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feat: provide support to allow HTTP scaler to work alongside other core KEDA scalers #929

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merged 2 commits into from
Mar 26, 2024

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devopsdynamo
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@devopsdynamo devopsdynamo commented Feb 22, 2024

This change provides support to allow HTTP scaler to work alongside other core KEDA scalers by allowing skipScaledObjectCreation annotation to be set on an HTTPScaledObject. This will ensure the reconciler to skip the KEDA core ScaledObjects creation which alllows you to create and manage your own ScaledObject with addtional triggers.

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@tomkerkhove
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Hey, mind sharing some samples on what that would look like? Is the problem that you'd otherwise have 2 scaledobjects or?

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@tomkerkhove Yeah the problem we have at the moment is that we already have a scaledobject with a kafka trigger added for scaling but we also have a requirement to add HTTP scaling to the same deployment so we can scale up on http requests also. This change will allow you to add skip annotation on the HTTPSO so you can add the external-push trigger to your existing scaledobject as an additional trigger etc.

@JorTurFer
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I like the solution but I'm worried about how this will scale in the future. Currently, we support hosts and prefixes properties within external scaler metadata but maybe we need more info in the future.
I'm thinking that maybe we should replace them with the HTTPScaledObject name instead, but it enforces the scaler to know about the HTTPScaledObject and permissions for pulling them to selfconfigure it :(
WDYT @tomkerkhove ?

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Awesome contribution ❤️
Just small feedback inline

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There are also some static checks failures: https://github.com/kedacore/http-add-on/actions/runs/8230990823/job/22505562138?pr=929

@JorTurFer
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We need to fix the DCO check too, you can check the steps just clicking the link:
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Good guide, added a few suggestion!

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@JorTurFer
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There are also some linting errors, could you take a look? https://github.com/kedacore/http-add-on/actions/runs/8261625169/job/22724018316?pr=929

@devopsdynamo
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@tomkerkhove updated docs as per your suggestions, thanks. @JorTurFer lint errors should be fixed now also, my bad :)

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Nits

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LGTM! Just the change in the changelog and we are ready to merge this! ❤️

…re KEDA scalers

Signed-off-by: Paul Cooke <Paul.Cooke@10xbanking.com>
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LGTM! Just the change in the changelog and we are ready to merge this! ❤️

Updated as requested

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Awesome contribution! Thanks for it ❤️

@JorTurFer JorTurFer enabled auto-merge (squash) March 26, 2024 18:16
@JorTurFer JorTurFer merged commit 5b3063e into kedacore:main Mar 26, 2024
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@JorTurFer JorTurFer mentioned this pull request Apr 3, 2024
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3 participants