The current method of building the File-Based Catalog (FBC) using the gen_fbc.sh script should be replaced by a new task by Konflux, such as run-opm-command task within the fbc-builder Konflux pipeline.

This new task simplifies the process by building the catalog.json directly from the catalog-template.yaml during the pipeline run. This means the pre-generated catalogs directory is no longer needed and can be deleted. This change is recommended for better automation and maintenance.

Completed

• Create catalog-template.yamls per application/package/operator as follows

opm alpha convert-template basic catalogs-rhwa-25-9/v420/catalog/self-node-remediation/catalog.yaml > catalog/4.21-0/snr-basic-catalog-template.json

• Modify the template using Catalog Update Formulary logic (maybe inside a new script to simplify usage).
• Avoid using generate-fbc.sh in favor of the run-opm-command task from the PipelineRun. Tested with https://gitlab.cee.redhat.com/dragonfly/tools/-/blob/main/shared-tekton-pipelines/rhwa-build-pipeline-fbc-opm.yaml?ref_type=heads for one package.

Problem

The task only handles one package at a time. If you have multiple packages, you'll need to run the task for each one. 
This is a big problem for using this initiative. Using a Matrix or run it multiple times won't work as we need it aggreagated eventually and automated

Definition of Done:

1. New catalog templates are created for all the catalogs in one Tekton PipelineRun
2. The FBC build succeeds with the new run-opm-command task.

References

• Building a File-Based Catalog from catalog template (with example) - https://github.com/konflux-ci/olm-operator-konflux-sample/blob/main/docs/konflux-building-catalog.md 
• catalog template (KONFLUX-5311, and Slack)
  • building-a-file-based-catalog - https://github.com/konflux-ci/olm-operator-konflux-sample/blob/main/docs/konflux-onboarding.md#building-a-file-based-catalog
  • Catalog Templates - https://olm.operatorframework.io/docs/reference/catalog-templates/ 
• opm tasks - 
  • run-opm-command-oci-ta - https://github.com/konflux-ci/build-definitions/tree/main/task/run-opm-command-oci-ta/0.1
  • opm-get-bundle-version - https://github.com/konflux-ci/build-definitions/tree/main/task/opm-get-bundle-version/0.1
  • opm-render-bundles - https://github.com/konflux-ci/build-definitions/tree/main/task/opm-render-bundles/0.1
• opm render feature for image references in specific OLM catalog paths are converted from tag format (image:tag) to digest format (image@sha256:...) for .image and .relatedImages[].image  https://github.com/konflux-ci/build-definitions/pull/3075