I just uploaded to Github: https://github.com/akashrawal/nsd4k

I only made it for myself, so expect very rough edges in there.

I run a crude automation on top of OpenSSL CA. It checks for certain labels attached to kubernetes services. Based on that it creates kubernetes secrets containing the generated certificates.

The level1 video shows thunderbolt networking though. It is an interesting concept, but it requires nodes with at-least 2 thunderbolt ports in order to have more than 2 nodes.

I plan to have 2 switches.

Of course, if a switch fails, client devices connected to the switch would drop out, but any computer connected to both switches should have link redundancy.