[201811] Restore from TACACS backup during config-update as needed #6407
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…ate-graph action. Equivalent to master change PR sonic-net#6285
yxieca
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yxieca
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Jan 9, 2021
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- Why I did it
During upgrade, if config is loaded from minigraph, it would miss TACACS credentials. This leads to device losing remote user accessibility
- How I did it
During update graph, when config is loaded from minigraph, look for TACACS credentials back-up and load that if available
- How to verify it
Remove /etc/sonic/config-db.json, save TACACS credentials in /etc/sonic/tacacs.json and do a Image upgrade. Do image upgrade and boot into new image. Verify remote user access is available.
NOTE: This change is available in master via PR #6285
- Which release branch to backport (provide reason below if selected)
- Description for the changelog
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