arazzo: 1.0.1
info:
  title: Oracle Cloud Resize Instance Shape
  summary: Stop an instance, update its flexible shape configuration, then start it back up.
  description: >-
    Rescales a flexible-shape compute instance safely. The workflow stops the
    instance, polls until it is STOPPED, updates the instance shape
    configuration with new OCPU and memory values, and starts the instance again
    so the new sizing takes effect. Every step spells out its request inline so
    the resize flow can be read and executed without opening the underlying
    OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: computeApi
  url: ../openapi/oracle-cloud-compute-openapi.yaml
  type: openapi
workflows:
- workflowId: resize-instance-shape
  summary: Stop an instance, resize its shape config, then start it again.
  description: >-
    Stops the instance and polls until STOPPED, updates its shapeConfig OCPUs
    and memory, then starts it back up.
  inputs:
    type: object
    required:
    - instanceId
    - ocpus
    - memoryInGBs
    properties:
      instanceId:
        type: string
        description: The OCID of the instance to resize.
      ocpus:
        type: number
        description: The new total number of OCPUs.
      memoryInGBs:
        type: number
        description: The new total amount of memory in gigabytes.
  steps:
  - stepId: stopInstance
    description: Issue a STOP action to power down the instance before resizing.
    operationId: instanceAction
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    - name: action
      in: path
      value: STOP
    successCriteria:
    - condition: $statusCode == 200
  - stepId: pollStopped
    description: Poll the instance until it reports the STOPPED lifecycle state.
    operationId: getInstance
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.lifecycleState == "STOPPED"
      type: jsonpath
    outputs:
      lifecycleState: $response.body#/lifecycleState
  - stepId: updateInstance
    description: Update the instance flexible shape configuration with new sizing.
    operationId: updateInstance
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    requestBody:
      contentType: application/json
      payload:
        shapeConfig:
          ocpus: $inputs.ocpus
          memoryInGBs: $inputs.memoryInGBs
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      updatedShape: $response.body#/shape
  - stepId: startInstance
    description: Start the resized instance so the new shape configuration takes effect.
    operationId: instanceAction
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    - name: action
      in: path
      value: START
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      lifecycleState: $response.body#/lifecycleState
  outputs:
    instanceId: $inputs.instanceId
    updatedShape: $steps.updateInstance.outputs.updatedShape
    finalState: $steps.startInstance.outputs.lifecycleState