add backstage networkpolicy

General MR

Summary

Adds backstage netpol integration

Relevant logs/screenshots

enabling backstage creates backstage ns and netpol is created in monitoring:

see hyperlink for dashboard pane at bottom of screenshot (demo/example pointing to tagged Policy Reporter resource dashboards:

Linked Issue

https://repo1.dso.mil/big-bang/apps/sandbox/backstage/-/issues/38

Upgrade Notices

N/A