Jan,

Thanks for taking the time for a great reply.

For what I am trying to accomplish here in my home lab, it seems that OKD is the safest path. If I understand correctly, with OKD, I just need to build full vm's in the oVirt environment which will become hosts, compute nodes, for containers that get deployed. OKD is basically just container management and it does not care whether or not the compute nodes are VM's or bare metal.

Again, thanks for taking the time to educate me.

Robert

________________________________________
From: Jan Zmeskal <jzmeskal@redhat.com>
Sent: Tuesday, December 24, 2019 4:43 PM
To: Robert Webb
Cc: users
Subject: Re: [ovirt-users] oVirt and Containers

Okay, so this topic is quite vast, but I believe I can at the very least give you a few pointers and maybe others might chime in as well.

Firstly, there's the Kubevirt project. It enables you to manage both application containers and virtual machines workloads (that cannot be easily containerized) in a shared environment. Another benefit is getting advantages of the powerful Kubernetes scheduler. I myself am not too familiar with Kubevirt, so I can only offer this high-level overview. More info here: https://kubevirt.io/

Then there is another approach which I am more familiar with. You might want to use oVirt as an infrastructure layer on top of which you run containerized workflow. This is achieved by deploying either OpenShift<https://www.openshift.com/> or the upstream project OKD<https://www.okd.io/> in the oVirt virtual machines. In that scenario, oVirt VMs are considered by OpenShift as compute resources and are used for scheduling containers. There are some advantages to this setup and two come into mind. Firstly, you can scale such OpenShift cluster up or down by adding/removing oVirt VMs according to your needs. Secondly, you don't need to set up all of this yourself.
For OpenShift 3, Red Hat provides detailed guide on how to go about this. Part of that guide are Ansible playbooks that automate the deployment for you as long as you provide required variables. More info here: https://docs.openshift.com/container-platform/3.11/install_config/configuring_for_rhv.html
When it comes to OpenShift 4, there are two types of deployment. There's UPI - user provisioned infrastructure. In that scenario, you prepare all the resources for OpenShift 4 beforehand and deploy it in that existing environment. And there's also IPI - installer provisioned infrastructure. This means that you just give the installer access to your environment (e.g. AWS public cloud) and the installer provisions resources for itself based on recommendations and best practices. At this point, neither UPI nor IPI is supported for oVirt. However there is a GitHub repository<https://github.com/sa-ne/openshift4-rhv-upi> that can guide you through UPI installation on oVirt and also provides automation playbooks for that. I have personally followed the steps from the repository and deployed OpenShift 4.2 on top of oVirt without any major issues. As far as I remember, I might have needed occasional variable here and there but the process worked.

Hope this helps!
Jan

On Tue, Dec 24, 2019 at 8:21 PM Robert Webb <rwebb@ropeguru.com<mailto:rwebb@ropeguru.com>> wrote:
Hi Jan,

Honestly, I didn't have anything specific in mind, just what is being used out there today and what may be more prevalent.

Just getting my oVIrt set up and want to know what might be recommended.  Would probably be mostly deploying images like Homeassistent, piHole, etc.. for now.

I guess if there is good oVirt direct integration, it would be nice to keep it all in a single interface.

Thanks..

________________________________________
From: Jan Zmeskal <jzmeskal@redhat.com<mailto:jzmeskal@redhat.com>>
Sent: Tuesday, December 24, 2019 1:54 PM
To: Robert Webb
Cc: users
Subject: Re: [ovirt-users] oVirt and Containers

Hi Robert,

there are different answers based on what you mean by integrating oVirt and containers. Do you mean:

- Installing container management (Kubernetes or OpenShift) on top of oVirt and using oVirt as infrastructure?
- Managing containers from oVirt interface?
- Running VM workloads inside containers?
- Something different?

I can elaborate more based on your specific needs

Best regards
Jan

On Tue, Dec 24, 2019 at 3:52 PM Robert Webb <rwebb@ropeguru.com<mailto:rwebb@ropeguru.com><mailto:rwebb@ropeguru.com<mailto:rwebb@ropeguru.com>>> wrote:
I was searching around to try and figure out the best way to integrate oVirt and containers.

I have found some sites that discuss it but all of them are like 2017 and older.

Any recommendations?

Just build VM’s to host containers or is there some direct integration?

Here are a couple of the old sites

https://fromanirh.github.io/containers-in-ovirt.html

https://kubernetes.io/docs/setup/production-environment/on-premises-vm/ovirt/

https://www.ovirt.org/develop/release-management/features/integration/container-support.html
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--

Jan Zmeskal

Quality Engineer, RHV Core System

Red Hat <https://www.redhat.com>

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--

Jan Zmeskal

Quality Engineer, RHV Core System

Red Hat <https://www.redhat.com>

[https://marketing-outfit-prod-images.s3-us-west-2.amazonaws.com/f5445ae0c9ddafd5b2f1836854d7416a/Logo-RedHat-Email.png]<https://www.redhat.com>