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Extend Resources

1 - CustomResourceDefinition

CustomResourceDefinition represents a resource that should be exposed on the API server.

apiVersion: apiextensions.k8s.io/v1

import "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"

CustomResourceDefinition

CustomResourceDefinition represents a resource that should be exposed on the API server. Its name MUST be in the format <.spec.name>.<.spec.group>.

CustomResourceDefinitionSpec

CustomResourceDefinitionSpec describes how a user wants their resource to appear

  • group (string), required

    group is the API group of the defined custom resource. The custom resources are served under /apis/\<group>/.... Must match the name of the CustomResourceDefinition (in the form \<names.plural>.\<group>).

  • names (CustomResourceDefinitionNames), required

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

    CustomResourceDefinitionNames indicates the names to serve this CustomResourceDefinition

    • 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.

    • 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.

    • names.categories ([]string)

      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.

    • names.listKind (string)

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

    • names.shortNames ([]string)

      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.

    • names.singular (string)

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

  • scope (string), required

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

  • versions ([]CustomResourceDefinitionVersion), required

    versions is the list of all API versions of the defined custom resource. Version names are used to compute the order in which served versions are listed in API discovery. If the version string is "kube-like", it will sort above non "kube-like" version strings, which are ordered lexicographically. "Kube-like" versions start with a "v", then are followed by a number (the major version), then optionally the string "alpha" or "beta" and another number (the minor version). These are sorted first by GA > beta > alpha (where GA is a version with no suffix such as beta or alpha), and then by comparing major version, then minor version. An example sorted list of versions: v10, v2, v1, v11beta2, v10beta3, v3beta1, v12alpha1, v11alpha2, foo1, foo10.

    CustomResourceDefinitionVersion describes a version for CRD.

    • 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.

    • versions.served (boolean), required

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

    • 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.

    • versions.additionalPrinterColumns ([]CustomResourceColumnDefinition)

      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.

      CustomResourceColumnDefinition specifies a column for server side printing.

      • 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.

      • versions.additionalPrinterColumns.name (string), required

        name is a human readable name for the column.

      • 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.

      • versions.additionalPrinterColumns.description (string)

        description is a human readable description of this column.

      • 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.

      • versions.additionalPrinterColumns.priority (int32)

        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.

    • 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.

    • 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.

    • versions.schema (CustomResourceValidation)

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

      CustomResourceValidation is a list of validation methods for CustomResources.

      • versions.schema.openAPIV3Schema (JSONSchemaProps)

        openAPIV3Schema is the OpenAPI v3 schema to use for validation and pruning.

    • versions.subresources (CustomResourceSubresources)

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

      CustomResourceSubresources defines the status and scale subresources for CustomResources.

      • versions.subresources.scale (CustomResourceSubresourceScale)

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

        CustomResourceSubresourceScale defines how to serve the scale subresource for CustomResources.

        • 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.

        • 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.

        • 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.

      • versions.subresources.status (CustomResourceSubresourceStatus)

        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.

        CustomResourceSubresourceStatus defines how to serve the status subresource for CustomResources. Status is represented by the .status JSON path inside of a CustomResource. When set, * exposes a /status subresource for the custom resource * PUT requests to the /status subresource take a custom resource object, and ignore changes to anything except the status stanza * PUT/POST/PATCH requests to the custom resource ignore changes to the status stanza

  • conversion (CustomResourceConversion)

    conversion defines conversion settings for the CRD.

    CustomResourceConversion describes how to convert different versions of a CR.

    • 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.

    • conversion.webhook (WebhookConversion)

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

      WebhookConversion describes how to call a conversion webhook

      • conversion.webhook.conversionReviewVersions ([]string), 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.

      • conversion.webhook.clientConfig (WebhookClientConfig)

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

        WebhookClientConfig contains the information to make a TLS connection with the webhook.

        • conversion.webhook.clientConfig.caBundle ([]byte)

          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.

        • conversion.webhook.clientConfig.service (ServiceReference)

          service is a reference to the service for this webhook. Either service or url must be specified.

          If the webhook is running within the cluster, then you should use service.

          ServiceReference holds a reference to Service.legacy.k8s.io

          • conversion.webhook.clientConfig.service.name (string), required

            name is the name of the service. Required

          • conversion.webhook.clientConfig.service.namespace (string), required

            namespace is the namespace of the service. Required

          • conversion.webhook.clientConfig.service.path (string)

            path is an optional URL path at which the webhook will be contacted.

          • conversion.webhook.clientConfig.service.port (int32)

            port is an optional service port at which the webhook will be contacted. port should be a valid port number (1-65535, inclusive). Defaults to 443 for backward compatibility.

