Azure Autoscaler Addon

Introduction

The Platform9 managed Azure Autoscaler addon object's primary function is to ensure the resources of the Kubernetes cluster are never exhausted. More specific information about Kubernetes Autoscaler can be found in its specific GitHub pages.

Description

The Azure autoscaler addon continually verifies the number of needed pods that are pending allocation. If there are pods that are pending allocation and the autoscaler addon is not at its defined capacity, new nodes are then provisioned to accommodate the demand. When demand drops and fewer nodes are needed, the autoscaler removes the unused nodes. After we install the autoscaler addon, its behavior is automatic, so users only need to define the number of replicas to be deployed.

Settings

The Azure Autoscaler settings are defined by information stored in a ConfigMap. When the addon is initially configured, user settings are provided by the client to our support team, who then implements the changes.

YAML Specifications

The Azure credentials are stored in a secret pf9-addons/addon-config on the cluster.

apiVersion: sunpike.platform9.com/v1alpha2

kind: ClusterAddon

metadata:

  labels:

    sunpike.pf9.io/cluster: '<clsuuid>'

    type: cluster-auto-scaler-azure

  name: <clsuuid>-cluster-auto-scaler-azure

  namespace: default

spec:

  clusterID: '<clsuuid>'

  override:

    params:

    - name: minNumWorkers

      value: '<min worker count>'

    - name: maxNumWorkers

      value: '<max worker count>'

  type: cluster-auto-scaler-azure

  version: 1.13.8

  watch: true

Conclusion

Should you encounter any difficulties adopting or deploying the information noted above, our talented and responsive support team is available 24/7/365 to provide any additional assistance needed.

It should be noted that these addons are updated along with the pf9-kube version and can be referenced in the Support Matrix article.