SelfSubjectAccessReview
apiVersion: authorization.k8s.io/v1
import "k8s.io/api/authorization/v1"
SelfSubjectAccessReview
SelfSubjectAccessReview checks whether or the current user can perform an action. Not filling in a spec.namespace means "in all namespaces". Self is a special case, because users should always be able to check whether they can perform an action
apiVersion: authorization.k8s.io/v1
kind: SelfSubjectAccessReview
metadata (ObjectMeta)
Standard list metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
spec (SelfSubjectAccessReviewSpec), required
Spec holds information about the request being evaluated. user and groups must be empty
status (SubjectAccessReviewStatus)
Status is filled in by the server and indicates whether the request is allowed or not
SelfSubjectAccessReviewSpec
SelfSubjectAccessReviewSpec is a description of the access request. Exactly one of ResourceAuthorizationAttributes and NonResourceAuthorizationAttributes must be set
nonResourceAttributes (NonResourceAttributes)
NonResourceAttributes describes information for a non-resource access request
NonResourceAttributes includes the authorization attributes available for non-resource requests to the Authorizer interface
nonResourceAttributes.path (string)
Path is the URL path of the request
nonResourceAttributes.verb (string)
Verb is the standard HTTP verb
resourceAttributes (ResourceAttributes)
ResourceAuthorizationAttributes describes information for a resource access request
ResourceAttributes includes the authorization attributes available for resource requests to the Authorizer interface
resourceAttributes.fieldSelector (FieldSelectorAttributes)
fieldSelector describes the limitation on access based on field. It can only limit access, not broaden it.
This field is alpha-level. To use this field, you must enable the
AuthorizeWithSelectors
feature gate (disabled by default).*FieldSelectorAttributes indicates a field limited access. Webhook authors are encouraged to * ensure rawSelector and requirements are not both set * consider the requirements field if set * not try to parse or consider the rawSelector field if set. This is to avoid another CVE-2022-2880 (i.e. getting different systems to agree on how exactly to parse a query is not something we want), see https://www.oxeye.io/resources/golang-parameter-smuggling-attack for more details. For the SubjectAccessReview endpoints of the kube-apiserver: * If rawSelector is empty and requirements are empty, the request is not limited. * If rawSelector is present and requirements are empty, the rawSelector will be parsed and limited if the parsing succeeds. * If rawSelector is empty and requirements are present, the requirements should be honored * If rawSelector is present and requirements are present, the request is invalid.
resourceAttributes.fieldSelector.rawSelector (string)
rawSelector is the serialization of a field selector that would be included in a query parameter. Webhook implementations are encouraged to ignore rawSelector. The kube-apiserver's *SubjectAccessReview will parse the rawSelector as long as the requirements are not present.
resourceAttributes.fieldSelector.requirements ([]FieldSelectorRequirement)
Atomic: will be replaced during a merge
requirements is the parsed interpretation of a field selector. All requirements must be met for a resource instance to match the selector. Webhook implementations should handle requirements, but how to handle them is up to the webhook. Since requirements can only limit the request, it is safe to authorize as unlimited request if the requirements are not understood.
FieldSelectorRequirement is a selector that contains values, a key, and an operator that relates the key and values.
resourceAttributes.fieldSelector.requirements.key (string), required
key is the field selector key that the requirement applies to.
resourceAttributes.fieldSelector.requirements.operator (string), required
operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. The list of operators may grow in the future.
resourceAttributes.fieldSelector.requirements.values ([]string)
Atomic: will be replaced during a merge
values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty.
resourceAttributes.group (string)
Group is the API Group of the Resource. "*" means all.
resourceAttributes.labelSelector (LabelSelectorAttributes)
labelSelector describes the limitation on access based on labels. It can only limit access, not broaden it.
This field is alpha-level. To use this field, you must enable the
AuthorizeWithSelectors
feature gate (disabled by default).*LabelSelectorAttributes indicates a label limited access. Webhook authors are encouraged to * ensure rawSelector and requirements are not both set * consider the requirements field if set * not try to parse or consider the rawSelector field if set. This is to avoid another CVE-2022-2880 (i.e. getting different systems to agree on how exactly to parse a query is not something we want), see https://www.oxeye.io/resources/golang-parameter-smuggling-attack for more details. For the SubjectAccessReview endpoints of the kube-apiserver: * If rawSelector is empty and requirements are empty, the request is not limited. * If rawSelector is present and requirements are empty, the rawSelector will be parsed and limited if the parsing succeeds. * If rawSelector is empty and requirements are present, the requirements should be honored * If rawSelector is present and requirements are present, the request is invalid.
resourceAttributes.labelSelector.rawSelector (string)
rawSelector is the serialization of a field selector that would be included in a query parameter. Webhook implementations are encouraged to ignore rawSelector. The kube-apiserver's *SubjectAccessReview will parse the rawSelector as long as the requirements are not present.
resourceAttributes.labelSelector.requirements ([]LabelSelectorRequirement)
Atomic: will be replaced during a merge
requirements is the parsed interpretation of a label selector. All requirements must be met for a resource instance to match the selector. Webhook implementations should handle requirements, but how to handle them is up to the webhook. Since requirements can only limit the request, it is safe to authorize as unlimited request if the requirements are not understood.
A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
resourceAttributes.labelSelector.requirements.key (string), required
key is the label key that the selector applies to.
resourceAttributes.labelSelector.requirements.operator (string), required
operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
resourceAttributes.labelSelector.requirements.values ([]string)
Atomic: will be replaced during a merge
values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
resourceAttributes.name (string)
Name is the name of the resource being requested for a "get" or deleted for a "delete". "" (empty) means all.
resourceAttributes.namespace (string)
Namespace is the namespace of the action being requested. Currently, there is no distinction between no namespace and all namespaces "" (empty) is defaulted for LocalSubjectAccessReviews "" (empty) is empty for cluster-scoped resources "" (empty) means "all" for namespace scoped resources from a SubjectAccessReview or SelfSubjectAccessReview
resourceAttributes.resource (string)
Resource is one of the existing resource types. "*" means all.
resourceAttributes.subresource (string)
Subresource is one of the existing resource types. "" means none.
resourceAttributes.verb (string)
Verb is a kubernetes resource API verb, like: get, list, watch, create, update, delete, proxy. "*" means all.
resourceAttributes.version (string)
Version is the API Version of the Resource. "*" means all.
Operations
create
create a SelfSubjectAccessReview
HTTP Request
POST /apis/authorization.k8s.io/v1/selfsubjectaccessreviews
Parameters
body: SelfSubjectAccessReview, required
dryRun (in query): string
fieldManager (in query): string
fieldValidation (in query): string
pretty (in query): string
Response
200 (SelfSubjectAccessReview): OK
201 (SelfSubjectAccessReview): Created
202 (SelfSubjectAccessReview): Accepted
401: Unauthorized
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