeleteOptions when possible.
Remove the extension/v1beta1.ListOptions, because it's exactly the same as v1.ListOptions, and is not referred throughout the code base. After its removal, I register v1.ListOptions during extensions/v1beta1 scheme registration.
First three commits are manual changes.
Fix#27753
cc @lavalamp
Automatic merge from submit-queue
Add test cases to test the default value of HorizontalPodAutoscaler
Add test cases to test the default value of HorizontalPodAutoscaler.
Automatic merge from submit-queue
Autoconvert cleanups
A few accumulated cleanups to conversion, and then a big change. Please review commit-by-commit. Verified by nuking all generated files and comparing the new results.
cc @lavalamp
Previously we refused to emit 'autoConvert_*' functions if any field was not
convertible. The way around this was to write manual Conversion functions, but
to do so safely you must handle every fields. Huge opportunity for errors.
This PR cleans up the filtering such that it only operates on types that should
be converted (remove a lot of code) and tracks when fields are skipped. In
that case, it emits an 'autoConvert' function but not a public 'Convert'
function. If there is no manual function, the compile will fail.
This also means that manual conversion functions can call autoConvert functions
and then "patch up" what they need.
Automatic merge from submit-queue
Remove hacks from ScheduledJobs cron spec parsing
Previusly `github.com/robfig/cron` library did not allow passing cron spec without seconds. First commit updates the library, which has additional method ParseStandard which follows the standard cron spec, iow. minute, hour, day of month, month, day of week.
@janetkuo @erictune as promised in #30227 I've updated the library and now I'm updating it in k8s
Automatic merge from submit-queue
unify available api group versions in our scripts
There are currently many parallel lists of available group versions with slightly different syntaxes in each one. This collapses them into a single list for us to maintain.
Also caught spots where the lists didn't match before.
@sttts @ncdc
Automatic merge from submit-queue
Refactor cert utils into one pkg, add funcs from bootkube for kubeadm to use
**What this PR does / why we need it**:
We have ended-up with rather incomplete and fragmented collection of utils for handling certificates. It may be worse to consider using `cfssl` for doing all of these things, but for now there is some functionality that we need in `kubeadm` that we can borrow from bootkube. It makes sense to move the utils from bookube into core, as discussed in #31221.
**Special notes for your reviewer**: I've taken the opportunity to review names of existing funcs and tried to make some improvements in that area (with help from @peterbourgon).
**Release note**:
```release-note
NONE
```
The new flag, if specified, and if --container-runtime=docker, switches
kubelet to use the new CRI implementation for testing. This is hidden flag
since the feature is still under heavy development and the flag may be changed
in the near future.
Automatic merge from submit-queue
Centralize install code
Trying to figure out a way to do this that makes the changes as painless to roll out as possible. This is going to be a multi-step process...
Previusly github.com/robfig/cron library did not allow passing cron spec without
seconds. Previous commit updates the library, which has additional
method ParseStandard which follows the standard cron spec, iow. minute,
hour, day of month, month, day of week.
Automatic merge from submit-queue
add local subject access review API
Adds a local subject access review endpoint to allow a project-admin (someone with full rights within a namespace) the power to inspect whether a person can perform an action in his namespace. This is a separate resource be factoring like this ensures that it is impossible for him to look outside his namespace and makes it possible to create authorization rules that can restrict this power to a project-admin in his own namespace. Other factorings require introspection of objects.
@kubernetes/sig-auth
Automatic merge from submit-queue
Add flag to set CNI bin dir, and use it on gci nodes
**What this PR does / why we need it**:
When using `kube-up` on GCE, following #31023 which moved the workers from debian to gci, CNI just isn't working. The root cause is basically as discussed in #28563: one flag (`--network-plugin-dir`) means two different things, and the `configure-helper` script uses it for the wrong purpose.
This PR adds a new flag `--cni-bin-dir`, then uses it to configure CNI as desired.
As discussed at #28563, I have also added a flag `--cni-conf-dir` so users can be explicit
**Which issue this PR fixes** : fixes#28563
**Special notes for your reviewer**:
I left the old flag largely alone for backwards-compatibility, with the exception that I stop setting the default when CNI is in use. The value of `"/usr/libexec/kubernetes/kubelet-plugins/net/exec/"` is unlikely to be what is wanted there.
