creating_azure_persistent_volume.md

Creating Persistent Volume on Azure

In this lab you will learn how to create persistent volume (PV) using Azure Disk storage.

Step 1

Before creating PV on openshift, you will have make sure the Azure storageclass is setup. The StorageClass resource object is created by cluster-admin. It provides a mean to pass parameter for dynamic provision storage on demand.

Here is an example Azure unmanaged disk storageclass YAML file. Create a storageclass.yaml file with the following information:

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: azure-storageclass
provisioner: kubernetes.io/azure-disk
parameters:
  storageAccount: pocadmin

Note: pocadmin is the storage account on Azure

Step 2

Run the follow command with the file that was created in the previous step.

oc create -f storageclass.yaml

Step 3

oc annotate storageclass azure-storageclass storageclass.beta.kubernetes.io/is-default-class="true"

Step 4

Create PVC from OpenShift Web UI

1. Login to WebUI https://master:8443
2. Create Project
3. Create PVC via Storage on the left navigation --> create PVC --> select RWO, enter 1G --> click Create

Step 5

Update deployment config to use PVC

1. Under the same Project
2. Click catalog --> enter PHP
3. Select PHP builder image
4. Enter https://github.com/RedHatWorkshops/welcome-php.git
5. Deploy the application
6. Click Application --> Deployments
7. Click Action --> Add Storage --> select pvc and add path.
8. Save.