Install the HTTP Add-on

HTTP Add-on installation, upgrade, and removal via Helm

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Prerequisites

Before installing the HTTP Add-on, ensure you have:

A Kubernetes cluster (tested against the three most recent minor versions)
Helm 3
KEDA core installed (deployment guide)

If you have not installed KEDA yet, run:

helm repo add kedacore https://kedacore.github.io/charts
helm repo update
helm install keda kedacore/keda --namespace keda --create-namespace

Install

Add the KEDA Helm repository (if you have not already):

helm repo add kedacore https://kedacore.github.io/charts
helm repo update

Install the HTTP Add-on into the same namespace as KEDA:

helm install http-add-on kedacore/keda-add-ons-http --namespace keda

Verify the installation:
```
kubectl get pods -n keda
```
You should see pods for the operator, interceptor, and scaler components in a Running state.

Helm Values to Consider

The following values are commonly configured at install time. Pass them with --set or in a values file (-f values.yaml).

Value	Description	Default
`interceptor.replicas.min`	Minimum number of interceptor replicas	`3`
`interceptor.replicas.max`	Maximum number of interceptor replicas	`50`
`operator.watchNamespace`	Restrict the operator to a single namespace (empty string watches all namespaces)	`""`

For the full list of configuration options, see the http-add-on chart.

Upgrade

To upgrade to a newer version of the HTTP Add-on:

helm repo update
helm upgrade http-add-on kedacore/keda-add-ons-http --namespace keda

The CRDs are included as Helm templates (not in the crds/ directory), so they are updated automatically during helm upgrade.

Uninstall

Remove the HTTP Add-on Helm release:

helm uninstall http-add-on --namespace keda

CRDs are not automatically removed on uninstall. To remove them manually:
```
kubectl delete crd httpscaledobjects.http.keda.sh interceptorroutes.http.keda.sh
```
Warning: Deleting the CRDs removes all HTTPScaledObject and InterceptorRoute resources in the cluster. Make sure you no longer need them before proceeding.

Namespace-Scoped Installation

By default, the operator watches all namespaces for HTTPScaledObject and InterceptorRoute resources. To restrict the operator to a single namespace:

helm install http-add-on kedacore/keda-add-ons-http \
  --namespace keda \
  --set operator.watchNamespace=<your-namespace>

For the full list of configuration options, see the http-add-on chart.

What’s Next

Autoscale an App — Create a ScaledObject and InterceptorRoute for your service.
Configure the Interceptor — Timeouts, connection tuning, and scaling.