simple test scaffolder template

TestTemplate.yaml

# Notice the v1beta3 version
apiVersion: scaffolder.backstage.io/v1beta3
kind: Template
# some metadata about the template itself
metadata:
  name: v1beta3-demo
  title: SPAM Selection and Delivery
  description: scaffolder UI custom field test thingie
spec:
  owner: backstage/techdocs-core
  type: service

  # these are the steps which are rendered in the frontend with the form input
  parameters:
    - title: Decide on your preferred food product combination
      required:
        - spamVariant
      properties:
        spamVariant:
          title: SPAM Variant
          type: string
          description: What preferred variant of SPAM food product is needed
          ui:autofocus: true
          ui:options:
            rows: 5
        sauceFlavor:
          title: Sauce Flavor
          type: string
          description: What flavor of sauce should be layered on top of the SPAM
          ui:field: ValidateKebabCase
    - title: Choose a location where the food product should be placed
      required:
        - depositoryAddress
      properties:
        depositoryAddress:
          title: Depository Address
          type: string
          ui:field: SimpleTestFieldExtension
          ui:options:
            allowedBuildings:
              - aShed
              - aBarn
              - theBank

  # just some junk
  steps:
    - id: fetch-base
      name: Fetch Base
      action: fetch:template
      input:
        url: ./template
        values:
          spamVariant: ${{ parameters.spamVariant }}
          sauceFlavor: ${{ parameters.sauceFlavor }}
          depositoryAddress: ${{ parameters.depositoryAddress }}

    - id: register
      name: Register
      action: catalog:register
      input:
        repoContentsUrl: ${{ steps['publish'].output.repoContentsUrl }}
        catalogInfoPath: '/catalog-info.yaml'

  # this part probably won't work
  output:
    links:
      - title: Repository
        url: ${{ steps['publish'].output.remoteUrl }}
      - title: Open in catalog
        icon: catalog
        entityRef: ${{ steps['register'].output.entityRef }}