I'm running my rpi 4 as a kubernetes controller on Ubuntu. It also has wireguard hooked up with 8 dedicated server nodes. The SD card class A2 has been enough for disk performance, no SSD needed.
It's mounted on a din rail with the DINr mount plate and a Poe hat, makes it very compact and it fits in my small fiber network clauset. Planning to add 2 more for hight availability.
It's mounted on a din rail with the DINr mount plate and a Poe hat, makes it very compact and it fits in my small fiber network clauset. Planning to add 2 more for hight availability.