Installation

This section documents steps for installing and managing AIStor Volume Manager on Kubernetes infrastructure using a distribution that follows the upstream API and functionality.

This procedure assumes that the user interacting with the Kubernetes cluster has authorization to:

Install Kubernetes operators and associated resources including CustomResourceDefinitions, Statefulsets, and secrets into new or existing namespaces.
Perform operations as a user that has broad permissions to create resources within multiple namespaces.

Install Volume Manager using Helm Charts

Download your SUBNET license key

Log into MinIO SUBNET and access your License Key. From the Deployment view, select License to view the key.

Save the value to a secure location for use in a subsequent step.

Add the AIStor Helm Repository

helm repo add minio https://helm.min.io/

Install the minio/aistor-volumemanager chart
```
helm install volume-manager minio/aistor-volumemanager --set license="LICENSE-STRING"
```
Replace LICENSE-STRING with the license as downloaded or copied from SUBENT.

If you desire custom options, such as nodeSelectors or tolerations, see Advanced installation options.
Next Steps

Once you have installed Volume Manager, you can prepare drives for provisioning. You can then dynamically allocate storage to pods by specifying storageClass: directpv-min-io when constructing the Persistent Volume Claim.

Advanced installation options

You can customize the minio/aistor-volumemanager chart to add the license, limit node selections, or add tolerations. These options are not required.

This chart contains the necessary Kubernetes resources for deploying AIStor Volume Manager resources through the aistor-volumemanager chart.

Create a YAML manifest for the chart named aistor-volumemanager-values.yaml.

For example, to create the file from the command line:
```
touch aistor-volumemanager-values.yaml
```
Edit the aistor-volumemanager-values.yaml file.

For example, to edit the file with the CLI text editor nano:
```
nano aistor-volumemanager-values.yaml
```
The example manifest below includes the nodeserver key for controlling how Volume Manager determines eligible nodes. Set nodeSelector to limit Volume Manager to specific nodes in the cluster. Set tolerations to allow Volume Manager to ignore node taints.

Replace the LICENSE-STRING with your SUBNET license. If you do not wish to set the license in the file, remove the line.
```
license: "LICENSE-STRING"

nodeserver:
  nodeSelector: {
  # aistor.min.io/pool-id: "1"
  }
  tolerations: [
  # - key: "node-role.kubernetes.io/control-plane"
  #   operator: "Exists"
  #   effect: "NoSchedule"
  ]
```
Install the chart using the custom values.
```
helm install volume-manager minio/aistor-volumemanager \
  -f aistor-volumemanager-values.yaml
```
If successful, the command outputs a summary of installed resources.
Validate the installation.

Run the following command and check the status of deployed resources.
```
kubectl get all -n directpv
```