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A collection of 11 posts

Unlocking GPU powered Kubernetes in Openstack Magnum with Kolla-Ansible

Unlocking GPU powered Kubernetes in Openstack Magnum with Kolla-Ansible

Introduction Kubernetes has become the go-to platform for container orchestration, and OpenStack Magnum simplifies its deployment by offering native integration with OpenStack’s infrastructure. With the rise of GPU-accelerated workloads in fields like AI, machine learning, and scientific computing, the ability to leverage NVIDIA GPUs within Kubernetes clusters has become

09 Jan 2025 6 min read

Enabling GPU Passthrough in OpenStack with Kolla Ansible for High-Performance Workloads/

Enabling GPU Passthrough in OpenStack with Kolla Ansible for High-Performance Workloads/

In the world of high-performance computing (HPC) and artificial intelligence (AI), GPUs are the unsung heroes, delivering the computational power needed for demanding workloads. If you're using OpenStack with Kolla Ansible and want to unleash the full potential of GPUs for your virtual machines, this guide is for

08 Jan 2025 7 min read

Proxmox - Tired of deploying from ISO? Upload VM image

Proxmox - Tired of deploying from ISO? Upload VM image

Recently, I had to replace my homelab VMware ESXi server… we all know why. After considering the many open-source options available, I decided on Proxmox due to its similarities with ESXi. Don’t get me wrong—I love OpenStack, but for a single server setup, it felt like too much

18 Oct 2024 3 min read

OpenStack / Cloud-init - Deploy Docker Ubuntu VM in under 2 minutes

OpenStack / Cloud-init - Deploy Docker Ubuntu VM in under 2 minutes

In this guide, I’ll show you how to deploy a fully configured Ubuntu VM with Docker using cloud-init in OpenStack. With this setup, you’ll have Docker up and running in just under two minutes! Prerequisites Before we begin, make sure you have the following ready: * Access to your

16 Oct 2024 3 min read

Deploying Nextcloud in K8s using HELM

Deploying Nextcloud in K8s using HELM

A friend recently wanted to give me photos that he had taken at a party. Copying them to an old usb stick just took too long and so I offered to send him a link where he could upload the pictures. Yes, there are numerous online services that could be

01 Sep 2024 3 min read

Deploy Kubernetes Clusters in OpenStack within minutes with Magnum

OpenStack Magnum

Deploy Kubernetes Clusters in OpenStack within minutes with Magnum

Now that we have set up our cool and high available OpenStack cloud, it is time to try out the various services that you can provide to your end users in OpenStack. Today we will take a look at Magnum. From the official OpenStack Magnum website: Magnum is an OpenStack

25 Feb 2024 10 min read

OpenStack Magnum Kubernetes Cluster API driver in Kolla-Ansible

OpenStack Magnum

OpenStack Magnum Kubernetes Cluster API driver in Kolla-Ansible

Update 27.12.2023 With the release of Kolla-Ansible OpenStack 2023.2 (Bobcat), the CAPI driver is now already included in Magnum. While the Magnum docs are not yet updated, the release notes state this: Adds support for copying in {{ node_custom_config }}/magnum/kubeconfig to Magnum containers for magnum-cluster-api

17 Dec 2023 17 min read

Kolla-Ansible upgrade from Yoga to Zed

Kolla-Ansible upgrade from Yoga to Zed

Since there still seems to be no official guide on how to upgrade from OpenStack release Yoga to Zed with Kolla-Ansible, I have put together the steps that I used to successfully upgrade. I hit a few problems here and there but finally managed to get it working. My OpenStack

21 May 2023 3 min read

OpenStack Magnum insecure registry

OpenStack Magnum

OpenStack Magnum insecure registry

It is very convenient to use a local docker registry when deploying Kubernetes clusters using Magnum in OpenStack. Especially if you like me try to deploy multiple clusters to test several settings. It is just way faster to pull the images from the local network instead of the internet. In

23 Apr 2023 4 min read

Kolla-Ansible Zun (Container Service) deployment fails

Kolla-Ansible Zun (Container Service) deployment fails

Update: Looks like the problem has now also been detected by the kolla-ansible team. There is a bug report https://bugs.launchpad.net/zun/+bug/2007142 and they have updated the ZUN kolla-ansible documentation https://docs.openstack.org/kolla-ansible/yoga/reference/compute/zun-guide.html with a solution.The idea is

03 Mar 2023 2 min read

Deploying OpenStack with Kolla-Ansible

Deploying OpenStack with Kolla-Ansible

UPDATE Please see my new article for a much simpler and easier method that explains how to achieve the same using Terraform. Would you like to set up a complete OpenStack cluster? Then you can easily do this with Kolla-Ansible. Kolla-Ansible is based on Ansible, as the name suggests, and

30 Oct 2022 11 min read

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