[FEAT] decouple cninode resource cleanup from deletion #591
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Issue #, if available:
Currently node based resource cleanup is still coupled with CNINode deletion. However the cleanup is rate limited by configured worker count.
Description of changes:
1, the PR is tend to decouple the process and make them compatible with high throughput.
2, the PR is adding metrics around the processes.
3, the PR also fixes a few issues blocking the controller running from worker nodes.
Tests were done by running the controller from worker nodes.
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