        • conversion.webhook.clientConfig.url (string)

          url gives the location of the webhook, in standard URL form (scheme://host:port/path). Exactly one of url or service must be specified.

          The host should not refer to a service running in the cluster; use the service field instead. The host might be resolved via external DNS in some apiservers (e.g., kube-apiserver cannot resolve in-cluster DNS as that would be a layering violation). host may also be an IP address.

          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.

  • preserveUnknownFields (boolean)

    preserveUnknownFields indicates that object fields which are not specified in the OpenAPI schema should be preserved when persisting to storage. apiVersion, kind, metadata and known fields inside metadata are always preserved. This field is deprecated in favor of setting x-preserve-unknown-fields to true in spec.versions[*].schema.openAPIV3Schema. See https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#pruning-versus-preserving-unknown-fields for details.

JSONSchemaProps

JSONSchemaProps is a JSON-Schema following Specification Draft 4 (http://json-schema.org/).

  • $ref (string)

  • $schema (string)

  • additionalItems (JSONSchemaPropsOrBool)

    JSONSchemaPropsOrBool represents JSONSchemaProps or a boolean value. Defaults to true for the boolean property.

  • additionalProperties (JSONSchemaPropsOrBool)

    JSONSchemaPropsOrBool represents JSONSchemaProps or a boolean value. Defaults to true for the boolean property.

  • allOf ([]JSONSchemaProps)

  • anyOf ([]JSONSchemaProps)

  • default (JSON)

    default is a default value for undefined object fields. Defaulting is a beta feature under the CustomResourceDefaulting feature gate. Defaulting requires spec.preserveUnknownFields to be false.

    JSON represents any valid JSON value. These types are supported: bool, int64, float64, string, []interface{}, map[string]interface{} and nil.

  • definitions (map[string]JSONSchemaProps)

  • dependencies (map[string]JSONSchemaPropsOrStringArray)

    JSONSchemaPropsOrStringArray represents a JSONSchemaProps or a string array.

  • description (string)

  • enum ([]JSON)

    JSON represents any valid JSON value. These types are supported: bool, int64, float64, string, []interface{}, map[string]interface{} and nil.

  • example (JSON)

    JSON represents any valid JSON value. These types are supported: bool, int64, float64, string, []interface{}, map[string]interface{} and nil.

  • exclusiveMaximum (boolean)

  • exclusiveMinimum (boolean)

  • externalDocs (ExternalDocumentation)

    ExternalDocumentation allows referencing an external resource for extended documentation.

    • externalDocs.description (string)

    • externalDocs.url (string)

  • format (string)

    format is an OpenAPI v3 format string. Unknown formats are ignored. The following formats are validated:

    • bsonobjectid: a bson object ID, i.e. a 24 characters hex string - uri: an URI as parsed by Golang net/url.ParseRequestURI - email: an email address as parsed by Golang net/mail.ParseAddress - hostname: a valid representation for an Internet host name, as defined by RFC 1034, section 3.1 [RFC1034]. - ipv4: an IPv4 IP as parsed by Golang net.ParseIP - ipv6: an IPv6 IP as parsed by Golang net.ParseIP - cidr: a CIDR as parsed by Golang net.ParseCIDR - mac: a MAC address as parsed by Golang net.ParseMAC - uuid: an UUID that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?[0-9a-f]{4}-?[0-9a-f]{4}-?[0-9a-f]{12}$ - uuid3: an UUID3 that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?3[0-9a-f]{3}-?[0-9a-f]{4}-?[0-9a-f]{12}$ - uuid4: an UUID4 that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?4[0-9a-f]{3}-?[89ab][0-9a-f]{3}-?[0-9a-f]{12}$ - uuid5: an UUID5 that allows uppercase defined by the regex (?i)^[0-9a-f]{8}-?[0-9a-f]{4}-?5[0-9a-f]{3}-?[89ab][0-9a-f]{3}-?[0-9a-f]{12}$ - isbn: an ISBN10 or ISBN13 number string like "0321751043" or "978-0321751041" - isbn10: an ISBN10 number string like "0321751043" - isbn13: an ISBN13 number string like "978-0321751041" - creditcard: a credit card number defined by the regex ^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$ with any non digit characters mixed in - ssn: a U.S. social security number following the regex ^\d{3}[- ]?\d{2}[- ]?\d{4}$ - hexcolor: an hexadecimal color code like "#FFFFFF: following the regex ^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$ - rgbcolor: an RGB color code like rgb like "rgb(255,255,2559" - byte: base64 encoded binary data - password: any kind of string - date: a date string like "2006-01-02" as defined by full-date in RFC3339 - duration: a duration string like "22 ns" as parsed by Golang time.ParseDuration or compatible with Scala duration format - datetime: a date time string like "2014-12-15T19:30:20.000Z" as defined by date-time in RFC3339.

