Description

This addresses an intermittent failure we've seen where operator-controller appears to not resolve catalogs that exist. We identified the issue coming from the catalog caches not being valid after a restart.

This PR adds two things to address this issue:

• On startup of the binary, always clear the catalog cache directory

The PR also includes some small refactoring and fixes:

• moves certain unpack functions to an util package and are now shared by catalog and bundle image unpacker
• if unpack path happens to be an existing file, we delete it and unpack the image

Reviewer Checklist

• API Go Documentation
• Tests: Unit Tests (and E2E Tests, if appropriate)
• Comprehensive Commit Messages
• Links to related GitHub Issue(s)