> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/self-managed-enterprise-edition/use-self-managed-enterprise-edition/advanced-configuration/use-hpa-for-autoscaling.md).

# Configure Autoscaling

{% hint style="info" %}
**NOTE**

This feature is available from Harness Helm Chart version 0.23.0.

By default, autoscaling is enabled for all services in Harness Helm Chart now.
{% endhint %}

You can set up autoscaling for harness workloads using [HorizontalPodAutoscaler](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/). Harness helm chart supports configuring HPA for either all services at once or for selective services.

### Configure autoscaling for all services <a href="#configure-autoscaling-for-all-services" id="configure-autoscaling-for-all-services"></a>

You can configure autoscaling for all services using the global override of helm chart.

```
global:
  autoscaling:
    enabled: true      # Enables autoscaling for all services
    minReplicas: 1     # Set minimum replicas for all services
    maxReplicas: 5     # Set maximum replicas for all services
    targetCPU: 80      # Set target CPU for all services
    targetMemory: 80   # Set target Memory for all services
```

### Configure autoscaling for selective services <a href="#configure-autoscaling-for-selective-services" id="configure-autoscaling-for-selective-services"></a>

If you want to change the autoscaling spec such as `minReplicas` for selective services, you can configure it like below.

```
global:
  autoscaling:
    enabled: true      # Disables autoscaling for all services
    minReplicas: 1     # Set minimum replicas for all services
    maxReplicas: 5     # Set maximum replicas for all services
    targetCPU: 80      # Set target CPU for all services
    targetMemory: 80   # Set target Memory for all services

platform:
  ng-manager:
    autoscaling:
      minReplicas: 3   # Takes precedence over global minReplicas     
```

The same applies for other spec fields `maxReplicas`, `targetCPU` and `targetMemory`.

### Configure autoscaling behaviour of selective services <a href="#configure-autoscaling-behaviour-of-selective-services" id="configure-autoscaling-behaviour-of-selective-services"></a>

You can set autoscaling behaviour of services through their individual overrides. For eg., to set the scaleDown policy of ng-manager, you can configure it like below.

```
platform:
  ng-manager:
    autoscaling:
      behavior:
        scaleDown:
          policies:
          - type: Pods
            value: 4
            periodSeconds: 60
          - type: Percent
            value: 10
            periodSeconds: 60    
```

To learn more about the HPA behavior, you can refer to its [Official Documentation](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/#configurable-scaling-behavior)