Cluster Nodes
Talos Linux VM configuration, node IPs, and Proxmox specs.
Node Configuration
All nodes are QEMU VMs on a Proxmox host, defined in infra/pulumi/talos.go.
Control Plane Nodes
| Name | IP | vCPUs | RAM | Disk | CPU Priority |
|---|---|---|---|---|---|
| k8s-controller1 | 192.168.1.211 | 4 | 6 GiB | 30 GiB | 1024 (high) |
| k8s-controller2 | 192.168.1.212 | 4 | 6 GiB | 30 GiB | 1024 (high) |
| k8s-controller3 | 192.168.1.213 | 4 | 6 GiB | 30 GiB | 1024 (high) |
Control plane nodes carry a floating VIP (192.168.1.210) on their primary interface. This VIP is configured as a Talos machine patch so the API server endpoint remains stable regardless of which node holds it.
Worker Nodes
| Name | IP | vCPUs | RAM | Disk | CPU Priority |
|---|---|---|---|---|---|
| k8s-worker1 | 192.168.1.221 | 4 | 6 GiB | 125 GiB | 100 (standard) |
| k8s-worker2 | 192.168.1.222 | 4 | 6 GiB | 125 GiB | 100 (standard) |
| k8s-worker3 | 192.168.1.223 | 4 | 6 GiB | 125 GiB | 100 (standard) |
| k8s-worker4 | 192.168.1.224 | 4 | 6 GiB | 125 GiB | 100 (standard) |
Workers use 125 GiB disks to provide ~100 GiB of usable Longhorn storage per node.
Talos Version
Talos v1.12.4 — cluster name talos-cluster.
Talos Images
Two Talos image variants are used:
Base image (schematic 88d1f7a5c4f1d3aba7df787c448c1d3d008ed29cfb34af53fa0df4336a56040b):
- Extensions:
iscsi-tools,util-linux-tools,qemu-guest-agent - Used by: control plane nodes + k8s-worker1–3
GPU image (schematic 901b9afcf2f7eda57991690fc5ca00414740cc4ee4ad516109bcc58beff1b829):
- Extensions: all base extensions +
nvidia-container-toolkit,nvidia-open-gpu-kernel-modules - Used by: k8s-worker4
Worker Node Kernel Modules
All workers load the following kernel modules via Talos machine config patches:
nbd, iscsi_tcp, iscsi_generic, configfs
The GPU worker (k8s-worker4) additionally loads:
nvidia, nvidia_uvm, nvidia_drm, nvidia_modeset
Network Configuration
Each node is assigned a static IP via Talos machine config (patched by Pulumi at provision time):
machine:
network:
hostname: k8s-worker1
interfaces:
- deviceSelector:
physical: true
dhcp: false
addresses:
- 192.168.1.221/24
routes:
- gateway: 192.168.1.254
nameservers:
- 1.1.1.1
- 192.168.1.254
Longhorn Node Labels
All worker nodes carry the label node.longhorn.io/create-default-disk: config, applied via the Talos worker machine patch. This tells Longhorn to provision its default disk on every worker.