ActivationValue for RabbitMQ scaler

[adborroto]

Signed-off-by: Alejandro Dominguez adborroto90@gmail.com

Adding activation threshold (minMetricValue) for Rabbitmq.

Feature PR: #2831

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• Commits are signed with Developer Certificate of Origin (DCO)

Fixes #

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[zroubalik]

I think we should have a generic section on activation threshold in the docs. Where we describe the behavior (current and the new). And here reference this doc.
WDYT? @kedacore/keda-contributors

[adborroto]

I think we should have a generic section on activation threshold in the docs. Where we describe the behavior (current and the new). And here reference this doc. WDYT? @kedacore/keda-contributors

I like it, since, is going to be a generic concept for all scalers.

[JorTurFer]

+1 to a specific section

[adborroto]

I think we should have a generic section on activation threshold in the docs. Where we describe the behavior (current and the new). And here reference this doc. WDYT? @kedacore/keda-contributors

What do you think about add the section in a different PR/ticket. Since this is only affecting a single scaler. So we don't block this PR and also because not sure where this new section should be placed.

[zroubalik]

A new PR is fine, but this general section should be added before this feature lands.

@kedacore/keda-contributors ideas on the docs section?

[JorTurFer]

Maybe we can explain it under Scaling Deployments, StatefulSets & Custom Resources due to this only applies to ScaledObjects.
Something like "Differences between activation and scaling"