Chapter 14. SubjectAccessReview [authorization.k8s.io/v1]

extra

object

Extra corresponds to the user.Info.GetExtra() method from the authenticator. Since that is input to the authorizer it needs a reflection here.

extra{}

array (string)

groups

array (string)

Groups is the groups you’re testing for.

nonResourceAttributes

object

NonResourceAttributes includes the authorization attributes available for non-resource requests to the Authorizer interface

resourceAttributes

object

ResourceAttributes includes the authorization attributes available for resource requests to the Authorizer interface

uid

string

UID information about the requesting user.

user

string

User is the user you’re testing for. If you specify "User" but not "Groups", then is it interpreted as "What if User were not a member of any groups

path

string

Path is the URL path of the request

verb

string

Verb is the standard HTTP verb

fieldSelector

object

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.

group

string

Group is the API Group of the Resource. "*" means all.

labelSelector

object

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.

name

string

Name is the name of the resource being requested for a "get" or deleted for a "delete". "" (empty) means all.

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

resource

string

Resource is one of the existing resource types. "*" means all.

subresource

string

Subresource is one of the existing resource types. "" means none.

verb

string

Verb is a kubernetes resource API verb, like: get, list, watch, create, update, delete, proxy. "*" means all.

version

string

Version is the API Version of the Resource. "*" means all.

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.

requirements

array (FieldSelectorRequirement)

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.

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.

requirements

array (LabelSelectorRequirement)

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.

allowed

boolean

Allowed is required. True if the action would be allowed, false otherwise.

denied

boolean

Denied is optional. True if the action would be denied, otherwise false. If both allowed is false and denied is false, then the authorizer has no opinion on whether to authorize the action. Denied may not be true if Allowed is true.

evaluationError

string

EvaluationError is an indication that some error occurred during the authorization check. It is entirely possible to get an error and be able to continue determine authorization status in spite of it. For instance, RBAC can be missing a role, but enough roles are still present and bound to reason about the request.

reason

string

Reason is optional. It indicates why a request was allowed or denied.

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.

body

SubjectAccessReview schema

200 - OK

SubjectAccessReview schema

201 - Created

SubjectAccessReview schema

202 - Accepted

SubjectAccessReview schema

401 - Unauthorized

Empty