  • id (string)

  • items (JSONSchemaPropsOrArray)

    JSONSchemaPropsOrArray represents a value that can either be a JSONSchemaProps or an array of JSONSchemaProps. Mainly here for serialization purposes.

  • maxItems (int64)

  • maxLength (int64)

  • maxProperties (int64)

  • maximum (double)

  • minItems (int64)

  • minLength (int64)

  • minProperties (int64)

  • minimum (double)

  • multipleOf (double)

  • not (JSONSchemaProps)

  • nullable (boolean)

  • oneOf ([]JSONSchemaProps)

  • pattern (string)

  • patternProperties (map[string]JSONSchemaProps)

  • properties (map[string]JSONSchemaProps)

  • required ([]string)

  • title (string)

  • type (string)

  • uniqueItems (boolean)

  • x-kubernetes-embedded-resource (boolean)

    x-kubernetes-embedded-resource defines that the value is an embedded Kubernetes runtime.Object, with TypeMeta and ObjectMeta. The type must be object. It is allowed to further restrict the embedded object. kind, apiVersion and metadata are validated automatically. x-kubernetes-preserve-unknown-fields is allowed to be true, but does not have to be if the object is fully specified (up to kind, apiVersion, metadata).

  • x-kubernetes-int-or-string (boolean)

    x-kubernetes-int-or-string specifies that this value is either an integer or a string. If this is true, an empty type is allowed and type as child of anyOf is permitted if following one of the following patterns:

    1. anyOf:
      • type: integer
      • type: string
    2. allOf:
      • anyOf:
        • type: integer
        • type: string
      • ... zero or more

  • x-kubernetes-list-map-keys ([]string)

    x-kubernetes-list-map-keys annotates an array with the x-kubernetes-list-type map by specifying the keys used as the index of the map.

    This tag MUST only be used on lists that have the "x-kubernetes-list-type" extension set to "map". Also, the values specified for this attribute must be a scalar typed field of the child structure (no nesting is supported).

    The properties specified must either be required or have a default value, to ensure those properties are present for all list items.

  • x-kubernetes-list-type (string)

    x-kubernetes-list-type annotates an array to further describe its topology. This extension must only be used on lists and may have 3 possible values:

    1. atomic: the list is treated as a single entity, like a scalar. Atomic lists will be entirely replaced when updated. This extension may be used on any type of list (struct, scalar, ...).
    2. set: Sets are lists that must not have multiple items with the same value. Each value must be a scalar, an object with x-kubernetes-map-type atomic or an array with x-kubernetes-list-type atomic.
    3. map: These lists are like maps in that their elements have a non-index key used to identify them. Order is preserved upon merge. The map tag must only be used on a list with elements of type object. Defaults to atomic for arrays.

  • x-kubernetes-map-type (string)

    x-kubernetes-map-type annotates an object to further describe its topology. This extension must only be used when type is object and may have 2 possible values:

    1. granular: These maps are actual maps (key-value pairs) and each fields are independent from each other (they can each be manipulated by separate actors). This is the default behaviour for all maps.
    2. atomic: the list is treated as a single entity, like a scalar. Atomic maps will be entirely replaced when updated.

  • x-kubernetes-preserve-unknown-fields (boolean)

    x-kubernetes-preserve-unknown-fields stops the API server decoding step from pruning fields which are not specified in the validation schema. This affects fields recursively, but switches back to normal pruning behaviour if nested properties or additionalProperties are specified in the schema. This can either be true or undefined. False is forbidden.

CustomResourceDefinitionStatus

CustomResourceDefinitionStatus indicates the state of the CustomResourceDefinition

  • acceptedNames (CustomResourceDefinitionNames)

    acceptedNames are the names that are actually being used to serve discovery. They may be different than the names in spec.

    CustomResourceDefinitionNames indicates the names to serve this CustomResourceDefinition

    • acceptedNames.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.

    • acceptedNames.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.

    • acceptedNames.categories ([]string)

      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.

    • acceptedNames.listKind (string)

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

    • acceptedNames.shortNames ([]string)

      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.

    • acceptedNames.singular (string)

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

  • conditions ([]CustomResourceDefinitionCondition)

    Map: unique values on key type will be kept during a merge

    conditions indicate state for particular aspects of a CustomResourceDefinition

    CustomResourceDefinitionCondition contains details for the current condition of this pod.

    • conditions.status (string), required

      status is the status of the condition. Can be True, False, Unknown.

    • conditions.type (string), required

      type is the type of the condition. Types include Established, NamesAccepted and Terminating.

