Azure Kubernetes Service Add Node Pool and Poll

arazzo: 1.0.1
info:
  title: Azure Kubernetes Service Add Node Pool and Poll
  summary: Add a new agent (node) pool to an AKS cluster and poll until it finishes provisioning.
  description: >-
    Adds an additional agent pool to an existing managed cluster, then polls the
    agent pool Get endpoint until its provisioningState reaches Succeeded,
    branching back to keep polling while the pool is still Creating. Every step
    inlines its request so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: aksApi
  url: ../openapi/azure-kubernetes-service-openapi.yml
  type: openapi
workflows:
- workflowId: add-node-pool-and-poll
  summary: Create an agent pool on a cluster and wait until it is provisioned.
  description: >-
    Issues AgentPools_CreateOrUpdate and then loops on AgentPools_Get until
    provisioningState is Succeeded.
  inputs:
    type: object
    required:
    - subscriptionId
    - resourceGroupName
    - resourceName
    - agentPoolName
    - accessToken
    properties:
      subscriptionId:
        type: string
        description: The ID of the target subscription (valid UUID).
      resourceGroupName:
        type: string
        description: The name of the resource group.
      resourceName:
        type: string
        description: The name of the managed cluster.
      agentPoolName:
        type: string
        description: The name of the agent pool to add (lowercase, max 12 chars).
      apiVersion:
        type: string
        description: The AKS REST API version to use.
        default: '2025-10-01'
      nodeCount:
        type: integer
        description: The number of nodes to create in the new pool.
        default: 3
      vmSize:
        type: string
        description: The VM size for the new pool nodes.
        default: Standard_DS2_v2
      mode:
        type: string
        description: The pool mode (System or User).
        default: User
      orchestratorVersion:
        type: string
        description: The Kubernetes version for the pool.
        default: '1.30'
      accessToken:
        type: string
        description: An Azure AD bearer token with user_impersonation scope.
  steps:
  - stepId: createNodePool
    description: >-
      Submit an agent pool create-or-update. ARM wraps the pool configuration
      under a properties object and returns 201 Created for an asynchronous add.
    operationId: AgentPools_CreateOrUpdate
    parameters:
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: resourceName
      in: path
      value: $inputs.resourceName
    - name: agentPoolName
      in: path
      value: $inputs.agentPoolName
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    requestBody:
      contentType: application/json
      payload:
        properties:
          count: $inputs.nodeCount
          vmSize: $inputs.vmSize
          osType: Linux
          mode: $inputs.mode
          orchestratorVersion: $inputs.orchestratorVersion
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      agentPoolId: $response.body#/id
      provisioningState: $response.body#/properties/provisioningState
  - stepId: pollNodePool
    description: >-
      Read the agent pool and inspect provisioningState. While the pool is still
      Creating the flow loops back to this step; once it reports Succeeded the
      workflow ends.
    operationId: AgentPools_Get
    parameters:
    - name: subscriptionId
      in: path
      value: $inputs.subscriptionId
    - name: resourceGroupName
      in: path
      value: $inputs.resourceGroupName
    - name: resourceName
      in: path
      value: $inputs.resourceName
    - name: agentPoolName
      in: path
      value: $inputs.agentPoolName
    - name: api-version
      in: query
      value: $inputs.apiVersion
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      provisioningState: $response.body#/properties/provisioningState
      count: $response.body#/properties/count
    onSuccess:
    - name: poolReady
      type: end
      criteria:
      - context: $response.body
        condition: $.properties.provisioningState == "Succeeded"
        type: jsonpath
    - name: keepPolling
      type: goto
      stepId: pollNodePool
      criteria:
      - context: $response.body
        condition: $.properties.provisioningState != "Succeeded"
        type: jsonpath
  outputs:
    agentPoolId: $steps.createNodePool.outputs.agentPoolId
    provisioningState: $steps.pollNodePool.outputs.provisioningState
    nodeCount: $steps.pollNodePool.outputs.count