Updates SendAppMetrics to use new go-loggregator GaugeAppInfo

[poy]

Set the instance index as meta information instead of a metric value

Signed-off-by: Andrew Poydence [email protected]

[cfdreddbot]

Hey apoydence!

Thanks for submitting this pull request! I'm here to inform the recipients of the pull request that you and the commit authors have already signed the CLA.

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this. Unfortunately, the Pivotal Tracker project is private so you may be unable to view the contents of the story.

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[emalm]

Thanks, @apoydence ! Prioritizing for the Diego team to pull in soon. Does this fix any particular bugs, or is it just updating the use of the dependency?

Best,
Eric

[jasonkeene]

@emalm This fixes an issue with go-loggregator where it was emitting application instance index as a gauge. Loggregator's conversion logic is capable of understanding this odd instance index gauge and putting in the right place. We'd like to not do this but no rush on merging.

[emalm]

Thanks, @jasonkeene, sounds good! We'll try to get to it soon, then.