Automatic merge from submit-queue (batch tested with PRs 65897, 65909, 65856, 65815). 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 RBAC escalation error message more useful Fixes #65804 Tested by granting a namespaced admin role to a user, then attempt to grant a broader role as that user: ``` kubectl create rolebinding user1-admin --clusterrole=admin --user=user1 kubectl create rolebinding user2-volume --as=user1 --clusterrole=system:volume-scheduler --user=user2 ``` before: > Error from server (Forbidden): rolebindings.rbac.authorization.k8s.io "user2-volume" is forbidden: attempt to grant extra privileges: [{[get] [] [persistentvolumes] [] []} {[list] [] [persistentvolumes] [] []} {[patch] [] [persistentvolumes] [] []} {[update] [] [persistentvolumes] [] []} {[watch] [] [persistentvolumes] [] []} {[get] [storage.k8s.io] [storageclasses] [] []} {[list] [storage.k8s.io] [storageclasses] [] []} {[watch] [storage.k8s.io] [storageclasses] [] []}] user=&{user1 [system:authenticated] map[]} ownerrules=[{[create] [authorization.k8s.io] [selfsubjectaccessreviews selfsubjectrulesreviews] [] []} {[get] [] [] [] [/api /api/* /apis /apis/* /healthz /openapi /openapi/* /swagger-2.0.0.pb-v1 /swagger.json /swaggerapi /swaggerapi/* /version /version/]} {[create delete deletecollection get list patch update watch] [] [pods pods/attach pods/exec pods/portforward pods/proxy] [] []} {[create delete deletecollection get list patch update watch] [] [configmaps endpoints persistentvolumeclaims replicationcontrollers replicationcontrollers/scale secrets serviceaccounts services services/proxy] [] []} {[get list watch] [] [bindings events limitranges namespaces/status pods/log pods/status replicationcontrollers/status resourcequotas resourcequotas/status] [] []} {[get list watch] [] [namespaces] [] []} {[impersonate] [] [serviceaccounts] [] []} {[create delete deletecollection get list patch update watch] [apps] [daemonsets deployments deployments/rollback deployments/scale replicasets replicasets/scale statefulsets statefulsets/scale] [] []} {[create delete deletecollection get list patch update watch] [autoscaling] [horizontalpodautoscalers] [] []} {[create delete deletecollection get list patch update watch] [batch] [cronjobs jobs] [] []} {[create delete deletecollection get list patch update watch] [extensions] [daemonsets deployments deployments/rollback deployments/scale ingresses networkpolicies replicasets replicasets/scale replicationcontrollers/scale] [] []} {[create delete deletecollection get list patch update watch] [policy] [poddisruptionbudgets] [] []} {[create delete deletecollection get list patch update watch] [networking.k8s.io] [networkpolicies] [] []} {[create] [authorization.k8s.io] [localsubjectaccessreviews] [] []} {[create delete deletecollection get list patch update watch] [rbac.authorization.k8s.io] [rolebindings roles] [] []}] ruleResolutionErrors=[] after > Error from server (Forbidden): rolebindings.rbac.authorization.k8s.io "user2-volume" is forbidden: user "user1" (groups=["system:authenticated"]) is attempting to grant RBAC permissions not currently held: > {APIGroups:[""], Resources:["persistentvolumes"], Verbs:["get" "list" "patch" "update" "watch"]} > {APIGroups:["storage.k8s.io"], Resources:["storageclasses"], Verbs:["get" "list" "watch"]} |
||
---|---|---|
.github | ||
api | ||
build | ||
cluster | ||
cmd | ||
docs | ||
Godeps | ||
hack | ||
logo | ||
pkg | ||
plugin | ||
staging | ||
test | ||
third_party | ||
translations | ||
vendor | ||
.bazelrc | ||
.generated_files | ||
.gitattributes | ||
.gitignore | ||
.kazelcfg.json | ||
BUILD.bazel | ||
CHANGELOG-1.2.md | ||
CHANGELOG-1.3.md | ||
CHANGELOG-1.4.md | ||
CHANGELOG-1.5.md | ||
CHANGELOG-1.6.md | ||
CHANGELOG-1.7.md | ||
CHANGELOG-1.8.md | ||
CHANGELOG-1.9.md | ||
CHANGELOG-1.10.md | ||
CHANGELOG-1.11.md | ||
CHANGELOG.md | ||
code-of-conduct.md | ||
CONTRIBUTING.md | ||
labels.yaml | ||
LICENSE | ||
Makefile | ||
Makefile.generated_files | ||
OWNERS | ||
OWNERS_ALIASES | ||
README.md | ||
SECURITY_CONTACTS | ||
SUPPORT.md | ||
WORKSPACE |
Kubernetes

Kubernetes is an open source system for managing containerized applications across multiple hosts; providing basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF). If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF. For details about who's involved and how Kubernetes plays a role, read the CNCF announcement.
To start using Kubernetes
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To start developing Kubernetes
The community repository hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
You have a working Go environment.
$ go get -d k8s.io/kubernetes
$ cd $GOPATH/src/k8s.io/kubernetes
$ make
You have a working Docker environment.
$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
For the full story, head over to the developer's documentation.
Support
If you need support, start with the troubleshooting guide, and work your way through the process that we've outlined.
That said, if you have questions, reach out to us one way or another.