I finally acquired enough Pi 4's (the 2GB RAM version—I can't find the 4GB version anywhere yet) to rebuild my Kubernetes cluster (www.pidramble.com) using the

I finally acquired enough Pi 4's (the 2GB RAM version—I can't find the 4GB version anywhere yet) to rebuild my Kubernetes cluster (www.pidramble.com) using the latest Pi. So far my takeaways are: 1. The official PoE HAT seems to work fine... but you can't shut down the Pi and keep it shut down—it seems to reboot if powered by the PoE HAT :/ 2. The Pi 4 feels slightly faster, but having double the RAM (I can't find 4 GB Pi 4's in stock anywhere) is reallllly nice for Kubernetes. 3. Docker is annoying to get running on Raspbian 10/Buster, since the standard repo has a broken version, and Docker's repo only has listings for Raspbian 9/Stretch. Therefore you have to hack around the install script a tiny bit to get Docker installed. I currently have Kubernetes running fine, but am having issues with the cluster networking (this seems to happen any time I make major changes to it either in hardware or software). You can follow along on the adventure here: https://github.com/geerlingguy/raspberry-pi-dramble/issues/156 https://github.com/geerlingguy/raspberry-pi-dramble/issues/1... I'm going to also be doing some more performance testing and benchmarks and sharing more thoughts in some blog posts in the future, but for now, I'm happy to have a version of the cluster that has enough RAM per-device that I don't feel like Kubernetes is running by the skin of its teeth!