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+---
+title: "On stateless compute networks"
+date: "2024-11-10"
+draft: true
+---
+
+On the topic of distributed systems and clustering,
+I am quite invested in the idea of compute nodes that rely entirely on the network for configuration.
+Arbitrary nodes can join a pre-existing cluster,
+offering their CPU time and memory for computation without relying on any pre-existing configuration on the node itself.
+In other words, any computer could pick up work,
+only needing power and a network connection to the cluster.
+
+Perhaps this eventually leads into a "self-healing" cluster where only one node is manually bootstrapped,
+which then serves a _configuration endpoint_ for other stateless nodes to reach out to for their instructions,
+which they will then also serve once they are themselves ready.
+
+Early revisions of these notes mention Kubernetes,
+but I am also trying to achieve similar results with NixOS on a custom project.
+In any case, these are my ever-updating notes towards a general implementation of a stateless distributed systems architecture.
+
+## Self healing cluster
+
+Assuming control of an external DHCP server,
+a self healing Kubernetes cluster would be feasible,
+with the PXE boot artifacts supplied by the cluster itself.
+That is, as long as one node is running the pod hosting the artifacts on a given endpoint,
+other nodes can boot those artifacts and join the cluster,
+thereby being able to host the artifacts as well.
+
+## Configuration endpoint
+
+The nodes shouldn't require a disk installed to be able to join the network.
+Rather, the lofty goal of zero-configuration compute nodes passes the job of node initialization to the supporting network.
+This is accomplished with PXE boot instructions supplied over DHCP.
+
+I delegate the following tasks to a single node in the subnet:
+
+- Gateway: Optional outbound connections if required
+- DHCP server: Cluster IPAM
+- TFTP and HTTP server: Serves iPXE firmware and kernel/initrd artifacts