Dan Lepage

Refactor snmp walk subcommand

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## What does this PR do? This PR refactors the `agent snmp walk` subcommand to fix some issues and make parts of it more reusable. ## Motivation I am in...

Remove unnecessary helper fn.

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### What does this PR do? Minor code cleanup - remove a helper fn that I wrote before I knew that `mapstructure` could already do this. ### Additional Notes No...

There's a value `.NonRepeaters` defined in [gosnmp.go](https://github.com/gosnmp/gosnmp/blob/0dd8e40cc4fc54b97ea749511edde593311df1de/gosnmp.go#L116). The comment on this value is wrong - there is no `max-repeaters` value defined by that RFC, only `max-repetitions`, which is set by...

[NDINT-387] Get health score from healthInst if fvOverallHealth isn't present

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### What does this PR do? This adds logic to request the health status of tenant nodes and parse `healthInst` if `fvOverallHealth` isn't present. ### Motivation `fvOverallHealth` is arguably more...