The vertical-pod-autoscaler module: custom resources

VerticalPodAutoscaler is the configuration for a vertical Pod autoscaler, which automatically manages Pod resources based on historical and real time resource utilization.

• spec

  object

  Required value

  • spec.resourcePolicy

    object

    Controls how the autoscaler computes recommended resources. The resource policy may be used to set constraints on the recommendations for individual containers. If not specified, the autoscaler computes recommended resources for all containers in the pod, without additional constraints.

    • spec.resourcePolicy.containerPolicies

      array of objects

      Per-container resource policies.

      ContainerResourcePolicy controls how autoscaler computes the recommended resources for a specific container.

      • spec.resourcePolicy.containerPolicies.containerName

        string

        Name of the container or DefaultContainerResourcePolicy, in which case the policy is used by the containers that don’t have their own policy specified.

      • spec.resourcePolicy.containerPolicies.controlledResources

        array of strings

        Specifies the type of recommendations that will be computed (and possibly applied) by VPA.

        Default: ["ResourceCPU","ResourceMemory"]

        • Element of the array

          string

          ResourceName is the name identifying various resources in a ResourceList.

      • spec.resourcePolicy.containerPolicies.controlledValues

        string

        Specifies which resource values should be controlled.

        Default: "RequestsAndLimits"

        Allowed values: RequestsAndLimits, RequestsOnly

      • spec.resourcePolicy.containerPolicies.maxAllowed

        object

        Specifies the maximum amount of resources that will be recommended for the container. The default is no maximum.

      • spec.resourcePolicy.containerPolicies.minAllowed

        object

        Specifies the minimal amount of resources that will be recommended for the container. The default is no minimum.

      • spec.resourcePolicy.containerPolicies.mode

        string

        Whether autoscaler is enabled for the container.

        Default: "Auto"

        Allowed values: Auto, Off

  • spec.targetRef

    object

    Required value

    Refers to a Kubernetes controller object responsible for managing pods.

    All common controller types are supported: Deployment, StatefulSet, DaemonSet, CronJobs, and any custom types with a scale sub-resource.

    • spec.targetRef.apiVersion

      string

      API version of the object.

    • spec.targetRef.kind

      string

      Required value

      Object type.

    • spec.targetRef.name

      string

      Required value

      Object name.

  • spec.updatePolicy

    object

    Describes the rules on how changes are applied to the pods. If not specified, all fields in the PodUpdatePolicy are set to their default values.

    • spec.updatePolicy.updateMode

      string

      The operation mode of the VPA controller

      • Auto — currently, Auto and Recreate modes do the same thing. This mode is reserved for the Pod inplace resource update in Kubernetes.
      • Recreate — this mode allows VPA to modify resource requirements of the running pods (i.e., restart them during operation). This mode might result in temporary unavailability of the service (due to restart) if you have just one replica (replicas: 1). In this mode, VPA does not recreate pods that were not created by a controller.
      • Initial — VPA modifies pod resources only when pods are started (but not when pods are running).
      • Off — VPA does not take any action to update the resource requests for the running containers. Autoscaler calculates recomendations and stores them in the status field of the VPA object. You can browse VPA recommendations using the following command: kubectl describe vpa <vpa-name>.

      Default: "Auto"

      Allowed values: Off, Initial, Recreate, Auto

VerticalPodAutoscaler is the configuration for a vertical Pod autoscaler, which automatically manages Pod resources based on historical and real time resource utilization.

• spec

  object

  Required value

  • spec.resourcePolicy

    object

    Controls how the autoscaler computes recommended resources. The resource policy may be used to set constraints on the recommendations for individual containers. If not specified, the autoscaler computes recommended resources for all containers in the pod, without additional constraints.

    • spec.resourcePolicy.containerPolicies

      array of objects

      Per-container resource policies.

      ContainerResourcePolicy controls how autoscaler computes the recommended resources for a specific container.

      • spec.resourcePolicy.containerPolicies.containerName

        string

        Name of the container or DefaultContainerResourcePolicy, in which case the policy is used by the containers that don’t have their own policy specified.

      • spec.resourcePolicy.containerPolicies.controlledResources

        array of strings

        Specifies the type of recommendations that will be computed (and possibly applied) by VPA.

        Default: ["ResourceCPU","ResourceMemory"]

        • Element of the array

          string

          ResourceName is the name identifying various resources in a ResourceList.

      • spec.resourcePolicy.containerPolicies.controlledValues

        string

        Specifies which resource values should be controlled.

        Default: "RequestsAndLimits"

        Allowed values: RequestsAndLimits, RequestsOnly

      • spec.resourcePolicy.containerPolicies.maxAllowed

        object

        Specifies the maximum amount of resources that will be recommended for the container. The default is no maximum.

      • spec.resourcePolicy.containerPolicies.minAllowed

        object

        Specifies the minimal amount of resources that will be recommended for the container. The default is no minimum.

      • spec.resourcePolicy.containerPolicies.mode

        string

        Whether autoscaler is enabled for the container.

        Default: "Auto"

        Allowed values: Auto, Off

  • spec.targetRef

    object

    Required value

    Refers to a Kubernetes controller object responsible for managing pods.

    All common controller types are supported: Deployment, StatefulSet, DaemonSet, CronJobs, and any custom types with a scale sub-resource.

    • spec.targetRef.apiVersion

      string

      API version of the object.

    • spec.targetRef.kind

      string

      Required value

      Object type.

    • spec.targetRef.name

      string

      Required value

      Object name.

  • spec.updatePolicy

    object

    Describes the rules on how changes are applied to the pods. If not specified, all fields in the PodUpdatePolicy are set to their default values.

    • spec.updatePolicy.updateMode

      string

      The operation mode of the VPA controller

      • Auto — currently, Auto and Recreate modes do the same thing. This mode is reserved for the Pod inplace resource update in Kubernetes.
      • Recreate — this mode allows VPA to modify resource requirements of the running pods (i.e., restart them during operation). This mode might result in temporary unavailability of the service (due to restart) if you have just one replica (replicas: 1). In this mode, VPA does not recreate pods that were not created by a controller.
      • Initial — VPA modifies pod resources only when pods are started (but not when pods are running).
      • Off — VPA does not take any action to update the resource requests for the running containers. Autoscaler calculates recomendations and stores them in the status field of the VPA object. You can browse VPA recommendations using the following command: kubectl describe vpa <vpa-name>.

      Default: "Auto"

      Allowed values: Off, Initial, Recreate, Auto