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devops/README.md
Marcus (agent-cos) 7b5ffe6b11 Initial cluster config: NixOS flake + k3s + 5 node definitions 
- Multi-host flake.nix (3x N97 x86_64 + 2x RPi4 aarch64)
- Shared modules: k3s-cluster, tailscale, meos-gateway
- Node configs: n97-1 (control plane), n97-2/n97-3 (Ollama workers), rpi4-1/rpi4-2 (ARM workers)
- K8s manifests: Forgejo, Postgres (CNPG), Umami, OpenBrain, MeOS Dashboard, MCP servers
- Bootstrap and DB migration scripts
- Migration plan doc (7-day phased rollout)
2026-05-04 12:22:09 -07:00

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sscoble/devops

Infrastructure as code for the Scobleclaw cluster.

Hardware

Node Platform Arch Role RAM Storage
n97-1 GMK N97 x86_64 k3s server 12GB 233GB
n97-2 GMK N97 x86_64 k3s worker 12GB ~233GB
n97-3 GMK N97 x86_64 k3s worker 12GB ~233GB
rpi4-1 RPi 4B aarch64 k3s worker 8GB SD/USB
rpi4-2 RPi 4B aarch64 k3s worker 8GB SD/USB

Network

  • Mesh: Tailscale (all nodes)
  • DNS: os.scoble.me → n97-1 (Tailscale IP), SSL via Let's Encrypt + Cloudflare DNS
  • K8s API: Tailscale-only, no public exposure

Repo Layout

├── README.md
├── flake.nix              # NixOS flake — all 5 nodes
├── hardware-n97.nix       # shared N97 perf tuning
├── hardware-rpi4.nix      # shared RPi4 config
├── modules/
│   ├── k3s-cluster.nix    # shared k3s agent config
│   ├── meos-gateway.nix   # nginx + acme + homepage
│   ├── ollama-worker.nix  # Ollama on worker nodes
│   └── tailscale.nix      # shared Tailscale config
├── nodes/
│   ├── n97-1.nix          # control plane + gateway
│   ├── n97-2.nix          # Ollama worker x86
│   ├── n97-3.nix          # Ollama worker x86
│   ├── rpi4-1.nix         # ARM worker (light services)
│   └── rpi4-2.nix         # ARM worker (umami)
├── apps/                  # K8s manifests + Helm values
│   ├── forgejo/
│   ├── postgres/
│   ├── umami/
│   ├── openbrain/
│   ├── meos-dashboard/
│   └── mcp-servers/
├── scripts/
│   ├── bootstrap-node.sh  # initial node setup
│   └── migrate-db.sh      # Postgres migration from bare to K8s
└── docs/
    └── migration.md       # transition plan

Quickstart

# Build and deploy a node
nixos-rebuild switch --flake .#n97-1 --target-host root@100.x.x.x

# Access cluster
kubectl --kubeconfig /etc/rancher/k3s/k3s.yaml get nodes

# Deploy app
kubectl apply -k apps/forgejo/