Difficulty: Intermediate
Estimated Time: 10 minutes

Portworx is a software defined persistent storage solution designed and purpose built for applications deployed as containers, via container orchestrators such as Kubernetes, Marathon and Swarm. It is a clustered block storage solution and provides a Cloud-Native layer from which containerized stateful applications programmatically consume block, file and object storage services directly through the scheduler.

In this tutorial, you will learn how to deploy PostgreSQL to Kubernetes and use Portworx Shared Volumes:

  • Use the Portworx Storage Class to create a shared volume PVC with 3 replicas of the data
  • Use a simple YAML file to deploy Busybox using this storage class
  • See how the shared volume allows 3 containers to be mounted at the same time and read/write data to the same file

Shared Volumes Overview

To learn more about how shared volumes can be useful check out our docs page.

This scenario assumes you have already covered the following scenarios:

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To learn more about Portworx, below are some useful references.

Don’t stop now! The next scenario will only take about 10 minutes to complete.

Using Snapshots with PostgreSQL

Step 1 of 6

Wait for Kubernetes & Portworx to be ready

Let's first wait for Kubernetes and Portworx to be ready.

Step: Wait for Kubernetes to be ready

Click the below section which waits for all Kubernetes nodes to be ready.

watch kubectl get nodes

When all 4 nodes show status Running then hit clear to ctrl-c and clear the screen.

Step: Wait for Portworx to be ready

Watch the Portworx pods and wait for them to be ready on all the nodes. This can take a few minutes since it involves pulling multiple docker images. You will see 'No resources found' until all images are pulled.

watch kubectl get pods -n kube-system -l name=portworx -o wide

When all the pods show STATUS Running and READY 1/1 then hit clear to ctrl-c and clear the screen.

Now that we have the Portworx cluster up, let's proceed to the next step !