    • conditions.lastTransitionTime (Time)

      lastTransitionTime last time the condition transitioned from one status to another.

      Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

    • conditions.message (string)

      message is a human-readable message indicating details about last transition.

    • conditions.reason (string)

      reason is a unique, one-word, CamelCase reason for the condition's last transition.

  • storedVersions ([]string)

    storedVersions lists all versions of CustomResources that were ever persisted. Tracking these versions allows a migration path for stored versions in etcd. The field is mutable so a migration controller can finish a migration to another version (ensuring no old objects are left in storage), and then remove the rest of the versions from this list. Versions may not be removed from spec.versions while they exist in this list.

CustomResourceDefinitionList

CustomResourceDefinitionList is a list of CustomResourceDefinition objects.

Operations

get read the specified CustomResourceDefinition

HTTP Request

GET /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}

Parameters

  • name (in path): string, required

    name of the CustomResourceDefinition

  • pretty (in query): string

    pretty

Response

200 (CustomResourceDefinition): OK

401: Unauthorized

get read status of the specified CustomResourceDefinition

HTTP Request

GET /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}/status

Parameters

  • name (in path): string, required

    name of the CustomResourceDefinition

  • pretty (in query): string

    pretty

Response

200 (CustomResourceDefinition): OK

401: Unauthorized

list list or watch objects of kind CustomResourceDefinition

HTTP Request

GET /apis/apiextensions.k8s.io/v1/customresourcedefinitions

Parameters

Response

200 (CustomResourceDefinitionList): OK

401: Unauthorized

create create a CustomResourceDefinition

HTTP Request

POST /apis/apiextensions.k8s.io/v1/customresourcedefinitions

Parameters

Response

200 (CustomResourceDefinition): OK

201 (CustomResourceDefinition): Created

202 (CustomResourceDefinition): Accepted

401: Unauthorized

update replace the specified CustomResourceDefinition

HTTP Request

PUT /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}

Parameters

Response

200 (CustomResourceDefinition): OK

201 (CustomResourceDefinition): Created

401: Unauthorized

update replace status of the specified CustomResourceDefinition

HTTP Request

PUT /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}/status

Parameters

Response

200 (CustomResourceDefinition): OK

201 (CustomResourceDefinition): Created

401: Unauthorized

patch partially update the specified CustomResourceDefinition

HTTP Request

PATCH /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}

Parameters

  • name (in path): string, required

    name of the CustomResourceDefinition

  • body: Patch, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • force (in query): boolean

    force

  • pretty (in query): string

    pretty

Response

200 (CustomResourceDefinition): OK

201 (CustomResourceDefinition): Created

401: Unauthorized

patch partially update status of the specified CustomResourceDefinition

HTTP Request

PATCH /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}/status

Parameters

  • name (in path): string, required

    name of the CustomResourceDefinition

  • body: Patch, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • force (in query): boolean

    force

  • pretty (in query): string

    pretty

Response

200 (CustomResourceDefinition): OK

201 (CustomResourceDefinition): Created

401: Unauthorized

delete delete a CustomResourceDefinition

HTTP Request

DELETE /apis/apiextensions.k8s.io/v1/customresourcedefinitions/{name}

Parameters

Response

200 (Status): OK

202 (Status): Accepted

401: Unauthorized

deletecollection delete collection of CustomResourceDefinition

HTTP Request

DELETE /apis/apiextensions.k8s.io/v1/customresourcedefinitions

Parameters

Response

200 (Status): OK

401: Unauthorized

2 - MutatingWebhookConfiguration

MutatingWebhookConfiguration describes the configuration of and admission webhook that accept or reject and may change the object.

apiVersion: admissionregistration.k8s.io/v1

import "k8s.io/api/admissionregistration/v1"

MutatingWebhookConfiguration

MutatingWebhookConfiguration describes the configuration of and admission webhook that accept or reject and may change the object.

  • apiVersion: admissionregistration.k8s.io/v1

  • kind: MutatingWebhookConfiguration

  • metadata (ObjectMeta)

    Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.

  • webhooks ([]MutatingWebhook)

    Patch strategy: merge on key name

    Webhooks is a list of webhooks and the affected resources and operations.

    MutatingWebhook describes an admission webhook and the resources and operations it applies to.

    • webhooks.admissionReviewVersions ([]string), required

      AdmissionReviewVersions is an ordered list of preferred AdmissionReview versions the Webhook expects. API server will try to use first version in the list which it supports. If none of the versions specified in this list supported by API server, validation will fail for this object. 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 and be subject to the failure policy.

