I'm looking for an advice whether it's possible to run K8s master + node on 2G x86_64 box? Atomic PI is based on X86 and has 2G while it's cheap. If I want 4G or 8G boards such as LattePanda Alpha or Udoo X86, they cost nearly 10 times more.
1) So first question whether it's possible to build a cluster and it will work without any extra pods/services on 2G three boxes?
2) What will be approximate remaining RAM left? So I will be able to start some service for demonstration/learning purpose to see how ingress, built-in load balancer, cert-manager or similar things work.
3) Is Atomic PI suitable at all? Some specs here: Intel Atom x5-Z8350 quad core CPU with 2M Cache 1.92 Ghz, 16G SD card, 2GB DDR3L-1600, architecture x86 64 bit, runs Ubuntu 18.04 x86_64
4) Any ways to compensate memory usage (e.g. exclude dashboard, etc.)? How about starting kubelet with
--fail-swap-on=false and specifying no memory limits for my app containers. The purpose is to use swap, because I'm not interested in performance in this project.
Preferred 3 boards in total as masters and nodes.