Install Portworx Backup on-premises

If you are installing Portworx Backup alone – without Portworx Enterprise – skip this step. If you want to install Portworx Backup with Portworx Enterprise , you must first Install Portworx, then create the following storage class on your Kubernetes cluster:
```
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
    name: portworx-sc
provisioner: kubernetes.io/portworx-volume
parameters:
    repl: "3"
```
Generate the install spec through the Portworx Backup spec generator.

If you are using Portworx for the Portworx Backup installation, select the Use storage class checkbox under the Configuration section of the Spec Details tab of the spec generator and enter the name of the storageclass you created in step 1 above.
Using Helm, add the Portworx Enterprise repo to your cluster and update it:
```
helm repo add <repo-name> http://charts.portworx.io/ && helm repo update
```
Install Portworx Backup using either the helm set command or the values.yaml file provided in the output of the Complete tab of the spec generator.

You can find more information about the Portworx Backup Helm chart in the reference article.

Configure external OIDC endpoints

If you enabled an external OIDC during the Portworx Backup installation, you must manually configure the redirect URI in your OIDC provider.

Refer to the Set up login redirects section of the Portworx Enterprise documentation for instructions.