**Release note**:
```release-note
Added new kubelet flags `--cni-bin-dir` and `--cni-conf-dir` to specify where CNI files are located.
Fixed CNI configuration on GCI platform when using CNI.
```
Automatic merge from submit-queue
Improvements on OpenAPI spec generation
- Generating models using go2idl library (no reflection anymore)
- Remove dependencies on go-restful/swagger
- Generate one swagger.json file for each web-service
- Bugfix: fixed a bug in trie implementation
Reference: #13414
**Release note**:
```release-note
Generate separate OpenAPI spec for each API GroupVersion on /<Group>/<Version>/swagger.json
```
Automatic merge from submit-queue
Change rbac roleref to reflect the information we want
@liggitt @ericchiang This is a version of https://github.com/kubernetes/kubernetes/pull/31359 which updates the `RoleRef` to be (I think) the type that we want, with a group, resource, and name.
This is **not** backwards compatible with any existing data. I'm ok with doing this since rbac was considered alpha, but its something to consider.
If we want this instead, I'll close the previous pull (or update it with this content).
Automatic merge from submit-queue
Set Job's labels from PodTemplateSpec if none are specified
Fixes#31009 and replaces #32033.
@AdoHe I've picked your changes, added the additional ones for 'batch/v2alpha1' and most importantly added tests for job's defaulting. ptal
Automatic merge from submit-queue
remove cast utilities from rbac
Casting functions like these are a source of pain in OpenShift. We should eliminate them to avoid drift problems like we've had downstream.
@kubernetes/sig-auth
@ericchiang ptal
Automatic merge from submit-queue
add selfsubjectaccessreview API
Exposes the REST API for self subject access reviews. This allows a user to see whether or not they can perform a particular action.
@kubernetes/sig-auth
Automatic merge from submit-queue
Split path validation into a separate library
This PR splits path segment validation into it's own package. This cuts off one of the restclient's dependency paths to some docker packages, and completely eliminates its dependency on go-restful swagger validation.
cc @kubernetes/sig-api-machinery
Automatic merge from submit-queue
Fix PSP update validation
Issues fixed:
- apparmor annotations were not being validated
- sysctl annotations were not being validated
- `ValidateObjectMetaUpdate` parameters were reversed
/cc @sttts
---
1.4 justification:
- Risk: If I did something wrong, valid updates could be rejected or invalid updates accepted.
- Rollback: Nothing should depend on this behavior
- Cost: As it stands, the PSP can be updated to an invalid state. The cost of this is relatively low, but a bad user experience.
Automatic merge from submit-queue
Namespace certificates API group
New API groups should follow best-practices for naming, including using DNS names within the k8s.io namespace
```release-note
The certificates API group has been renamed to certificates.k8s.io
```
Automatic merge from submit-queue
support Azure data disk volume
This is a WIP of supporting azure data disk volume. Will add test and dynamic provisioning support once #29006 is merged
replace #25915fix#23259
@kubernetes/sig-storage
@colemickens @brendandburns
Automatic merge from submit-queue
Add kubelet --network-plugin-mtu flag for MTU selection
* Add network-plugin-mtu option which lets us pass down a MTU to a network provider (currently processed by kubenet)
* Add a test, and thus make sysctl testable
Automatic merge from submit-queue
Add Cluster field in ObjectMeta
There will be no sub-rs, but add `Cluster` field to the ObjectMeta (for all the objects)
"To distinguish the object at the federation level from it's constituents at the cluster level we will add a "Cluster" field to the metadata of all objects (where the federation itself will also have a cluster identifier). That way it is possible to list, interact with, and distinguish between the objects either at the federation level or at the individual cluster level based on the cluster identifier. "
@quinton-hoole @nikhiljindal @deepak-vij @mfanjie @huangyuqi
[]()
Automatic merge from submit-queue
AppArmor PodSecurityPolicy support
Implements the AppArmor PodSecurityPolicy support based on the alpha API proposed [here](https://github.com/kubernetes/kubernetes/blob/master/docs/proposals/apparmor.md#pod-security-policy)
This implementation deviates from the original proposal in one way: it adds a separate option for specifying a default profile:
```
apparmor.security.alpha.kubernetes.io/defaultProfileName
```
This has several advantages over the original proposal:
- The default is explicit, rather than implicit on the ordering
- The default can be specified without constraining the allowed profiles
- The allowed profiles can be restricted without specifying a default (requires every pod to explicitly set a profile)
The E2E cluster does not currently enable the PodSecurityPolicy, so I will submit E2E tests in a separate PR.
