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APIResourceSchema

APIResourceSchema CRD schema reference (group apis.kcp.io)

APIResourceSchema describes a resource, identified by (group, version, resource, schema). An APIResourceSchema is immutable and cannot be deleted if they are referenced by an APIExport in the same workspace.
Full name:
apiresourceschemas.apis.kcp.io
Group:
apis.kcp.io
Singular name:
apiresourceschema
Plural name:
apiresourceschemas
Scope:
Cluster
Versions:
v1alpha1

Version v1alpha1

Properties

.apiVersion

string

APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

.kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

.metadata

object

.spec

object

Spec holds the desired state.

.spec.conversion

object

conversion defines conversion settings for the defined custom resource.

.spec.conversion.strategy

string Required

strategy specifies how custom resources are converted between versions. Allowed values are: - "None": The converter only change the apiVersion and would not touch any other field in the custom resource. - "Webhook": API Server will call to an external webhook to do the conversion. Additional information is needed for this option. This requires spec.preserveUnknownFields to be false, and spec.conversion.webhook to be set.

.spec.conversion.webhook

object

webhook describes how to call the conversion webhook. Required when strategy is set to "Webhook".

.spec.conversion.webhook.clientConfig

object

clientConfig is the instructions for how to call the webhook if strategy is Webhook.

.spec.conversion.webhook.clientConfig.caBundle

string

caBundle is a PEM encoded CA bundle which will be used to validate the webhook’s server certificate. If unspecified, system trust roots on the apiserver are used.

.spec.conversion.webhook.clientConfig.url

string

url gives the location of the webhook, in standard URL form (scheme://host:port/path).

Please note that using localhost or 127.0.0.1 as a host is risky unless you take great care to run this webhook on all hosts which run an apiserver which might need to make calls to this webhook. Such installs are likely to be non-portable, i.e., not easy to turn up in a new cluster.

The scheme must be “https”; the URL must begin with “https://”.

A path is optional, and if present may be any string permissible in a URL. You may use the path to pass an arbitrary string to the webhook, for example, a cluster identifier.

Attempting to use a user or basic auth e.g. “user:password@” is not allowed. Fragments (“#…”) and query parameters (“?…”) are not allowed, either.

Note: kcp does not support provided service names like Kubernetes does.

.spec.conversion.webhook.conversionReviewVersions

array Required

conversionReviewVersions is an ordered list of preferred ConversionReview versions the Webhook expects. The API server will use the first version in the list which it supports. If none of the versions specified in this list are supported by API server, conversion will fail for the custom resource. If a persisted Webhook configuration specifies allowed versions and does not include any versions known to the API Server, calls to the webhook will fail.

.spec.conversion.webhook.conversionReviewVersions[*]

string

.spec.group

string Required

group is the API group of the defined custom resource. Empty string means the core API group. The resources are served under /apis/<group>/... or /api for the core group.

.spec.nameValidation

string

nameValidation can be used to configure name validation for bound APIs. Allowed values are DNS1123Subdomain and PathSegmentName. - DNS1123Subdomain: a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, ‘-’ or ‘.’, and must start and end with an alphanumeric character. Regex used is ‘a-z0-9?(\.a-z0-9?)*’ - PathSegmentName: validates the name can be safely encoded as a path segment. The name may not be ‘.’ or ‘..’ and the name may not contain ‘/’ or ‘%’.

Defaults to DNS1123Subdomain, matching the behaviour of CRDs.

.spec.names

object Required

names specify the resource and kind names for the custom resource.

.spec.names.categories

array

categories is a list of grouped resources this custom resource belongs to (e.g. ‘all’). This is published in API discovery documents, and used by clients to support invocations like kubectl get all.

.spec.names.categories[*]

string

.spec.names.kind

string Required

kind is the serialized kind of the resource. It is normally CamelCase and singular. Custom resource instances will use this value as the kind attribute in API calls.

.spec.names.listKind

string

listKind is the serialized kind of the list for this resource. Defaults to “kindList”.

.spec.names.plural

string Required

plural is the plural name of the resource to serve. The custom resources are served under /apis/<group>/<version>/.../<plural>. Must match the name of the CustomResourceDefinition (in the form <names.plural>.<group>). Must be all lowercase.

.spec.names.shortNames

array

shortNames are short names for the resource, exposed in API discovery documents, and used by clients to support invocations like kubectl get <shortname>. It must be all lowercase.

.spec.names.shortNames[*]

string

.spec.names.singular

string

singular is the singular name of the resource. It must be all lowercase. Defaults to lowercased kind.

