> ## Documentation Index
> Fetch the complete documentation index at: https://astronomer.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Update a Deployment KEDA config with the APC API

<Note>
  The examples on this page show common ways to use the APC API — they're not a complete API reference. For the full, interactive API documentation for your installation, including every available query, mutation, and type, go to `https://houston.<your-base-domain>/v1`, and click on the **Docs** tab. See [Develop and test APC API queries](/docs/astro-private-cloud/v-2-x/houston-api-develop-test) for more on using the built-in GraphQL explorer.
</Note>

Kubernetes Event-driven Autoscaling (KEDA) scales Celery workers based on task queue depth. Enable KEDA for a Deployment using the `updateDeploymentKedaConfig` mutation:

```graphql wrap theme={null}
mutation {
  updateDeploymentKedaConfig(
    deploymentUuid: "<deployment-uuid>"
    state: true
  ) {
    id
    label
  }
}
```

For sizing guidance and other Airflow resource settings, see [Scale Airflow resources](/docs/astro-private-cloud/v-2-x/scale-airflow-resources).