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http_scaled_object.md

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The HTTPScaledObject

This document reflects the specification of the HTTPScaledObject resource for the latest version

Each HTTPScaledObject looks approximately like the below:

kind: HTTPScaledObject
apiVersion: http.keda.sh/v1alpha1
metadata:
    name: xkcd
spec:
    scaleTargetRef:
        deployment: xkcd
        service: xkcd
        port: 8080

This document is a narrated reference guide for the HTTPScaledObject, and we'll focus on the spec field.

scaleTargetRef

This is the primary and most important part of the spec because it describes (1) what Deployment to scale and (2) where and how to route traffic.

deployment

This is the name of the Deployment to scale. It must exist in the same namespace as this HTTPScaledObject and shouldn't be managed by any other autoscaling system. This means that there should not be any ScaledObject already created for this Deployment. The HTTP add on will manage a ScaledObject internally.

service

This is the name of the service to route traffic to. The add on will create autoscaling and routing components that route to this Service. It must exist in the same namespace as this HTTPScaledObject and should route to the same Deployment as you entered in the deployment field.

port

This is the port to route to on the service that you specified in the service field. It should be exposed on the service and should route to a valid containerPort on the Deployment you gave in the deployment field.