    • webhooks.clientConfig (WebhookClientConfig), required

      ClientConfig defines how to communicate with the hook. Required

      WebhookClientConfig contains the information to make a TLS connection with the webhook

      • webhooks.clientConfig.caBundle ([]byte)

        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.

      • webhooks.clientConfig.service (ServiceReference)

        service is a reference to the service for this webhook. Either service or url must be specified.

        If the webhook is running within the cluster, then you should use service.

        ServiceReference holds a reference to Service.legacy.k8s.io

        • webhooks.clientConfig.service.name (string), required

          name is the name of the service. Required

        • webhooks.clientConfig.service.namespace (string), required

          namespace is the namespace of the service. Required

        • webhooks.clientConfig.service.path (string)

          path is an optional URL path which will be sent in any request to this service.

        • webhooks.clientConfig.service.port (int32)

          If specified, the port on the service that hosting webhook. Default to 443 for backward compatibility. port should be a valid port number (1-65535, inclusive).

      • webhooks.clientConfig.url (string)

        url gives the location of the webhook, in standard URL form (scheme://host:port/path). Exactly one of url or service must be specified.

        The host should not refer to a service running in the cluster; use the service field instead. The host might be resolved via external DNS in some apiservers (e.g., kube-apiserver cannot resolve in-cluster DNS as that would be a layering violation). host may also be an IP address.

        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.

    • webhooks.name (string), required

      The name of the admission webhook. Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where "imagepolicy" is the name of the webhook, and kubernetes.io is the name of the organization. Required.

    • webhooks.sideEffects (string), required

      SideEffects states whether this webhook has side effects. Acceptable values are: None, NoneOnDryRun (webhooks created via v1beta1 may also specify Some or Unknown). Webhooks with side effects MUST implement a reconciliation system, since a request may be rejected by a future step in the admission chain and the side effects therefore need to be undone. Requests with the dryRun attribute will be auto-rejected if they match a webhook with sideEffects == Unknown or Some.

    • webhooks.failurePolicy (string)

      FailurePolicy defines how unrecognized errors from the admission endpoint are handled - allowed values are Ignore or Fail. Defaults to Fail.

    • webhooks.matchPolicy (string)

      matchPolicy defines how the "rules" list is used to match incoming requests. Allowed values are "Exact" or "Equivalent".

      • Exact: match a request only if it exactly matches a specified rule. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, but "rules" only included apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"], a request to apps/v1beta1 or extensions/v1beta1 would not be sent to the webhook.

      • Equivalent: match a request if modifies a resource listed in rules, even via another API group or version. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, and "rules" only included apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"], a request to apps/v1beta1 or extensions/v1beta1 would be converted to apps/v1 and sent to the webhook.

      Defaults to "Equivalent"

    • webhooks.namespaceSelector (LabelSelector)

      NamespaceSelector decides whether to run the webhook on an object based on whether the namespace for that object matches the selector. If the object itself is a namespace, the matching is performed on object.metadata.labels. If the object is another cluster scoped resource, it never skips the webhook.

      For example, to run the webhook on any objects whose namespace is not associated with "runlevel" of "0" or "1"; you will set the selector as follows: "namespaceSelector": { "matchExpressions": [ { "key": "runlevel", "operator": "NotIn", "values": [ "0", "1" ] } ] }

      If instead you want to only run the webhook on any objects whose namespace is associated with the "environment" of "prod" or "staging"; you will set the selector as follows: "namespaceSelector": { "matchExpressions": [ { "key": "environment", "operator": "In", "values": [ "prod", "staging" ] } ] }

      See https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/ for more examples of label selectors.

      Default to the empty LabelSelector, which matches everything.

    • webhooks.objectSelector (LabelSelector)

      ObjectSelector decides whether to run the webhook based on if the object has matching labels. objectSelector is evaluated against both the oldObject and newObject that would be sent to the webhook, and is considered to match if either object matches the selector. A null object (oldObject in the case of create, or newObject in the case of delete) or an object that cannot have labels (like a DeploymentRollback or a PodProxyOptions object) is not considered to match. Use the object selector only if the webhook is opt-in, because end users may skip the admission webhook by setting the labels. Default to the empty LabelSelector, which matches everything.

    • webhooks.reinvocationPolicy (string)

      reinvocationPolicy indicates whether this webhook should be called multiple times as part of a single admission evaluation. Allowed values are "Never" and "IfNeeded".

      Never: the webhook will not be called more than once in a single admission evaluation.

      IfNeeded: the webhook will be called at least one additional time as part of the admission evaluation if the object being admitted is modified by other admission plugins after the initial webhook call. Webhooks that specify this option must be idempotent, able to process objects they previously admitted. Note: * the number of additional invocations is not guaranteed to be exactly one. * if additional invocations result in further modifications to the object, webhooks are not guaranteed to be invoked again. * webhooks that use this option may be reordered to minimize the number of additional invocations. * to validate an object after all mutations are guaranteed complete, use a validating admission webhook instead.

