Deploy PVs Autoscaling

This topic describes how to deploy and configure PVs Autoscaling.  Installation is based on a Helm chart published in github repo.

Prerequisites

• A running EKS cluster, v1.7 or later, with the EBS CSI add-on installed, with one storage class defined

• Kubectl is installed

• Access to the Zesty platform
  For more information, see Access the Zesty platform/

• The Zesty API key
  For more information, see Find your Zesty API key.

• Outbound HTTPS communication from cluster nodes

• The AWS account ID of the cluster on which PVs Autoscaling is being installed
  Before deploying, share this ID with a Zesty Customer Support representative.
  Note that this ID may be different than the one from the Master payer account.

To install PVs Autoscaling:

1. Add or update the Zesty repository to your Helm client:

   • To add the repository:

     helm repo add zestyrepo https://zesty-co.github.io/zesty-helm

   • If the repository is already configured, update it:

     helm repo update

2. Install the Zesty PVC Helm chart:

   # Minimal
   
   helm install zesty-pvc --set agentManager.apiKey=<API_KEY> zestyrepo/zesty
   
   # With advanced options
   
   helm install zesty-pvc --set agentManager.apiKey=<API_KEY> /
   
   [--set agentManager.prometheusExporter.port=<PORT>] /
   
   [--set "tolerations[0].operator=<VALUE>,tolerations[0].effect=<VALUE>,tolerations[0].key=<KEY>"] / 
   
   [--set "nodeSelector.<KEY>=<VALUE>"] / 
   
   [--set storageClassName=<storageClass name>] / 
   
   [--namespace <Namespace>] /

   The following table describes the popular command arguments. For the full arguments list, see the Helm chart at https://zesty-co.github.io/zesty-helm/.

   Argument	Mandatory	Description
   agentManager.apiKey=<API_KEY>	Yes	Enter the Zesty-provided API Key. You can also enter the API key as a secret, as described in the Helm chart. To get your API key, see Find your Zesty API key.
   agentManager.prometheusExporter.port=<PORT>	No	Enables the Prometheus exported for PVs Autoscaling solution. We recommend using the Prometheus default port, 8443.
   agentManager.prometheusExporter.podMonitor.enabled=<bool>	No	Enables Prometheus autodiscovery of Zesty metrics.
   "tolerations[0].operator=<VALUE>,tolerations[0].effect=<VALUE>,tolerations[0].key=<KEY>"	No	Configures tolerations roles. You can set as many as needed while making sure to increase the list index number.
   "nodeSelector.<KEY>=<VALUE>"	No	Configures on which nodes PVs Autoscaling is allowed. Use quotes to avoid shell issues. For example, “nodeSelector.kubernetes\.io/os=linux”. Note the ‘\’ before the “.io” in the node selector key that is used as an escape character.
   --set storageClassName=<storageClass name>	No	Configures which storage class PVs Autoscaling will use to provision new disks. If this is not set, the first one found with EBS CSI provisioner (ebs.csi.aws.com) is used.
   --namespace <Namespace>	No	Specifies on which namespace PVs Autoscaling resources will be deployed.