Homelab in 2022 - Hardware

After finally finishing my series on netbooting Raspberry Pis, the initial trigger for creating this blog, I want to give an overview of what my current Homelab is looking like. In this article, I will provide an overview of the hardware and hosts that I currently have. The next one will be about the stack I’m using, with a bit more detail on my storage solution, Ceph, and my cluster running Nomad, Consul and Vault....

October 27, 2022 · 14 min · Michael

Configuring an Udoo x86 II Ultra for Netbooting

I’m currently planning to switch my Homelab to a cluster of eight Raspberry Pi CM4 modules with two Turing Pi 2 boards. That means a full switch to the aarch64/ARM processor architecture. But not all software supports aarch64 yet. So I went looking for a small x86 machine which doesn’t cost too much, doesn’t take too much space, and doesn’t consume too much power. What I found was the Udoo x86 II Ultra....

September 29, 2022 · 17 min · Michael

Netboot Raspberry Pi Part VI: Conclusion

Finally, the Netboot Raspberry Pi series concludes with this post. I will be going over both, what figuring out the actual netboot and blogging about it was like. If you’ve followed this series, I’m hoping that you’ve learned a lot more than “just” how to produce an image that can netboot a Raspberry Pi 4. For me, the information on the side, like how the initramfs works in the Linux boot process, was more interesting than then netboot itself....

September 25, 2022 · 4 min · Michael

Netboot Raspberry Pi Part V: Ansible Playbook

This is the fifth part of my Raspberry Pi netboot series. The introduction with an overview and links to previous articles can be found here. In this post, we will go over the Ansible playbook I use to provision my Pis. This playbook’s intention is not to fully provision the Pi for use, e.g. it will not set up Nomad or Ceph. It will only prepare the image to netboot and set up my normal Ansible user for my main provisioning Ansible playbooks, to be executed after first boot....

September 25, 2022 · 15 min · Michael

Netboot Raspberry Pi Part IV: Using Packer and Ansible to create a Raspberry Pi Ubuntu Netboot Image

This is the fourth part of the Pi netboot series. Find the previous parts from the introductory article here. In this part of the series, I will go over using a combination of HashiCorp Packer and Ansible to create an Ubuntu Linux image for a netbootable Raspberry Pi, using NFS for the boot partition and a Ceph RBD as the root device. The goal here is to show you how to set up Packer and what configuration is needed to run an Ansible playbook in an aarch64 image on a x86_64 machine....

September 24, 2022 · 12 min · Michael