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Proxmox - Terraform

TrueNas - Upgrading my Hardkernel Odroid H2: Finding the Right Balance Between NVMe and SATA Storage

TrueNas - Upgrading my Hardkernel Odroid H2: Finding the Right Balance Between NVMe and SATA Storage

In my previous blog post, I discussed upgrading my Hardkernel Odroid H2 with four NVMe drives, pushing the limits of what was considered possible. This time, I want to share my final storage configuration and why I decided to mix NVMe and traditional spinning disks instead of going all-in on

TrueNas - Upgrading my Hardkernel Odroid H2 with 4 NVMe Drives - Making the actually impossible possible

TrueNas - Upgrading my Hardkernel Odroid H2 with 4 NVMe Drives - Making the actually impossible possible

How I Discovered This Upgrade While I was looking for new NAS options, I ended up browsing Hardkernel’s product website. I saw that the new H4 Plus now offers more SATA ports, and since its compact size is perfect for me, it seemed like the best option. As I

Reviving My Beloved MacBook Pro 2010 with OpenCore Legacy Patcher and Linux Mint 21

Reviving My Beloved MacBook Pro 2010 with OpenCore Legacy Patcher and Linux Mint 21

I've always had a special connection with my MacBook Pro 2010. It’s not just any laptop—it’s a device I built myself years ago by combining two broken MacBook Pros I bought on eBay. Something you can no longer easily do so nowadays since the MacBooks

I screwed up big time!!!

I screwed up big time!!!

How I Accidentally Nuked My Blog (And What I Learned About Backups) A tale of overconfidence, tiredness, Kubernetes PVs, and a backup strategy that wasn't quite what I thought it was. Spoiler: my blog didn't survive. The Setup: My blog is hosted on a self-managed Ghost

Upgrade or Downgrade K3s

Upgrade or Downgrade K3s

This will be a very short but helpful post. I use k3s on my VPS server because it is a very stable and simple K8s distribution. Upgrading is also very easy. To upgrade to the latest stable release I simply run the command I originally used to install K3s. curl

Cleaning Up My Ceph Cluster with OSD Backfillfull: A Journey to Optimal Performance

Cleaning Up My Ceph Cluster with OSD Backfillfull: A Journey to Optimal Performance

Managing a Ceph cluster can be a complex yet rewarding experience. Recently, I encountered an issue with OSD (Object Storage Daemon) backfillfull, which required immediate attention to ensure the smooth operation of my storage infrastructure. In this blog post, I'll share the steps I took to resolve the

Deploy Plausible Analytics in Kubernetes

Deploy Plausible Analytics in Kubernetes

Plausible is a GDPR, CCPA and cookie law compliant Google Analytics alternative, that can help you analyse traffic on your web services. They offer a paid service but there is also the option to run a Self-Hosted installation. Unfortunately they don't offer an official Helm Chart (yet), but

Kolla-Ansible OpenStack 2023.2 released - How to upgrade

Kolla-Ansible OpenStack 2023.2 released - How to upgrade

Beginning of December Kolla-Ansible released their support for OpenStack 2023. (Bobcat). Most notable changes (to me) are: * RabbitMQ quorum queues * These are now enabled by default and I highly recommend using them. Without it you will run into problems if your control node goes down that currently holds the VIP.

Update: Deploying OpenStack with Kolla-Ansible on VMware ESXi using Terraform

Update: Deploying OpenStack with Kolla-Ansible on VMware ESXi using Terraform

It's been quite a while since my last post as I had a lot of stuff to do at my workplace and besides that I studied for VMware VCP-DCV 2023 certification. The learning paid off and I received certification. :) But finally I found some time to enhance my

Velero backup to TrueNAS S3 with free Let's Encrypt certificate

Velero backup to TrueNAS S3 with free Let's Encrypt certificate

In one of my previous blogposts, I explained how to install and configure Velero with TrueNAS as an S3 storage backend. My whole blogpost was focused on running everything on the local network. Since I have my K8s cluster running on a VPS I needed to find a way to

Kolla-Ansible Cinder Containers unhealthy

Kolla-Ansible Cinder Containers unhealthy

I recently replaced all 3 control nodes in my OpenStack cluster and once I replaced the last control node, all of a sudden three of the four Cinder containers became unhealty. Looking at the logs of the cinder_api container revealed the following error: 2023-05-30 21:31:36.350636 Timeout

Deploying VMs in Virtualbox using Terraform Provider terrafarm/virtualbox

Deploying VMs in Virtualbox using Terraform Provider terrafarm/virtualbox

Today I simply wanted to deploy 1-2 VMs in virtualbox using the Terraform provider terrafarm/virtualbox. What should have been very easy turned out to take me around 15-20 minutes to get it finally working. Here is what I had to do on my Windows 10 machine to get it

Deploying OpenStack with Kolla-Ansible on VMware ESXi using Terraform

Deploying OpenStack with Kolla-Ansible on VMware ESXi using Terraform

If you did read one of my very first blog posts about the deployment of OpenStack in my homelab you might want to have a look at this new article, where I will do the same but instead of using Vagrant I will use Terraform. And if you wonder why

Failed to replace a failed disk in TrueNAS Scale - device busy

Failed to replace a failed disk in TrueNAS Scale - device busy

Yes, hard disks do break from time to time. But thanks to ZFS and RAIDZ-1, there is no reason to panic. Or is there? Interestingly the disk was not reported by ZFS to be broken but there was a message in the WebUI indicating that something is wrong. So I

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