[SOLVED] Can Backstage Templates publish new files to existing repos?

Can Backstage Templates publish new files to existing repos?

When using Backstage, it seems all the demos on template creation are centered around the concept of creating a new Git repo from scratch.

Can a template be created that will add new content (files) to an existing repo without trying to create a new repo or branch? I would prefer to push instead of pull request, but will accept pull request if that is the only option.

Here is my template so far...

apiVersion: scaffolder.backstage.io/v1beta3
kind: Template
metadata:
  name: addfile
  title: "Generate MongoDB Cluster YAML"
  description: "Asks user for cluster details and publishes a YAML configuration file to a target GitHub repository."
spec:
  owner: steve@john.net
  type: configuration
  parameters:
    - title: Cluster Configuration
      required:
        - clusterName
        - clusterSize
        - comments
      properties:
        clusterName:
          type: string
          title: Cluster Name
        clusterSize:
          type: string
          title: Cluster Size
          enum:
            - Small
            - Medium
            - Large
        comments:
          title: Request Comments
          type: string
  steps:
    - id: fetch-repo
      name: Fetch repo
      action: fetch:template
      input:
        values:
          cluster_name: ${{ parameters.clusterName }}
          provider_instance_size_name: ${{ parameters.clusterSize }}
        url: ./skeleton
        targetPath: ./new_cluster_requests/${{ parameters.clusterName }}

    - id: write-to-file
      name: Overwrite File Or Create New
      action: roadiehq:utils:fs:write
      input:
        path: ./new_cluster_requests/${{ parameters.clusterName }}.yaml
        content: |
          clusterName: ${{ parameters.clusterName }}
          clusterSize: ${{ parameters.clusterSize }}

    - id: publish-to-github
      name: Publish to GitHub
      action: github:repo:push
      input:
        repoUrl: "github.com?owner=bongo&repo=testrepo"
        defaultBranch: main
        sourcePath: "new_cluster_requests/"
        gitCommitMessage: ${{ parameters.comments }}
        force: true

I receive an error trying to publish:

Push rejected because it was not a simple fast-forward. Use "force: true" to override. {data={"reason":"not-fast-forward"}}

The github repo exists, as does the branch. I just want to add the new file. Any ideas?

Solution