/cc @dchen1107 @pweil- @sttts @jfrazelle @Amey-D
MTU selection is difficult, and if there is a transport such as IPSEC in
use may be impossible. So we allow specification of the MTU with the
network-plugin-mtu flag, and we pass this down into the network
provider.
Currently implemented by kubenet.
Automatic merge from submit-queue
Add readyReplicas to replica sets
@bgrant0607 for the api changes
@bprashanth for the controllers changes
@deads2k fyi
Automatic merge from submit-queue
Kubelet: add --container-runtime-endpoint and --image-service-endpoint
Flag `--container-runtime-endpoint` (overrides `--container-runtime`) is introduced to identify the unix socket file of the remote runtime service. And flag `--image-service-endpoint` is introduced to identify the unix socket file of the image service.
This PR is part of #28789 Milestone 0.
CC @yujuhong @Random-Liu
Automatic merge from submit-queue
Basic scaler/reaper for petset
Currently scaling or upgrading a petset is more complicated than it should be. Would be nice if this made code freeze on friday. I'm planning on a follow up change with generation number and e2es post freeze.
Automatic merge from submit-queue
allow group impersonation
Adds an "Impersonate-Group" header that can be used to specify exactly which groups to use on an impersonation request.
This also restructures the code to make it easier to add the scopes header next. This closely parallels the "Impersonate-User" header, so I figured I'd start easy.
@kubernetes/sig-auth
@ericchiang are you comfortable reviewing?
New flag --container-runtime-endpoint (overrides --container-runtime)
is introduced to kubelet which identifies the unix socket file of
the remote runtime service. And new flag --image-service-endpoint is
introduced to kubelet which identifies the unix socket file of the
image service.
Automatic merge from submit-queue
Revert "Revert "syncNetworkUtil in kubelet and fix loadbalancerSourceRange on GCE
Reverts kubernetes/kubernetes#30729
Automatic merge from submit-queue
Expose flags for new NodeEviction logic in NodeController
Fix#28832
Last PR from the NodeController NodeEviction logic series.
cc @davidopp @lavalamp @mml
Automatic merge from submit-queue
[kubelet] Introduce --protect-kernel-defaults flag to make the tunable behaviour configurable
Let's make the default behaviour of kernel tuning configurable. The default behaviour is kept modify as has been so far.
Automatic merge from submit-queue
[Kubelet] Rename `--config` to `--pod-manifest-path`. `--config` is deprecated.
This field holds the location of a manifest file or directory of manifest
files for pods the Kubelet is supposed to run. The name of the field
should reflect that purpose. I didn't change the flag name because that
API should remain stable.
<!-- Reviewable:start -->
---
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<!-- Reviewable:end -->
Automatic merge from submit-queue
Simplify canonical element term in deepcopy
Replace the old functional canonical element term in deepcopy registration with direct struct instantiation.
The old way was an artifact of non-uniform pointer/non-pointer types in the signature of deepcopy function. Since we changed that to always be a pointer, we can simplify the code.
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.kubernetes.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.kubernetes.io/reviews/kubernetes/kubernetes/30341)
<!-- Reviewable:end -->
Also provide a new --pod-manifest-path flag and deprecate the old
--config one.
This field holds the location of a manifest file or directory of manifest
files for pods the Kubelet is supposed to run. The name of the field
should reflect that purpose.
Automatic merge from submit-queue
Rewrite service controller to apply best controller pattern
This PR is a long term solution for #21625:
We apply the same pattern like replication controller to service controller to avoid the potential process order messes in service controller, the change includes:
1. introduce informer controller to watch service changes from kube-apiserver, so that every changes on same service will be kept in serviceStore as the only element.
2. put the service name to be processed to working queue
3. when process service, always get info from serviceStore to ensure the info is up-to-date
4. keep the retry mechanism, sleep for certain interval and add it back to queue.
5. remote the logic of reading last service info from kube-apiserver before processing the LB info as we trust the info from serviceStore.
