Kubernetes Services GatewayClass API

openapi: 3.1.0
info:
  title: Kubernetes Services Kubernetes EndpointSlices GatewayClass API
  description: The Kubernetes EndpointSlices API tracks the IP addresses, ports, readiness, and topology information for Pods backing a Service. EndpointSlices replaced the older Endpoints API to improve scalability for large clusters with thousands of pods. A single Service may be backed by multiple EndpointSlices, and the EndpointSlice controller automatically manages their lifecycle in response to pod and Service changes.
  version: v1.32.0
  contact:
    name: Kubernetes Community
    url: https://kubernetes.io/community/
  termsOfService: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: https://kubernetes.default.svc
  description: In-cluster Kubernetes API Server
security:
- bearerAuth: []
- clientCertificate: []
tags:
- name: GatewayClass
  description: GatewayClass resources defining a class of gateway implementations. Cluster-scoped resources that link to a specific ingress or mesh controller.
paths:
  /apis/gateway.networking.k8s.io/v1/gatewayclasses:
    get:
      operationId: listGatewayClasses
      summary: Kubernetes Services List GatewayClasses
      description: Returns a list of all GatewayClass resources in the cluster. GatewayClasses are cluster-scoped and identify gateway controller implementations available for use by Gateway resources.
      tags:
      - GatewayClass
      parameters:
      - $ref: '#/components/parameters/LabelSelector'
      - $ref: '#/components/parameters/Limit'
      - $ref: '#/components/parameters/Watch'
      responses:
        '200':
          description: List of GatewayClass resources
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayClassList'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createGatewayClass
      summary: Kubernetes Services Create a GatewayClass
      description: Creates a new GatewayClass resource. GatewayClasses are typically managed by infrastructure providers and installed when a gateway controller is deployed in the cluster.
      tags:
      - GatewayClass
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/GatewayClass'
      responses:
        '201':
          description: GatewayClass created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayClass'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /apis/gateway.networking.k8s.io/v1/gatewayclasses/{name}:
    get:
      operationId: getGatewayClass
      summary: Kubernetes Services Get a GatewayClass
      description: Returns the specified GatewayClass including the controller name, parameters reference, and the current Accepted condition.
      tags:
      - GatewayClass
      parameters:
      - $ref: '#/components/parameters/NameParam'
      responses:
        '200':
          description: GatewayClass details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayClass'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteGatewayClass
      summary: Kubernetes Services Delete a GatewayClass
      description: Deletes the specified GatewayClass. Gateways referencing this class will lose their controller association.
      tags:
      - GatewayClass
      parameters:
      - $ref: '#/components/parameters/NameParam'
      responses:
        '200':
          description: GatewayClass deleted
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayClass'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    GatewayClass:
      type: object
      description: A GatewayClass is a cluster-scoped resource that defines a class of gateway implementations, linking to a specific gateway controller via the controllerName field. Infrastructure providers create GatewayClasses when deploying their gateway controller.
      properties:
        apiVersion:
          type: string
          const: gateway.networking.k8s.io/v1
        kind:
          type: string
          const: GatewayClass
        metadata:
          $ref: '#/components/schemas/ObjectMeta'
        spec:
          type: object
          description: GatewayClass specification.
          required:
          - controllerName
          properties:
            controllerName:
              type: string
              description: 'Domain-prefixed path identifying the gateway controller implementing this class. Example: gateway.nginx.org/nginx-gateway.'
            parametersRef:
              type: object
              description: Reference to a provider-specific resource containing controller configuration parameters.
              properties:
                group:
                  type: string
                kind:
                  type: string
                name:
                  type: string
                namespace:
                  type: string
        status:
          type: object
          description: Current status of the GatewayClass.
          properties:
            conditions:
              type: array
              items:
                $ref: '#/components/schemas/Condition'
    ObjectMeta:
      type: object
      description: Standard Kubernetes object metadata.
      properties:
        name:
          type: string
          description: Name of the object.
        namespace:
          type: string
          description: Namespace of the object.
        uid:
          type: string
          description: Unique server-assigned identifier.
        resourceVersion:
          type: string
          description: Internal version string.
        creationTimestamp:
          type: string
          format: date-time
          description: Creation timestamp.
        labels:
          type: object
          additionalProperties:
            type: string
          description: Label key-value pairs.
        annotations:
          type: object
          additionalProperties:
            type: string
          description: Non-identifying metadata.
    Status:
      type: object
      description: Error or result status.
      properties:
        code:
          type: integer
        message:
          type: string
        reason:
          type: string
        status:
          type: string
          enum:
          - Success
          - Failure
    Condition:
      type: object
      description: A condition expressing an aspect of current resource state.
      required:
      - type
      - status
      properties:
        type:
          type: string
          description: Type of condition.
        status:
          type: string
          enum:
          - 'True'
          - 'False'
          - Unknown
        reason:
          type: string
          description: Machine-readable reason for the condition.
        message:
          type: string
          description: Human-readable condition details.
        lastTransitionTime:
          type: string
          format: date-time
    ListMeta:
      type: object
      description: Metadata for list responses.
      properties:
        resourceVersion:
          type: string
        continue:
          type: string
        remainingItemCount:
          type: integer
    GatewayClassList:
      type: object
      description: A list of GatewayClass resources.
      required:
      - items
      properties:
        apiVersion:
          type: string
        kind:
          type: string
          const: GatewayClassList
        metadata:
          $ref: '#/components/schemas/ListMeta'
        items:
          type: array
          items:
            $ref: '#/components/schemas/GatewayClass'
  responses:
    NotFound:
      description: Not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Status'
    BadRequest:
      description: Bad request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Status'
    Unauthorized:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Status'
  parameters:
    LabelSelector:
      name: labelSelector
      in: query
      description: Label selector to filter resources.
      schema:
        type: string
    NameParam:
      name: name
      in: path
      required: true
      description: Name of the resource.
      schema:
        type: string
    Watch:
      name: watch
      in: query
      description: If true, stream watch events.
      schema:
        type: boolean
    Limit:
      name: limit
      in: query
      description: Maximum number of items to return.
      schema:
        type: integer
        minimum: 1
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Kubernetes service account or user bearer token.
    clientCertificate:
      type: mutualTLS
      description: Client TLS certificate signed by the cluster CA.
externalDocs:
  description: Kubernetes EndpointSlice API Reference
  url: https://kubernetes.io/docs/reference/kubernetes-api/service-resources/endpoint-slice-v1/