arazzo: 1.0.1
info:
  title: Oracle OCI Resize Flexible Compute Instance
  summary: Read an instance, update its flexible shape OCPU and memory configuration, then read it back to confirm.
  description: >-
    Rescales a flexible-shape compute instance to a new CPU and memory profile.
    The workflow reads the instance to capture its ETag, updates the instance
    shapeConfig with the requested OCPU and memory values guarded by that ETag,
    and then reads the instance back to confirm the new sizing took effect. Every
    step spells out its request inline so the flow can be read and executed
    without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: ociComputeApi
  url: ../openapi/oci-compute-api-openapi.yml
  type: openapi
workflows:
- workflowId: resize-flex-instance
  summary: Update a flexible instance OCPU and memory then confirm the new configuration.
  description: >-
    Reads the instance for its ETag, updates the shapeConfig OCPU and memory
    under an if-match guard, and reads the instance back to confirm the resize.
  inputs:
    type: object
    required:
    - instanceId
    - ocpus
    - memoryInGBs
    properties:
      instanceId:
        type: string
        description: The OCID of the flexible-shape instance to resize.
      ocpus:
        type: number
        description: The target number of OCPUs for the instance.
      memoryInGBs:
        type: number
        description: The target amount of memory in GBs for the instance.
      authToken:
        type: string
        description: OCI request-signing bearer credential for the Authorization header.
  steps:
  - stepId: readInstance
    description: >-
      Read the instance to confirm it exists and capture its current ETag for
      optimistic concurrency control on the resize.
    operationId: getInstance
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    - name: Authorization
      in: header
      value: $inputs.authToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      etag: $response.headers.etag
      shape: $response.body#/shape
  - stepId: resizeInstance
    description: >-
      Update the instance shapeConfig to apply the new OCPU and memory values,
      guarded by the ETag captured when reading the instance.
    operationId: updateInstance
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    - name: if-match
      in: header
      value: $steps.readInstance.outputs.etag
    - name: Authorization
      in: header
      value: $inputs.authToken
    requestBody:
      contentType: application/json
      payload:
        shapeConfig:
          ocpus: $inputs.ocpus
          memoryInGBs: $inputs.memoryInGBs
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      instanceId: $response.body#/id
  - stepId: confirmResize
    description: >-
      Read the instance back to confirm the new OCPU and memory configuration
      took effect.
    operationId: getInstance
    parameters:
    - name: instanceId
      in: path
      value: $inputs.instanceId
    - name: Authorization
      in: header
      value: $inputs.authToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      ocpus: $response.body#/shapeConfig/ocpus
      memoryInGBs: $response.body#/shapeConfig/memoryInGBs
  outputs:
    instanceId: $steps.resizeInstance.outputs.instanceId
    ocpus: $steps.confirmResize.outputs.ocpus
    memoryInGBs: $steps.confirmResize.outputs.memoryInGBs