Available in editions:  CE, BE, SE, SE+, EE

The module lifecycle stage: General Availability

VPA works directly with the Pod (instead of the Pod controller) by measuring and changing its containers’ parameters. Configuring is performed using the VerticalPodAutoscaler Custom Resource.

The module generally requires no configuration and only has the nodeSelector/tolerations settings.

The module is enabled by default in the following bundles: Default, Managed. The module is disabled by default in the Minimal bundle.

How to explicitly enable the module…

You may explicitly enable or disable the module in one of the following ways:

  • Via Deckhouse web UI. In the “System” → “System Management” → “Deckhouse” → “Modules” section, open the vertical-pod-autoscaler module and enable (or disable) the “Module enabled” toggle. Save changes.

    Example:

    Module enable/disable interface

  • Via Deckhouse CLI (d8).

    Use the d8 system module enable command for enabling, or d8 system module disable command for disabling the module (you need Deckhouse CLI (d8), configured to work with the cluster).

    Example of enabling the module:

    d8 system module enable vertical-pod-autoscaler

  • Using ModuleConfig vertical-pod-autoscaler.

    Set spec.enabled to true or false in ModuleConfig vertical-pod-autoscaler (create it if necessary);

    Example of a manifest to enable module vertical-pod-autoscaler:

    apiVersion: deckhouse.io/v1alpha1
kind: ModuleConfig
metadata:
  name: vertical-pod-autoscaler
spec:
  enabled: true

How to configure the module…

You can configure the module in one of the following ways:

  • Via Deckhouse web UI.

    In the “System” → “System Management” → “Deckhouse” → “Modules” section, open the vertical-pod-autoscaler module and enable the “Advanced Settings” switch. Fill in the required fields in the “Configuration” tab or specify the module settings in YAML format on the “YAML” tab, excluding the settings section. Save the changes.

    Example:

    Module Setup Interface

    You can also edit the ModuleConfig object vertical-pod-autoscaler on the “YAML” tab in the module settings window (“System” → “System Management” → “Deckhouse” → “Modules”, open the module vertical-pod-autoscaler) by specifying the schema version in the spec.version parameter and the necessary module parameters in the spec.settings section.

  • Via Deckhouse CLI (d8) (requires Deckhouse CLI (d8) configured to work with the cluster).

    Edit the existing ModuleConfig vertical-pod-autoscaler (for more details on configuring Deckhouse, see the documentation) by executing the following command:

    d8 k edit mc vertical-pod-autoscaler

    Make the necessary changes in the spec.settings section. If necessary, specify the schema version in the spec.version parameter. Save the changes.

    You can also create a file with manifest for ModuleConfig vertical-pod-autoscaler using the example below. Fill in the spec.settings section with the required module parameters. If necessary, specify the schema version in the spec.version parameter.

    Apply the manifest using the following command (indicate the manifest file name):

    d8 k apply -f <FILENAME>

    Example of a manifest for ModuleConfig vertical-pod-autoscaler:

    apiVersion: deckhouse.io/v1alpha1
kind: ModuleConfig
metadata:
  name: vertical-pod-autoscaler
spec:
  version: 1
  enabled: true
  settings: # Module parameters from the "Parameters" section below.

Requirements

To the versions of other modules:

  • prometheus: any version.
  • prometheus-metrics-adapter: any version.

Parameters

Schema version: 1

  • settings
    object
    • settings.nodeSelector
      object

      The same as in the pods’ spec.nodeSelector parameter in Kubernetes.

      If the parameter is omitted or false, it will be determined automatically.

    • settings.tolerations
      array of objects

      The same as in the pods’ spec.tolerations parameter in Kubernetes;

      If the parameter is omitted or false, it will be determined automatically.

      • settings.tolerations.effect
        string
      • settings.tolerations.key
        string
      • settings.tolerations.operator
        string
      • settings.tolerations.tolerationSeconds
        integer
      • settings.tolerations.value
        string