Rotate a Host-Level Key and List All Host Keys

arazzo: 1.0.1
info:
  title: Rotate a Host-Level Key and List All Host Keys
  summary: Create or update a host key (function or system) of a function app, then list all host keys to confirm.
  description: >-
    A host-scoped secret-rotation flow. Host keys grant access across every
    function in a function app, so this workflow create-or-updates a named host
    key of a chosen key type and then lists the full host key set (master,
    function, and system keys) to confirm the rotation. Every step spells out its
    ARM request inline — including the required api-version query parameter and
    the {properties:{...}} KeyInfo envelope — so the flow can be read and executed
    without opening the underlying OpenAPI description. All requests are
    authorized with the azure_auth OAuth2 bearer token carried by the Azure
    Resource Manager endpoint.
  version: 1.0.0
sourceDescriptions:
- name: azureFunctionsApi
  url: ../openapi/azure-functions-management-api.json
  type: openapi
workflows:
- workflowId: rotate-host-key
  summary: Set a host key and confirm via the full host key listing.
  description: >-
    Creates or updates a host-level key of a given key type, then lists all host
    keys to confirm the rotation took effect.
  inputs:
    type: object
    required:
    - subscriptionId
    - resourceGroupName
    - name
    - keyType
    - keyName
    properties:
      subscriptionId:
        type: string
        description: The Azure subscription identifier (GUID).
      resourceGroupName:
        type: string
        description: The resource group that contains the function app.
      name:
        type: string
        description: The name of the function app.
      keyType:
        type: string
        description: The host key type ("functionKeys" or "systemKeys").
      keyName:
        type: string
        description: The name of the host key to create or update.
      keyValue:
        type: string
        description: Optional explicit key value; omit to let the platform generate one.
      apiVersion:
        type: string
        description: The ARM api-version to use for all requests.
        default: "2024-11-01"
  steps:
  - stepId: setHostKey
    description: >-
      Create or update the named host key of the given key type. ARM returns 200
      when an existing key is updated or 201 when a new key is created.
    operationId: WebApps_CreateOrUpdateHostSecret
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: name
      in: path
      value: $inputs.name
    - name: keyType
      in: path
      value: $inputs.keyType
    - name: keyName
      in: path
      value: $inputs.keyName
    requestBody:
      contentType: application/json
      payload:
        properties:
          name: $inputs.keyName
          value: $inputs.keyValue
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      rotatedKeyName: $response.body#/properties/name
      rotatedKeyValue: $response.body#/properties/value
    onSuccess:
    - name: confirm
      type: goto
      stepId: listHostKeys
  - stepId: listHostKeys
    description: >-
      List the full host key set (master, function, and system keys) to confirm
      the rotated key is present.
    operationId: WebApps_ListHostKeys
    parameters:
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: name
      in: path
      value: $inputs.name
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      functionKeys: $response.body#/functionKeys
      systemKeys: $response.body#/systemKeys
  outputs:
    rotatedKeyName: $steps.setHostKey.outputs.rotatedKeyName
    rotatedKeyValue: $steps.setHostKey.outputs.rotatedKeyValue
    functionKeys: $steps.listHostKeys.outputs.functionKeys
    systemKeys: $steps.listHostKeys.outputs.systemKeys