The UT has been passed, manual test passed after I hardcode the cloud provider as FakeCloud, however I am not able to boot a k8s cluster with any available cloudprovider, so e2e test is not done.
Submit this PR first for review and for triggering a e2e test.
Automatic merge from submit-queue
rbac validation: rules can't combine non-resource URLs and regular resources
This PR updates the validation used for RBAC to prevent rules from mixing non-resource URLs and regular resources.
For example the following is no longer valid
```yml
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1alpha1
metadata:
name: admins
rules:
- apiGroups: ["*"]
resources: ["*"]
verbs: ["*"]
nonResourceURLs: ["*"]
```
And must be rewritten as so.
```yml
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1alpha1
metadata:
name: admins
rules:
- apiGroups: ["*"]
resources: ["*"]
verbs: ["*"]
- nonResourceURLs: ["*"]
verbs: ["*"]
```
It also:
* Mandates non-zero length arrays for required resources.
* Mandates non-resource URLs only be used for ClusterRoles (not namespaced Roles).
* Updates the swagger validation so `verbs` are the only required field in a rule. Further validation is done by the server.
Also, do we need to bump the API version?
Discussed by @erictune and @liggitt in #28304
Updates kubernetes/features#2
cc @kubernetes/sig-auth
Edit:
* Need to update the RBAC docs if this change goes in.
Automatic merge from submit-queue
Add API for StorageClasses
This is the API objects only required for dynamic provisioning picked apart from the controller logic.
Entire feature is here: https://github.com/kubernetes/kubernetes/pull/29006
Automatic merge from submit-queue
add tokenreviews endpoint to implement webhook
Wires up an API resource under `apis/authentication.k8s.io/v1beta1` to expose the webhook token authentication API as an API resource. This allows one API server to use another for authentication and uses existing policy engines for the "authoritative" API server to controller access to the endpoint.
@cjcullen you wrote the initial type
Automatic merge from submit-queue
Fix RBAC authorizer of ServiceAccount
RBAC authorizer assigns a role to a wrong service account.
How to reproduce
1.Create role and rolebinding to allow default user in kube-system namespace to read secrets in kube-system namespace.
```
# kubectl create -f role.yaml
# kubectl create -f binding.yaml
```
```yaml
# role.yaml
kind: Role
apiVersion: rbac.authorization.k8s.io/v1alpha1
metadata:
name: secret-reader
namespace: kube-system
rules:
- apiGroups: [""]
resources: ["secrets"]
verbs: ["get", "watch", "list"]
nonResourceURLs: []
```
```yaml
# binding.yaml
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1alpha1
metadata:
name: read-secrets
namespace: kube-system
subjects:
- kind: ServiceAccount
name: default
namespace: kube-system
roleRef:
kind: Role
namespace: kube-system
name: secret-reader
apiVersion: rbac.authorization.k8s.io/v1alpha1
```
2.Set a credential of default user
```
$ kubectl config set-credentials default_user --token=<token_of_system:serviceaccount:kube-system:default>
$ kubectl config set-context default_user-context --cluster=test-cluster --user=default_user
$ kubectl config use-context default_user-context
```
3.Try to get secrets as default user in kube-system namespace
```
$ kubectl --namespace=kube-system get secrets
the server does not allow access to the requested resource (get secrets)
```
As shown above, default user could not access to secrets.
But if I have kube-system user in default namespace, it is allowed access to secrets.
4.Create a service account and try to get secrets as kube-system user in default namespace
```
# kubectl --namespace=default create serviceaccount kube-system
serviceaccount "kube-system" created
$ kubectl config set-credentials kube-system_user --token=<token_of_system:serviceaccount:default:kube-system>
$ kubectl config set-context kube-system_user-context --cluster=test-cluster --user=kube-system_user
$ kubectl config use-context kube-system_user-context
$ kubectl --namespace=kube-system get secrets
NAME TYPE DATA AGE
default-token-8pyb3 kubernetes.io/service-account-token 3 4d
```
Automatic merge from submit-queue
Undelete generated files
There's been enough people broken by not committing generated code, that we
should undo that until we have a proper client that is `go get` compatible.
This is temporary.
Fixes#28920
There's been enough people broken by not committing generated code, that we
should undo that until we have a proper client that is `go get` compatible.
This is temporary.
Clayton Coleman
