Add Metric for Splunk License Time Remaining

[macolby42]

Component(s)

receiver/splunkenterprise

Is your feature request related to a problem? Please describe.

I would like to be able to better keep track of the amount of time I have remaining on any Splunk license(s) on my system.

Describe the solution you'd like

The metric could be called something like splunk.license.remaining, and the value would be the seconds remaining until the license expires. I would also like the use the following data from the /services/licenser/licenses API endpoint as attributes of the metric: status, label, and type.

Describe alternatives you've considered

The endpoint for obtaining data on licenses exists, but this would give a much more streamlined approach for monitoring a Splunk deployment.

Additional context

No response

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[github-actions]

Pinging code owners:

• receiver/splunkenterprise: @shalper2 @MovieStoreGuy @greatestusername

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[shalper2]

Please assign this to @macolby42 (they already have a PR open against it)

[greatestusername]

#42631