      Defaults to "Never".

    • webhooks.rules ([]RuleWithOperations)

      Rules describes what operations on what resources/subresources the webhook cares about. The webhook cares about an operation if it matches any Rule. However, in order to prevent ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks from putting the cluster in a state which cannot be recovered from without completely disabling the plugin, ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks are never called on admission requests for ValidatingWebhookConfiguration and MutatingWebhookConfiguration objects.

      RuleWithOperations is a tuple of Operations and Resources. It is recommended to make sure that all the tuple expansions are valid.

      • webhooks.rules.apiGroups ([]string)

        APIGroups is the API groups the resources belong to. '' is all groups. If '' is present, the length of the slice must be one. Required.

      • webhooks.rules.apiVersions ([]string)

        APIVersions is the API versions the resources belong to. '' is all versions. If '' is present, the length of the slice must be one. Required.

      • webhooks.rules.operations ([]string)

        Operations is the operations the admission hook cares about - CREATE, UPDATE, DELETE, CONNECT or * for all of those operations and any future admission operations that are added. If '*' is present, the length of the slice must be one. Required.

      • webhooks.rules.resources ([]string)

        Resources is a list of resources this rule applies to.

        For example: 'pods' means pods. 'pods/log' means the log subresource of pods. '' means all resources, but not subresources. 'pods/' means all subresources of pods. '/scale' means all scale subresources. '/*' means all resources and their subresources.

        If wildcard is present, the validation rule will ensure resources do not overlap with each other.

        Depending on the enclosing object, subresources might not be allowed. Required.

      • webhooks.rules.scope (string)

        scope specifies the scope of this rule. Valid values are "Cluster", "Namespaced", and "" "Cluster" means that only cluster-scoped resources will match this rule. Namespace API objects are cluster-scoped. "Namespaced" means that only namespaced resources will match this rule. "" means that there are no scope restrictions. Subresources match the scope of their parent resource. Default is "*".

    • webhooks.timeoutSeconds (int32)

      TimeoutSeconds specifies the timeout for this webhook. After the timeout passes, the webhook call will be ignored or the API call will fail based on the failure policy. The timeout value must be between 1 and 30 seconds. Default to 10 seconds.

MutatingWebhookConfigurationList

MutatingWebhookConfigurationList is a list of MutatingWebhookConfiguration.

Operations

get read the specified MutatingWebhookConfiguration

HTTP Request

GET /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations/{name}

Parameters

  • name (in path): string, required

    name of the MutatingWebhookConfiguration

  • pretty (in query): string

    pretty

Response

200 (MutatingWebhookConfiguration): OK

401: Unauthorized

list list or watch objects of kind MutatingWebhookConfiguration

HTTP Request

GET /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations

Parameters

Response

200 (MutatingWebhookConfigurationList): OK

401: Unauthorized

create create a MutatingWebhookConfiguration

HTTP Request

POST /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations

Parameters

Response

200 (MutatingWebhookConfiguration): OK

201 (MutatingWebhookConfiguration): Created

202 (MutatingWebhookConfiguration): Accepted

401: Unauthorized

update replace the specified MutatingWebhookConfiguration

HTTP Request

PUT /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations/{name}

Parameters

Response

200 (MutatingWebhookConfiguration): OK

201 (MutatingWebhookConfiguration): Created

401: Unauthorized

patch partially update the specified MutatingWebhookConfiguration

HTTP Request

PATCH /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations/{name}

Parameters

  • name (in path): string, required

    name of the MutatingWebhookConfiguration

  • body: Patch, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • force (in query): boolean

    force

  • pretty (in query): string

    pretty

Response

200 (MutatingWebhookConfiguration): OK

201 (MutatingWebhookConfiguration): Created

401: Unauthorized

delete delete a MutatingWebhookConfiguration

HTTP Request

DELETE /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations/{name}

Parameters

Response

200 (Status): OK

202 (Status): Accepted

401: Unauthorized

deletecollection delete collection of MutatingWebhookConfiguration

HTTP Request

DELETE /apis/admissionregistration.k8s.io/v1/mutatingwebhookconfigurations

Parameters

Response

200 (Status): OK

401: Unauthorized

3 - ValidatingWebhookConfiguration

ValidatingWebhookConfiguration describes the configuration of and admission webhook that accept or reject and object without changing it.

apiVersion: admissionregistration.k8s.io/v1

import "k8s.io/api/admissionregistration/v1"

ValidatingWebhookConfiguration

ValidatingWebhookConfiguration describes the configuration of and admission webhook that accept or reject and object without changing it.

