WIP [v1alpha2]: refactor controller

[varshaprasad96]

This draft PR refactors the controllers for v1alpha2 API.

Things TODO:

• Implement unpack logic:
  • Images
    • Add finalizer to remove unpack image pods.
  • HTTP
  • Git (Todo: Change unpacking so that a new afero.FS is created only once during unpacking + move unpacking to tmp dir)
• Implement validate logic:
  • Plain
  • Registry V1
  • Helm
• Implement deployer:
  • Helm deployer
    • Plain
    • Helm (Todo: Re write the logic to find root dir for helm bundles using afero.FS so that validate is done)
      • Fix adding parent dir, when chart.yaml in cwd while writing to local fs
    • Registry V1
    • Add Default namespace if not specified in individual bundle objects.
• Add finalizers to BD
• Add statuses for each step to BD
• If bd.Spec.Paused is set, don't reconcile.
• Rebase on top of final changes made on API [v1alpha2] Introduce v1alpha2 APIs #713
  • Remove v1alpha and make v1alpha2 to be stored and served.
• Clean up manifests for other binaries for controllers which are not required any more.
• Add and verify any missing features to BD controller which were removed (Metrics handler, crd validator etc)

Extended work:

• Add caching logic so that unpacking is not done on every update.
• Add garbage collection to remove any contents stored locally when BD is removed.

[codecov]

Codecov Report

Attention: 49 lines in your changes are missing coverage. Please review.

Comparison is base (e59d3f5) 19.21% compared to head (9b3df66) 18.69%.
Report is 17 commits behind head on main.

❗ Current head 9b3df66 differs from pull request most recent head 1e7dc72. Consider uploading reports for the commit 1e7dc72 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #727      +/-   ##
==========================================
- Coverage   19.21%   18.69%   -0.52%     
==========================================
  Files          13       13              
  Lines        1046     1075      +29     
==========================================
  Hits          201      201              
- Misses        801      830      +29     
  Partials       44       44              

Files	Coverage Δ
internal/util/fs.go	0.00% <0.00%> (ø)
internal/convert/registryv1.go	14.01% <0.00%> (+0.51%)	⬆️
internal/util/tar.go	0.00% <0.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[openshift-merge-robot]

PR needs rebase.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[github-actions]

This PR has become stale because it has been open for 30 days with no activity. Please update this PR or remove the lifecycle/stale label before it is automatically closed in 30 days. Adding the lifecycle/frozen label will cause this PR to ignore lifecycle events.

[github-actions]

This PR has been closed as no updates were detected after 30 days of being stale. Please feel free to reopen this PR if necessary.