I have upgraded my home lab from a simple wall mountable rack to a media / network rack. Which I then added a wood top to use as desk space for a 3D Printer. Other changes include: A second Nighthawk I had laying around and made it a network wide VPN using DD-WRT. 5 Rack mounted Raspberry Pi 4s. Netgear 16 Port POE Switch to power the Pis. Dell Optiplex running OPNSENSE firewall...
Continue Reading...Raspberry Pi 1 - 3 contained all of their firmware on the SD Card. This has changed with the Raspberry Pi 4. The device now has onboard upgradeable firmware stored on an EEPROM chip seperate from your storage. Updating this firmware is very important as the newer updates reduce power usage, which in turn reduces how hot it gets. Theres a new utility called rpi-eeprom...
Continue Reading...Kubernetes Cluster with Simple NodeJS Kubernetes deployment. Requirements: At least 2 Raspberry Pi 4 boards, with some way to power each one. I will be using 4 in this example. A decent speed SD card per Pi. Ubuntu Server 20.04 LTS Installation Flash each SD card with Ubuntu Server 20.04 LTS using something like balenaEtcher..
Continue Reading...Raspberry Pi 4 Cluster originally built this Raspberry Pi Cluster to learn how to use Kubernetes. It's built with 4 Raspberry Pi 4 8gb boards and currently running Kubernetes with MicroK8s on Ubuntu Server 20.04 LTS. I had been looking for a way to power all 4 with one PSU, instead of 4 separate ones. At first I thought about using some sort of powered USB hub but I don't think I would be able to get consistent power...
Continue Reading...What's a Raspberry Pi? No you can't eat it. The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or tv. It was originally developed by the Raspberry Pi Foundation to promote teaching of basic computer science in schools and developing countries...
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