feat(marketplace): Add marketplace providers to add entities into the catalog

[karthikjeeyar]

Hey, I just made a Pull Request!

This PR adds three new marketplace providers to add entities into the catalog. The providers reads the plugins, package and collection entity metadata from RHDH image and adds to the catalog.

        catalog.addEntityProvider(new MarketplacePackageProvider(taskRunner));
        catalog.addEntityProvider(new MarketplacePluginProvider(taskRunner));
        catalog.addEntityProvider(new MarketplaceCollectionProvider(taskRunner));

Screenshots:

Unit tests

✔️ Checklist

• A changeset describing the change and affected packages. (more info)
• Added or Updated documentation
• Tests for new functionality and regression tests for bug fixes
• Screenshots attached (for UI changes)

[rhdh-gh-app]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@red-hat-developer-hub/backstage-plugin-catalog-backend-module-marketplace	workspaces/marketplace/plugins/catalog-backend-module-marketplace	patch	v0.2.0

[gashcrumb]

very nice!

[karthikjeeyar]

Ran yarn dedupe and pushed the changes.

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[christoph-jerolimov]

Thanks @karthikjeeyar, +1 from my side.

Just one thing I personally would do different: instead of finding a parent "marketplace" workspace, I would make the path configurable from the app-config.yaml. Like this:

catalog:
  providers:
    extensions:
      local-provider:
        globs:
          - /marketplace/catalog/entities/**/*.yaml

See also https://backstage.io/docs/features/software-catalog/external-integrations/#follow-up-config-defined-schedule

But I'm 100% fine with this for 1.5 and we can make it more configurable in the future.

Thanks a lot for picking this up!!