  • apiVersion: admissionregistration.k8s.io/v1

  • kind: ValidatingWebhookConfiguration

  • metadata (ObjectMeta)

    Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.

  • webhooks ([]ValidatingWebhook)

    Patch strategy: merge on key name

    Webhooks is a list of webhooks and the affected resources and operations.

    ValidatingWebhook describes an admission webhook and the resources and operations it applies to.

    • webhooks.admissionReviewVersions ([]string), required

      AdmissionReviewVersions is an ordered list of preferred AdmissionReview versions the Webhook expects. API server will try to use first version in the list which it supports. If none of the versions specified in this list supported by API server, validation will fail for this object. 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 and be subject to the failure policy.

    • webhooks.clientConfig (WebhookClientConfig), required

      ClientConfig defines how to communicate with the hook. Required

      WebhookClientConfig contains the information to make a TLS connection with the webhook

      • webhooks.clientConfig.caBundle ([]byte)

        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.

      • webhooks.clientConfig.service (ServiceReference)

        service is a reference to the service for this webhook. Either service or url must be specified.

        If the webhook is running within the cluster, then you should use service.

        ServiceReference holds a reference to Service.legacy.k8s.io

        • webhooks.clientConfig.service.name (string), required

          name is the name of the service. Required

        • webhooks.clientConfig.service.namespace (string), required

          namespace is the namespace of the service. Required

        • webhooks.clientConfig.service.path (string)

          path is an optional URL path which will be sent in any request to this service.

        • webhooks.clientConfig.service.port (int32)

          If specified, the port on the service that hosting webhook. Default to 443 for backward compatibility. port should be a valid port number (1-65535, inclusive).

      • webhooks.clientConfig.url (string)

        url gives the location of the webhook, in standard URL form (scheme://host:port/path). Exactly one of url or service must be specified.

        The host should not refer to a service running in the cluster; use the service field instead. The host might be resolved via external DNS in some apiservers (e.g., kube-apiserver cannot resolve in-cluster DNS as that would be a layering violation). host may also be an IP address.

        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.

    • webhooks.name (string), required

      The name of the admission webhook. Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where "imagepolicy" is the name of the webhook, and kubernetes.io is the name of the organization. Required.

    • webhooks.sideEffects (string), required

      SideEffects states whether this webhook has side effects. Acceptable values are: None, NoneOnDryRun (webhooks created via v1beta1 may also specify Some or Unknown). Webhooks with side effects MUST implement a reconciliation system, since a request may be rejected by a future step in the admission chain and the side effects therefore need to be undone. Requests with the dryRun attribute will be auto-rejected if they match a webhook with sideEffects == Unknown or Some.

    • webhooks.failurePolicy (string)

      FailurePolicy defines how unrecognized errors from the admission endpoint are handled - allowed values are Ignore or Fail. Defaults to Fail.

    • webhooks.matchPolicy (string)

      matchPolicy defines how the "rules" list is used to match incoming requests. Allowed values are "Exact" or "Equivalent".

      • Exact: match a request only if it exactly matches a specified rule. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, but "rules" only included apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"], a request to apps/v1beta1 or extensions/v1beta1 would not be sent to the webhook.

      • Equivalent: match a request if modifies a resource listed in rules, even via another API group or version. For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1, and "rules" only included apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"], a request to apps/v1beta1 or extensions/v1beta1 would be converted to apps/v1 and sent to the webhook.

      Defaults to "Equivalent"

    • webhooks.namespaceSelector (LabelSelector)

      NamespaceSelector decides whether to run the webhook on an object based on whether the namespace for that object matches the selector. If the object itself is a namespace, the matching is performed on object.metadata.labels. If the object is another cluster scoped resource, it never skips the webhook.

      For example, to run the webhook on any objects whose namespace is not associated with "runlevel" of "0" or "1"; you will set the selector as follows: "namespaceSelector": { "matchExpressions": [ { "key": "runlevel", "operator": "NotIn", "values": [ "0", "1" ] } ] }

      If instead you want to only run the webhook on any objects whose namespace is associated with the "environment" of "prod" or "staging"; you will set the selector as follows: "namespaceSelector": { "matchExpressions": [ { "key": "environment", "operator": "In", "values": [ "prod", "staging" ] } ] }

      See https://kubernetes.io/docs/concepts/overview/working-with-objects/labels for more examples of label selectors.

      Default to the empty LabelSelector, which matches everything.