.spec.scope

string Required

scope indicates whether the defined custom resource is cluster- or namespace-scoped. Allowed values are Cluster and Namespaced.

.spec.versions

array Required

versions is the API version of the defined custom resource.

Note: the OpenAPI v3 schemas must be equal for all versions until CEL version migration is supported.

.spec.versions[*]

object

APIResourceVersion describes one API version of a resource.

.spec.versions[*].additionalPrinterColumns

array

additionalPrinterColumns specifies additional columns returned in Table output. See https://kubernetes.io/docs/reference/using-api/api-concepts/#receiving-resources-as-tables for details. If no columns are specified, a single column displaying the age of the custom resource is used.

.spec.versions[*].additionalPrinterColumns[*]

object

CustomResourceColumnDefinition specifies a column for server side printing.

.spec.versions[*].additionalPrinterColumns[*].description

string

description is a human readable description of this column.

.spec.versions[*].additionalPrinterColumns[*].format

string

format is an optional OpenAPI type definition for this column. The ‘name’ format is applied to the primary identifier column to assist in clients identifying column is the resource name. See https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#data-types for details.

.spec.versions[*].additionalPrinterColumns[*].jsonPath

string Required

jsonPath is a simple JSON path (i.e. with array notation) which is evaluated against each custom resource to produce the value for this column.

.spec.versions[*].additionalPrinterColumns[*].name

string Required

name is a human readable name for the column.

.spec.versions[*].additionalPrinterColumns[*].priority

integer

priority is an integer defining the relative importance of this column compared to others. Lower numbers are considered higher priority. Columns that may be omitted in limited space scenarios should be given a priority greater than 0.

.spec.versions[*].additionalPrinterColumns[*].type

string Required

type is an OpenAPI type definition for this column. See https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#data-types for details.

.spec.versions[*].deprecated

boolean

deprecated indicates this version of the custom resource API is deprecated. When set to true, API requests to this version receive a warning header in the server response. Defaults to false.

.spec.versions[*].deprecationWarning

string

deprecationWarning overrides the default warning returned to API clients. May only be set when deprecated is true. The default warning indicates this version is deprecated and recommends use of the newest served version of equal or greater stability, if one exists.

.spec.versions[*].name

string Required

name is the version name, e.g. “v1”, “v2beta1”, etc. The custom resources are served under this version at /apis/<group>/<version>/... if served is true.

.spec.versions[*].schema

object Required

schema describes the structural schema used for validation, pruning, and defaulting of this version of the custom resource.

.spec.versions[*].served

boolean Required

served is a flag enabling/disabling this version from being served via REST APIs

.spec.versions[*].storage

boolean Required

storage indicates this version should be used when persisting custom resources to storage. There must be exactly one version with storage=true.

.spec.versions[*].subresources

object

subresources specify what subresources this version of the defined custom resource have.

.spec.versions[*].subresources.scale

object

scale indicates the custom resource should serve a /scale subresource that returns an autoscaling/v1 Scale object.

.spec.versions[*].subresources.scale.labelSelectorPath

string

labelSelectorPath defines the JSON path inside of a custom resource that corresponds to Scale status.selector. Only JSON paths without the array notation are allowed. Must be a JSON Path under .status or .spec. Must be set to work with HorizontalPodAutoscaler. The field pointed by this JSON path must be a string field (not a complex selector struct) which contains a serialized label selector in string form. More info: https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions#scale-subresource If there is no value under the given path in the custom resource, the status.selector value in the /scale subresource will default to the empty string.

.spec.versions[*].subresources.scale.specReplicasPath

string Required

specReplicasPath defines the JSON path inside of a custom resource that corresponds to Scale spec.replicas. Only JSON paths without the array notation are allowed. Must be a JSON Path under .spec. If there is no value under the given path in the custom resource, the /scale subresource will return an error on GET.

.spec.versions[*].subresources.scale.statusReplicasPath

string Required

statusReplicasPath defines the JSON path inside of a custom resource that corresponds to Scale status.replicas. Only JSON paths without the array notation are allowed. Must be a JSON Path under .status. If there is no value under the given path in the custom resource, the status.replicas value in the /scale subresource will default to 0.

.spec.versions[*].subresources.status

object

status indicates the custom resource should serve a /status subresource. When enabled: 1. requests to the custom resource primary endpoint ignore changes to the status stanza of the object. 2. requests to the custom resource /status subresource ignore changes to anything other than the status stanza of the object.