openapi: 3.1.0
info:
  title: Istio Extensions AuthorizationPolicy Gateway API
  description: The Istio Extensions API (extensions.istio.io) provides configuration resources for extending the Istio service mesh with custom functionality. The WasmPlugin resource enables deploying WebAssembly (Wasm) modules as plugins to the Envoy sidecar proxies, allowing custom processing of network traffic at various phases of the request lifecycle. These resources are defined as Kubernetes Custom Resource Definitions (CRDs) and are accessed via the Kubernetes API server.
  version: v1alpha1
  contact:
    name: Istio
    url: https://istio.io/
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: https://{cluster}/apis/extensions.istio.io/v1alpha1
  description: Kubernetes API server endpoint for Istio Extensions v1alpha1
  variables:
    cluster:
      default: kubernetes.default.svc
      description: Kubernetes API server hostname
tags:
- name: Gateway
  description: Load balancer configuration at the edge of the mesh
  externalDocs:
    url: https://istio.io/latest/docs/reference/config/networking/gateway/
paths:
  /namespaces/{namespace}/gateways:
    get:
      operationId: listGateways
      summary: Istio List Gateways
      description: List all Gateway resources in the specified namespace. A Gateway describes a load balancer operating at the edge of the mesh receiving incoming or outgoing HTTP/TCP connections, specifying which ports should be exposed, what protocol to use, and the SNI configuration for the load balancer.
      tags:
      - Gateway
      parameters:
      - $ref: '#/components/parameters/namespace'
      - $ref: '#/components/parameters/labelSelector'
      - $ref: '#/components/parameters/limit'
      - $ref: '#/components/parameters/continue'
      responses:
        '200':
          description: Successful response containing list of Gateways
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GatewayList'
        '401':
          description: Unauthorized
    post:
      operationId: createGateway
      summary: Istio Create a Gateway
      description: Create a new Gateway resource in the specified namespace.
      tags:
      - Gateway
      parameters:
      - $ref: '#/components/parameters/namespace'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Gateway'
      responses:
        '201':
          description: Gateway created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Gateway'
        '401':
          description: Unauthorized
        '409':
          description: Conflict
  /namespaces/{namespace}/gateways/{name}:
    get:
      operationId: getGateway
      summary: Istio Get a Gateway
      description: Read the specified Gateway resource.
      tags:
      - Gateway
      parameters:
      - $ref: '#/components/parameters/namespace'
      - $ref: '#/components/parameters/name'
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Gateway'
        '401':
          description: Unauthorized
        '404':
          description: Not found
    put:
      operationId: replaceGateway
      summary: Istio Replace a Gateway
      description: Replace the specified Gateway resource.
      tags:
      - Gateway
      parameters:
      - $ref: '#/components/parameters/namespace'
      - $ref: '#/components/parameters/name'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Gateway'
      responses:
        '200':
          description: Gateway replaced
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Gateway'
        '401':
          description: Unauthorized
        '404':
          description: Not found
    delete:
      operationId: deleteGateway
      summary: Istio Delete a Gateway
      description: Delete the specified Gateway resource.
      tags:
      - Gateway
      parameters:
      - $ref: '#/components/parameters/namespace'
      - $ref: '#/components/parameters/name'
      responses:
        '200':
          description: Gateway deleted
        '401':
          description: Unauthorized
        '404':
          description: Not found
components:
  schemas:
    Gateway:
      type: object
      properties:
        apiVersion:
          type: string
          enum:
          - networking.istio.io/v1
        kind:
          type: string
          enum:
          - Gateway
        metadata:
          $ref: '#/components/schemas/ObjectMeta'
        spec:
          type: object
          properties:
            selector:
              type: object
              additionalProperties:
                type: string
              description: One or more labels that indicate a specific set of pods/VMs on which this gateway configuration should be applied.
            servers:
              type: array
              items:
                type: object
                properties:
                  port:
                    type: object
                    properties:
                      number:
                        type: integer
                        description: A valid non-negative integer port number.
                      name:
                        type: string
                        description: Label assigned to the port.
                      protocol:
                        type: string
                        description: The protocol exposed on the port (HTTP, HTTPS, GRPC, TCP, TLS, MONGO).
                  hosts:
                    type: array
                    items:
                      type: string
                    description: One or more hosts exposed by this gateway.
                  tls:
                    type: object
                    description: TLS options for the gateway.
              description: A list of server specifications describing the properties of the proxy on a given load balancer port.
    ObjectMeta:
      type: object
      properties:
        name:
          type: string
          description: Name of the resource
        namespace:
          type: string
          description: Namespace of the resource
        labels:
          type: object
          additionalProperties:
            type: string
          description: Map of string keys and values for organizing resources
        annotations:
          type: object
          additionalProperties:
            type: string
          description: Unstructured key-value map for storing arbitrary metadata
        creationTimestamp:
          type: string
          format: date-time
          description: Timestamp representing the server time when this object was created
        resourceVersion:
          type: string
          description: An opaque value that represents the internal version of this object
    GatewayList:
      type: object
      properties:
        apiVersion:
          type: string
        kind:
          type: string
          enum:
          - GatewayList
        metadata:
          $ref: '#/components/schemas/ListMeta'
        items:
          type: array
          items:
            $ref: '#/components/schemas/Gateway'
    ListMeta:
      type: object
      properties:
        resourceVersion:
          type: string
        continue:
          type: string
  parameters:
    labelSelector:
      name: labelSelector
      in: query
      description: A selector to restrict the list of returned objects by their labels
      schema:
        type: string
    continue:
      name: continue
      in: query
      description: Continue token for paginated list requests
      schema:
        type: string
    name:
      name: name
      in: path
      required: true
      description: The resource name
      schema:
        type: string
    namespace:
      name: namespace
      in: path
      required: true
      description: The Kubernetes namespace
      schema:
        type: string
    limit:
      name: limit
      in: query
      description: Maximum number of resources to return
      schema:
        type: integer
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Kubernetes API server bearer token authentication
externalDocs:
  description: Istio Extensions Configuration Reference
  url: https://istio.io/latest/docs/reference/config/