Etcd

Big Idea For a while the K8s cluster in my homelab has been in the precarious situation of only having a single master node. This has bitten me a couple of times when the master node (i.e the “server node” in k3s) has been snafu’ed. Now that I have compute available on my proxmox server, I want to take the time to virtualize two additional master nodes. Doing this will require understanding a few things at the outset:...

Big Idea With the addition of a Proxmox server to my homelab I have been planning to scale out the control plane of my k3s cluster by virtualizing an additional two master nodes for a HA set up. I was aware that this would involve replicated state in my etcd backed control plane and that etcd itself relies on the Raft concensus algorithm. For this reason, I decided to take a deeper dive into the inner workings of Raft....