Upgrade Kubernetes from 1.22 to 1.25

2023-03-20

Finally I am able to touch my K8s setup during Feb, but sadly after I leave, the machine stop working because of losen wire within the computer case…

I take the chance to upgrade from 1.22 to 1.25, here are the notes

Promox multi-node setup takes time. Don’t know why the UI does not work
Buy a shelf for your home lab is a must. It is not difficult, just go to IKEA
when NFS share is across subnet and become too slow, NFS-provisioning simply does not work
Don’t really understand ZFS multi-node setup, may setup a lab for this
ZFS on K8s is a new idea for me, need to test it out
Can K8s provision ZFS directly from Promox, seems there are efforts in creating node (pass thru disk with Promox) across cluster.
Running Grafana stack almost eating me 16G ram, may need to find way to expand my cluster.
A normal PC should be what I am aiming for. Aiming for at least 64GB ram and more core, with at least 3x disk bay. In another words, Intel NUC may not worth it.
Instruction of building a new K8s cluster should have changed. still HAProxy and keepalived?