OpenShift on VMware vSphere is the most popular deployment type and this week Dean Lewis, from VMware, joined to discuss getting the most out of OpenShift on your vSphere infrastructure. During today’s stream we learned how to configure and best practices for storage, talk about common practices or issues we see with deployments on VMware, and covered integrating with the VMware network stack.

Additionally, VMware recently released the vSphere Kubernetes Driver Operator, a method for deploying the VMware cloud provider and storage drivers. We had a great conversation about where it fits in with OpenShift and when it’s appropriate to use the driver Operator.

We had a great conversation with Dean, including a lot of viewer questions! Please be sure to review the summary of questions below to find each question and where we answered in the stream.

Since we had a (wonderful!) plethora of viewer questions, Dean wasn’t able to get through all of the content we had hoped. As a result, he created a video and blog post to cover that extra material.

As always, please see the list below for additional links to specific topics, questions, and supporting materials for the episode!

If you’re interested in more streaming content, please subscribe to the Red Hat livestreaming calendar to see the upcoming episode topics and to receive any schedule changes. If you have questions or topic suggestions for the Ask an OpenShift Admin Office Hour, please contact us via Discord, Twitter, or come join us live, Wednesdays at 11am EDT / 1500 UTC, on YouTube and Twitch.

Episode 54 recorded stream:

Use this link to jump directly to where we start talking about today’s topic.

This week’s top of mind topics:

Questions answered and topics discussed during the stream:

  • Starting off with a viewer question, should you use NSX-T or OpenShiftSDN / OVN-Kubernetes? The answer here is really “it depends”. If you have NSX-T and you’re using its features, for example policy based network security management, then you should absolutely use it with OpenShift. If you don’t have NSX-T, or you have no need to integrate your OpenShift cluster with other things using NSX-T, then there’s no harm in not using it. And, don’t forget you can use Antrea and NSX-T together!
  • Also from a viewer, are there any special integrations between VMware and OpenShift with regard to SR-IOV and the Operator? Unfortunately not. The Operator does not integrate with the hypervisor to request or configure those devices, rather it works at the RHCOS level to configure the devices when they’re available.
  • What about OpenShift Virtualization and VMware? This viewer question cuts right to the core of many other questions we get around OpenShift Virtualization. The two technologies are different and don’t really overlap. OpenShift Virtualization enables VMs to be hosted as and run as Pods in an OpenShift cluster. This is different from an OpenShift cluster deployed to VMware. We talk about the different use cases here during the stream.
  • Is nested networking supported with OpenShift on VMware? The question was completely clear here, so we did our best - ultimately, there’s nothing wrong with using OpenShiftSDN or OVN-Kubernetes on top of and/or alongside NSX-T. But, you also have the option of using NSX-T natively with OpenShift.
  • Dean uses a slide here in the stream to illustrate the state of OpenShift and VMware integration as well as set the stage for some further discussions.


Videos, vSphere, VMware,

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