    • webhooks.objectSelector (LabelSelector)

      ObjectSelector decides whether to run the webhook based on if the object has matching labels. objectSelector is evaluated against both the oldObject and newObject that would be sent to the webhook, and is considered to match if either object matches the selector. A null object (oldObject in the case of create, or newObject in the case of delete) or an object that cannot have labels (like a DeploymentRollback or a PodProxyOptions object) is not considered to match. Use the object selector only if the webhook is opt-in, because end users may skip the admission webhook by setting the labels. Default to the empty LabelSelector, which matches everything.

    • webhooks.rules ([]RuleWithOperations)

      Rules describes what operations on what resources/subresources the webhook cares about. The webhook cares about an operation if it matches any Rule. However, in order to prevent ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks from putting the cluster in a state which cannot be recovered from without completely disabling the plugin, ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks are never called on admission requests for ValidatingWebhookConfiguration and MutatingWebhookConfiguration objects.

      RuleWithOperations is a tuple of Operations and Resources. It is recommended to make sure that all the tuple expansions are valid.

      • webhooks.rules.apiGroups ([]string)

        APIGroups is the API groups the resources belong to. '' is all groups. If '' is present, the length of the slice must be one. Required.

      • webhooks.rules.apiVersions ([]string)

        APIVersions is the API versions the resources belong to. '' is all versions. If '' is present, the length of the slice must be one. Required.

      • webhooks.rules.operations ([]string)

        Operations is the operations the admission hook cares about - CREATE, UPDATE, DELETE, CONNECT or * for all of those operations and any future admission operations that are added. If '*' is present, the length of the slice must be one. Required.

      • webhooks.rules.resources ([]string)

        Resources is a list of resources this rule applies to.

        For example: 'pods' means pods. 'pods/log' means the log subresource of pods. '' means all resources, but not subresources. 'pods/' means all subresources of pods. '/scale' means all scale subresources. '/*' means all resources and their subresources.

        If wildcard is present, the validation rule will ensure resources do not overlap with each other.

        Depending on the enclosing object, subresources might not be allowed. Required.

      • webhooks.rules.scope (string)

        scope specifies the scope of this rule. Valid values are "Cluster", "Namespaced", and "" "Cluster" means that only cluster-scoped resources will match this rule. Namespace API objects are cluster-scoped. "Namespaced" means that only namespaced resources will match this rule. "" means that there are no scope restrictions. Subresources match the scope of their parent resource. Default is "*".

    • webhooks.timeoutSeconds (int32)

      TimeoutSeconds specifies the timeout for this webhook. After the timeout passes, the webhook call will be ignored or the API call will fail based on the failure policy. The timeout value must be between 1 and 30 seconds. Default to 10 seconds.

ValidatingWebhookConfigurationList

ValidatingWebhookConfigurationList is a list of ValidatingWebhookConfiguration.

Operations

get read the specified ValidatingWebhookConfiguration

HTTP Request

GET /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations/{name}

Parameters

  • name (in path): string, required

    name of the ValidatingWebhookConfiguration

  • pretty (in query): string

    pretty

Response

200 (ValidatingWebhookConfiguration): OK

401: Unauthorized

list list or watch objects of kind ValidatingWebhookConfiguration

HTTP Request

GET /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations

Parameters

Response

200 (ValidatingWebhookConfigurationList): OK

401: Unauthorized

create create a ValidatingWebhookConfiguration

HTTP Request

POST /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations

Parameters

Response

200 (ValidatingWebhookConfiguration): OK

201 (ValidatingWebhookConfiguration): Created

202 (ValidatingWebhookConfiguration): Accepted

401: Unauthorized

update replace the specified ValidatingWebhookConfiguration

HTTP Request

PUT /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations/{name}

Parameters

Response

200 (ValidatingWebhookConfiguration): OK

201 (ValidatingWebhookConfiguration): Created

401: Unauthorized

patch partially update the specified ValidatingWebhookConfiguration

HTTP Request

PATCH /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations/{name}

Parameters

  • name (in path): string, required

    name of the ValidatingWebhookConfiguration

  • body: Patch, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • force (in query): boolean

    force

  • pretty (in query): string

    pretty

Response

200 (ValidatingWebhookConfiguration): OK

201 (ValidatingWebhookConfiguration): Created

401: Unauthorized

delete delete a ValidatingWebhookConfiguration

HTTP Request

DELETE /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations/{name}

Parameters

Response

200 (Status): OK

202 (Status): Accepted

401: Unauthorized

deletecollection delete collection of ValidatingWebhookConfiguration

HTTP Request

DELETE /apis/admissionregistration.k8s.io/v1/validatingwebhookconfigurations

Parameters

Response

200 (Status): OK

401: Unauthorized